/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_7.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 15:25:46,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 15:25:46,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 15:25:46,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 15:25:46,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 15:25:46,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 15:25:46,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 15:25:46,647 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-15 15:25:46,675 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 15:25:46,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 15:25:46,676 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 15:25:46,676 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 15:25:46,677 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 15:25:46,677 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 15:25:46,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 15:25:46,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 15:25:46,677 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 15:25:46,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 15:25:46,678 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 15:25:46,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 15:25:46,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 15:25:46,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 15:25:46,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 15:25:46,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 15:25:46,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 15:25:46,679 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 15:25:46,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 15:25:46,679 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 15:25:46,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 15:25:46,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 15:25:46,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 15:25:46,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 15:25:46,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 15:25:46,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:25:46,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 15:25:46,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 15:25:46,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 15:25:46,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 15:25:46,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 15:25:46,681 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 15:25:46,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 15:25:46,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 15:25:46,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 15:25:46,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 15:25:46,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 15:25:46,881 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 15:25:46,882 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 15:25:46,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_7.bpl [2022-03-15 15:25:46,883 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_7.bpl' [2022-03-15 15:25:46,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 15:25:46,906 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 15:25:46,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 15:25:46,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 15:25:46,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 15:25:46,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:25:46" (1/1) ... [2022-03-15 15:25:46,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:25:46" (1/1) ... [2022-03-15 15:25:46,951 INFO L137 Inliner]: procedures = 8, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 15:25:46,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 15:25:46,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 15:25:46,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 15:25:46,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 15:25:46,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:25:46" (1/1) ... [2022-03-15 15:25:46,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:25:46" (1/1) ... [2022-03-15 15:25:46,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:25:46" (1/1) ... [2022-03-15 15:25:46,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:25:46" (1/1) ... [2022-03-15 15:25:46,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:25:46" (1/1) ... [2022-03-15 15:25:46,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:25:46" (1/1) ... [2022-03-15 15:25:46,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:25:46" (1/1) ... [2022-03-15 15:25:46,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 15:25:46,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 15:25:46,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 15:25:46,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 15:25:46,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:25:46" (1/1) ... [2022-03-15 15:25:46,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:25:46,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:25:47,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 15:25:47,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 15:25:47,069 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-03-15 15:25:47,069 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-03-15 15:25:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-03-15 15:25:47,070 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-03-15 15:25:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-03-15 15:25:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-03-15 15:25:47,070 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-03-15 15:25:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-03-15 15:25:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-03-15 15:25:47,070 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-03-15 15:25:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-03-15 15:25:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-03-15 15:25:47,071 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-03-15 15:25:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-03-15 15:25:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-03-15 15:25:47,071 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 15:25:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 15:25:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 15:25:47,073 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-03-15 15:25:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-03-15 15:25:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-03-15 15:25:47,073 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2022-03-15 15:25:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2022-03-15 15:25:47,073 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2022-03-15 15:25:47,074 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 15:25:47,105 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 15:25:47,106 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 15:25:47,165 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 15:25:47,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 15:25:47,169 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 15:25:47,171 INFO L202 PluginConnector]: Adding new model example_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:25:47 BoogieIcfgContainer [2022-03-15 15:25:47,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 15:25:47,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 15:25:47,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 15:25:47,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 15:25:47,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:25:46" (1/2) ... [2022-03-15 15:25:47,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75328d42 and model type example_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:25:47, skipping insertion in model container [2022-03-15 15:25:47,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:25:47" (2/2) ... [2022-03-15 15:25:47,176 INFO L111 eAbstractionObserver]: Analyzing ICFG example_7.bpl [2022-03-15 15:25:47,179 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 15:25:47,179 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 15:25:47,179 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 15:25:47,179 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 15:25:47,213 INFO L148 ThreadInstanceAdder]: Constructed 49 joinOtherThreadTransitions. [2022-03-15 15:25:47,282 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 15:25:47,299 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 15:25:47,299 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-03-15 15:25:47,306 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 80 transitions, 342 flow [2022-03-15 15:25:48,328 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17478 states, 17477 states have (on average 5.213709446701379) internal successors, (91120), 17477 states have internal predecessors, (91120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:48,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 17478 states, 17477 states have (on average 5.213709446701379) internal successors, (91120), 17477 states have internal predecessors, (91120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:48,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:48,610 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:48,610 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:48,611 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:48,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:48,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1122430305, now seen corresponding path program 1 times [2022-03-15 15:25:48,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:48,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168746156] [2022-03-15 15:25:48,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:48,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:48,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:48,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:48,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168746156] [2022-03-15 15:25:48,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168746156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:48,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:48,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:25:48,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593082302] [2022-03-15 15:25:48,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:48,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:25:48,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:48,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:25:48,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:25:48,893 INFO L87 Difference]: Start difference. First operand has 17478 states, 17477 states have (on average 5.213709446701379) internal successors, (91120), 17477 states have internal predecessors, (91120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:49,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:49,210 INFO L93 Difference]: Finished difference Result 13536 states and 69034 transitions. [2022-03-15 15:25:49,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:25:49,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:49,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:49,410 INFO L225 Difference]: With dead ends: 13536 [2022-03-15 15:25:49,411 INFO L226 Difference]: Without dead ends: 13536 [2022-03-15 15:25:49,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:25:49,420 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 55 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:49,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 31 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:25:49,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13536 states. [2022-03-15 15:25:50,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13536 to 13536. [2022-03-15 15:25:50,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13536 states, 13535 states have (on average 5.100406353897303) internal successors, (69034), 13535 states have internal predecessors, (69034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:50,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13536 states to 13536 states and 69034 transitions. [2022-03-15 15:25:50,311 INFO L78 Accepts]: Start accepts. Automaton has 13536 states and 69034 transitions. Word has length 29 [2022-03-15 15:25:50,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:50,312 INFO L470 AbstractCegarLoop]: Abstraction has 13536 states and 69034 transitions. [2022-03-15 15:25:50,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:50,312 INFO L276 IsEmpty]: Start isEmpty. Operand 13536 states and 69034 transitions. [2022-03-15 15:25:50,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:50,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:50,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:50,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 15:25:50,453 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:50,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:50,455 INFO L85 PathProgramCache]: Analyzing trace with hash 172144425, now seen corresponding path program 1 times [2022-03-15 15:25:50,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:50,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142695575] [2022-03-15 15:25:50,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:50,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:50,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:50,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:50,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142695575] [2022-03-15 15:25:50,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142695575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:50,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:50,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:25:50,543 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378358336] [2022-03-15 15:25:50,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:50,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:25:50,556 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:50,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:25:50,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:25:50,558 INFO L87 Difference]: Start difference. First operand 13536 states and 69034 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:50,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:50,933 INFO L93 Difference]: Finished difference Result 10782 states and 53509 transitions. [2022-03-15 15:25:50,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:25:50,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:50,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:51,009 INFO L225 Difference]: With dead ends: 10782 [2022-03-15 15:25:51,010 INFO L226 Difference]: Without dead ends: 10782 [2022-03-15 15:25:51,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:25:51,014 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 47 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:51,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 27 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:25:51,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10782 states. [2022-03-15 15:25:51,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10782 to 10782. [2022-03-15 15:25:51,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10782 states, 10781 states have (on average 4.963268713477414) internal successors, (53509), 10781 states have internal predecessors, (53509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:51,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10782 states to 10782 states and 53509 transitions. [2022-03-15 15:25:51,449 INFO L78 Accepts]: Start accepts. Automaton has 10782 states and 53509 transitions. Word has length 29 [2022-03-15 15:25:51,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:51,450 INFO L470 AbstractCegarLoop]: Abstraction has 10782 states and 53509 transitions. [2022-03-15 15:25:51,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:51,450 INFO L276 IsEmpty]: Start isEmpty. Operand 10782 states and 53509 transitions. [2022-03-15 15:25:51,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:51,494 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:51,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:51,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 15:25:51,496 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:51,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:51,498 INFO L85 PathProgramCache]: Analyzing trace with hash -664728203, now seen corresponding path program 1 times [2022-03-15 15:25:51,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:51,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331394732] [2022-03-15 15:25:51,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:51,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:51,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:51,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331394732] [2022-03-15 15:25:51,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331394732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:51,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:51,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:25:51,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860350689] [2022-03-15 15:25:51,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:51,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:25:51,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:51,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:25:51,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:25:51,564 INFO L87 Difference]: Start difference. First operand 10782 states and 53509 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:51,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:51,791 INFO L93 Difference]: Finished difference Result 9081 states and 43708 transitions. [2022-03-15 15:25:51,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:25:51,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:51,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:51,832 INFO L225 Difference]: With dead ends: 9081 [2022-03-15 15:25:51,833 INFO L226 Difference]: Without dead ends: 9081 [2022-03-15 15:25:51,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:25:51,839 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 43 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:51,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 23 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:25:51,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9081 states. [2022-03-15 15:25:52,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9081 to 9081. [2022-03-15 15:25:52,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9081 states, 9080 states have (on average 4.8136563876651985) internal successors, (43708), 9080 states have internal predecessors, (43708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:52,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9081 states to 9081 states and 43708 transitions. [2022-03-15 15:25:52,163 INFO L78 Accepts]: Start accepts. Automaton has 9081 states and 43708 transitions. Word has length 29 [2022-03-15 15:25:52,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:52,163 INFO L470 AbstractCegarLoop]: Abstraction has 9081 states and 43708 transitions. [2022-03-15 15:25:52,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:52,164 INFO L276 IsEmpty]: Start isEmpty. Operand 9081 states and 43708 transitions. [2022-03-15 15:25:52,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:52,199 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:52,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:52,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 15:25:52,200 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:52,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:52,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1350859799, now seen corresponding path program 1 times [2022-03-15 15:25:52,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:52,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035813414] [2022-03-15 15:25:52,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:52,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:52,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:52,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:52,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035813414] [2022-03-15 15:25:52,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035813414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:52,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:52,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:25:52,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684243501] [2022-03-15 15:25:52,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:52,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:25:52,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:52,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:25:52,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:25:52,221 INFO L87 Difference]: Start difference. First operand 9081 states and 43708 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:52,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:52,311 INFO L93 Difference]: Finished difference Result 6732 states and 32188 transitions. [2022-03-15 15:25:52,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:25:52,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:52,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:52,348 INFO L225 Difference]: With dead ends: 6732 [2022-03-15 15:25:52,348 INFO L226 Difference]: Without dead ends: 6732 [2022-03-15 15:25:52,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:25:52,349 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 46 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:52,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 35 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:25:52,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6732 states. [2022-03-15 15:25:52,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6732 to 6732. [2022-03-15 15:25:52,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6732 states, 6731 states have (on average 4.782053186747883) internal successors, (32188), 6731 states have internal predecessors, (32188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:52,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6732 states to 6732 states and 32188 transitions. [2022-03-15 15:25:52,622 INFO L78 Accepts]: Start accepts. Automaton has 6732 states and 32188 transitions. Word has length 29 [2022-03-15 15:25:52,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:52,623 INFO L470 AbstractCegarLoop]: Abstraction has 6732 states and 32188 transitions. [2022-03-15 15:25:52,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:52,623 INFO L276 IsEmpty]: Start isEmpty. Operand 6732 states and 32188 transitions. [2022-03-15 15:25:52,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:52,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:52,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:52,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 15:25:52,640 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:52,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:52,641 INFO L85 PathProgramCache]: Analyzing trace with hash -963872889, now seen corresponding path program 1 times [2022-03-15 15:25:52,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:52,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891848967] [2022-03-15 15:25:52,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:52,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:52,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:52,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891848967] [2022-03-15 15:25:52,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891848967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:52,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:52,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:25:52,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61939019] [2022-03-15 15:25:52,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:52,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:25:52,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:52,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:25:52,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:25:52,658 INFO L87 Difference]: Start difference. First operand 6732 states and 32188 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:52,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:52,702 INFO L93 Difference]: Finished difference Result 5103 states and 24301 transitions. [2022-03-15 15:25:52,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:25:52,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:52,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:52,720 INFO L225 Difference]: With dead ends: 5103 [2022-03-15 15:25:52,720 INFO L226 Difference]: Without dead ends: 5103 [2022-03-15 15:25:52,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:25:52,721 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:52,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 39 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:25:52,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5103 states. [2022-03-15 15:25:52,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5103 to 5103. [2022-03-15 15:25:52,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5102 states have (on average 4.763034104272834) internal successors, (24301), 5102 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:52,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 24301 transitions. [2022-03-15 15:25:52,969 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 24301 transitions. Word has length 29 [2022-03-15 15:25:52,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:52,969 INFO L470 AbstractCegarLoop]: Abstraction has 5103 states and 24301 transitions. [2022-03-15 15:25:52,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:52,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 24301 transitions. [2022-03-15 15:25:52,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:52,982 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:52,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:52,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 15:25:52,983 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:52,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:52,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1900795103, now seen corresponding path program 1 times [2022-03-15 15:25:52,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:52,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049050851] [2022-03-15 15:25:52,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:52,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:53,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:53,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049050851] [2022-03-15 15:25:53,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049050851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:53,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:53,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:53,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651903867] [2022-03-15 15:25:53,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:53,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:25:53,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:53,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:25:53,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:25:53,274 INFO L87 Difference]: Start difference. First operand 5103 states and 24301 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:53,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:53,570 INFO L93 Difference]: Finished difference Result 11675 states and 52105 transitions. [2022-03-15 15:25:53,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:25:53,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:53,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:53,617 INFO L225 Difference]: With dead ends: 11675 [2022-03-15 15:25:53,617 INFO L226 Difference]: Without dead ends: 11260 [2022-03-15 15:25:53,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:53,618 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 160 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:53,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 221 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:25:53,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11260 states. [2022-03-15 15:25:53,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11260 to 5291. [2022-03-15 15:25:53,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 4.75406427221172) internal successors, (25149), 5290 states have internal predecessors, (25149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:53,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 25149 transitions. [2022-03-15 15:25:53,933 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 25149 transitions. Word has length 29 [2022-03-15 15:25:53,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:53,934 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 25149 transitions. [2022-03-15 15:25:53,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:53,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 25149 transitions. [2022-03-15 15:25:53,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:53,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:53,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:53,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 15:25:53,947 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:53,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:53,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1408968163, now seen corresponding path program 2 times [2022-03-15 15:25:53,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:53,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741238293] [2022-03-15 15:25:53,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:53,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:54,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:54,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:54,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741238293] [2022-03-15 15:25:54,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741238293] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:54,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:54,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:54,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077083278] [2022-03-15 15:25:54,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:54,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:25:54,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:54,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:25:54,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:25:54,236 INFO L87 Difference]: Start difference. First operand 5291 states and 25149 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:54,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:54,505 INFO L93 Difference]: Finished difference Result 11802 states and 52584 transitions. [2022-03-15 15:25:54,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:25:54,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:54,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:54,691 INFO L225 Difference]: With dead ends: 11802 [2022-03-15 15:25:54,691 INFO L226 Difference]: Without dead ends: 11180 [2022-03-15 15:25:54,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:54,692 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 170 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:54,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 234 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:25:54,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11180 states. [2022-03-15 15:25:54,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11180 to 5211. [2022-03-15 15:25:54,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.757965451055663) internal successors, (24789), 5210 states have internal predecessors, (24789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:54,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24789 transitions. [2022-03-15 15:25:54,873 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24789 transitions. Word has length 29 [2022-03-15 15:25:54,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:54,873 INFO L470 AbstractCegarLoop]: Abstraction has 5211 states and 24789 transitions. [2022-03-15 15:25:54,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:54,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24789 transitions. [2022-03-15 15:25:54,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:54,884 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:54,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:54,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 15:25:54,884 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:54,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:54,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2120596959, now seen corresponding path program 3 times [2022-03-15 15:25:54,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:54,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5679335] [2022-03-15 15:25:54,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:54,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:55,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:55,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5679335] [2022-03-15 15:25:55,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5679335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:55,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:55,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:55,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020657738] [2022-03-15 15:25:55,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:55,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:25:55,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:55,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:25:55,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:25:55,083 INFO L87 Difference]: Start difference. First operand 5211 states and 24789 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:55,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:55,328 INFO L93 Difference]: Finished difference Result 11578 states and 51663 transitions. [2022-03-15 15:25:55,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:25:55,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:55,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:55,374 INFO L225 Difference]: With dead ends: 11578 [2022-03-15 15:25:55,375 INFO L226 Difference]: Without dead ends: 11163 [2022-03-15 15:25:55,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:55,377 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 162 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:55,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 216 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:25:55,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11163 states. [2022-03-15 15:25:55,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11163 to 5259. [2022-03-15 15:25:55,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7480030429821225) internal successors, (24965), 5258 states have internal predecessors, (24965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:55,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24965 transitions. [2022-03-15 15:25:55,621 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24965 transitions. Word has length 29 [2022-03-15 15:25:55,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:55,621 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 24965 transitions. [2022-03-15 15:25:55,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:55,623 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24965 transitions. [2022-03-15 15:25:55,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:55,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:55,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:55,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 15:25:55,636 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:55,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:55,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1891309949, now seen corresponding path program 4 times [2022-03-15 15:25:55,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:55,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990183859] [2022-03-15 15:25:55,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:55,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:55,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:55,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:55,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990183859] [2022-03-15 15:25:55,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990183859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:55,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:55,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:55,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592698704] [2022-03-15 15:25:55,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:55,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:25:55,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:55,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:25:55,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:25:55,832 INFO L87 Difference]: Start difference. First operand 5259 states and 24965 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:56,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:56,137 INFO L93 Difference]: Finished difference Result 11640 states and 51884 transitions. [2022-03-15 15:25:56,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:25:56,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:56,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:56,180 INFO L225 Difference]: With dead ends: 11640 [2022-03-15 15:25:56,180 INFO L226 Difference]: Without dead ends: 11115 [2022-03-15 15:25:56,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:56,181 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 152 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:56,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 226 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:25:56,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11115 states. [2022-03-15 15:25:56,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11115 to 5211. [2022-03-15 15:25:56,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.753358925143954) internal successors, (24765), 5210 states have internal predecessors, (24765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:56,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24765 transitions. [2022-03-15 15:25:56,400 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24765 transitions. Word has length 29 [2022-03-15 15:25:56,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:56,400 INFO L470 AbstractCegarLoop]: Abstraction has 5211 states and 24765 transitions. [2022-03-15 15:25:56,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:56,400 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24765 transitions. [2022-03-15 15:25:56,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:56,414 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:56,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:56,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 15:25:56,415 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:56,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:56,415 INFO L85 PathProgramCache]: Analyzing trace with hash -156809019, now seen corresponding path program 5 times [2022-03-15 15:25:56,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:56,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667427203] [2022-03-15 15:25:56,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:56,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:56,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:56,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:56,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667427203] [2022-03-15 15:25:56,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667427203] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:56,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:56,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:56,645 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603360421] [2022-03-15 15:25:56,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:56,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:25:56,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:56,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:25:56,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:25:56,646 INFO L87 Difference]: Start difference. First operand 5211 states and 24765 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:56,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:56,911 INFO L93 Difference]: Finished difference Result 11927 states and 53099 transitions. [2022-03-15 15:25:56,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:25:56,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:56,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:56,952 INFO L225 Difference]: With dead ends: 11927 [2022-03-15 15:25:56,953 INFO L226 Difference]: Without dead ends: 11385 [2022-03-15 15:25:56,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:56,953 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 189 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:56,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 215 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:25:56,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2022-03-15 15:25:57,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 5354. [2022-03-15 15:25:57,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 4.7233327106295535) internal successors, (25284), 5353 states have internal predecessors, (25284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:57,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 25284 transitions. [2022-03-15 15:25:57,168 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 25284 transitions. Word has length 29 [2022-03-15 15:25:57,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:57,169 INFO L470 AbstractCegarLoop]: Abstraction has 5354 states and 25284 transitions. [2022-03-15 15:25:57,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:57,169 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 25284 transitions. [2022-03-15 15:25:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:57,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:57,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:57,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 15:25:57,184 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:57,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2094821283, now seen corresponding path program 6 times [2022-03-15 15:25:57,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:57,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448938884] [2022-03-15 15:25:57,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:57,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:57,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:57,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:57,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448938884] [2022-03-15 15:25:57,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448938884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:57,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:57,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:57,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151689015] [2022-03-15 15:25:57,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:57,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:25:57,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:57,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:25:57,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:25:57,435 INFO L87 Difference]: Start difference. First operand 5354 states and 25284 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:57,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:57,733 INFO L93 Difference]: Finished difference Result 11862 states and 52730 transitions. [2022-03-15 15:25:57,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:25:57,734 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:57,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:57,780 INFO L225 Difference]: With dead ends: 11862 [2022-03-15 15:25:57,780 INFO L226 Difference]: Without dead ends: 11186 [2022-03-15 15:25:57,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:57,781 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 174 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:57,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 200 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:25:57,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11186 states. [2022-03-15 15:25:57,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11186 to 5155. [2022-03-15 15:25:57,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.759992239037641) internal successors, (24533), 5154 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:57,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24533 transitions. [2022-03-15 15:25:57,984 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24533 transitions. Word has length 29 [2022-03-15 15:25:57,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:57,985 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24533 transitions. [2022-03-15 15:25:57,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:57,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24533 transitions. [2022-03-15 15:25:57,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:57,996 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:57,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:57,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 15:25:57,997 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:57,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:57,997 INFO L85 PathProgramCache]: Analyzing trace with hash 356083395, now seen corresponding path program 7 times [2022-03-15 15:25:57,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:57,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465522071] [2022-03-15 15:25:57,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:57,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:58,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:58,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:58,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465522071] [2022-03-15 15:25:58,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465522071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:58,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:58,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:58,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624649519] [2022-03-15 15:25:58,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:58,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:25:58,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:58,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:25:58,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:25:58,183 INFO L87 Difference]: Start difference. First operand 5155 states and 24533 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:58,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:58,614 INFO L93 Difference]: Finished difference Result 11624 states and 51893 transitions. [2022-03-15 15:25:58,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:25:58,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:58,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:58,655 INFO L225 Difference]: With dead ends: 11624 [2022-03-15 15:25:58,656 INFO L226 Difference]: Without dead ends: 11209 [2022-03-15 15:25:58,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:58,662 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 184 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:58,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 200 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:25:58,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2022-03-15 15:25:58,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 5275. [2022-03-15 15:25:58,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.751042851725446) internal successors, (25057), 5274 states have internal predecessors, (25057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:58,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 25057 transitions. [2022-03-15 15:25:58,842 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 25057 transitions. Word has length 29 [2022-03-15 15:25:58,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:58,843 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 25057 transitions. [2022-03-15 15:25:58,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:58,843 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 25057 transitions. [2022-03-15 15:25:58,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:58,854 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:58,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:58,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 15:25:58,854 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:58,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash -629120635, now seen corresponding path program 8 times [2022-03-15 15:25:58,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:58,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658218549] [2022-03-15 15:25:58,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:58,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:59,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:59,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:59,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658218549] [2022-03-15 15:25:59,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658218549] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:59,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:59,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:59,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491921580] [2022-03-15 15:25:59,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:59,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:25:59,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:59,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:25:59,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:25:59,064 INFO L87 Difference]: Start difference. First operand 5275 states and 25057 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:59,283 INFO L93 Difference]: Finished difference Result 11751 states and 52372 transitions. [2022-03-15 15:25:59,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:25:59,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:59,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:59,317 INFO L225 Difference]: With dead ends: 11751 [2022-03-15 15:25:59,318 INFO L226 Difference]: Without dead ends: 11129 [2022-03-15 15:25:59,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:59,319 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 148 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:59,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 246 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:25:59,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11129 states. [2022-03-15 15:25:59,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11129 to 5195. [2022-03-15 15:25:59,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.754909510974201) internal successors, (24697), 5194 states have internal predecessors, (24697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24697 transitions. [2022-03-15 15:25:59,466 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24697 transitions. Word has length 29 [2022-03-15 15:25:59,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:25:59,466 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24697 transitions. [2022-03-15 15:25:59,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24697 transitions. [2022-03-15 15:25:59,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:25:59,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:25:59,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:25:59,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 15:25:59,477 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:25:59,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:25:59,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1531420063, now seen corresponding path program 9 times [2022-03-15 15:25:59,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:25:59,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702357488] [2022-03-15 15:25:59,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:25:59,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:25:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:25:59,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:25:59,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:25:59,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702357488] [2022-03-15 15:25:59,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702357488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:25:59,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:25:59,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:25:59,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140069434] [2022-03-15 15:25:59,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:25:59,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:25:59,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:25:59,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:25:59,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:25:59,653 INFO L87 Difference]: Start difference. First operand 5195 states and 24697 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:25:59,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:25:59,877 INFO L93 Difference]: Finished difference Result 11525 states and 51446 transitions. [2022-03-15 15:25:59,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:25:59,877 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:25:59,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:25:59,912 INFO L225 Difference]: With dead ends: 11525 [2022-03-15 15:25:59,912 INFO L226 Difference]: Without dead ends: 11110 [2022-03-15 15:25:59,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:25:59,913 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 167 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:25:59,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 220 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:25:59,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11110 states. [2022-03-15 15:26:00,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11110 to 5243. [2022-03-15 15:26:00,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.744944677603968) internal successors, (24873), 5242 states have internal predecessors, (24873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:00,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24873 transitions. [2022-03-15 15:26:00,081 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24873 transitions. Word has length 29 [2022-03-15 15:26:00,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:00,081 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 24873 transitions. [2022-03-15 15:26:00,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:00,081 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24873 transitions. [2022-03-15 15:26:00,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:00,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:00,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:00,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 15:26:00,093 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:00,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:00,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1761490371, now seen corresponding path program 10 times [2022-03-15 15:26:00,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:00,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604885084] [2022-03-15 15:26:00,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:00,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:00,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:00,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:00,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604885084] [2022-03-15 15:26:00,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604885084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:00,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:00,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:00,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216454225] [2022-03-15 15:26:00,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:00,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:00,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:00,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:00,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:00,261 INFO L87 Difference]: Start difference. First operand 5243 states and 24873 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:00,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:00,513 INFO L93 Difference]: Finished difference Result 11585 states and 51662 transitions. [2022-03-15 15:26:00,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:00,514 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:00,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:00,553 INFO L225 Difference]: With dead ends: 11585 [2022-03-15 15:26:00,553 INFO L226 Difference]: Without dead ends: 11062 [2022-03-15 15:26:00,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:00,556 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 176 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:00,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 210 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:00,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11062 states. [2022-03-15 15:26:00,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11062 to 5195. [2022-03-15 15:26:00,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.750288794763188) internal successors, (24673), 5194 states have internal predecessors, (24673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24673 transitions. [2022-03-15 15:26:00,754 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24673 transitions. Word has length 29 [2022-03-15 15:26:00,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:00,754 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24673 transitions. [2022-03-15 15:26:00,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24673 transitions. [2022-03-15 15:26:00,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:00,765 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:00,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:00,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 15:26:00,765 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:00,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:00,766 INFO L85 PathProgramCache]: Analyzing trace with hash -2143373307, now seen corresponding path program 11 times [2022-03-15 15:26:00,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:00,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804617872] [2022-03-15 15:26:00,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:00,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:00,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:00,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:00,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804617872] [2022-03-15 15:26:00,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804617872] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:00,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:00,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:00,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348675012] [2022-03-15 15:26:00,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:00,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:00,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:00,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:00,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:00,968 INFO L87 Difference]: Start difference. First operand 5195 states and 24673 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:01,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:01,204 INFO L93 Difference]: Finished difference Result 11841 states and 52767 transitions. [2022-03-15 15:26:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:01,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:01,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:01,246 INFO L225 Difference]: With dead ends: 11841 [2022-03-15 15:26:01,246 INFO L226 Difference]: Without dead ends: 11299 [2022-03-15 15:26:01,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:01,247 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:01,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 213 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:01,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11299 states. [2022-03-15 15:26:01,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11299 to 5305. [2022-03-15 15:26:01,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5305 states, 5304 states have (on average 4.728129713423831) internal successors, (25078), 5304 states have internal predecessors, (25078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:01,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5305 states to 5305 states and 25078 transitions. [2022-03-15 15:26:01,424 INFO L78 Accepts]: Start accepts. Automaton has 5305 states and 25078 transitions. Word has length 29 [2022-03-15 15:26:01,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:01,425 INFO L470 AbstractCegarLoop]: Abstraction has 5305 states and 25078 transitions. [2022-03-15 15:26:01,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:01,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5305 states and 25078 transitions. [2022-03-15 15:26:01,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:01,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:01,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:01,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 15:26:01,436 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:01,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:01,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1410641891, now seen corresponding path program 12 times [2022-03-15 15:26:01,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:01,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849254350] [2022-03-15 15:26:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:01,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:01,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:01,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:01,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849254350] [2022-03-15 15:26:01,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849254350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:01,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:01,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:01,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772208021] [2022-03-15 15:26:01,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:01,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:01,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:01,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:01,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:01,663 INFO L87 Difference]: Start difference. First operand 5305 states and 25078 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:02,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:02,003 INFO L93 Difference]: Finished difference Result 11774 states and 52394 transitions. [2022-03-15 15:26:02,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:02,004 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:02,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:02,049 INFO L225 Difference]: With dead ends: 11774 [2022-03-15 15:26:02,049 INFO L226 Difference]: Without dead ends: 11149 [2022-03-15 15:26:02,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:02,050 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 154 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:02,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 208 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:02,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11149 states. [2022-03-15 15:26:02,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11149 to 5155. [2022-03-15 15:26:02,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.756111757857974) internal successors, (24513), 5154 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:02,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24513 transitions. [2022-03-15 15:26:02,270 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24513 transitions. Word has length 29 [2022-03-15 15:26:02,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:02,271 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24513 transitions. [2022-03-15 15:26:02,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:02,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24513 transitions. [2022-03-15 15:26:02,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:02,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:02,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:02,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 15:26:02,283 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:02,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:02,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1617074529, now seen corresponding path program 13 times [2022-03-15 15:26:02,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:02,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236793373] [2022-03-15 15:26:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:02,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:02,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:02,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:02,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236793373] [2022-03-15 15:26:02,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236793373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:02,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:02,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:02,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109505318] [2022-03-15 15:26:02,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:02,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:02,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:02,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:02,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:02,473 INFO L87 Difference]: Start difference. First operand 5155 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:02,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:02,798 INFO L93 Difference]: Finished difference Result 11382 states and 50845 transitions. [2022-03-15 15:26:02,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:02,798 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:02,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:02,838 INFO L225 Difference]: With dead ends: 11382 [2022-03-15 15:26:02,838 INFO L226 Difference]: Without dead ends: 10967 [2022-03-15 15:26:02,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:02,839 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 158 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:02,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 240 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:02,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10967 states. [2022-03-15 15:26:03,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10967 to 5227. [2022-03-15 15:26:03,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 4.747990815154994) internal successors, (24813), 5226 states have internal predecessors, (24813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:03,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 24813 transitions. [2022-03-15 15:26:03,062 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 24813 transitions. Word has length 29 [2022-03-15 15:26:03,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:03,062 INFO L470 AbstractCegarLoop]: Abstraction has 5227 states and 24813 transitions. [2022-03-15 15:26:03,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:03,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 24813 transitions. [2022-03-15 15:26:03,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:03,075 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:03,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:03,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 15:26:03,075 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:03,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:03,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1846361539, now seen corresponding path program 14 times [2022-03-15 15:26:03,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:03,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135465972] [2022-03-15 15:26:03,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:03,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:03,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:03,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:03,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135465972] [2022-03-15 15:26:03,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135465972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:03,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:03,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:03,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85448190] [2022-03-15 15:26:03,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:03,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:03,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:03,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:03,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:03,282 INFO L87 Difference]: Start difference. First operand 5227 states and 24813 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:03,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:03,545 INFO L93 Difference]: Finished difference Result 11444 states and 51066 transitions. [2022-03-15 15:26:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:03,545 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:03,585 INFO L225 Difference]: With dead ends: 11444 [2022-03-15 15:26:03,586 INFO L226 Difference]: Without dead ends: 10919 [2022-03-15 15:26:03,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:03,586 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 149 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:03,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 226 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:03,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10919 states. [2022-03-15 15:26:03,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10919 to 5179. [2022-03-15 15:26:03,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.753379683275396) internal successors, (24613), 5178 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:03,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24613 transitions. [2022-03-15 15:26:03,807 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24613 transitions. Word has length 29 [2022-03-15 15:26:03,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:03,807 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24613 transitions. [2022-03-15 15:26:03,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:03,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24613 transitions. [2022-03-15 15:26:03,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:03,819 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:03,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:03,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 15:26:03,820 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:03,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:03,820 INFO L85 PathProgramCache]: Analyzing trace with hash 443114819, now seen corresponding path program 15 times [2022-03-15 15:26:03,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:03,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926996408] [2022-03-15 15:26:03,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:03,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:04,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:04,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:04,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926996408] [2022-03-15 15:26:04,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926996408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:04,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:04,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:04,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350686276] [2022-03-15 15:26:04,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:04,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:04,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:04,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:04,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:04,030 INFO L87 Difference]: Start difference. First operand 5179 states and 24613 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:04,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:04,258 INFO L93 Difference]: Finished difference Result 11380 states and 50816 transitions. [2022-03-15 15:26:04,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:04,258 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:04,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:04,295 INFO L225 Difference]: With dead ends: 11380 [2022-03-15 15:26:04,296 INFO L226 Difference]: Without dead ends: 10965 [2022-03-15 15:26:04,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:04,296 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 178 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:04,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 218 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:04,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10965 states. [2022-03-15 15:26:04,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10965 to 5227. [2022-03-15 15:26:04,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 4.743398392652124) internal successors, (24789), 5226 states have internal predecessors, (24789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:04,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 24789 transitions. [2022-03-15 15:26:04,479 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 24789 transitions. Word has length 29 [2022-03-15 15:26:04,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:04,479 INFO L470 AbstractCegarLoop]: Abstraction has 5227 states and 24789 transitions. [2022-03-15 15:26:04,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:04,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 24789 transitions. [2022-03-15 15:26:04,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:04,490 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:04,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:04,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 15:26:04,490 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:04,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:04,491 INFO L85 PathProgramCache]: Analyzing trace with hash 985304259, now seen corresponding path program 16 times [2022-03-15 15:26:04,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:04,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970074605] [2022-03-15 15:26:04,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:04,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:04,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:04,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:04,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970074605] [2022-03-15 15:26:04,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970074605] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:04,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:04,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:04,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942475438] [2022-03-15 15:26:04,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:04,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:04,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:04,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:04,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:04,708 INFO L87 Difference]: Start difference. First operand 5227 states and 24789 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:04,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:04,931 INFO L93 Difference]: Finished difference Result 11440 states and 51032 transitions. [2022-03-15 15:26:04,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:04,932 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:04,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:04,966 INFO L225 Difference]: With dead ends: 11440 [2022-03-15 15:26:04,966 INFO L226 Difference]: Without dead ends: 10917 [2022-03-15 15:26:04,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:04,967 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 159 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:04,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 227 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:04,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10917 states. [2022-03-15 15:26:05,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10917 to 5179. [2022-03-15 15:26:05,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.748744689069139) internal successors, (24589), 5178 states have internal predecessors, (24589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:05,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24589 transitions. [2022-03-15 15:26:05,116 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24589 transitions. Word has length 29 [2022-03-15 15:26:05,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:05,116 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24589 transitions. [2022-03-15 15:26:05,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:05,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24589 transitions. [2022-03-15 15:26:05,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:05,127 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:05,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:05,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 15:26:05,128 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:05,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:05,129 INFO L85 PathProgramCache]: Analyzing trace with hash 942391461, now seen corresponding path program 17 times [2022-03-15 15:26:05,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:05,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828310187] [2022-03-15 15:26:05,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:05,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:05,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:05,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:05,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828310187] [2022-03-15 15:26:05,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828310187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:05,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:05,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:05,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968929736] [2022-03-15 15:26:05,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:05,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:05,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:05,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:05,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:05,361 INFO L87 Difference]: Start difference. First operand 5179 states and 24589 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:05,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:05,592 INFO L93 Difference]: Finished difference Result 11534 states and 51477 transitions. [2022-03-15 15:26:05,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:05,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:05,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:05,630 INFO L225 Difference]: With dead ends: 11534 [2022-03-15 15:26:05,630 INFO L226 Difference]: Without dead ends: 11057 [2022-03-15 15:26:05,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:05,631 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:05,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 206 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:05,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11057 states. [2022-03-15 15:26:05,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11057 to 5257. [2022-03-15 15:26:05,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 4.7340182648401825) internal successors, (24882), 5256 states have internal predecessors, (24882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:05,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 24882 transitions. [2022-03-15 15:26:05,798 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 24882 transitions. Word has length 29 [2022-03-15 15:26:05,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:05,798 INFO L470 AbstractCegarLoop]: Abstraction has 5257 states and 24882 transitions. [2022-03-15 15:26:05,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:05,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 24882 transitions. [2022-03-15 15:26:05,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:05,810 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:05,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:05,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 15:26:05,810 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:05,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:05,811 INFO L85 PathProgramCache]: Analyzing trace with hash -449753085, now seen corresponding path program 18 times [2022-03-15 15:26:05,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:05,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834721495] [2022-03-15 15:26:05,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:05,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:06,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:06,011 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:06,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834721495] [2022-03-15 15:26:06,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834721495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:06,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:06,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:06,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103646429] [2022-03-15 15:26:06,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:06,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:06,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:06,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:06,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:06,012 INFO L87 Difference]: Start difference. First operand 5257 states and 24882 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:06,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:06,252 INFO L93 Difference]: Finished difference Result 11532 states and 51394 transitions. [2022-03-15 15:26:06,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:06,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:06,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:06,290 INFO L225 Difference]: With dead ends: 11532 [2022-03-15 15:26:06,290 INFO L226 Difference]: Without dead ends: 10955 [2022-03-15 15:26:06,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:06,291 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 173 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:06,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 194 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:06,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10955 states. [2022-03-15 15:26:06,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10955 to 5155. [2022-03-15 15:26:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.753783469150175) internal successors, (24501), 5154 states have internal predecessors, (24501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:06,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24501 transitions. [2022-03-15 15:26:06,456 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24501 transitions. Word has length 29 [2022-03-15 15:26:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:06,456 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24501 transitions. [2022-03-15 15:26:06,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:06,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24501 transitions. [2022-03-15 15:26:06,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:06,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:06,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:06,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 15:26:06,467 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:06,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:06,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1497614951, now seen corresponding path program 19 times [2022-03-15 15:26:06,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:06,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670562519] [2022-03-15 15:26:06,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:06,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:06,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:06,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:06,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670562519] [2022-03-15 15:26:06,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670562519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:06,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:06,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:06,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811473411] [2022-03-15 15:26:06,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:06,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:06,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:06,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:06,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:06,679 INFO L87 Difference]: Start difference. First operand 5155 states and 24501 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:06,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:06,919 INFO L93 Difference]: Finished difference Result 12078 states and 53790 transitions. [2022-03-15 15:26:06,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:06,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:06,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:06,955 INFO L225 Difference]: With dead ends: 12078 [2022-03-15 15:26:06,955 INFO L226 Difference]: Without dead ends: 11536 [2022-03-15 15:26:06,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:06,956 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 192 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:06,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 195 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:06,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11536 states. [2022-03-15 15:26:07,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11536 to 5385. [2022-03-15 15:26:07,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5385 states, 5384 states have (on average 4.720839524517087) internal successors, (25417), 5384 states have internal predecessors, (25417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:07,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5385 states to 5385 states and 25417 transitions. [2022-03-15 15:26:07,115 INFO L78 Accepts]: Start accepts. Automaton has 5385 states and 25417 transitions. Word has length 29 [2022-03-15 15:26:07,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:07,115 INFO L470 AbstractCegarLoop]: Abstraction has 5385 states and 25417 transitions. [2022-03-15 15:26:07,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:07,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5385 states and 25417 transitions. [2022-03-15 15:26:07,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:07,126 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:07,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:07,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 15:26:07,126 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:07,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:07,126 INFO L85 PathProgramCache]: Analyzing trace with hash -545722043, now seen corresponding path program 20 times [2022-03-15 15:26:07,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:07,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198515824] [2022-03-15 15:26:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:07,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:07,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:07,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:07,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198515824] [2022-03-15 15:26:07,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198515824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:07,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:07,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:07,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019358907] [2022-03-15 15:26:07,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:07,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:07,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:07,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:07,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:07,341 INFO L87 Difference]: Start difference. First operand 5385 states and 25417 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:07,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:07,574 INFO L93 Difference]: Finished difference Result 12013 states and 53421 transitions. [2022-03-15 15:26:07,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:07,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:07,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:07,612 INFO L225 Difference]: With dead ends: 12013 [2022-03-15 15:26:07,612 INFO L226 Difference]: Without dead ends: 11393 [2022-03-15 15:26:07,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:07,612 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 186 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:07,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 221 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:07,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11393 states. [2022-03-15 15:26:07,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11393 to 5242. [2022-03-15 15:26:07,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 5241 states have (on average 4.737073077656936) internal successors, (24827), 5241 states have internal predecessors, (24827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:07,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 24827 transitions. [2022-03-15 15:26:07,780 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 24827 transitions. Word has length 29 [2022-03-15 15:26:07,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:07,780 INFO L470 AbstractCegarLoop]: Abstraction has 5242 states and 24827 transitions. [2022-03-15 15:26:07,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:07,781 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 24827 transitions. [2022-03-15 15:26:07,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:07,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:07,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:07,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 15:26:07,792 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:07,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:07,792 INFO L85 PathProgramCache]: Analyzing trace with hash -618464699, now seen corresponding path program 21 times [2022-03-15 15:26:07,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:07,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985114370] [2022-03-15 15:26:07,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:07,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:07,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:07,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985114370] [2022-03-15 15:26:07,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985114370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:07,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:07,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:07,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999515718] [2022-03-15 15:26:07,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:07,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:07,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:07,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:07,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:07,982 INFO L87 Difference]: Start difference. First operand 5242 states and 24827 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:08,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:08,182 INFO L93 Difference]: Finished difference Result 12043 states and 53599 transitions. [2022-03-15 15:26:08,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:08,182 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:08,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:08,221 INFO L225 Difference]: With dead ends: 12043 [2022-03-15 15:26:08,221 INFO L226 Difference]: Without dead ends: 11501 [2022-03-15 15:26:08,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:08,222 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 193 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:08,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 195 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:08,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11501 states. [2022-03-15 15:26:08,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11501 to 5352. [2022-03-15 15:26:08,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 4.71538030274715) internal successors, (25232), 5351 states have internal predecessors, (25232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:08,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 25232 transitions. [2022-03-15 15:26:08,387 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 25232 transitions. Word has length 29 [2022-03-15 15:26:08,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:08,387 INFO L470 AbstractCegarLoop]: Abstraction has 5352 states and 25232 transitions. [2022-03-15 15:26:08,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:08,387 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 25232 transitions. [2022-03-15 15:26:08,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:08,397 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:08,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:08,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 15:26:08,398 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:08,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:08,398 INFO L85 PathProgramCache]: Analyzing trace with hash -62676411, now seen corresponding path program 22 times [2022-03-15 15:26:08,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:08,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194840137] [2022-03-15 15:26:08,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:08,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:08,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:08,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:08,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194840137] [2022-03-15 15:26:08,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194840137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:08,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:08,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:08,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214615375] [2022-03-15 15:26:08,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:08,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:08,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:08,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:08,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:08,674 INFO L87 Difference]: Start difference. First operand 5352 states and 25232 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:09,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:09,069 INFO L93 Difference]: Finished difference Result 11976 states and 53226 transitions. [2022-03-15 15:26:09,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:09,069 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:09,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:09,107 INFO L225 Difference]: With dead ends: 11976 [2022-03-15 15:26:09,107 INFO L226 Difference]: Without dead ends: 11391 [2022-03-15 15:26:09,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:09,108 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 159 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:09,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 245 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:26:09,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11391 states. [2022-03-15 15:26:09,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11391 to 5242. [2022-03-15 15:26:09,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 5241 states have (on average 4.726578897157031) internal successors, (24772), 5241 states have internal predecessors, (24772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:09,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 24772 transitions. [2022-03-15 15:26:09,281 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 24772 transitions. Word has length 29 [2022-03-15 15:26:09,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:09,282 INFO L470 AbstractCegarLoop]: Abstraction has 5242 states and 24772 transitions. [2022-03-15 15:26:09,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:09,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 24772 transitions. [2022-03-15 15:26:09,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:09,292 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:09,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:09,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 15:26:09,292 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:09,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:09,293 INFO L85 PathProgramCache]: Analyzing trace with hash 363882915, now seen corresponding path program 23 times [2022-03-15 15:26:09,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:09,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260849949] [2022-03-15 15:26:09,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:09,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:09,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:09,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:09,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260849949] [2022-03-15 15:26:09,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260849949] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:09,519 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:09,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:09,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648395686] [2022-03-15 15:26:09,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:09,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:09,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:09,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:09,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:09,520 INFO L87 Difference]: Start difference. First operand 5242 states and 24772 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:09,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:09,768 INFO L93 Difference]: Finished difference Result 11881 states and 52884 transitions. [2022-03-15 15:26:09,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:09,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:09,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:09,814 INFO L225 Difference]: With dead ends: 11881 [2022-03-15 15:26:09,814 INFO L226 Difference]: Without dead ends: 11404 [2022-03-15 15:26:09,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:09,814 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 171 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:09,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 229 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:09,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11404 states. [2022-03-15 15:26:09,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11404 to 5320. [2022-03-15 15:26:09,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 5319 states have (on average 4.712351945854484) internal successors, (25065), 5319 states have internal predecessors, (25065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:10,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 25065 transitions. [2022-03-15 15:26:10,008 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 25065 transitions. Word has length 29 [2022-03-15 15:26:10,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:10,008 INFO L470 AbstractCegarLoop]: Abstraction has 5320 states and 25065 transitions. [2022-03-15 15:26:10,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:10,008 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 25065 transitions. [2022-03-15 15:26:10,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:10,019 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:10,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:10,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 15:26:10,020 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:10,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash 157074949, now seen corresponding path program 24 times [2022-03-15 15:26:10,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:10,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874819296] [2022-03-15 15:26:10,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:10,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:10,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:10,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874819296] [2022-03-15 15:26:10,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874819296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:10,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:10,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:10,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576650517] [2022-03-15 15:26:10,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:10,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:10,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:10,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:10,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:10,205 INFO L87 Difference]: Start difference. First operand 5320 states and 25065 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:10,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:10,451 INFO L93 Difference]: Finished difference Result 11879 states and 52801 transitions. [2022-03-15 15:26:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:10,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:10,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:10,494 INFO L225 Difference]: With dead ends: 11879 [2022-03-15 15:26:10,494 INFO L226 Difference]: Without dead ends: 11203 [2022-03-15 15:26:10,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:10,499 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 157 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:10,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 219 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:10,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11203 states. [2022-03-15 15:26:10,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11203 to 5119. [2022-03-15 15:26:10,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.761430246189918) internal successors, (24369), 5118 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:10,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24369 transitions. [2022-03-15 15:26:10,746 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24369 transitions. Word has length 29 [2022-03-15 15:26:10,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:10,746 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24369 transitions. [2022-03-15 15:26:10,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:10,746 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24369 transitions. [2022-03-15 15:26:10,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:10,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:10,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:10,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 15:26:10,756 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:10,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:10,758 INFO L85 PathProgramCache]: Analyzing trace with hash -971648123, now seen corresponding path program 25 times [2022-03-15 15:26:10,758 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:10,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261306513] [2022-03-15 15:26:10,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:10,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:10,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:10,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:10,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261306513] [2022-03-15 15:26:10,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261306513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:10,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:10,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:10,924 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307879615] [2022-03-15 15:26:10,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:10,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:10,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:10,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:10,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:10,924 INFO L87 Difference]: Start difference. First operand 5119 states and 24369 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:11,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:11,122 INFO L93 Difference]: Finished difference Result 11480 states and 51182 transitions. [2022-03-15 15:26:11,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:11,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:11,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:11,163 INFO L225 Difference]: With dead ends: 11480 [2022-03-15 15:26:11,163 INFO L226 Difference]: Without dead ends: 11065 [2022-03-15 15:26:11,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:11,164 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 172 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:11,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 224 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:11,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11065 states. [2022-03-15 15:26:11,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11065 to 5279. [2022-03-15 15:26:11,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.751989389920424) internal successors, (25081), 5278 states have internal predecessors, (25081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:11,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 25081 transitions. [2022-03-15 15:26:11,347 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 25081 transitions. Word has length 29 [2022-03-15 15:26:11,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:11,347 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 25081 transitions. [2022-03-15 15:26:11,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:11,348 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 25081 transitions. [2022-03-15 15:26:11,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:11,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:11,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:11,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 15:26:11,359 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:11,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:11,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1956852153, now seen corresponding path program 26 times [2022-03-15 15:26:11,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:11,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107659616] [2022-03-15 15:26:11,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:11,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:11,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:11,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107659616] [2022-03-15 15:26:11,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107659616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:11,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:11,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:11,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788339025] [2022-03-15 15:26:11,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:11,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:11,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:11,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:11,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:11,550 INFO L87 Difference]: Start difference. First operand 5279 states and 25081 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:11,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:11,769 INFO L93 Difference]: Finished difference Result 11607 states and 51661 transitions. [2022-03-15 15:26:11,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:11,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:11,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:11,807 INFO L225 Difference]: With dead ends: 11607 [2022-03-15 15:26:11,807 INFO L226 Difference]: Without dead ends: 10985 [2022-03-15 15:26:11,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:11,807 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 189 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:11,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 205 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:11,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10985 states. [2022-03-15 15:26:11,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10985 to 5199. [2022-03-15 15:26:11,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.755867641400538) internal successors, (24721), 5198 states have internal predecessors, (24721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24721 transitions. [2022-03-15 15:26:11,976 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24721 transitions. Word has length 29 [2022-03-15 15:26:11,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:11,976 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24721 transitions. [2022-03-15 15:26:11,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:11,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24721 transitions. [2022-03-15 15:26:11,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:11,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:11,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:11,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 15:26:11,988 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:11,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:11,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1191449979, now seen corresponding path program 27 times [2022-03-15 15:26:11,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:11,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712539830] [2022-03-15 15:26:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:11,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:12,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:12,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:12,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712539830] [2022-03-15 15:26:12,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712539830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:12,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:12,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:12,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599787691] [2022-03-15 15:26:12,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:12,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:12,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:12,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:12,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:12,197 INFO L87 Difference]: Start difference. First operand 5199 states and 24721 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:12,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:12,433 INFO L93 Difference]: Finished difference Result 11383 states and 50740 transitions. [2022-03-15 15:26:12,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:12,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:12,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:12,473 INFO L225 Difference]: With dead ends: 11383 [2022-03-15 15:26:12,473 INFO L226 Difference]: Without dead ends: 10968 [2022-03-15 15:26:12,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:12,474 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 160 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:12,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 226 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:12,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10968 states. [2022-03-15 15:26:12,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10968 to 5247. [2022-03-15 15:26:12,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.745901639344262) internal successors, (24897), 5246 states have internal predecessors, (24897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:12,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24897 transitions. [2022-03-15 15:26:12,645 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24897 transitions. Word has length 29 [2022-03-15 15:26:12,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:12,645 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 24897 transitions. [2022-03-15 15:26:12,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:12,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24897 transitions. [2022-03-15 15:26:12,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:12,656 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:12,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:12,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 15:26:12,656 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:12,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:12,657 INFO L85 PathProgramCache]: Analyzing trace with hash -962162969, now seen corresponding path program 28 times [2022-03-15 15:26:12,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:12,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754028473] [2022-03-15 15:26:12,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:12,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:12,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:12,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:12,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754028473] [2022-03-15 15:26:12,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754028473] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:12,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:12,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:12,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971401996] [2022-03-15 15:26:12,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:12,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:12,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:12,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:12,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:12,865 INFO L87 Difference]: Start difference. First operand 5247 states and 24897 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:13,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:13,105 INFO L93 Difference]: Finished difference Result 11445 states and 50961 transitions. [2022-03-15 15:26:13,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:13,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:13,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:13,140 INFO L225 Difference]: With dead ends: 11445 [2022-03-15 15:26:13,141 INFO L226 Difference]: Without dead ends: 10920 [2022-03-15 15:26:13,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:13,141 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 146 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:13,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 226 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:13,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10920 states. [2022-03-15 15:26:13,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10920 to 5199. [2022-03-15 15:26:13,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.751250480954213) internal successors, (24697), 5198 states have internal predecessors, (24697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:13,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24697 transitions. [2022-03-15 15:26:13,338 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24697 transitions. Word has length 29 [2022-03-15 15:26:13,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:13,338 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24697 transitions. [2022-03-15 15:26:13,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:13,338 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24697 transitions. [2022-03-15 15:26:13,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:13,350 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:13,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:13,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 15:26:13,350 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:13,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:13,351 INFO L85 PathProgramCache]: Analyzing trace with hash 772337961, now seen corresponding path program 29 times [2022-03-15 15:26:13,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:13,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097319721] [2022-03-15 15:26:13,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:13,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:13,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:13,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:13,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097319721] [2022-03-15 15:26:13,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097319721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:13,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:13,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:13,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622158080] [2022-03-15 15:26:13,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:13,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:13,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:13,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:13,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:13,549 INFO L87 Difference]: Start difference. First operand 5199 states and 24697 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:13,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:13,812 INFO L93 Difference]: Finished difference Result 11732 states and 52176 transitions. [2022-03-15 15:26:13,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:13,812 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:13,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:13,848 INFO L225 Difference]: With dead ends: 11732 [2022-03-15 15:26:13,848 INFO L226 Difference]: Without dead ends: 11190 [2022-03-15 15:26:13,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:13,849 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 167 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:13,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 247 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:13,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11190 states. [2022-03-15 15:26:13,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11190 to 5342. [2022-03-15 15:26:13,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5341 states have (on average 4.72121325594458) internal successors, (25216), 5341 states have internal predecessors, (25216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:14,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 25216 transitions. [2022-03-15 15:26:14,013 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 25216 transitions. Word has length 29 [2022-03-15 15:26:14,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:14,013 INFO L470 AbstractCegarLoop]: Abstraction has 5342 states and 25216 transitions. [2022-03-15 15:26:14,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:14,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 25216 transitions. [2022-03-15 15:26:14,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:14,024 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:14,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:14,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 15:26:14,024 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:14,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:14,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1270999033, now seen corresponding path program 30 times [2022-03-15 15:26:14,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:14,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524329601] [2022-03-15 15:26:14,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:14,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:14,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:14,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:14,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524329601] [2022-03-15 15:26:14,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524329601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:14,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:14,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:14,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784263521] [2022-03-15 15:26:14,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:14,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:14,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:14,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:14,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:14,173 INFO L87 Difference]: Start difference. First operand 5342 states and 25216 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:14,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:14,367 INFO L93 Difference]: Finished difference Result 11667 states and 51807 transitions. [2022-03-15 15:26:14,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:14,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:14,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:14,403 INFO L225 Difference]: With dead ends: 11667 [2022-03-15 15:26:14,404 INFO L226 Difference]: Without dead ends: 10991 [2022-03-15 15:26:14,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:14,404 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 186 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:14,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 218 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:14,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10991 states. [2022-03-15 15:26:14,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10991 to 5143. [2022-03-15 15:26:14,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.758654220147802) internal successors, (24469), 5142 states have internal predecessors, (24469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:14,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24469 transitions. [2022-03-15 15:26:14,570 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24469 transitions. Word has length 29 [2022-03-15 15:26:14,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:14,570 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24469 transitions. [2022-03-15 15:26:14,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:14,570 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24469 transitions. [2022-03-15 15:26:14,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:14,581 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:14,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:14,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 15:26:14,581 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:14,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:14,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1780180987, now seen corresponding path program 31 times [2022-03-15 15:26:14,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:14,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670048399] [2022-03-15 15:26:14,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:14,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:14,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:14,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:14,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670048399] [2022-03-15 15:26:14,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670048399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:14,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:14,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:14,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258781935] [2022-03-15 15:26:14,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:14,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:14,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:14,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:14,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:14,774 INFO L87 Difference]: Start difference. First operand 5143 states and 24469 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:14,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:14,962 INFO L93 Difference]: Finished difference Result 11315 states and 50439 transitions. [2022-03-15 15:26:14,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:14,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:14,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:15,000 INFO L225 Difference]: With dead ends: 11315 [2022-03-15 15:26:15,000 INFO L226 Difference]: Without dead ends: 10900 [2022-03-15 15:26:15,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:15,000 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 165 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:15,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 222 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:15,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10900 states. [2022-03-15 15:26:15,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10900 to 5255. [2022-03-15 15:26:15,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.74857251617815) internal successors, (24949), 5254 states have internal predecessors, (24949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:15,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24949 transitions. [2022-03-15 15:26:15,175 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24949 transitions. Word has length 29 [2022-03-15 15:26:15,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:15,175 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 24949 transitions. [2022-03-15 15:26:15,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:15,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24949 transitions. [2022-03-15 15:26:15,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:15,186 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:15,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:15,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 15:26:15,186 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:15,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1529582279, now seen corresponding path program 32 times [2022-03-15 15:26:15,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:15,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599868810] [2022-03-15 15:26:15,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:15,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:15,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:15,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:15,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599868810] [2022-03-15 15:26:15,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599868810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:15,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:15,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:15,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201742931] [2022-03-15 15:26:15,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:15,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:15,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:15,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:15,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:15,373 INFO L87 Difference]: Start difference. First operand 5255 states and 24949 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:15,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:15,595 INFO L93 Difference]: Finished difference Result 11442 states and 50918 transitions. [2022-03-15 15:26:15,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:15,596 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:15,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:15,630 INFO L225 Difference]: With dead ends: 11442 [2022-03-15 15:26:15,630 INFO L226 Difference]: Without dead ends: 10820 [2022-03-15 15:26:15,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:15,631 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 158 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:15,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 233 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:15,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10820 states. [2022-03-15 15:26:15,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10820 to 5175. [2022-03-15 15:26:15,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.753962118283726) internal successors, (24597), 5174 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:15,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24597 transitions. [2022-03-15 15:26:15,786 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24597 transitions. Word has length 29 [2022-03-15 15:26:15,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:15,787 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24597 transitions. [2022-03-15 15:26:15,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:15,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24597 transitions. [2022-03-15 15:26:15,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:15,797 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:15,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:15,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 15:26:15,797 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:15,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:15,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1695392989, now seen corresponding path program 33 times [2022-03-15 15:26:15,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:15,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066694247] [2022-03-15 15:26:15,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:15,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:16,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:16,011 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:16,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066694247] [2022-03-15 15:26:16,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066694247] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:16,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:16,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:16,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24784712] [2022-03-15 15:26:16,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:16,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:16,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:16,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:16,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:16,012 INFO L87 Difference]: Start difference. First operand 5175 states and 24597 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:16,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:16,236 INFO L93 Difference]: Finished difference Result 11140 states and 49656 transitions. [2022-03-15 15:26:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:16,237 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:16,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:16,271 INFO L225 Difference]: With dead ends: 11140 [2022-03-15 15:26:16,271 INFO L226 Difference]: Without dead ends: 10725 [2022-03-15 15:26:16,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:16,271 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 173 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:16,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 210 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:16,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10725 states. [2022-03-15 15:26:16,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10725 to 5207. [2022-03-15 15:26:16,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.746254321936227) internal successors, (24709), 5206 states have internal predecessors, (24709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:16,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24709 transitions. [2022-03-15 15:26:16,419 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24709 transitions. Word has length 29 [2022-03-15 15:26:16,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:16,419 INFO L470 AbstractCegarLoop]: Abstraction has 5207 states and 24709 transitions. [2022-03-15 15:26:16,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:16,419 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24709 transitions. [2022-03-15 15:26:16,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:16,429 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:16,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:16,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 15:26:16,429 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:16,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:16,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1027927075, now seen corresponding path program 34 times [2022-03-15 15:26:16,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:16,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625828988] [2022-03-15 15:26:16,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:16,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:16,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:16,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625828988] [2022-03-15 15:26:16,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625828988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:16,625 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:16,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:16,625 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394247665] [2022-03-15 15:26:16,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:16,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:16,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:16,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:16,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:16,626 INFO L87 Difference]: Start difference. First operand 5207 states and 24709 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:16,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:16,814 INFO L93 Difference]: Finished difference Result 11140 states and 49624 transitions. [2022-03-15 15:26:16,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:16,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:16,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:16,847 INFO L225 Difference]: With dead ends: 11140 [2022-03-15 15:26:16,847 INFO L226 Difference]: Without dead ends: 10693 [2022-03-15 15:26:16,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:16,847 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 163 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:16,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 234 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:16,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10693 states. [2022-03-15 15:26:16,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10693 to 5175. [2022-03-15 15:26:16,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.750869733281793) internal successors, (24581), 5174 states have internal predecessors, (24581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:16,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24581 transitions. [2022-03-15 15:26:16,983 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24581 transitions. Word has length 29 [2022-03-15 15:26:16,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:16,984 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24581 transitions. [2022-03-15 15:26:16,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:16,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24581 transitions. [2022-03-15 15:26:16,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:16,993 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:16,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:16,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 15:26:16,994 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:16,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:16,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1912012931, now seen corresponding path program 35 times [2022-03-15 15:26:16,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:16,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433276423] [2022-03-15 15:26:16,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:16,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:17,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:17,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433276423] [2022-03-15 15:26:17,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433276423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:17,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:17,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:17,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605190450] [2022-03-15 15:26:17,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:17,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:17,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:17,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:17,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:17,212 INFO L87 Difference]: Start difference. First operand 5175 states and 24581 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:17,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:17,416 INFO L93 Difference]: Finished difference Result 11442 states and 50918 transitions. [2022-03-15 15:26:17,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:17,416 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:17,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:17,451 INFO L225 Difference]: With dead ends: 11442 [2022-03-15 15:26:17,451 INFO L226 Difference]: Without dead ends: 10900 [2022-03-15 15:26:17,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:17,452 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:17,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 230 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:17,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10900 states. [2022-03-15 15:26:17,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10900 to 5255. [2022-03-15 15:26:17,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.7333460220784165) internal successors, (24869), 5254 states have internal predecessors, (24869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:17,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24869 transitions. [2022-03-15 15:26:17,604 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24869 transitions. Word has length 29 [2022-03-15 15:26:17,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:17,604 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 24869 transitions. [2022-03-15 15:26:17,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:17,604 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24869 transitions. [2022-03-15 15:26:17,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:17,639 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:17,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:17,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 15:26:17,640 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:17,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:17,640 INFO L85 PathProgramCache]: Analyzing trace with hash -2118820897, now seen corresponding path program 36 times [2022-03-15 15:26:17,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:17,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337736717] [2022-03-15 15:26:17,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:17,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:17,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:17,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:17,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337736717] [2022-03-15 15:26:17,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337736717] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:17,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:17,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:17,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344038644] [2022-03-15 15:26:17,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:17,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:17,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:17,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:17,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:17,795 INFO L87 Difference]: Start difference. First operand 5255 states and 24869 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:17,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:17,996 INFO L93 Difference]: Finished difference Result 11315 states and 50311 transitions. [2022-03-15 15:26:17,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:17,996 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:17,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:18,034 INFO L225 Difference]: With dead ends: 11315 [2022-03-15 15:26:18,034 INFO L226 Difference]: Without dead ends: 10788 [2022-03-15 15:26:18,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:18,034 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 163 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:18,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 230 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:18,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10788 states. [2022-03-15 15:26:18,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10788 to 5143. [2022-03-15 15:26:18,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.755542590431738) internal successors, (24453), 5142 states have internal predecessors, (24453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:18,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24453 transitions. [2022-03-15 15:26:18,417 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24453 transitions. Word has length 29 [2022-03-15 15:26:18,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:18,417 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24453 transitions. [2022-03-15 15:26:18,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:18,418 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24453 transitions. [2022-03-15 15:26:18,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:18,427 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:18,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:18,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 15:26:18,427 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:18,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:18,428 INFO L85 PathProgramCache]: Analyzing trace with hash -509238749, now seen corresponding path program 37 times [2022-03-15 15:26:18,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:18,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221116907] [2022-03-15 15:26:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:18,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:18,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:18,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:18,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221116907] [2022-03-15 15:26:18,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221116907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:18,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:18,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:18,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355982763] [2022-03-15 15:26:18,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:18,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:18,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:18,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:18,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:18,620 INFO L87 Difference]: Start difference. First operand 5143 states and 24453 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:18,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:18,883 INFO L93 Difference]: Finished difference Result 11073 states and 49395 transitions. [2022-03-15 15:26:18,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:18,883 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:18,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:18,921 INFO L225 Difference]: With dead ends: 11073 [2022-03-15 15:26:18,921 INFO L226 Difference]: Without dead ends: 10658 [2022-03-15 15:26:18,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:18,922 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 170 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:18,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 209 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2022-03-15 15:26:19,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 5207. [2022-03-15 15:26:19,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.746254321936227) internal successors, (24709), 5206 states have internal predecessors, (24709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:19,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24709 transitions. [2022-03-15 15:26:19,090 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24709 transitions. Word has length 29 [2022-03-15 15:26:19,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:19,090 INFO L470 AbstractCegarLoop]: Abstraction has 5207 states and 24709 transitions. [2022-03-15 15:26:19,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:19,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24709 transitions. [2022-03-15 15:26:19,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:19,101 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:19,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:19,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 15:26:19,102 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:19,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:19,102 INFO L85 PathProgramCache]: Analyzing trace with hash -279951739, now seen corresponding path program 38 times [2022-03-15 15:26:19,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:19,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575705566] [2022-03-15 15:26:19,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:19,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:19,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:19,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:19,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575705566] [2022-03-15 15:26:19,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575705566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:19,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:19,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:19,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947813569] [2022-03-15 15:26:19,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:19,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:19,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:19,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:19,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:19,285 INFO L87 Difference]: Start difference. First operand 5207 states and 24709 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:19,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:19,514 INFO L93 Difference]: Finished difference Result 11135 states and 49616 transitions. [2022-03-15 15:26:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:19,515 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:19,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:19,544 INFO L225 Difference]: With dead ends: 11135 [2022-03-15 15:26:19,544 INFO L226 Difference]: Without dead ends: 10610 [2022-03-15 15:26:19,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:19,551 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 145 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:19,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 234 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:19,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2022-03-15 15:26:19,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 5159. [2022-03-15 15:26:19,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 4.7531989143078714) internal successors, (24517), 5158 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:19,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 24517 transitions. [2022-03-15 15:26:19,722 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 24517 transitions. Word has length 29 [2022-03-15 15:26:19,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:19,723 INFO L470 AbstractCegarLoop]: Abstraction has 5159 states and 24517 transitions. [2022-03-15 15:26:19,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:19,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 24517 transitions. [2022-03-15 15:26:19,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:19,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:19,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:19,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 15:26:19,734 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:19,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:19,734 INFO L85 PathProgramCache]: Analyzing trace with hash -990140795, now seen corresponding path program 39 times [2022-03-15 15:26:19,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:19,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683295639] [2022-03-15 15:26:19,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:19,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:19,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:19,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:19,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683295639] [2022-03-15 15:26:19,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683295639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:19,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:19,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:19,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052878516] [2022-03-15 15:26:19,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:19,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:19,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:19,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:19,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:19,900 INFO L87 Difference]: Start difference. First operand 5159 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:20,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:20,168 INFO L93 Difference]: Finished difference Result 10995 states and 49030 transitions. [2022-03-15 15:26:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:20,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:20,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:20,217 INFO L225 Difference]: With dead ends: 10995 [2022-03-15 15:26:20,217 INFO L226 Difference]: Without dead ends: 10580 [2022-03-15 15:26:20,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:20,218 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 164 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:20,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 233 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:20,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10580 states. [2022-03-15 15:26:20,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10580 to 5191. [2022-03-15 15:26:20,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.745472061657033) internal successors, (24629), 5190 states have internal predecessors, (24629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24629 transitions. [2022-03-15 15:26:20,415 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24629 transitions. Word has length 29 [2022-03-15 15:26:20,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:20,416 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24629 transitions. [2022-03-15 15:26:20,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:20,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24629 transitions. [2022-03-15 15:26:20,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:20,427 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:20,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:20,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 15:26:20,427 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:20,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:20,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1804113187, now seen corresponding path program 40 times [2022-03-15 15:26:20,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:20,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949881738] [2022-03-15 15:26:20,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:20,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:20,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:20,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:20,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949881738] [2022-03-15 15:26:20,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949881738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:20,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:20,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:20,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399515285] [2022-03-15 15:26:20,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:20,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:20,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:20,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:20,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:20,604 INFO L87 Difference]: Start difference. First operand 5191 states and 24629 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:20,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:20,880 INFO L93 Difference]: Finished difference Result 10995 states and 48998 transitions. [2022-03-15 15:26:20,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:20,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:20,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:20,916 INFO L225 Difference]: With dead ends: 10995 [2022-03-15 15:26:20,916 INFO L226 Difference]: Without dead ends: 10548 [2022-03-15 15:26:20,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:20,916 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 149 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:20,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 254 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:20,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-03-15 15:26:21,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 5159. [2022-03-15 15:26:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 4.750096936797208) internal successors, (24501), 5158 states have internal predecessors, (24501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:21,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 24501 transitions. [2022-03-15 15:26:21,088 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 24501 transitions. Word has length 29 [2022-03-15 15:26:21,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:21,089 INFO L470 AbstractCegarLoop]: Abstraction has 5159 states and 24501 transitions. [2022-03-15 15:26:21,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:21,089 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 24501 transitions. [2022-03-15 15:26:21,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:21,100 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:21,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:21,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 15:26:21,100 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:21,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:21,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1668417699, now seen corresponding path program 41 times [2022-03-15 15:26:21,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:21,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812966145] [2022-03-15 15:26:21,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:21,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:21,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:21,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812966145] [2022-03-15 15:26:21,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812966145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:21,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:21,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:21,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241127236] [2022-03-15 15:26:21,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:21,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:21,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:21,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:21,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:21,289 INFO L87 Difference]: Start difference. First operand 5159 states and 24501 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:21,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:21,497 INFO L93 Difference]: Finished difference Result 11135 states and 49632 transitions. [2022-03-15 15:26:21,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:21,498 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:21,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:21,530 INFO L225 Difference]: With dead ends: 11135 [2022-03-15 15:26:21,530 INFO L226 Difference]: Without dead ends: 10658 [2022-03-15 15:26:21,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:21,531 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:21,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 213 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:21,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2022-03-15 15:26:21,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 5207. [2022-03-15 15:26:21,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.74010756819055) internal successors, (24677), 5206 states have internal predecessors, (24677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:21,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24677 transitions. [2022-03-15 15:26:21,676 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24677 transitions. Word has length 29 [2022-03-15 15:26:21,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:21,676 INFO L470 AbstractCegarLoop]: Abstraction has 5207 states and 24677 transitions. [2022-03-15 15:26:21,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:21,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24677 transitions. [2022-03-15 15:26:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:21,686 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:21,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:21,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 15:26:21,687 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:21,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:21,687 INFO L85 PathProgramCache]: Analyzing trace with hash -587355073, now seen corresponding path program 42 times [2022-03-15 15:26:21,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:21,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906586534] [2022-03-15 15:26:21,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:21,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:21,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:21,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:21,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906586534] [2022-03-15 15:26:21,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906586534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:21,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:21,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:21,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159429264] [2022-03-15 15:26:21,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:21,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:21,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:21,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:21,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:21,871 INFO L87 Difference]: Start difference. First operand 5207 states and 24677 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:22,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:22,073 INFO L93 Difference]: Finished difference Result 11073 states and 49315 transitions. [2022-03-15 15:26:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:22,074 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:22,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:22,108 INFO L225 Difference]: With dead ends: 11073 [2022-03-15 15:26:22,108 INFO L226 Difference]: Without dead ends: 10594 [2022-03-15 15:26:22,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:22,108 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:22,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 207 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:22,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10594 states. [2022-03-15 15:26:22,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10594 to 5143. [2022-03-15 15:26:22,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.753986775573707) internal successors, (24445), 5142 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24445 transitions. [2022-03-15 15:26:22,253 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24445 transitions. Word has length 29 [2022-03-15 15:26:22,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:22,253 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24445 transitions. [2022-03-15 15:26:22,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:22,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24445 transitions. [2022-03-15 15:26:22,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:22,264 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:22,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:22,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-15 15:26:22,264 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:22,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:22,264 INFO L85 PathProgramCache]: Analyzing trace with hash -666152067, now seen corresponding path program 43 times [2022-03-15 15:26:22,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:22,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408925743] [2022-03-15 15:26:22,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:22,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:22,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:22,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:22,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408925743] [2022-03-15 15:26:22,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408925743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:22,419 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:22,419 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:22,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943427050] [2022-03-15 15:26:22,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:22,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:22,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:22,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:22,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:22,420 INFO L87 Difference]: Start difference. First operand 5143 states and 24445 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:22,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:22,610 INFO L93 Difference]: Finished difference Result 11732 states and 52192 transitions. [2022-03-15 15:26:22,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:22,610 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:22,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:22,647 INFO L225 Difference]: With dead ends: 11732 [2022-03-15 15:26:22,647 INFO L226 Difference]: Without dead ends: 11190 [2022-03-15 15:26:22,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:22,648 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 177 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:22,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 222 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:22,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11190 states. [2022-03-15 15:26:22,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11190 to 5342. [2022-03-15 15:26:22,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5341 states have (on average 4.7242089496349) internal successors, (25232), 5341 states have internal predecessors, (25232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:22,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 25232 transitions. [2022-03-15 15:26:22,817 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 25232 transitions. Word has length 29 [2022-03-15 15:26:22,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:22,818 INFO L470 AbstractCegarLoop]: Abstraction has 5342 states and 25232 transitions. [2022-03-15 15:26:22,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:22,818 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 25232 transitions. [2022-03-15 15:26:22,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:22,828 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:22,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:22,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-15 15:26:22,828 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:22,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash 414910559, now seen corresponding path program 44 times [2022-03-15 15:26:22,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:22,829 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290416701] [2022-03-15 15:26:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:22,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:23,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:23,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:23,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290416701] [2022-03-15 15:26:23,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290416701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:23,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:23,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:23,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96432411] [2022-03-15 15:26:23,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:23,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:23,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:23,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:23,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:23,032 INFO L87 Difference]: Start difference. First operand 5342 states and 25232 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:23,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:23,257 INFO L93 Difference]: Finished difference Result 11667 states and 51823 transitions. [2022-03-15 15:26:23,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:23,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:23,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:23,291 INFO L225 Difference]: With dead ends: 11667 [2022-03-15 15:26:23,291 INFO L226 Difference]: Without dead ends: 11047 [2022-03-15 15:26:23,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:23,292 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 161 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:23,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 216 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:23,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11047 states. [2022-03-15 15:26:23,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11047 to 5199. [2022-03-15 15:26:23,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.7435552135436705) internal successors, (24657), 5198 states have internal predecessors, (24657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:23,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24657 transitions. [2022-03-15 15:26:23,453 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24657 transitions. Word has length 29 [2022-03-15 15:26:23,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:23,454 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24657 transitions. [2022-03-15 15:26:23,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:23,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24657 transitions. [2022-03-15 15:26:23,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:23,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:23,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:23,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-15 15:26:23,465 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:23,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:23,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1147054113, now seen corresponding path program 45 times [2022-03-15 15:26:23,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:23,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203890670] [2022-03-15 15:26:23,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:23,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:23,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:23,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:23,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203890670] [2022-03-15 15:26:23,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203890670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:23,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:23,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:23,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246038123] [2022-03-15 15:26:23,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:23,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:23,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:23,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:23,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:23,674 INFO L87 Difference]: Start difference. First operand 5199 states and 24657 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:23,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:23,895 INFO L93 Difference]: Finished difference Result 11607 states and 51605 transitions. [2022-03-15 15:26:23,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:23,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:23,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:23,929 INFO L225 Difference]: With dead ends: 11607 [2022-03-15 15:26:23,929 INFO L226 Difference]: Without dead ends: 11065 [2022-03-15 15:26:23,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:23,930 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 170 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:23,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 199 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:23,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11065 states. [2022-03-15 15:26:24,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11065 to 5279. [2022-03-15 15:26:24,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.726222053808261) internal successors, (24945), 5278 states have internal predecessors, (24945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:24,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24945 transitions. [2022-03-15 15:26:24,084 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24945 transitions. Word has length 29 [2022-03-15 15:26:24,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:24,084 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 24945 transitions. [2022-03-15 15:26:24,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:24,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24945 transitions. [2022-03-15 15:26:24,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:24,095 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:24,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:24,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-15 15:26:24,095 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:24,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:24,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1459666911, now seen corresponding path program 46 times [2022-03-15 15:26:24,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:24,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324179235] [2022-03-15 15:26:24,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:24,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:24,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:24,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:24,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324179235] [2022-03-15 15:26:24,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324179235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:24,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:24,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:24,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215475877] [2022-03-15 15:26:24,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:24,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:24,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:24,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:24,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:24,285 INFO L87 Difference]: Start difference. First operand 5279 states and 24945 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:24,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:24,470 INFO L93 Difference]: Finished difference Result 11480 states and 50998 transitions. [2022-03-15 15:26:24,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:24,470 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:24,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:24,505 INFO L225 Difference]: With dead ends: 11480 [2022-03-15 15:26:24,505 INFO L226 Difference]: Without dead ends: 10985 [2022-03-15 15:26:24,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:24,506 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 168 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:24,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 197 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:24,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10985 states. [2022-03-15 15:26:24,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10985 to 5199. [2022-03-15 15:26:24,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.735859946133128) internal successors, (24617), 5198 states have internal predecessors, (24617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:24,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24617 transitions. [2022-03-15 15:26:24,691 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24617 transitions. Word has length 29 [2022-03-15 15:26:24,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:24,691 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24617 transitions. [2022-03-15 15:26:24,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:24,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24617 transitions. [2022-03-15 15:26:24,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:24,702 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:24,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:24,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-15 15:26:24,703 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:24,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:24,704 INFO L85 PathProgramCache]: Analyzing trace with hash -759049151, now seen corresponding path program 47 times [2022-03-15 15:26:24,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:24,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100274882] [2022-03-15 15:26:24,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:24,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:24,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:24,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:24,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100274882] [2022-03-15 15:26:24,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100274882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:24,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:24,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:24,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569842038] [2022-03-15 15:26:24,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:24,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:24,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:24,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:24,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:24,889 INFO L87 Difference]: Start difference. First operand 5199 states and 24617 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:25,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:25,138 INFO L93 Difference]: Finished difference Result 11445 states and 50905 transitions. [2022-03-15 15:26:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:25,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:25,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:25,178 INFO L225 Difference]: With dead ends: 11445 [2022-03-15 15:26:25,178 INFO L226 Difference]: Without dead ends: 10968 [2022-03-15 15:26:25,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:25,179 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 163 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:25,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 209 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:25,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10968 states. [2022-03-15 15:26:25,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10968 to 5247. [2022-03-15 15:26:25,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.726077011056042) internal successors, (24793), 5246 states have internal predecessors, (24793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:25,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24793 transitions. [2022-03-15 15:26:25,357 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24793 transitions. Word has length 29 [2022-03-15 15:26:25,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:25,357 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 24793 transitions. [2022-03-15 15:26:25,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24793 transitions. [2022-03-15 15:26:25,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:25,368 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:25,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:25,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-15 15:26:25,369 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:25,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:25,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1605846113, now seen corresponding path program 48 times [2022-03-15 15:26:25,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:25,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255997939] [2022-03-15 15:26:25,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:25,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:25,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:25,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:25,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255997939] [2022-03-15 15:26:25,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255997939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:25,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:25,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:25,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883417027] [2022-03-15 15:26:25,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:25,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:25,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:25,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:25,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:25,541 INFO L87 Difference]: Start difference. First operand 5247 states and 24793 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:25,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:25,707 INFO L93 Difference]: Finished difference Result 11383 states and 50588 transitions. [2022-03-15 15:26:25,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:25,707 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:25,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:25,742 INFO L225 Difference]: With dead ends: 11383 [2022-03-15 15:26:25,742 INFO L226 Difference]: Without dead ends: 10840 [2022-03-15 15:26:25,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:25,743 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:25,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 198 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:25,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10840 states. [2022-03-15 15:26:25,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10840 to 5119. [2022-03-15 15:26:25,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.759085580304807) internal successors, (24357), 5118 states have internal predecessors, (24357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:25,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24357 transitions. [2022-03-15 15:26:25,897 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24357 transitions. Word has length 29 [2022-03-15 15:26:25,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:25,897 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24357 transitions. [2022-03-15 15:26:25,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:25,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24357 transitions. [2022-03-15 15:26:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:25,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:25,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:25,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-15 15:26:25,909 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:25,909 INFO L85 PathProgramCache]: Analyzing trace with hash -315282299, now seen corresponding path program 49 times [2022-03-15 15:26:25,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:25,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763069736] [2022-03-15 15:26:25,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:25,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:26,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:26,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763069736] [2022-03-15 15:26:26,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763069736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:26,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:26,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:26,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984614363] [2022-03-15 15:26:26,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:26,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:26,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:26,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:26,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:26,181 INFO L87 Difference]: Start difference. First operand 5119 states and 24357 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:26,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:26,392 INFO L93 Difference]: Finished difference Result 11240 states and 50167 transitions. [2022-03-15 15:26:26,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:26,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:26,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:26,428 INFO L225 Difference]: With dead ends: 11240 [2022-03-15 15:26:26,428 INFO L226 Difference]: Without dead ends: 10825 [2022-03-15 15:26:26,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:26,428 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 171 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:26,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 201 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:26,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10825 states. [2022-03-15 15:26:26,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10825 to 5247. [2022-03-15 15:26:26,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.751239039268014) internal successors, (24925), 5246 states have internal predecessors, (24925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:26,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24925 transitions. [2022-03-15 15:26:26,600 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24925 transitions. Word has length 29 [2022-03-15 15:26:26,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:26,600 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 24925 transitions. [2022-03-15 15:26:26,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:26,600 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24925 transitions. [2022-03-15 15:26:26,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:26,611 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:26,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:26,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-15 15:26:26,612 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:26,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:26,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1300486329, now seen corresponding path program 50 times [2022-03-15 15:26:26,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:26,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022700349] [2022-03-15 15:26:26,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:26,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:26,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:26,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:26,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022700349] [2022-03-15 15:26:26,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022700349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:26,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:26,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:26,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915507898] [2022-03-15 15:26:26,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:26,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:26,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:26,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:26,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:26,786 INFO L87 Difference]: Start difference. First operand 5247 states and 24925 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:26,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:26,984 INFO L93 Difference]: Finished difference Result 11367 states and 50646 transitions. [2022-03-15 15:26:26,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:26,985 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:26,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:27,018 INFO L225 Difference]: With dead ends: 11367 [2022-03-15 15:26:27,019 INFO L226 Difference]: Without dead ends: 10745 [2022-03-15 15:26:27,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:27,019 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 164 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:27,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 215 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:27,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2022-03-15 15:26:27,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 5167. [2022-03-15 15:26:27,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.756678281068525) internal successors, (24573), 5166 states have internal predecessors, (24573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:27,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24573 transitions. [2022-03-15 15:26:27,191 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24573 transitions. Word has length 29 [2022-03-15 15:26:27,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:27,191 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24573 transitions. [2022-03-15 15:26:27,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:27,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24573 transitions. [2022-03-15 15:26:27,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:27,203 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:27,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:27,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-15 15:26:27,203 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:27,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:27,204 INFO L85 PathProgramCache]: Analyzing trace with hash -230494301, now seen corresponding path program 51 times [2022-03-15 15:26:27,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:27,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547514095] [2022-03-15 15:26:27,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:27,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:27,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:27,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:27,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547514095] [2022-03-15 15:26:27,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547514095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:27,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:27,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:27,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756634954] [2022-03-15 15:26:27,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:27,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:27,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:27,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:27,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:27,388 INFO L87 Difference]: Start difference. First operand 5167 states and 24573 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:27,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:27,610 INFO L93 Difference]: Finished difference Result 11065 states and 49384 transitions. [2022-03-15 15:26:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:27,611 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:27,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:27,644 INFO L225 Difference]: With dead ends: 11065 [2022-03-15 15:26:27,645 INFO L226 Difference]: Without dead ends: 10650 [2022-03-15 15:26:27,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:27,645 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 168 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:27,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 220 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:27,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10650 states. [2022-03-15 15:26:27,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10650 to 5199. [2022-03-15 15:26:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.74894190073105) internal successors, (24685), 5198 states have internal predecessors, (24685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24685 transitions. [2022-03-15 15:26:27,807 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24685 transitions. Word has length 29 [2022-03-15 15:26:27,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:27,807 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24685 transitions. [2022-03-15 15:26:27,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:27,808 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24685 transitions. [2022-03-15 15:26:27,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:27,818 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:27,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:27,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-15 15:26:27,818 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:27,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:27,819 INFO L85 PathProgramCache]: Analyzing trace with hash 436971613, now seen corresponding path program 52 times [2022-03-15 15:26:27,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:27,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971327915] [2022-03-15 15:26:27,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:27,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:27,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:27,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:27,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971327915] [2022-03-15 15:26:27,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971327915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:27,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:27,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:27,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586155215] [2022-03-15 15:26:27,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:27,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:27,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:27,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:27,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:27,997 INFO L87 Difference]: Start difference. First operand 5199 states and 24685 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:28,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:28,217 INFO L93 Difference]: Finished difference Result 11065 states and 49352 transitions. [2022-03-15 15:26:28,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:28,218 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:28,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:28,268 INFO L225 Difference]: With dead ends: 11065 [2022-03-15 15:26:28,269 INFO L226 Difference]: Without dead ends: 10618 [2022-03-15 15:26:28,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:28,269 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 153 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:28,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 225 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:28,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10618 states. [2022-03-15 15:26:28,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10618 to 5167. [2022-03-15 15:26:28,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.753581107239643) internal successors, (24557), 5166 states have internal predecessors, (24557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:28,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24557 transitions. [2022-03-15 15:26:28,451 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24557 transitions. Word has length 29 [2022-03-15 15:26:28,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:28,452 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24557 transitions. [2022-03-15 15:26:28,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:28,452 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24557 transitions. [2022-03-15 15:26:28,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:28,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:28,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:28,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-15 15:26:28,464 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:28,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:28,464 INFO L85 PathProgramCache]: Analyzing trace with hash -447114243, now seen corresponding path program 53 times [2022-03-15 15:26:28,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:28,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4563125] [2022-03-15 15:26:28,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:28,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:28,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:28,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4563125] [2022-03-15 15:26:28,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4563125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:28,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:28,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:28,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134843509] [2022-03-15 15:26:28,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:28,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:28,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:28,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:28,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:28,711 INFO L87 Difference]: Start difference. First operand 5167 states and 24557 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:28,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:28,938 INFO L93 Difference]: Finished difference Result 11367 states and 50646 transitions. [2022-03-15 15:26:28,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:28,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:28,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:28,972 INFO L225 Difference]: With dead ends: 11367 [2022-03-15 15:26:28,973 INFO L226 Difference]: Without dead ends: 10825 [2022-03-15 15:26:28,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:28,983 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 158 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:28,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 223 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:29,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10825 states. [2022-03-15 15:26:29,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10825 to 5247. [2022-03-15 15:26:29,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.735989325200152) internal successors, (24845), 5246 states have internal predecessors, (24845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:29,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24845 transitions. [2022-03-15 15:26:29,150 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24845 transitions. Word has length 29 [2022-03-15 15:26:29,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:29,150 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 24845 transitions. [2022-03-15 15:26:29,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:29,151 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24845 transitions. [2022-03-15 15:26:29,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:29,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:29,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:29,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-15 15:26:29,162 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:29,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:29,162 INFO L85 PathProgramCache]: Analyzing trace with hash -653922209, now seen corresponding path program 54 times [2022-03-15 15:26:29,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:29,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244325518] [2022-03-15 15:26:29,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:29,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:29,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:29,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:29,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244325518] [2022-03-15 15:26:29,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244325518] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:29,395 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:29,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:29,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75575295] [2022-03-15 15:26:29,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:29,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:29,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:29,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:29,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:29,396 INFO L87 Difference]: Start difference. First operand 5247 states and 24845 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:29,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:29,595 INFO L93 Difference]: Finished difference Result 11240 states and 50039 transitions. [2022-03-15 15:26:29,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:29,595 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:29,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:29,631 INFO L225 Difference]: With dead ends: 11240 [2022-03-15 15:26:29,631 INFO L226 Difference]: Without dead ends: 10713 [2022-03-15 15:26:29,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:29,631 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:29,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 212 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:29,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10713 states. [2022-03-15 15:26:29,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10713 to 5135. [2022-03-15 15:26:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.758278145695364) internal successors, (24429), 5134 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:29,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24429 transitions. [2022-03-15 15:26:29,800 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24429 transitions. Word has length 29 [2022-03-15 15:26:29,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:29,801 INFO L470 AbstractCegarLoop]: Abstraction has 5135 states and 24429 transitions. [2022-03-15 15:26:29,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:29,801 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24429 transitions. [2022-03-15 15:26:29,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:29,812 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:29,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:29,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-15 15:26:29,812 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:29,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:29,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1142764771, now seen corresponding path program 55 times [2022-03-15 15:26:29,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:29,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315294250] [2022-03-15 15:26:29,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:29,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:29,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:29,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315294250] [2022-03-15 15:26:29,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315294250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:29,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:29,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:29,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189343965] [2022-03-15 15:26:29,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:29,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:29,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:29,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:29,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:29,981 INFO L87 Difference]: Start difference. First operand 5135 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:30,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:30,193 INFO L93 Difference]: Finished difference Result 11354 states and 50686 transitions. [2022-03-15 15:26:30,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:30,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:30,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:30,227 INFO L225 Difference]: With dead ends: 11354 [2022-03-15 15:26:30,227 INFO L226 Difference]: Without dead ends: 10939 [2022-03-15 15:26:30,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:30,228 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 174 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:30,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 199 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:30,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2022-03-15 15:26:30,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5255. [2022-03-15 15:26:30,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.7493338408831365) internal successors, (24953), 5254 states have internal predecessors, (24953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:30,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24953 transitions. [2022-03-15 15:26:30,387 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24953 transitions. Word has length 29 [2022-03-15 15:26:30,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:30,387 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 24953 transitions. [2022-03-15 15:26:30,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:30,387 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24953 transitions. [2022-03-15 15:26:30,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:30,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:30,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:30,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-15 15:26:30,398 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:30,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:30,399 INFO L85 PathProgramCache]: Analyzing trace with hash 157560741, now seen corresponding path program 56 times [2022-03-15 15:26:30,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:30,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939447875] [2022-03-15 15:26:30,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:30,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:30,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:30,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:30,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939447875] [2022-03-15 15:26:30,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939447875] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:30,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:30,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:30,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103265837] [2022-03-15 15:26:30,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:30,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:30,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:30,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:30,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:30,603 INFO L87 Difference]: Start difference. First operand 5255 states and 24953 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:30,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:30,786 INFO L93 Difference]: Finished difference Result 11481 states and 51165 transitions. [2022-03-15 15:26:30,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:30,786 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:30,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:30,820 INFO L225 Difference]: With dead ends: 11481 [2022-03-15 15:26:30,820 INFO L226 Difference]: Without dead ends: 10859 [2022-03-15 15:26:30,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:30,821 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 175 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:30,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 208 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:30,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10859 states. [2022-03-15 15:26:30,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10859 to 5175. [2022-03-15 15:26:30,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.753189022033244) internal successors, (24593), 5174 states have internal predecessors, (24593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:30,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24593 transitions. [2022-03-15 15:26:30,971 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24593 transitions. Word has length 29 [2022-03-15 15:26:30,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:30,972 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24593 transitions. [2022-03-15 15:26:30,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:30,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24593 transitions. [2022-03-15 15:26:30,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:30,982 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:30,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:30,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-15 15:26:30,983 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:30,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:30,984 INFO L85 PathProgramCache]: Analyzing trace with hash 810620963, now seen corresponding path program 57 times [2022-03-15 15:26:30,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:30,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940024951] [2022-03-15 15:26:30,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:30,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:31,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:31,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:31,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940024951] [2022-03-15 15:26:31,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940024951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:31,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:31,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:31,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248002667] [2022-03-15 15:26:31,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:31,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:31,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:31,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:31,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:31,135 INFO L87 Difference]: Start difference. First operand 5175 states and 24593 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:31,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:31,313 INFO L93 Difference]: Finished difference Result 11255 states and 50239 transitions. [2022-03-15 15:26:31,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:31,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:31,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:31,347 INFO L225 Difference]: With dead ends: 11255 [2022-03-15 15:26:31,347 INFO L226 Difference]: Without dead ends: 10840 [2022-03-15 15:26:31,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:31,353 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 168 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:31,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 214 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:31,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10840 states. [2022-03-15 15:26:31,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10840 to 5223. [2022-03-15 15:26:31,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.743201838376101) internal successors, (24769), 5222 states have internal predecessors, (24769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24769 transitions. [2022-03-15 15:26:31,506 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24769 transitions. Word has length 29 [2022-03-15 15:26:31,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:31,506 INFO L470 AbstractCegarLoop]: Abstraction has 5223 states and 24769 transitions. [2022-03-15 15:26:31,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:31,507 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24769 transitions. [2022-03-15 15:26:31,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:31,517 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:31,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:31,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-15 15:26:31,518 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:31,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:31,518 INFO L85 PathProgramCache]: Analyzing trace with hash -191435899, now seen corresponding path program 58 times [2022-03-15 15:26:31,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:31,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772139038] [2022-03-15 15:26:31,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:31,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:31,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:31,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772139038] [2022-03-15 15:26:31,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772139038] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:31,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:31,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:31,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281967261] [2022-03-15 15:26:31,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:31,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:31,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:31,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:31,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:31,690 INFO L87 Difference]: Start difference. First operand 5223 states and 24769 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:31,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:31,924 INFO L93 Difference]: Finished difference Result 11315 states and 50455 transitions. [2022-03-15 15:26:31,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:31,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:31,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:31,965 INFO L225 Difference]: With dead ends: 11315 [2022-03-15 15:26:31,965 INFO L226 Difference]: Without dead ends: 10792 [2022-03-15 15:26:31,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:31,966 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 166 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:31,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 198 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:31,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10792 states. [2022-03-15 15:26:32,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10792 to 5175. [2022-03-15 15:26:32,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.748550444530344) internal successors, (24569), 5174 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:32,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24569 transitions. [2022-03-15 15:26:32,144 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24569 transitions. Word has length 29 [2022-03-15 15:26:32,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:32,144 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24569 transitions. [2022-03-15 15:26:32,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:32,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24569 transitions. [2022-03-15 15:26:32,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:32,155 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:32,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:32,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-15 15:26:32,156 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:32,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:32,156 INFO L85 PathProgramCache]: Analyzing trace with hash 198667719, now seen corresponding path program 59 times [2022-03-15 15:26:32,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:32,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306572374] [2022-03-15 15:26:32,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:32,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:32,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:32,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:32,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306572374] [2022-03-15 15:26:32,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306572374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:32,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:32,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:32,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964736043] [2022-03-15 15:26:32,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:32,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:32,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:32,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:32,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:32,367 INFO L87 Difference]: Start difference. First operand 5175 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:32,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:32,563 INFO L93 Difference]: Finished difference Result 11571 states and 51560 transitions. [2022-03-15 15:26:32,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:32,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:32,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:32,600 INFO L225 Difference]: With dead ends: 11571 [2022-03-15 15:26:32,600 INFO L226 Difference]: Without dead ends: 11029 [2022-03-15 15:26:32,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:32,601 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 174 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:32,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 211 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:32,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11029 states. [2022-03-15 15:26:32,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11029 to 5285. [2022-03-15 15:26:32,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5285 states, 5284 states have (on average 4.726343679031037) internal successors, (24974), 5284 states have internal predecessors, (24974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:32,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 24974 transitions. [2022-03-15 15:26:32,773 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 24974 transitions. Word has length 29 [2022-03-15 15:26:32,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:32,774 INFO L470 AbstractCegarLoop]: Abstraction has 5285 states and 24974 transitions. [2022-03-15 15:26:32,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:32,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 24974 transitions. [2022-03-15 15:26:32,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:32,785 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:32,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:32,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-15 15:26:32,785 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:32,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:32,786 INFO L85 PathProgramCache]: Analyzing trace with hash -542284379, now seen corresponding path program 60 times [2022-03-15 15:26:32,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:32,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37367125] [2022-03-15 15:26:32,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:32,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:33,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:33,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:33,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37367125] [2022-03-15 15:26:33,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37367125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:33,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:33,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:33,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765126423] [2022-03-15 15:26:33,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:33,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:33,012 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:33,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:33,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:33,013 INFO L87 Difference]: Start difference. First operand 5285 states and 24974 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:33,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:33,254 INFO L93 Difference]: Finished difference Result 11504 states and 51187 transitions. [2022-03-15 15:26:33,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:33,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:33,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:33,296 INFO L225 Difference]: With dead ends: 11504 [2022-03-15 15:26:33,297 INFO L226 Difference]: Without dead ends: 10879 [2022-03-15 15:26:33,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:33,297 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 161 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:33,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 200 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:33,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10879 states. [2022-03-15 15:26:33,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10879 to 5135. [2022-03-15 15:26:33,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.755161667315933) internal successors, (24413), 5134 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:33,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24413 transitions. [2022-03-15 15:26:33,473 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24413 transitions. Word has length 29 [2022-03-15 15:26:33,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:33,473 INFO L470 AbstractCegarLoop]: Abstraction has 5135 states and 24413 transitions. [2022-03-15 15:26:33,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:33,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24413 transitions. [2022-03-15 15:26:33,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:33,484 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:33,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:33,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-15 15:26:33,484 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:33,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:33,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1645118527, now seen corresponding path program 61 times [2022-03-15 15:26:33,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:33,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678191586] [2022-03-15 15:26:33,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:33,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:33,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:33,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:33,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678191586] [2022-03-15 15:26:33,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678191586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:33,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:33,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:33,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201815924] [2022-03-15 15:26:33,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:33,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:33,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:33,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:33,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:33,673 INFO L87 Difference]: Start difference. First operand 5135 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:33,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:33,938 INFO L93 Difference]: Finished difference Result 10918 states and 48753 transitions. [2022-03-15 15:26:33,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:33,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:33,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:33,974 INFO L225 Difference]: With dead ends: 10918 [2022-03-15 15:26:33,974 INFO L226 Difference]: Without dead ends: 10503 [2022-03-15 15:26:33,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:33,974 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 160 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:33,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 216 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:33,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10503 states. [2022-03-15 15:26:34,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10503 to 5183. [2022-03-15 15:26:34,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.748166730991895) internal successors, (24605), 5182 states have internal predecessors, (24605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24605 transitions. [2022-03-15 15:26:34,216 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24605 transitions. Word has length 29 [2022-03-15 15:26:34,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:34,217 INFO L470 AbstractCegarLoop]: Abstraction has 5183 states and 24605 transitions. [2022-03-15 15:26:34,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24605 transitions. [2022-03-15 15:26:34,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:34,227 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:34,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:34,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-15 15:26:34,227 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:34,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:34,228 INFO L85 PathProgramCache]: Analyzing trace with hash -977652613, now seen corresponding path program 62 times [2022-03-15 15:26:34,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:34,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142970153] [2022-03-15 15:26:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:34,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:34,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:34,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:34,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142970153] [2022-03-15 15:26:34,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142970153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:34,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:34,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:34,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663707679] [2022-03-15 15:26:34,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:34,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:34,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:34,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:34,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:34,411 INFO L87 Difference]: Start difference. First operand 5183 states and 24605 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:34,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:34,607 INFO L93 Difference]: Finished difference Result 10918 states and 48721 transitions. [2022-03-15 15:26:34,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:34,607 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:34,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:34,648 INFO L225 Difference]: With dead ends: 10918 [2022-03-15 15:26:34,649 INFO L226 Difference]: Without dead ends: 10471 [2022-03-15 15:26:34,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:34,649 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 181 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:34,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 208 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:34,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10471 states. [2022-03-15 15:26:34,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10471 to 5151. [2022-03-15 15:26:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5150 states have (on average 4.752815533980582) internal successors, (24477), 5150 states have internal predecessors, (24477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:34,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 24477 transitions. [2022-03-15 15:26:34,826 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 24477 transitions. Word has length 29 [2022-03-15 15:26:34,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:34,826 INFO L470 AbstractCegarLoop]: Abstraction has 5151 states and 24477 transitions. [2022-03-15 15:26:34,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:34,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 24477 transitions. [2022-03-15 15:26:34,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:34,837 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:34,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:34,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-15 15:26:34,838 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:34,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:34,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2126020573, now seen corresponding path program 63 times [2022-03-15 15:26:34,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:34,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484496454] [2022-03-15 15:26:34,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:34,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:35,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:35,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:35,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484496454] [2022-03-15 15:26:35,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484496454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:35,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:35,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:35,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282569017] [2022-03-15 15:26:35,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:35,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:35,021 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:35,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:35,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:35,022 INFO L87 Difference]: Start difference. First operand 5151 states and 24477 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:35,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:35,298 INFO L93 Difference]: Finished difference Result 10994 states and 49081 transitions. [2022-03-15 15:26:35,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:35,298 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:35,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:35,336 INFO L225 Difference]: With dead ends: 10994 [2022-03-15 15:26:35,336 INFO L226 Difference]: Without dead ends: 10579 [2022-03-15 15:26:35,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:35,336 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 162 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:35,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 236 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:35,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2022-03-15 15:26:35,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 5199. [2022-03-15 15:26:35,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.742785686802616) internal successors, (24653), 5198 states have internal predecessors, (24653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:35,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24653 transitions. [2022-03-15 15:26:35,497 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24653 transitions. Word has length 29 [2022-03-15 15:26:35,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:35,497 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24653 transitions. [2022-03-15 15:26:35,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:35,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24653 transitions. [2022-03-15 15:26:35,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:35,508 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:35,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:35,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-15 15:26:35,508 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:35,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash -314548445, now seen corresponding path program 64 times [2022-03-15 15:26:35,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:35,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166999205] [2022-03-15 15:26:35,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:35,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:35,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:35,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:35,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166999205] [2022-03-15 15:26:35,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166999205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:35,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:35,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:35,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632096321] [2022-03-15 15:26:35,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:35,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:35,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:35,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:35,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:35,620 INFO L87 Difference]: Start difference. First operand 5199 states and 24653 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:35,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:35,816 INFO L93 Difference]: Finished difference Result 11054 states and 49297 transitions. [2022-03-15 15:26:35,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:35,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:35,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:35,850 INFO L225 Difference]: With dead ends: 11054 [2022-03-15 15:26:35,850 INFO L226 Difference]: Without dead ends: 10531 [2022-03-15 15:26:35,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:35,851 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 160 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:35,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 225 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:35,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10531 states. [2022-03-15 15:26:35,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10531 to 5151. [2022-03-15 15:26:35,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5150 states have (on average 4.749708737864077) internal successors, (24461), 5150 states have internal predecessors, (24461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:35,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 24461 transitions. [2022-03-15 15:26:35,992 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 24461 transitions. Word has length 29 [2022-03-15 15:26:35,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:35,992 INFO L470 AbstractCegarLoop]: Abstraction has 5151 states and 24461 transitions. [2022-03-15 15:26:35,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:35,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 24461 transitions. [2022-03-15 15:26:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:36,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:36,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:36,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-15 15:26:36,002 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:36,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:36,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1108348677, now seen corresponding path program 65 times [2022-03-15 15:26:36,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:36,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385335012] [2022-03-15 15:26:36,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:36,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:36,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:36,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:36,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385335012] [2022-03-15 15:26:36,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385335012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:36,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:36,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:36,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301289971] [2022-03-15 15:26:36,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:36,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:36,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:36,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:36,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:36,206 INFO L87 Difference]: Start difference. First operand 5151 states and 24461 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:36,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:36,418 INFO L93 Difference]: Finished difference Result 10994 states and 49065 transitions. [2022-03-15 15:26:36,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:36,418 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:36,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:36,456 INFO L225 Difference]: With dead ends: 10994 [2022-03-15 15:26:36,456 INFO L226 Difference]: Without dead ends: 10579 [2022-03-15 15:26:36,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:36,457 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:36,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 200 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:36,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10579 states. [2022-03-15 15:26:36,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10579 to 5199. [2022-03-15 15:26:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.7397075798384) internal successors, (24637), 5198 states have internal predecessors, (24637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:36,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24637 transitions. [2022-03-15 15:26:36,636 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24637 transitions. Word has length 29 [2022-03-15 15:26:36,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:36,637 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24637 transitions. [2022-03-15 15:26:36,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:36,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24637 transitions. [2022-03-15 15:26:36,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:36,648 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:36,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:36,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-15 15:26:36,649 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:36,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:36,649 INFO L85 PathProgramCache]: Analyzing trace with hash -27286051, now seen corresponding path program 66 times [2022-03-15 15:26:36,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:36,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098940681] [2022-03-15 15:26:36,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:36,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:36,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:36,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098940681] [2022-03-15 15:26:36,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098940681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:36,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:36,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:36,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718826741] [2022-03-15 15:26:36,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:36,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:36,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:36,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:36,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:36,856 INFO L87 Difference]: Start difference. First operand 5199 states and 24637 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:37,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:37,074 INFO L93 Difference]: Finished difference Result 11054 states and 49281 transitions. [2022-03-15 15:26:37,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:37,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:37,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:37,113 INFO L225 Difference]: With dead ends: 11054 [2022-03-15 15:26:37,113 INFO L226 Difference]: Without dead ends: 10515 [2022-03-15 15:26:37,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:37,113 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 153 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:37,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 232 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:37,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10515 states. [2022-03-15 15:26:37,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10515 to 5135. [2022-03-15 15:26:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.753603428126217) internal successors, (24405), 5134 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:37,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24405 transitions. [2022-03-15 15:26:37,284 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24405 transitions. Word has length 29 [2022-03-15 15:26:37,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:37,284 INFO L470 AbstractCegarLoop]: Abstraction has 5135 states and 24405 transitions. [2022-03-15 15:26:37,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:37,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24405 transitions. [2022-03-15 15:26:37,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:37,296 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:37,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:37,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-15 15:26:37,296 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:37,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:37,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1802031845, now seen corresponding path program 67 times [2022-03-15 15:26:37,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:37,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891919705] [2022-03-15 15:26:37,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:37,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:37,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:37,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:37,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891919705] [2022-03-15 15:26:37,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891919705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:37,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:37,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:37,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053411121] [2022-03-15 15:26:37,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:37,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:37,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:37,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:37,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:37,471 INFO L87 Difference]: Start difference. First operand 5135 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:37,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:37,705 INFO L93 Difference]: Finished difference Result 11481 states and 51189 transitions. [2022-03-15 15:26:37,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:37,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:37,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:37,746 INFO L225 Difference]: With dead ends: 11481 [2022-03-15 15:26:37,746 INFO L226 Difference]: Without dead ends: 10939 [2022-03-15 15:26:37,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:37,746 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:37,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 237 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:37,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2022-03-15 15:26:37,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5255. [2022-03-15 15:26:37,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.738675295013323) internal successors, (24897), 5254 states have internal predecessors, (24897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:37,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24897 transitions. [2022-03-15 15:26:37,921 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24897 transitions. Word has length 29 [2022-03-15 15:26:37,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:37,921 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 24897 transitions. [2022-03-15 15:26:37,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:37,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24897 transitions. [2022-03-15 15:26:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:37,933 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:37,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:37,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-15 15:26:37,933 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:37,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:37,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2008839811, now seen corresponding path program 68 times [2022-03-15 15:26:37,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:37,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788509192] [2022-03-15 15:26:37,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:37,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:38,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:38,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:38,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788509192] [2022-03-15 15:26:38,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788509192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:38,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:38,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:38,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660012421] [2022-03-15 15:26:38,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:38,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:38,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:38,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:38,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:38,122 INFO L87 Difference]: Start difference. First operand 5255 states and 24897 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:38,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:38,332 INFO L93 Difference]: Finished difference Result 11354 states and 50582 transitions. [2022-03-15 15:26:38,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:38,333 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:38,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:38,367 INFO L225 Difference]: With dead ends: 11354 [2022-03-15 15:26:38,367 INFO L226 Difference]: Without dead ends: 10859 [2022-03-15 15:26:38,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:38,368 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 161 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:38,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 212 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:38,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10859 states. [2022-03-15 15:26:38,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10859 to 5175. [2022-03-15 15:26:38,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.748550444530344) internal successors, (24569), 5174 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:38,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24569 transitions. [2022-03-15 15:26:38,552 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24569 transitions. Word has length 29 [2022-03-15 15:26:38,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:38,552 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24569 transitions. [2022-03-15 15:26:38,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:38,552 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24569 transitions. [2022-03-15 15:26:38,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:38,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:38,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:38,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-15 15:26:38,565 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:38,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:38,566 INFO L85 PathProgramCache]: Analyzing trace with hash 2012033405, now seen corresponding path program 69 times [2022-03-15 15:26:38,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:38,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608078770] [2022-03-15 15:26:38,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:38,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:38,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:38,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608078770] [2022-03-15 15:26:38,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608078770] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:38,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:38,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:38,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000648190] [2022-03-15 15:26:38,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:38,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:38,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:38,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:38,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:38,756 INFO L87 Difference]: Start difference. First operand 5175 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:38,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:38,959 INFO L93 Difference]: Finished difference Result 11571 states and 51560 transitions. [2022-03-15 15:26:38,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:38,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:38,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:38,994 INFO L225 Difference]: With dead ends: 11571 [2022-03-15 15:26:38,994 INFO L226 Difference]: Without dead ends: 11029 [2022-03-15 15:26:38,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:38,994 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 170 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:38,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 204 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:39,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11029 states. [2022-03-15 15:26:39,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11029 to 5285. [2022-03-15 15:26:39,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5285 states, 5284 states have (on average 4.726343679031037) internal successors, (24974), 5284 states have internal predecessors, (24974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 24974 transitions. [2022-03-15 15:26:39,149 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 24974 transitions. Word has length 29 [2022-03-15 15:26:39,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:39,149 INFO L470 AbstractCegarLoop]: Abstraction has 5285 states and 24974 transitions. [2022-03-15 15:26:39,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:39,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 24974 transitions. [2022-03-15 15:26:39,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:39,160 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:39,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:39,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-15 15:26:39,164 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:39,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:39,164 INFO L85 PathProgramCache]: Analyzing trace with hash -964083459, now seen corresponding path program 70 times [2022-03-15 15:26:39,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:39,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844758547] [2022-03-15 15:26:39,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:39,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:39,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:39,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844758547] [2022-03-15 15:26:39,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844758547] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:39,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:39,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:39,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137525519] [2022-03-15 15:26:39,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:39,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:39,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:39,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:39,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:39,370 INFO L87 Difference]: Start difference. First operand 5285 states and 24974 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:39,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:39,576 INFO L93 Difference]: Finished difference Result 11504 states and 51187 transitions. [2022-03-15 15:26:39,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:39,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:39,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:39,611 INFO L225 Difference]: With dead ends: 11504 [2022-03-15 15:26:39,612 INFO L226 Difference]: Without dead ends: 10919 [2022-03-15 15:26:39,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:39,612 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 170 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:39,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 188 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:39,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10919 states. [2022-03-15 15:26:39,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10919 to 5175. [2022-03-15 15:26:39,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.740819482025512) internal successors, (24529), 5174 states have internal predecessors, (24529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:39,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24529 transitions. [2022-03-15 15:26:39,766 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24529 transitions. Word has length 29 [2022-03-15 15:26:39,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:39,766 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24529 transitions. [2022-03-15 15:26:39,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:39,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24529 transitions. [2022-03-15 15:26:39,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:39,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:39,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:39,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-15 15:26:39,777 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:39,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:39,777 INFO L85 PathProgramCache]: Analyzing trace with hash 419110111, now seen corresponding path program 71 times [2022-03-15 15:26:39,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:39,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454223304] [2022-03-15 15:26:39,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:39,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:39,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:39,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454223304] [2022-03-15 15:26:39,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454223304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:39,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:39,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:39,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778615084] [2022-03-15 15:26:39,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:39,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:39,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:39,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:39,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:39,942 INFO L87 Difference]: Start difference. First operand 5175 states and 24529 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:40,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:40,115 INFO L93 Difference]: Finished difference Result 11255 states and 50175 transitions. [2022-03-15 15:26:40,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:40,115 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:40,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:40,149 INFO L225 Difference]: With dead ends: 11255 [2022-03-15 15:26:40,150 INFO L226 Difference]: Without dead ends: 10840 [2022-03-15 15:26:40,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:40,150 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 154 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:40,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 208 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:40,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10840 states. [2022-03-15 15:26:40,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10840 to 5223. [2022-03-15 15:26:40,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.73094599770203) internal successors, (24705), 5222 states have internal predecessors, (24705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:40,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24705 transitions. [2022-03-15 15:26:40,305 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24705 transitions. Word has length 29 [2022-03-15 15:26:40,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:40,306 INFO L470 AbstractCegarLoop]: Abstraction has 5223 states and 24705 transitions. [2022-03-15 15:26:40,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:40,306 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24705 transitions. [2022-03-15 15:26:40,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:40,316 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:40,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:40,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-15 15:26:40,316 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:40,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:40,317 INFO L85 PathProgramCache]: Analyzing trace with hash -427686851, now seen corresponding path program 72 times [2022-03-15 15:26:40,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:40,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135421283] [2022-03-15 15:26:40,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:40,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:40,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:40,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:40,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135421283] [2022-03-15 15:26:40,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135421283] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:40,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:40,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:40,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899809118] [2022-03-15 15:26:40,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:40,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:40,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:40,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:40,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:40,501 INFO L87 Difference]: Start difference. First operand 5223 states and 24705 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:40,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:40,736 INFO L93 Difference]: Finished difference Result 11315 states and 50391 transitions. [2022-03-15 15:26:40,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:40,736 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:40,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:40,769 INFO L225 Difference]: With dead ends: 11315 [2022-03-15 15:26:40,769 INFO L226 Difference]: Without dead ends: 10736 [2022-03-15 15:26:40,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:40,770 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:40,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 214 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:40,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10736 states. [2022-03-15 15:26:40,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10736 to 5119. [2022-03-15 15:26:40,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.757522469714733) internal successors, (24349), 5118 states have internal predecessors, (24349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:40,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24349 transitions. [2022-03-15 15:26:40,914 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24349 transitions. Word has length 29 [2022-03-15 15:26:40,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:40,914 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24349 transitions. [2022-03-15 15:26:40,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:40,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24349 transitions. [2022-03-15 15:26:40,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:40,924 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:40,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:40,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-15 15:26:40,932 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:40,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:40,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1931418943, now seen corresponding path program 73 times [2022-03-15 15:26:40,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:40,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881118439] [2022-03-15 15:26:40,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:40,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:41,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:41,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:41,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881118439] [2022-03-15 15:26:41,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881118439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:41,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:41,142 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:41,142 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445701558] [2022-03-15 15:26:41,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:41,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:41,142 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:41,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:41,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:41,143 INFO L87 Difference]: Start difference. First operand 5119 states and 24349 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:41,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:41,350 INFO L93 Difference]: Finished difference Result 10781 states and 48157 transitions. [2022-03-15 15:26:41,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:41,351 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:41,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:41,383 INFO L225 Difference]: With dead ends: 10781 [2022-03-15 15:26:41,383 INFO L226 Difference]: Without dead ends: 10366 [2022-03-15 15:26:41,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:41,383 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 155 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:41,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 247 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:41,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10366 states. [2022-03-15 15:26:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10366 to 5191. [2022-03-15 15:26:41,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.7493256262042385) internal successors, (24649), 5190 states have internal predecessors, (24649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:41,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24649 transitions. [2022-03-15 15:26:41,529 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24649 transitions. Word has length 29 [2022-03-15 15:26:41,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:41,529 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24649 transitions. [2022-03-15 15:26:41,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:41,529 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24649 transitions. [2022-03-15 15:26:41,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:41,539 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:41,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:41,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-15 15:26:41,540 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:41,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:41,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1702131933, now seen corresponding path program 74 times [2022-03-15 15:26:41,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:41,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766509092] [2022-03-15 15:26:41,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:41,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:41,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:41,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:41,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766509092] [2022-03-15 15:26:41,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766509092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:41,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:41,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:41,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411752196] [2022-03-15 15:26:41,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:41,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:41,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:41,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:41,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:41,813 INFO L87 Difference]: Start difference. First operand 5191 states and 24649 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:42,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:42,053 INFO L93 Difference]: Finished difference Result 10843 states and 48378 transitions. [2022-03-15 15:26:42,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:42,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:42,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:42,090 INFO L225 Difference]: With dead ends: 10843 [2022-03-15 15:26:42,090 INFO L226 Difference]: Without dead ends: 10318 [2022-03-15 15:26:42,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:42,091 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 156 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:42,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 226 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:42,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2022-03-15 15:26:42,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 5143. [2022-03-15 15:26:42,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.756320497860755) internal successors, (24457), 5142 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:42,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24457 transitions. [2022-03-15 15:26:42,273 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24457 transitions. Word has length 29 [2022-03-15 15:26:42,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:42,273 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24457 transitions. [2022-03-15 15:26:42,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:42,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24457 transitions. [2022-03-15 15:26:42,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:42,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:42,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:42,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-15 15:26:42,285 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:42,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:42,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1882646307, now seen corresponding path program 75 times [2022-03-15 15:26:42,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:42,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488744398] [2022-03-15 15:26:42,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:42,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:42,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:42,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488744398] [2022-03-15 15:26:42,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488744398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:42,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:42,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:42,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979299886] [2022-03-15 15:26:42,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:42,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:42,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:42,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:42,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:42,464 INFO L87 Difference]: Start difference. First operand 5143 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:42,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:42,681 INFO L93 Difference]: Finished difference Result 10703 states and 47792 transitions. [2022-03-15 15:26:42,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:42,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:42,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:42,719 INFO L225 Difference]: With dead ends: 10703 [2022-03-15 15:26:42,719 INFO L226 Difference]: Without dead ends: 10288 [2022-03-15 15:26:42,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:42,720 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 169 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:42,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 219 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:42,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10288 states. [2022-03-15 15:26:42,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10288 to 5175. [2022-03-15 15:26:42,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.748550444530344) internal successors, (24569), 5174 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:42,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24569 transitions. [2022-03-15 15:26:42,900 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24569 transitions. Word has length 29 [2022-03-15 15:26:42,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:42,900 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24569 transitions. [2022-03-15 15:26:42,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:42,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24569 transitions. [2022-03-15 15:26:42,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:42,911 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:42,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:42,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-15 15:26:42,911 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:42,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:42,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1068673915, now seen corresponding path program 76 times [2022-03-15 15:26:42,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:42,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405639516] [2022-03-15 15:26:42,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:42,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:43,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:43,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:43,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405639516] [2022-03-15 15:26:43,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405639516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:43,067 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:43,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:43,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347795180] [2022-03-15 15:26:43,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:43,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:43,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:43,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:43,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:43,068 INFO L87 Difference]: Start difference. First operand 5175 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:43,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:43,259 INFO L93 Difference]: Finished difference Result 10703 states and 47760 transitions. [2022-03-15 15:26:43,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:43,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:43,292 INFO L225 Difference]: With dead ends: 10703 [2022-03-15 15:26:43,292 INFO L226 Difference]: Without dead ends: 10256 [2022-03-15 15:26:43,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:43,293 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 149 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:43,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 234 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:43,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10256 states. [2022-03-15 15:26:43,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10256 to 5143. [2022-03-15 15:26:43,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.753208868144691) internal successors, (24441), 5142 states have internal predecessors, (24441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:43,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24441 transitions. [2022-03-15 15:26:43,437 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24441 transitions. Word has length 29 [2022-03-15 15:26:43,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:43,437 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24441 transitions. [2022-03-15 15:26:43,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:43,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24441 transitions. [2022-03-15 15:26:43,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:43,448 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:43,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:43,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-15 15:26:43,449 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:43,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:43,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1204369403, now seen corresponding path program 77 times [2022-03-15 15:26:43,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:43,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275092564] [2022-03-15 15:26:43,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:43,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:43,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:43,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:43,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275092564] [2022-03-15 15:26:43,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275092564] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:43,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:43,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:43,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4551894] [2022-03-15 15:26:43,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:43,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:43,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:43,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:43,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:43,654 INFO L87 Difference]: Start difference. First operand 5143 states and 24441 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:43,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:43,864 INFO L93 Difference]: Finished difference Result 10843 states and 48394 transitions. [2022-03-15 15:26:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:43,865 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:43,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:43,897 INFO L225 Difference]: With dead ends: 10843 [2022-03-15 15:26:43,897 INFO L226 Difference]: Without dead ends: 10366 [2022-03-15 15:26:43,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:43,897 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:43,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 208 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:43,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10366 states. [2022-03-15 15:26:44,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10366 to 5191. [2022-03-15 15:26:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.743159922928709) internal successors, (24617), 5190 states have internal predecessors, (24617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:44,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24617 transitions. [2022-03-15 15:26:44,041 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24617 transitions. Word has length 29 [2022-03-15 15:26:44,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:44,041 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24617 transitions. [2022-03-15 15:26:44,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:44,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24617 transitions. [2022-03-15 15:26:44,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:44,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:44,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:44,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-15 15:26:44,052 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:44,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:44,052 INFO L85 PathProgramCache]: Analyzing trace with hash -2009535267, now seen corresponding path program 78 times [2022-03-15 15:26:44,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:44,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178709315] [2022-03-15 15:26:44,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:44,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:44,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:44,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:44,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178709315] [2022-03-15 15:26:44,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178709315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:44,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:44,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:44,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389918684] [2022-03-15 15:26:44,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:44,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:44,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:44,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:44,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:44,223 INFO L87 Difference]: Start difference. First operand 5191 states and 24617 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:44,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:44,439 INFO L93 Difference]: Finished difference Result 10781 states and 48077 transitions. [2022-03-15 15:26:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:44,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:44,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:44,476 INFO L225 Difference]: With dead ends: 10781 [2022-03-15 15:26:44,477 INFO L226 Difference]: Without dead ends: 10302 [2022-03-15 15:26:44,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:44,477 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:44,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 204 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:44,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10302 states. [2022-03-15 15:26:44,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10302 to 5127. [2022-03-15 15:26:44,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.7571205618415915) internal successors, (24385), 5126 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:44,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24385 transitions. [2022-03-15 15:26:44,648 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24385 transitions. Word has length 29 [2022-03-15 15:26:44,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:44,648 INFO L470 AbstractCegarLoop]: Abstraction has 5127 states and 24385 transitions. [2022-03-15 15:26:44,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:44,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24385 transitions. [2022-03-15 15:26:44,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:44,658 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:44,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:44,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-15 15:26:44,659 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:44,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:44,659 INFO L85 PathProgramCache]: Analyzing trace with hash -221817181, now seen corresponding path program 79 times [2022-03-15 15:26:44,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:44,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498699248] [2022-03-15 15:26:44,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:44,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:44,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:44,839 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:44,839 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498699248] [2022-03-15 15:26:44,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498699248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:44,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:44,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:44,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768822628] [2022-03-15 15:26:44,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:44,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:44,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:44,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:44,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:44,840 INFO L87 Difference]: Start difference. First operand 5127 states and 24385 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:45,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:45,026 INFO L93 Difference]: Finished difference Result 10895 states and 48684 transitions. [2022-03-15 15:26:45,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:45,026 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:45,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:45,061 INFO L225 Difference]: With dead ends: 10895 [2022-03-15 15:26:45,061 INFO L226 Difference]: Without dead ends: 10480 [2022-03-15 15:26:45,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:45,062 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 161 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:45,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 218 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:45,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10480 states. [2022-03-15 15:26:45,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10480 to 5199. [2022-03-15 15:26:45,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.74894190073105) internal successors, (24685), 5198 states have internal predecessors, (24685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:45,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24685 transitions. [2022-03-15 15:26:45,238 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24685 transitions. Word has length 29 [2022-03-15 15:26:45,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:45,238 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24685 transitions. [2022-03-15 15:26:45,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:45,239 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24685 transitions. [2022-03-15 15:26:45,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:45,250 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:45,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:45,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-15 15:26:45,250 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:45,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:45,251 INFO L85 PathProgramCache]: Analyzing trace with hash 7469829, now seen corresponding path program 80 times [2022-03-15 15:26:45,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:45,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214172210] [2022-03-15 15:26:45,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:45,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:45,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:45,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214172210] [2022-03-15 15:26:45,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214172210] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:45,431 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:45,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:45,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705771371] [2022-03-15 15:26:45,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:45,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:45,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:45,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:45,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:45,432 INFO L87 Difference]: Start difference. First operand 5199 states and 24685 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:45,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:45,612 INFO L93 Difference]: Finished difference Result 10957 states and 48905 transitions. [2022-03-15 15:26:45,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:45,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:45,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:45,647 INFO L225 Difference]: With dead ends: 10957 [2022-03-15 15:26:45,647 INFO L226 Difference]: Without dead ends: 10432 [2022-03-15 15:26:45,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:45,647 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:45,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 204 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:45,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10432 states. [2022-03-15 15:26:45,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10432 to 5151. [2022-03-15 15:26:45,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5150 states have (on average 4.754368932038835) internal successors, (24485), 5150 states have internal predecessors, (24485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:45,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 24485 transitions. [2022-03-15 15:26:45,823 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 24485 transitions. Word has length 29 [2022-03-15 15:26:45,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:45,823 INFO L470 AbstractCegarLoop]: Abstraction has 5151 states and 24485 transitions. [2022-03-15 15:26:45,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:45,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 24485 transitions. [2022-03-15 15:26:45,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:45,834 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:45,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:45,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-15 15:26:45,835 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:45,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:45,835 INFO L85 PathProgramCache]: Analyzing trace with hash 871153315, now seen corresponding path program 81 times [2022-03-15 15:26:45,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:45,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495223888] [2022-03-15 15:26:45,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:45,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:46,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:46,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:46,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495223888] [2022-03-15 15:26:46,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495223888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:46,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:46,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:46,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758185087] [2022-03-15 15:26:46,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:46,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:46,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:46,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:46,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:46,013 INFO L87 Difference]: Start difference. First operand 5151 states and 24485 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:46,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:46,221 INFO L93 Difference]: Finished difference Result 10893 states and 48655 transitions. [2022-03-15 15:26:46,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:46,221 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:46,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:46,251 INFO L225 Difference]: With dead ends: 10893 [2022-03-15 15:26:46,251 INFO L226 Difference]: Without dead ends: 10478 [2022-03-15 15:26:46,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:46,252 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 170 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:46,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 224 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:46,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2022-03-15 15:26:46,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 5199. [2022-03-15 15:26:46,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.744324740284725) internal successors, (24661), 5198 states have internal predecessors, (24661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:46,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24661 transitions. [2022-03-15 15:26:46,382 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24661 transitions. Word has length 29 [2022-03-15 15:26:46,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:46,382 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24661 transitions. [2022-03-15 15:26:46,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:46,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24661 transitions. [2022-03-15 15:26:46,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:46,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:46,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:46,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-15 15:26:46,392 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:46,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:46,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1413342755, now seen corresponding path program 82 times [2022-03-15 15:26:46,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:46,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251697998] [2022-03-15 15:26:46,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:46,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:46,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:46,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:46,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251697998] [2022-03-15 15:26:46,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251697998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:46,548 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:46,548 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:46,548 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281808528] [2022-03-15 15:26:46,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:46,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:46,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:46,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:46,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:46,548 INFO L87 Difference]: Start difference. First operand 5199 states and 24661 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:46,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:46,748 INFO L93 Difference]: Finished difference Result 10953 states and 48871 transitions. [2022-03-15 15:26:46,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:46,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:46,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:46,784 INFO L225 Difference]: With dead ends: 10953 [2022-03-15 15:26:46,784 INFO L226 Difference]: Without dead ends: 10430 [2022-03-15 15:26:46,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:46,784 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 148 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:46,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 208 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:46,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10430 states. [2022-03-15 15:26:46,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10430 to 5151. [2022-03-15 15:26:46,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5150 states have (on average 4.749708737864077) internal successors, (24461), 5150 states have internal predecessors, (24461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:46,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 24461 transitions. [2022-03-15 15:26:46,951 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 24461 transitions. Word has length 29 [2022-03-15 15:26:46,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:46,951 INFO L470 AbstractCegarLoop]: Abstraction has 5151 states and 24461 transitions. [2022-03-15 15:26:46,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:46,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 24461 transitions. [2022-03-15 15:26:46,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:46,962 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:46,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:46,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-15 15:26:46,962 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:46,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:46,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1370429957, now seen corresponding path program 83 times [2022-03-15 15:26:46,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:46,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426733748] [2022-03-15 15:26:46,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:46,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:47,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:47,164 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:47,164 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426733748] [2022-03-15 15:26:47,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426733748] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:47,164 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:47,164 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:47,164 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499689055] [2022-03-15 15:26:47,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:47,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:47,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:47,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:47,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:47,165 INFO L87 Difference]: Start difference. First operand 5151 states and 24461 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:47,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:47,409 INFO L93 Difference]: Finished difference Result 11047 states and 49316 transitions. [2022-03-15 15:26:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:47,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:47,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:47,446 INFO L225 Difference]: With dead ends: 11047 [2022-03-15 15:26:47,446 INFO L226 Difference]: Without dead ends: 10570 [2022-03-15 15:26:47,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:47,447 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 159 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:47,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 207 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:47,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10570 states. [2022-03-15 15:26:47,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10570 to 5229. [2022-03-15 15:26:47,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.734889058913542) internal successors, (24754), 5228 states have internal predecessors, (24754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:47,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24754 transitions. [2022-03-15 15:26:47,605 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24754 transitions. Word has length 29 [2022-03-15 15:26:47,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:47,606 INFO L470 AbstractCegarLoop]: Abstraction has 5229 states and 24754 transitions. [2022-03-15 15:26:47,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:47,606 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24754 transitions. [2022-03-15 15:26:47,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:47,616 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:47,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:47,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-15 15:26:47,617 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:47,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:47,617 INFO L85 PathProgramCache]: Analyzing trace with hash -21714589, now seen corresponding path program 84 times [2022-03-15 15:26:47,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:47,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309135274] [2022-03-15 15:26:47,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:47,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:47,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:47,817 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:47,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309135274] [2022-03-15 15:26:47,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309135274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:47,817 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:47,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:47,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27427309] [2022-03-15 15:26:47,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:47,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:47,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:47,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:47,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:47,818 INFO L87 Difference]: Start difference. First operand 5229 states and 24754 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:48,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:48,056 INFO L93 Difference]: Finished difference Result 11045 states and 49233 transitions. [2022-03-15 15:26:48,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:48,057 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:48,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:48,093 INFO L225 Difference]: With dead ends: 11045 [2022-03-15 15:26:48,094 INFO L226 Difference]: Without dead ends: 10468 [2022-03-15 15:26:48,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:48,094 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 154 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:48,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 218 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10468 states. [2022-03-15 15:26:48,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10468 to 5127. [2022-03-15 15:26:48,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.755559890753024) internal successors, (24377), 5126 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:48,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24377 transitions. [2022-03-15 15:26:48,283 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24377 transitions. Word has length 29 [2022-03-15 15:26:48,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:48,283 INFO L470 AbstractCegarLoop]: Abstraction has 5127 states and 24377 transitions. [2022-03-15 15:26:48,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:48,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24377 transitions. [2022-03-15 15:26:48,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:48,298 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:48,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:48,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-15 15:26:48,298 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:48,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:48,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1011203451, now seen corresponding path program 85 times [2022-03-15 15:26:48,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:48,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769726851] [2022-03-15 15:26:48,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:48,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:48,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769726851] [2022-03-15 15:26:48,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769726851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:48,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:48,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:48,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615766886] [2022-03-15 15:26:48,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:48,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:48,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:48,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:48,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:48,513 INFO L87 Difference]: Start difference. First operand 5127 states and 24377 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:48,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:48,748 INFO L93 Difference]: Finished difference Result 10701 states and 47787 transitions. [2022-03-15 15:26:48,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:48,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:48,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:48,785 INFO L225 Difference]: With dead ends: 10701 [2022-03-15 15:26:48,785 INFO L226 Difference]: Without dead ends: 10286 [2022-03-15 15:26:48,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:48,786 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 167 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:48,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 231 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:48,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10286 states. [2022-03-15 15:26:48,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10286 to 5175. [2022-03-15 15:26:48,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.748550444530344) internal successors, (24569), 5174 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:48,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24569 transitions. [2022-03-15 15:26:48,949 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24569 transitions. Word has length 29 [2022-03-15 15:26:48,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:48,950 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24569 transitions. [2022-03-15 15:26:48,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:48,950 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24569 transitions. [2022-03-15 15:26:48,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:48,960 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:48,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:48,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-15 15:26:48,960 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:48,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:48,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1825175843, now seen corresponding path program 86 times [2022-03-15 15:26:48,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:48,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668540865] [2022-03-15 15:26:48,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:48,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:49,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:49,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:49,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668540865] [2022-03-15 15:26:49,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668540865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:49,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:49,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:49,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249631190] [2022-03-15 15:26:49,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:49,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:49,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:49,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:49,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:49,145 INFO L87 Difference]: Start difference. First operand 5175 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:49,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:49,356 INFO L93 Difference]: Finished difference Result 10701 states and 47755 transitions. [2022-03-15 15:26:49,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:49,356 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:49,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:49,387 INFO L225 Difference]: With dead ends: 10701 [2022-03-15 15:26:49,387 INFO L226 Difference]: Without dead ends: 10254 [2022-03-15 15:26:49,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:49,388 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 167 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:49,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 214 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:49,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10254 states. [2022-03-15 15:26:49,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10254 to 5143. [2022-03-15 15:26:49,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.753208868144691) internal successors, (24441), 5142 states have internal predecessors, (24441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:49,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24441 transitions. [2022-03-15 15:26:49,673 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24441 transitions. Word has length 29 [2022-03-15 15:26:49,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:49,673 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24441 transitions. [2022-03-15 15:26:49,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:49,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24441 transitions. [2022-03-15 15:26:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:49,684 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:49,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:49,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-15 15:26:49,684 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:49,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:49,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1260702307, now seen corresponding path program 87 times [2022-03-15 15:26:49,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:49,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398098245] [2022-03-15 15:26:49,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:49,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:49,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:49,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:49,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398098245] [2022-03-15 15:26:49,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398098245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:49,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:49,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:49,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402008403] [2022-03-15 15:26:49,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:49,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:49,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:49,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:49,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:49,856 INFO L87 Difference]: Start difference. First operand 5143 states and 24441 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:50,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:50,082 INFO L93 Difference]: Finished difference Result 10777 states and 48115 transitions. [2022-03-15 15:26:50,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:50,083 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:50,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:50,125 INFO L225 Difference]: With dead ends: 10777 [2022-03-15 15:26:50,125 INFO L226 Difference]: Without dead ends: 10362 [2022-03-15 15:26:50,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:50,125 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 156 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:50,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 216 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:50,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10362 states. [2022-03-15 15:26:50,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10362 to 5191. [2022-03-15 15:26:50,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.743159922928709) internal successors, (24617), 5190 states have internal predecessors, (24617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:50,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24617 transitions. [2022-03-15 15:26:50,330 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24617 transitions. Word has length 29 [2022-03-15 15:26:50,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:50,330 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24617 transitions. [2022-03-15 15:26:50,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:50,330 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24617 transitions. [2022-03-15 15:26:50,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:50,341 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:50,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:50,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-15 15:26:50,341 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:50,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:50,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1172022779, now seen corresponding path program 88 times [2022-03-15 15:26:50,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:50,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638305823] [2022-03-15 15:26:50,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:50,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:50,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:50,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:50,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638305823] [2022-03-15 15:26:50,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638305823] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:50,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:50,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:50,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889527344] [2022-03-15 15:26:50,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:50,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:50,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:50,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:50,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:50,519 INFO L87 Difference]: Start difference. First operand 5191 states and 24617 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:50,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:50,707 INFO L93 Difference]: Finished difference Result 10837 states and 48331 transitions. [2022-03-15 15:26:50,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:50,707 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:50,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:50,742 INFO L225 Difference]: With dead ends: 10837 [2022-03-15 15:26:50,742 INFO L226 Difference]: Without dead ends: 10314 [2022-03-15 15:26:50,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:50,742 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:50,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 214 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:50,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10314 states. [2022-03-15 15:26:50,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10314 to 5143. [2022-03-15 15:26:50,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.750097238428627) internal successors, (24425), 5142 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:50,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24425 transitions. [2022-03-15 15:26:50,900 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24425 transitions. Word has length 29 [2022-03-15 15:26:50,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:50,900 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24425 transitions. [2022-03-15 15:26:50,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:50,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24425 transitions. [2022-03-15 15:26:50,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:50,911 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:50,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:50,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-15 15:26:50,911 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:50,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:50,912 INFO L85 PathProgramCache]: Analyzing trace with hash 301107195, now seen corresponding path program 89 times [2022-03-15 15:26:50,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:50,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369067729] [2022-03-15 15:26:50,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:50,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:51,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:51,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369067729] [2022-03-15 15:26:51,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369067729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:51,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:51,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:51,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638001016] [2022-03-15 15:26:51,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:51,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:51,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:51,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:51,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:51,101 INFO L87 Difference]: Start difference. First operand 5143 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:51,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:51,275 INFO L93 Difference]: Finished difference Result 10777 states and 48099 transitions. [2022-03-15 15:26:51,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:51,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:51,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:51,309 INFO L225 Difference]: With dead ends: 10777 [2022-03-15 15:26:51,309 INFO L226 Difference]: Without dead ends: 10362 [2022-03-15 15:26:51,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:51,309 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:51,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 208 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:51,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10362 states. [2022-03-15 15:26:51,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10362 to 5191. [2022-03-15 15:26:51,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.740077071290944) internal successors, (24601), 5190 states have internal predecessors, (24601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:51,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24601 transitions. [2022-03-15 15:26:51,466 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24601 transitions. Word has length 29 [2022-03-15 15:26:51,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:51,466 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24601 transitions. [2022-03-15 15:26:51,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:51,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24601 transitions. [2022-03-15 15:26:51,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:51,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:51,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:51,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-15 15:26:51,477 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:51,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:51,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1382169821, now seen corresponding path program 90 times [2022-03-15 15:26:51,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:51,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861674246] [2022-03-15 15:26:51,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:51,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:51,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:51,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:51,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861674246] [2022-03-15 15:26:51,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861674246] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:51,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:51,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:51,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253830853] [2022-03-15 15:26:51,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:51,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:51,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:51,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:51,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:51,602 INFO L87 Difference]: Start difference. First operand 5191 states and 24601 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:51,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:51,831 INFO L93 Difference]: Finished difference Result 10837 states and 48315 transitions. [2022-03-15 15:26:51,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:51,831 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:51,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:51,870 INFO L225 Difference]: With dead ends: 10837 [2022-03-15 15:26:51,870 INFO L226 Difference]: Without dead ends: 10298 [2022-03-15 15:26:51,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:51,871 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 140 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:51,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 253 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:51,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10298 states. [2022-03-15 15:26:52,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10298 to 5127. [2022-03-15 15:26:52,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.753999219664456) internal successors, (24369), 5126 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:52,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24369 transitions. [2022-03-15 15:26:52,055 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24369 transitions. Word has length 29 [2022-03-15 15:26:52,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:52,055 INFO L470 AbstractCegarLoop]: Abstraction has 5127 states and 24369 transitions. [2022-03-15 15:26:52,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:52,056 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24369 transitions. [2022-03-15 15:26:52,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:52,066 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:52,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:52,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-15 15:26:52,067 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:52,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:52,067 INFO L85 PathProgramCache]: Analyzing trace with hash 159503483, now seen corresponding path program 91 times [2022-03-15 15:26:52,067 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:52,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091991946] [2022-03-15 15:26:52,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:52,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:52,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:52,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091991946] [2022-03-15 15:26:52,233 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091991946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:52,233 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:52,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:52,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584538458] [2022-03-15 15:26:52,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:52,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:52,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:52,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:52,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:52,234 INFO L87 Difference]: Start difference. First operand 5127 states and 24369 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:52,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:52,448 INFO L93 Difference]: Finished difference Result 10957 states and 48937 transitions. [2022-03-15 15:26:52,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:52,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:52,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:52,481 INFO L225 Difference]: With dead ends: 10957 [2022-03-15 15:26:52,481 INFO L226 Difference]: Without dead ends: 10480 [2022-03-15 15:26:52,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:52,482 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:52,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 218 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:52,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10480 states. [2022-03-15 15:26:52,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10480 to 5199. [2022-03-15 15:26:52,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.7458637937668335) internal successors, (24669), 5198 states have internal predecessors, (24669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:52,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24669 transitions. [2022-03-15 15:26:52,624 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24669 transitions. Word has length 29 [2022-03-15 15:26:52,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:52,625 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24669 transitions. [2022-03-15 15:26:52,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:52,625 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24669 transitions. [2022-03-15 15:26:52,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:52,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:52,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:52,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-15 15:26:52,635 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:52,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:52,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1240566109, now seen corresponding path program 92 times [2022-03-15 15:26:52,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:52,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407940032] [2022-03-15 15:26:52,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:52,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:52,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:52,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:52,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407940032] [2022-03-15 15:26:52,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407940032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:52,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:52,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:52,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181702480] [2022-03-15 15:26:52,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:52,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:52,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:52,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:52,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:52,781 INFO L87 Difference]: Start difference. First operand 5199 states and 24669 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:52,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:52,961 INFO L93 Difference]: Finished difference Result 10895 states and 48620 transitions. [2022-03-15 15:26:52,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:52,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:52,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:52,993 INFO L225 Difference]: With dead ends: 10895 [2022-03-15 15:26:52,994 INFO L226 Difference]: Without dead ends: 10432 [2022-03-15 15:26:52,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:52,994 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 161 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:52,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 209 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:53,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10432 states. [2022-03-15 15:26:53,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10432 to 5151. [2022-03-15 15:26:53,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5150 states have (on average 4.75126213592233) internal successors, (24469), 5150 states have internal predecessors, (24469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:53,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 24469 transitions. [2022-03-15 15:26:53,138 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 24469 transitions. Word has length 29 [2022-03-15 15:26:53,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:53,138 INFO L470 AbstractCegarLoop]: Abstraction has 5151 states and 24469 transitions. [2022-03-15 15:26:53,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:53,138 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 24469 transitions. [2022-03-15 15:26:53,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:53,148 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:53,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:53,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-15 15:26:53,149 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:53,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:53,149 INFO L85 PathProgramCache]: Analyzing trace with hash -321398563, now seen corresponding path program 93 times [2022-03-15 15:26:53,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:53,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824219847] [2022-03-15 15:26:53,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:53,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:53,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:53,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:53,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824219847] [2022-03-15 15:26:53,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824219847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:53,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:53,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:53,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152043227] [2022-03-15 15:26:53,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:53,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:53,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:53,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:53,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:53,277 INFO L87 Difference]: Start difference. First operand 5151 states and 24469 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:53,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:53,447 INFO L93 Difference]: Finished difference Result 11047 states and 49324 transitions. [2022-03-15 15:26:53,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:53,448 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:53,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:53,482 INFO L225 Difference]: With dead ends: 11047 [2022-03-15 15:26:53,482 INFO L226 Difference]: Without dead ends: 10570 [2022-03-15 15:26:53,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:53,482 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:53,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 205 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:53,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10570 states. [2022-03-15 15:26:53,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10570 to 5229. [2022-03-15 15:26:53,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.736419280795715) internal successors, (24762), 5228 states have internal predecessors, (24762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:53,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24762 transitions. [2022-03-15 15:26:53,632 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24762 transitions. Word has length 29 [2022-03-15 15:26:53,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:53,632 INFO L470 AbstractCegarLoop]: Abstraction has 5229 states and 24762 transitions. [2022-03-15 15:26:53,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:53,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24762 transitions. [2022-03-15 15:26:53,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:53,642 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:53,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:53,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-15 15:26:53,642 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:53,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:53,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2009644835, now seen corresponding path program 94 times [2022-03-15 15:26:53,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:53,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251982541] [2022-03-15 15:26:53,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:53,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:53,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:53,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251982541] [2022-03-15 15:26:53,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251982541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:53,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:53,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:53,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590506410] [2022-03-15 15:26:53,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:53,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:53,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:53,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:53,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:53,868 INFO L87 Difference]: Start difference. First operand 5229 states and 24762 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:54,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:54,175 INFO L93 Difference]: Finished difference Result 11045 states and 49241 transitions. [2022-03-15 15:26:54,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:54,175 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:54,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:54,208 INFO L225 Difference]: With dead ends: 11045 [2022-03-15 15:26:54,208 INFO L226 Difference]: Without dead ends: 10492 [2022-03-15 15:26:54,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:54,208 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 161 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:54,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 197 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:54,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10492 states. [2022-03-15 15:26:54,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10492 to 5151. [2022-03-15 15:26:54,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 5150 states have (on average 4.746601941747572) internal successors, (24445), 5150 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 24445 transitions. [2022-03-15 15:26:54,354 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 24445 transitions. Word has length 29 [2022-03-15 15:26:54,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:54,354 INFO L470 AbstractCegarLoop]: Abstraction has 5151 states and 24445 transitions. [2022-03-15 15:26:54,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:54,354 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 24445 transitions. [2022-03-15 15:26:54,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:54,364 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:54,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:54,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-15 15:26:54,365 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:54,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:54,365 INFO L85 PathProgramCache]: Analyzing trace with hash 66606399, now seen corresponding path program 95 times [2022-03-15 15:26:54,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:54,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82686898] [2022-03-15 15:26:54,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:54,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:54,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:54,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:54,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82686898] [2022-03-15 15:26:54,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82686898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:54,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:54,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:54,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360053943] [2022-03-15 15:26:54,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:54,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:54,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:54,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:54,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:54,539 INFO L87 Difference]: Start difference. First operand 5151 states and 24445 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:54,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:54,804 INFO L93 Difference]: Finished difference Result 10893 states and 48615 transitions. [2022-03-15 15:26:54,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:54,805 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:54,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:54,839 INFO L225 Difference]: With dead ends: 10893 [2022-03-15 15:26:54,839 INFO L226 Difference]: Without dead ends: 10478 [2022-03-15 15:26:54,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:54,839 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 160 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:54,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 207 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:54,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2022-03-15 15:26:54,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 5199. [2022-03-15 15:26:54,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.736629472874182) internal successors, (24621), 5198 states have internal predecessors, (24621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:54,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24621 transitions. [2022-03-15 15:26:54,992 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24621 transitions. Word has length 29 [2022-03-15 15:26:54,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:54,992 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24621 transitions. [2022-03-15 15:26:54,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:54,993 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24621 transitions. [2022-03-15 15:26:55,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:55,003 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:55,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:55,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-15 15:26:55,003 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:55,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:55,003 INFO L85 PathProgramCache]: Analyzing trace with hash -780190563, now seen corresponding path program 96 times [2022-03-15 15:26:55,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:55,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816513008] [2022-03-15 15:26:55,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:55,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:55,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:55,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816513008] [2022-03-15 15:26:55,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816513008] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:55,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:55,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:55,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102258097] [2022-03-15 15:26:55,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:55,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:55,189 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:55,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:55,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:55,189 INFO L87 Difference]: Start difference. First operand 5199 states and 24621 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:55,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:55,433 INFO L93 Difference]: Finished difference Result 10953 states and 48831 transitions. [2022-03-15 15:26:55,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:55,434 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:55,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:55,463 INFO L225 Difference]: With dead ends: 10953 [2022-03-15 15:26:55,464 INFO L226 Difference]: Without dead ends: 10398 [2022-03-15 15:26:55,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:55,464 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:55,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 239 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:55,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2022-03-15 15:26:55,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 5119. [2022-03-15 15:26:55,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.756740914419695) internal successors, (24345), 5118 states have internal predecessors, (24345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:55,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24345 transitions. [2022-03-15 15:26:55,601 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24345 transitions. Word has length 29 [2022-03-15 15:26:55,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:55,601 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24345 transitions. [2022-03-15 15:26:55,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:55,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24345 transitions. [2022-03-15 15:26:55,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:55,611 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:55,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:55,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-15 15:26:55,612 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:55,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:55,612 INFO L85 PathProgramCache]: Analyzing trace with hash -544841445, now seen corresponding path program 97 times [2022-03-15 15:26:55,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:55,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561326422] [2022-03-15 15:26:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:55,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:55,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:55,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561326422] [2022-03-15 15:26:55,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561326422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:55,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:55,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:55,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815002990] [2022-03-15 15:26:55,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:55,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:55,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:55,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:55,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:55,791 INFO L87 Difference]: Start difference. First operand 5119 states and 24345 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:56,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:56,029 INFO L93 Difference]: Finished difference Result 11927 states and 53123 transitions. [2022-03-15 15:26:56,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:56,030 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:56,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:56,064 INFO L225 Difference]: With dead ends: 11927 [2022-03-15 15:26:56,064 INFO L226 Difference]: Without dead ends: 11385 [2022-03-15 15:26:56,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:56,064 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 177 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:56,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 215 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:56,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2022-03-15 15:26:56,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 5354. [2022-03-15 15:26:56,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 4.7278161778442) internal successors, (25308), 5353 states have internal predecessors, (25308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:56,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 25308 transitions. [2022-03-15 15:26:56,219 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 25308 transitions. Word has length 29 [2022-03-15 15:26:56,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:56,219 INFO L470 AbstractCegarLoop]: Abstraction has 5354 states and 25308 transitions. [2022-03-15 15:26:56,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:56,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 25308 transitions. [2022-03-15 15:26:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:56,230 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:56,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:56,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-15 15:26:56,230 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:56,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:56,230 INFO L85 PathProgramCache]: Analyzing trace with hash 536221181, now seen corresponding path program 98 times [2022-03-15 15:26:56,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:56,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395705560] [2022-03-15 15:26:56,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:56,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:56,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:56,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:56,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395705560] [2022-03-15 15:26:56,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395705560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:56,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:56,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:56,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4194930] [2022-03-15 15:26:56,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:56,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:56,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:56,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:56,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:56,414 INFO L87 Difference]: Start difference. First operand 5354 states and 25308 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:56,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:56,670 INFO L93 Difference]: Finished difference Result 11862 states and 52754 transitions. [2022-03-15 15:26:56,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:56,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:56,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:56,705 INFO L225 Difference]: With dead ends: 11862 [2022-03-15 15:26:56,706 INFO L226 Difference]: Without dead ends: 11242 [2022-03-15 15:26:56,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:56,706 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 173 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:56,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 247 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:56,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11242 states. [2022-03-15 15:26:56,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11242 to 5211. [2022-03-15 15:26:56,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.747216890595009) internal successors, (24733), 5210 states have internal predecessors, (24733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:56,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24733 transitions. [2022-03-15 15:26:56,863 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24733 transitions. Word has length 29 [2022-03-15 15:26:56,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:56,863 INFO L470 AbstractCegarLoop]: Abstraction has 5211 states and 24733 transitions. [2022-03-15 15:26:56,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:56,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24733 transitions. [2022-03-15 15:26:56,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:56,873 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:56,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:56,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-15 15:26:56,873 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:56,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:56,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1025743491, now seen corresponding path program 99 times [2022-03-15 15:26:56,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:56,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993700597] [2022-03-15 15:26:56,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:56,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:57,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:57,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:57,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993700597] [2022-03-15 15:26:57,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993700597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:57,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:57,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:57,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55418668] [2022-03-15 15:26:57,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:57,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:57,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:57,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:57,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:57,060 INFO L87 Difference]: Start difference. First operand 5211 states and 24733 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:57,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:57,380 INFO L93 Difference]: Finished difference Result 11802 states and 52536 transitions. [2022-03-15 15:26:57,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:57,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:57,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:57,424 INFO L225 Difference]: With dead ends: 11802 [2022-03-15 15:26:57,424 INFO L226 Difference]: Without dead ends: 11260 [2022-03-15 15:26:57,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:57,439 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 182 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:57,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 195 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:57,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11260 states. [2022-03-15 15:26:57,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11260 to 5291. [2022-03-15 15:26:57,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 4.729867674858223) internal successors, (25021), 5290 states have internal predecessors, (25021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:57,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 25021 transitions. [2022-03-15 15:26:57,612 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 25021 transitions. Word has length 29 [2022-03-15 15:26:57,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:57,612 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 25021 transitions. [2022-03-15 15:26:57,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:57,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 25021 transitions. [2022-03-15 15:26:57,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:57,623 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:57,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:57,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-15 15:26:57,624 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:57,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:57,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1580977533, now seen corresponding path program 100 times [2022-03-15 15:26:57,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:57,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886752197] [2022-03-15 15:26:57,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:57,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:57,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:57,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:57,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886752197] [2022-03-15 15:26:57,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886752197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:57,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:57,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:57,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377950277] [2022-03-15 15:26:57,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:57,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:57,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:57,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:57,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:57,843 INFO L87 Difference]: Start difference. First operand 5291 states and 25021 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:58,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:58,064 INFO L93 Difference]: Finished difference Result 11675 states and 51929 transitions. [2022-03-15 15:26:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:58,064 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:58,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:58,101 INFO L225 Difference]: With dead ends: 11675 [2022-03-15 15:26:58,101 INFO L226 Difference]: Without dead ends: 11180 [2022-03-15 15:26:58,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:58,101 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 163 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:58,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 211 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:58,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11180 states. [2022-03-15 15:26:58,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11180 to 5211. [2022-03-15 15:26:58,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.739539347408829) internal successors, (24693), 5210 states have internal predecessors, (24693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:58,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24693 transitions. [2022-03-15 15:26:58,281 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24693 transitions. Word has length 29 [2022-03-15 15:26:58,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:58,281 INFO L470 AbstractCegarLoop]: Abstraction has 5211 states and 24693 transitions. [2022-03-15 15:26:58,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:58,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24693 transitions. [2022-03-15 15:26:58,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:58,295 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:58,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:58,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-15 15:26:58,297 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:58,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:58,297 INFO L85 PathProgramCache]: Analyzing trace with hash -637738529, now seen corresponding path program 101 times [2022-03-15 15:26:58,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:58,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059771292] [2022-03-15 15:26:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:58,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:58,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:58,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059771292] [2022-03-15 15:26:58,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059771292] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:58,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:58,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:58,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425265337] [2022-03-15 15:26:58,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:58,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:58,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:58,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:58,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:58,541 INFO L87 Difference]: Start difference. First operand 5211 states and 24693 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:58,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:58,804 INFO L93 Difference]: Finished difference Result 11640 states and 51836 transitions. [2022-03-15 15:26:58,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:58,804 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:58,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:58,838 INFO L225 Difference]: With dead ends: 11640 [2022-03-15 15:26:58,839 INFO L226 Difference]: Without dead ends: 11163 [2022-03-15 15:26:58,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:58,839 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 158 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:58,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 237 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:26:58,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11163 states. [2022-03-15 15:26:58,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11163 to 5259. [2022-03-15 15:26:58,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7297451502472425) internal successors, (24869), 5258 states have internal predecessors, (24869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:58,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24869 transitions. [2022-03-15 15:26:58,993 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24869 transitions. Word has length 29 [2022-03-15 15:26:58,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:58,994 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 24869 transitions. [2022-03-15 15:26:58,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:58,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24869 transitions. [2022-03-15 15:26:59,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:59,004 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:59,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:59,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-15 15:26:59,004 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:59,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:59,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1484535491, now seen corresponding path program 102 times [2022-03-15 15:26:59,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:59,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884253718] [2022-03-15 15:26:59,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:59,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:59,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:59,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:59,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884253718] [2022-03-15 15:26:59,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884253718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:59,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:59,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:59,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769444448] [2022-03-15 15:26:59,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:59,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:59,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:59,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:59,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:59,174 INFO L87 Difference]: Start difference. First operand 5259 states and 24869 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:59,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:59,377 INFO L93 Difference]: Finished difference Result 11578 states and 51519 transitions. [2022-03-15 15:26:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:59,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:59,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:59,411 INFO L225 Difference]: With dead ends: 11578 [2022-03-15 15:26:59,411 INFO L226 Difference]: Without dead ends: 11059 [2022-03-15 15:26:59,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:59,412 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 159 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:59,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 211 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:59,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11059 states. [2022-03-15 15:26:59,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11059 to 5155. [2022-03-15 15:26:59,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.752231276678308) internal successors, (24493), 5154 states have internal predecessors, (24493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:59,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24493 transitions. [2022-03-15 15:26:59,560 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24493 transitions. Word has length 29 [2022-03-15 15:26:59,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:26:59,560 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24493 transitions. [2022-03-15 15:26:59,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:59,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24493 transitions. [2022-03-15 15:26:59,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:26:59,570 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:26:59,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:26:59,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-15 15:26:59,570 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:26:59,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:26:59,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1164760317, now seen corresponding path program 103 times [2022-03-15 15:26:59,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:26:59,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255552636] [2022-03-15 15:26:59,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:26:59,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:26:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:26:59,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:26:59,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:26:59,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255552636] [2022-03-15 15:26:59,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255552636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:26:59,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:26:59,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:26:59,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719586179] [2022-03-15 15:26:59,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:26:59,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:26:59,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:26:59,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:26:59,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:26:59,720 INFO L87 Difference]: Start difference. First operand 5155 states and 24493 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:26:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:26:59,913 INFO L93 Difference]: Finished difference Result 12078 states and 53782 transitions. [2022-03-15 15:26:59,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:26:59,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:26:59,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:26:59,948 INFO L225 Difference]: With dead ends: 12078 [2022-03-15 15:26:59,948 INFO L226 Difference]: Without dead ends: 11536 [2022-03-15 15:26:59,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:26:59,949 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 190 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:26:59,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 208 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:26:59,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11536 states. [2022-03-15 15:27:00,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11536 to 5385. [2022-03-15 15:27:00,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5385 states, 5384 states have (on average 4.719353640416047) internal successors, (25409), 5384 states have internal predecessors, (25409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:00,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5385 states to 5385 states and 25409 transitions. [2022-03-15 15:27:00,112 INFO L78 Accepts]: Start accepts. Automaton has 5385 states and 25409 transitions. Word has length 29 [2022-03-15 15:27:00,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:00,113 INFO L470 AbstractCegarLoop]: Abstraction has 5385 states and 25409 transitions. [2022-03-15 15:27:00,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:00,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5385 states and 25409 transitions. [2022-03-15 15:27:00,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:00,123 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:00,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:00,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-15 15:27:00,124 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:00,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:00,124 INFO L85 PathProgramCache]: Analyzing trace with hash -2049144353, now seen corresponding path program 104 times [2022-03-15 15:27:00,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:00,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964764184] [2022-03-15 15:27:00,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:00,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:00,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:00,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964764184] [2022-03-15 15:27:00,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964764184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:00,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:00,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:00,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067469185] [2022-03-15 15:27:00,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:00,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:00,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:00,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:00,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:00,271 INFO L87 Difference]: Start difference. First operand 5385 states and 25409 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:00,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:00,470 INFO L93 Difference]: Finished difference Result 12013 states and 53413 transitions. [2022-03-15 15:27:00,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:00,470 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:00,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:00,505 INFO L225 Difference]: With dead ends: 12013 [2022-03-15 15:27:00,505 INFO L226 Difference]: Without dead ends: 11393 [2022-03-15 15:27:00,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:00,505 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 176 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:00,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 202 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:00,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11393 states. [2022-03-15 15:27:00,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11393 to 5242. [2022-03-15 15:27:00,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 5241 states have (on average 4.735546651402404) internal successors, (24819), 5241 states have internal predecessors, (24819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:00,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 24819 transitions. [2022-03-15 15:27:00,657 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 24819 transitions. Word has length 29 [2022-03-15 15:27:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:00,657 INFO L470 AbstractCegarLoop]: Abstraction has 5242 states and 24819 transitions. [2022-03-15 15:27:00,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 24819 transitions. [2022-03-15 15:27:00,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:00,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:00,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:00,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-15 15:27:00,668 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:00,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:00,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2037236483, now seen corresponding path program 105 times [2022-03-15 15:27:00,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:00,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431462870] [2022-03-15 15:27:00,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:00,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:00,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:00,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431462870] [2022-03-15 15:27:00,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431462870] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:00,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:00,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:00,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770998799] [2022-03-15 15:27:00,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:00,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:00,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:00,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:00,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:00,853 INFO L87 Difference]: Start difference. First operand 5242 states and 24819 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:01,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:01,113 INFO L93 Difference]: Finished difference Result 12043 states and 53591 transitions. [2022-03-15 15:27:01,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:01,113 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:01,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:01,152 INFO L225 Difference]: With dead ends: 12043 [2022-03-15 15:27:01,153 INFO L226 Difference]: Without dead ends: 11501 [2022-03-15 15:27:01,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:01,153 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 173 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:01,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 225 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:27:01,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11501 states. [2022-03-15 15:27:01,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11501 to 5352. [2022-03-15 15:27:01,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 4.713885255092506) internal successors, (25224), 5351 states have internal predecessors, (25224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:01,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 25224 transitions. [2022-03-15 15:27:01,329 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 25224 transitions. Word has length 29 [2022-03-15 15:27:01,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:01,330 INFO L470 AbstractCegarLoop]: Abstraction has 5352 states and 25224 transitions. [2022-03-15 15:27:01,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:01,330 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 25224 transitions. [2022-03-15 15:27:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:01,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:01,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:01,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-15 15:27:01,346 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:01,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1987668739, now seen corresponding path program 106 times [2022-03-15 15:27:01,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:01,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026331443] [2022-03-15 15:27:01,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:01,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:01,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:01,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:01,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026331443] [2022-03-15 15:27:01,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026331443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:01,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:01,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:01,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058994338] [2022-03-15 15:27:01,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:01,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:01,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:01,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:01,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:01,552 INFO L87 Difference]: Start difference. First operand 5352 states and 25224 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:01,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:01,800 INFO L93 Difference]: Finished difference Result 11976 states and 53218 transitions. [2022-03-15 15:27:01,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:01,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:01,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:01,838 INFO L225 Difference]: With dead ends: 11976 [2022-03-15 15:27:01,838 INFO L226 Difference]: Without dead ends: 11391 [2022-03-15 15:27:01,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:01,839 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 175 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:01,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 217 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:01,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11391 states. [2022-03-15 15:27:01,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11391 to 5242. [2022-03-15 15:27:02,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5242 states, 5241 states have (on average 4.7250524709025) internal successors, (24764), 5241 states have internal predecessors, (24764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:02,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 24764 transitions. [2022-03-15 15:27:02,021 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 24764 transitions. Word has length 29 [2022-03-15 15:27:02,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:02,021 INFO L470 AbstractCegarLoop]: Abstraction has 5242 states and 24764 transitions. [2022-03-15 15:27:02,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:02,021 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 24764 transitions. [2022-03-15 15:27:02,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:02,032 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:02,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:02,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-15 15:27:02,035 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:02,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:02,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1649231521, now seen corresponding path program 107 times [2022-03-15 15:27:02,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:02,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577742645] [2022-03-15 15:27:02,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:02,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:02,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:02,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577742645] [2022-03-15 15:27:02,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577742645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:02,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:02,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:02,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459840240] [2022-03-15 15:27:02,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:02,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:02,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:02,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:02,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:02,218 INFO L87 Difference]: Start difference. First operand 5242 states and 24764 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:02,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:02,439 INFO L93 Difference]: Finished difference Result 11881 states and 52876 transitions. [2022-03-15 15:27:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:02,439 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:02,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:02,475 INFO L225 Difference]: With dead ends: 11881 [2022-03-15 15:27:02,475 INFO L226 Difference]: Without dead ends: 11404 [2022-03-15 15:27:02,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:02,475 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 159 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:02,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 230 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:02,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11404 states. [2022-03-15 15:27:02,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11404 to 5320. [2022-03-15 15:27:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 5319 states have (on average 4.710847903741305) internal successors, (25057), 5319 states have internal predecessors, (25057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:02,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 25057 transitions. [2022-03-15 15:27:02,628 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 25057 transitions. Word has length 29 [2022-03-15 15:27:02,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:02,628 INFO L470 AbstractCegarLoop]: Abstraction has 5320 states and 25057 transitions. [2022-03-15 15:27:02,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:02,629 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 25057 transitions. [2022-03-15 15:27:02,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:02,639 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:02,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:02,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-15 15:27:02,639 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:02,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:02,639 INFO L85 PathProgramCache]: Analyzing trace with hash 529656125, now seen corresponding path program 108 times [2022-03-15 15:27:02,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:02,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644966030] [2022-03-15 15:27:02,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:02,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:02,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:02,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:02,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644966030] [2022-03-15 15:27:02,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644966030] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:02,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:02,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:02,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604608001] [2022-03-15 15:27:02,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:02,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:02,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:02,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:02,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:02,867 INFO L87 Difference]: Start difference. First operand 5320 states and 25057 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:03,114 INFO L93 Difference]: Finished difference Result 11879 states and 52793 transitions. [2022-03-15 15:27:03,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:03,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:03,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:03,153 INFO L225 Difference]: With dead ends: 11879 [2022-03-15 15:27:03,153 INFO L226 Difference]: Without dead ends: 11239 [2022-03-15 15:27:03,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:03,153 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 167 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:03,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 234 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:03,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11239 states. [2022-03-15 15:27:03,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11239 to 5155. [2022-03-15 15:27:03,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.745246410554909) internal successors, (24457), 5154 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:03,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24457 transitions. [2022-03-15 15:27:03,318 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24457 transitions. Word has length 29 [2022-03-15 15:27:03,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:03,318 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24457 transitions. [2022-03-15 15:27:03,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:03,318 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24457 transitions. [2022-03-15 15:27:03,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:03,329 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:03,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:03,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-15 15:27:03,329 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:03,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:03,329 INFO L85 PathProgramCache]: Analyzing trace with hash 375374047, now seen corresponding path program 109 times [2022-03-15 15:27:03,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:03,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789987823] [2022-03-15 15:27:03,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:03,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:03,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:03,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:03,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789987823] [2022-03-15 15:27:03,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789987823] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:03,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:03,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:03,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331312916] [2022-03-15 15:27:03,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:03,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:03,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:03,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:03,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:03,503 INFO L87 Difference]: Start difference. First operand 5155 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:03,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:03,703 INFO L93 Difference]: Finished difference Result 11751 states and 52344 transitions. [2022-03-15 15:27:03,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:03,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:03,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:03,740 INFO L225 Difference]: With dead ends: 11751 [2022-03-15 15:27:03,740 INFO L226 Difference]: Without dead ends: 11209 [2022-03-15 15:27:03,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:03,741 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 149 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:03,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 233 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:03,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2022-03-15 15:27:03,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 5275. [2022-03-15 15:27:03,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.730565036025787) internal successors, (24949), 5274 states have internal predecessors, (24949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24949 transitions. [2022-03-15 15:27:03,902 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24949 transitions. Word has length 29 [2022-03-15 15:27:03,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:03,902 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 24949 transitions. [2022-03-15 15:27:03,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:03,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24949 transitions. [2022-03-15 15:27:03,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:03,913 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:03,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:03,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-15 15:27:03,913 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:03,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:03,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1312872225, now seen corresponding path program 110 times [2022-03-15 15:27:03,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:03,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043048318] [2022-03-15 15:27:03,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:03,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:04,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:04,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043048318] [2022-03-15 15:27:04,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043048318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:04,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:04,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:04,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367927264] [2022-03-15 15:27:04,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:04,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:04,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:04,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:04,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:04,098 INFO L87 Difference]: Start difference. First operand 5275 states and 24949 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:04,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:04,270 INFO L93 Difference]: Finished difference Result 11624 states and 51737 transitions. [2022-03-15 15:27:04,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:04,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:04,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:04,305 INFO L225 Difference]: With dead ends: 11624 [2022-03-15 15:27:04,305 INFO L226 Difference]: Without dead ends: 11129 [2022-03-15 15:27:04,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:04,305 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 176 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:04,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 198 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:04,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11129 states. [2022-03-15 15:27:04,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11129 to 5195. [2022-03-15 15:27:04,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.7402772429726605) internal successors, (24621), 5194 states have internal predecessors, (24621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:04,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24621 transitions. [2022-03-15 15:27:04,461 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24621 transitions. Word has length 29 [2022-03-15 15:27:04,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:04,461 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24621 transitions. [2022-03-15 15:27:04,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:04,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24621 transitions. [2022-03-15 15:27:04,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:04,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:04,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:04,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-15 15:27:04,471 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:04,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:04,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1647687491, now seen corresponding path program 111 times [2022-03-15 15:27:04,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:04,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113971174] [2022-03-15 15:27:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:04,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:04,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:04,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113971174] [2022-03-15 15:27:04,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113971174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:04,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:04,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:04,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105019758] [2022-03-15 15:27:04,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:04,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:04,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:04,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:04,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:04,692 INFO L87 Difference]: Start difference. First operand 5195 states and 24621 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:04,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:04,887 INFO L93 Difference]: Finished difference Result 11841 states and 52715 transitions. [2022-03-15 15:27:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:04,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:04,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:05,025 INFO L225 Difference]: With dead ends: 11841 [2022-03-15 15:27:05,026 INFO L226 Difference]: Without dead ends: 11299 [2022-03-15 15:27:05,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:05,026 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 171 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:05,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 199 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:05,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11299 states. [2022-03-15 15:27:05,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11299 to 5305. [2022-03-15 15:27:05,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5305 states, 5304 states have (on average 4.718325791855204) internal successors, (25026), 5304 states have internal predecessors, (25026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:05,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5305 states to 5305 states and 25026 transitions. [2022-03-15 15:27:05,165 INFO L78 Accepts]: Start accepts. Automaton has 5305 states and 25026 transitions. Word has length 29 [2022-03-15 15:27:05,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:05,165 INFO L470 AbstractCegarLoop]: Abstraction has 5305 states and 25026 transitions. [2022-03-15 15:27:05,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:05,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5305 states and 25026 transitions. [2022-03-15 15:27:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:05,176 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:05,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:05,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-15 15:27:05,176 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:05,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:05,177 INFO L85 PathProgramCache]: Analyzing trace with hash -278066977, now seen corresponding path program 112 times [2022-03-15 15:27:05,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:05,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665359572] [2022-03-15 15:27:05,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:05,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:05,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:05,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:05,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665359572] [2022-03-15 15:27:05,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665359572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:05,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:05,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:05,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728956703] [2022-03-15 15:27:05,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:05,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:05,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:05,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:05,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:05,352 INFO L87 Difference]: Start difference. First operand 5305 states and 25026 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:05,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:05,604 INFO L93 Difference]: Finished difference Result 11774 states and 52342 transitions. [2022-03-15 15:27:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:05,605 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:05,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:05,641 INFO L225 Difference]: With dead ends: 11774 [2022-03-15 15:27:05,641 INFO L226 Difference]: Without dead ends: 11189 [2022-03-15 15:27:05,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:05,641 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 157 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:05,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 240 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:27:05,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11189 states. [2022-03-15 15:27:05,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11189 to 5195. [2022-03-15 15:27:05,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.73257604928764) internal successors, (24581), 5194 states have internal predecessors, (24581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:05,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24581 transitions. [2022-03-15 15:27:05,803 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24581 transitions. Word has length 29 [2022-03-15 15:27:05,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:05,803 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24581 transitions. [2022-03-15 15:27:05,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:05,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24581 transitions. [2022-03-15 15:27:05,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:05,814 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:05,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:05,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-15 15:27:05,814 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:05,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:05,814 INFO L85 PathProgramCache]: Analyzing trace with hash -922910497, now seen corresponding path program 113 times [2022-03-15 15:27:05,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:05,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397942161] [2022-03-15 15:27:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:05,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:05,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:05,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:05,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397942161] [2022-03-15 15:27:05,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397942161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:05,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:05,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:05,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231299018] [2022-03-15 15:27:05,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:05,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:05,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:05,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:05,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:05,972 INFO L87 Difference]: Start difference. First operand 5195 states and 24581 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:06,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:06,190 INFO L93 Difference]: Finished difference Result 11525 states and 51330 transitions. [2022-03-15 15:27:06,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:06,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:06,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:06,227 INFO L225 Difference]: With dead ends: 11525 [2022-03-15 15:27:06,227 INFO L226 Difference]: Without dead ends: 11110 [2022-03-15 15:27:06,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:06,227 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:06,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 214 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:06,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11110 states. [2022-03-15 15:27:06,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11110 to 5243. [2022-03-15 15:27:06,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.722815719191148) internal successors, (24757), 5242 states have internal predecessors, (24757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:06,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24757 transitions. [2022-03-15 15:27:06,400 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24757 transitions. Word has length 29 [2022-03-15 15:27:06,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:06,401 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 24757 transitions. [2022-03-15 15:27:06,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:06,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24757 transitions. [2022-03-15 15:27:06,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:06,411 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:06,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:06,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-15 15:27:06,411 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:06,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:06,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1769707459, now seen corresponding path program 114 times [2022-03-15 15:27:06,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:06,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292731741] [2022-03-15 15:27:06,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:06,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:06,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:06,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:06,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292731741] [2022-03-15 15:27:06,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292731741] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:06,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:06,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:06,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232386825] [2022-03-15 15:27:06,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:06,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:06,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:06,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:06,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:06,570 INFO L87 Difference]: Start difference. First operand 5243 states and 24757 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:06,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:06,818 INFO L93 Difference]: Finished difference Result 11585 states and 51546 transitions. [2022-03-15 15:27:06,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:06,818 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:06,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:06,857 INFO L225 Difference]: With dead ends: 11585 [2022-03-15 15:27:06,857 INFO L226 Difference]: Without dead ends: 11022 [2022-03-15 15:27:06,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:06,858 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 146 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:06,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 234 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:06,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11022 states. [2022-03-15 15:27:06,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11022 to 5155. [2022-03-15 15:27:07,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.741365929375243) internal successors, (24437), 5154 states have internal predecessors, (24437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:07,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24437 transitions. [2022-03-15 15:27:07,023 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24437 transitions. Word has length 29 [2022-03-15 15:27:07,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:07,023 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24437 transitions. [2022-03-15 15:27:07,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:07,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24437 transitions. [2022-03-15 15:27:07,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:07,034 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:07,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:07,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-15 15:27:07,034 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:07,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:07,034 INFO L85 PathProgramCache]: Analyzing trace with hash 454894785, now seen corresponding path program 115 times [2022-03-15 15:27:07,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:07,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430761620] [2022-03-15 15:27:07,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:07,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:07,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:07,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:07,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430761620] [2022-03-15 15:27:07,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430761620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:07,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:07,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:07,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758073134] [2022-03-15 15:27:07,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:07,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:07,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:07,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:07,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:07,174 INFO L87 Difference]: Start difference. First operand 5155 states and 24437 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:07,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:07,392 INFO L93 Difference]: Finished difference Result 11444 states and 51038 transitions. [2022-03-15 15:27:07,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:07,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:07,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:07,429 INFO L225 Difference]: With dead ends: 11444 [2022-03-15 15:27:07,429 INFO L226 Difference]: Without dead ends: 10967 [2022-03-15 15:27:07,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:07,429 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 159 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:07,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 219 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10967 states. [2022-03-15 15:27:07,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10967 to 5227. [2022-03-15 15:27:07,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 4.733448143895905) internal successors, (24737), 5226 states have internal predecessors, (24737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:07,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 24737 transitions. [2022-03-15 15:27:07,594 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 24737 transitions. Word has length 29 [2022-03-15 15:27:07,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:07,594 INFO L470 AbstractCegarLoop]: Abstraction has 5227 states and 24737 transitions. [2022-03-15 15:27:07,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:07,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 24737 transitions. [2022-03-15 15:27:07,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:07,604 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:07,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:07,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-15 15:27:07,605 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:07,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:07,605 INFO L85 PathProgramCache]: Analyzing trace with hash -391902177, now seen corresponding path program 116 times [2022-03-15 15:27:07,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:07,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106142183] [2022-03-15 15:27:07,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:07,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:07,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:07,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106142183] [2022-03-15 15:27:07,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106142183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:07,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:07,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:07,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802536371] [2022-03-15 15:27:07,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:07,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:07,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:07,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:07,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:07,775 INFO L87 Difference]: Start difference. First operand 5227 states and 24737 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:07,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:07,960 INFO L93 Difference]: Finished difference Result 11382 states and 50721 transitions. [2022-03-15 15:27:07,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:07,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:07,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:07,993 INFO L225 Difference]: With dead ends: 11382 [2022-03-15 15:27:07,993 INFO L226 Difference]: Without dead ends: 10919 [2022-03-15 15:27:07,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:07,994 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:07,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 232 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:08,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10919 states. [2022-03-15 15:27:08,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10919 to 5179. [2022-03-15 15:27:08,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.738702201622248) internal successors, (24537), 5178 states have internal predecessors, (24537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:08,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24537 transitions. [2022-03-15 15:27:08,149 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24537 transitions. Word has length 29 [2022-03-15 15:27:08,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:08,149 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24537 transitions. [2022-03-15 15:27:08,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:08,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24537 transitions. [2022-03-15 15:27:08,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:08,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:08,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:08,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-15 15:27:08,159 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:08,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:08,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1568166753, now seen corresponding path program 117 times [2022-03-15 15:27:08,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:08,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839023721] [2022-03-15 15:27:08,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:08,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:08,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:08,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:08,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839023721] [2022-03-15 15:27:08,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839023721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:08,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:08,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:08,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338880138] [2022-03-15 15:27:08,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:08,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:08,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:08,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:08,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:08,299 INFO L87 Difference]: Start difference. First operand 5179 states and 24537 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:08,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:08,500 INFO L93 Difference]: Finished difference Result 11534 states and 51425 transitions. [2022-03-15 15:27:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:08,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:08,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:08,537 INFO L225 Difference]: With dead ends: 11534 [2022-03-15 15:27:08,537 INFO L226 Difference]: Without dead ends: 11057 [2022-03-15 15:27:08,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:08,537 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 174 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:08,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 198 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:08,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11057 states. [2022-03-15 15:27:08,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11057 to 5257. [2022-03-15 15:27:08,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 4.724124809741248) internal successors, (24830), 5256 states have internal predecessors, (24830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:08,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 24830 transitions. [2022-03-15 15:27:08,699 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 24830 transitions. Word has length 29 [2022-03-15 15:27:08,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:08,699 INFO L470 AbstractCegarLoop]: Abstraction has 5257 states and 24830 transitions. [2022-03-15 15:27:08,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:08,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 24830 transitions. [2022-03-15 15:27:08,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:08,709 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:08,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:08,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-15 15:27:08,710 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:08,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:08,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1930773663, now seen corresponding path program 118 times [2022-03-15 15:27:08,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:08,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48360302] [2022-03-15 15:27:08,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:08,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:08,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:08,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:08,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48360302] [2022-03-15 15:27:08,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48360302] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:08,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:08,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:08,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507515150] [2022-03-15 15:27:08,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:08,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:08,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:08,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:08,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:08,880 INFO L87 Difference]: Start difference. First operand 5257 states and 24830 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:09,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:09,146 INFO L93 Difference]: Finished difference Result 11532 states and 51342 transitions. [2022-03-15 15:27:09,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:09,146 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:09,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:09,181 INFO L225 Difference]: With dead ends: 11532 [2022-03-15 15:27:09,181 INFO L226 Difference]: Without dead ends: 10979 [2022-03-15 15:27:09,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:09,181 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 156 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:09,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 227 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:27:09,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10979 states. [2022-03-15 15:27:09,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10979 to 5179. [2022-03-15 15:27:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.734067207415991) internal successors, (24513), 5178 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:09,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24513 transitions. [2022-03-15 15:27:09,341 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24513 transitions. Word has length 29 [2022-03-15 15:27:09,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:09,341 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24513 transitions. [2022-03-15 15:27:09,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:09,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24513 transitions. [2022-03-15 15:27:09,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:09,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:09,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:09,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-15 15:27:09,351 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:09,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:09,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1870052477, now seen corresponding path program 119 times [2022-03-15 15:27:09,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:09,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76679395] [2022-03-15 15:27:09,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:09,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:09,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:09,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76679395] [2022-03-15 15:27:09,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76679395] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:09,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:09,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:09,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582914917] [2022-03-15 15:27:09,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:09,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:09,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:09,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:09,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:09,535 INFO L87 Difference]: Start difference. First operand 5179 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:09,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:09,752 INFO L93 Difference]: Finished difference Result 11380 states and 50716 transitions. [2022-03-15 15:27:09,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:09,752 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:09,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:09,787 INFO L225 Difference]: With dead ends: 11380 [2022-03-15 15:27:09,787 INFO L226 Difference]: Without dead ends: 10965 [2022-03-15 15:27:09,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:09,788 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 164 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:09,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 205 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:09,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10965 states. [2022-03-15 15:27:09,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10965 to 5227. [2022-03-15 15:27:09,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 4.724263298890165) internal successors, (24689), 5226 states have internal predecessors, (24689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:09,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 24689 transitions. [2022-03-15 15:27:09,946 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 24689 transitions. Word has length 29 [2022-03-15 15:27:09,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:09,946 INFO L470 AbstractCegarLoop]: Abstraction has 5227 states and 24689 transitions. [2022-03-15 15:27:09,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:09,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 24689 transitions. [2022-03-15 15:27:09,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:09,956 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:09,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:09,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-15 15:27:09,957 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:09,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:09,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1389150431, now seen corresponding path program 120 times [2022-03-15 15:27:09,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:09,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382253421] [2022-03-15 15:27:09,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:09,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:10,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:10,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:10,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382253421] [2022-03-15 15:27:10,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382253421] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:10,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:10,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:10,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730452460] [2022-03-15 15:27:10,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:10,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:10,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:10,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:10,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:10,098 INFO L87 Difference]: Start difference. First operand 5227 states and 24689 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:10,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:10,295 INFO L93 Difference]: Finished difference Result 11440 states and 50932 transitions. [2022-03-15 15:27:10,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:10,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:10,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:10,330 INFO L225 Difference]: With dead ends: 11440 [2022-03-15 15:27:10,330 INFO L226 Difference]: Without dead ends: 10841 [2022-03-15 15:27:10,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:10,331 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 167 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:10,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 220 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10841 states. [2022-03-15 15:27:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10841 to 5103. [2022-03-15 15:27:10,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5102 states have (on average 4.7614660917287335) internal successors, (24293), 5102 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:10,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 24293 transitions. [2022-03-15 15:27:10,487 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 24293 transitions. Word has length 29 [2022-03-15 15:27:10,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:10,487 INFO L470 AbstractCegarLoop]: Abstraction has 5103 states and 24293 transitions. [2022-03-15 15:27:10,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:10,487 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 24293 transitions. [2022-03-15 15:27:10,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:10,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:10,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:10,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-15 15:27:10,497 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:10,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:10,497 INFO L85 PathProgramCache]: Analyzing trace with hash 187299075, now seen corresponding path program 121 times [2022-03-15 15:27:10,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:10,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078225941] [2022-03-15 15:27:10,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:10,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:10,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:10,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:10,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078225941] [2022-03-15 15:27:10,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078225941] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:10,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:10,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:10,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607036435] [2022-03-15 15:27:10,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:10,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:10,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:10,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:10,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:10,675 INFO L87 Difference]: Start difference. First operand 5103 states and 24293 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:10,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:10,909 INFO L93 Difference]: Finished difference Result 11930 states and 53371 transitions. [2022-03-15 15:27:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:10,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:10,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:10,951 INFO L225 Difference]: With dead ends: 11930 [2022-03-15 15:27:10,951 INFO L226 Difference]: Without dead ends: 11515 [2022-03-15 15:27:10,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:10,951 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 175 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:10,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 208 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:10,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11515 states. [2022-03-15 15:27:11,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11515 to 5297. [2022-03-15 15:27:11,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5297 states, 5296 states have (on average 4.751888217522659) internal successors, (25166), 5296 states have internal predecessors, (25166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:11,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5297 states to 5297 states and 25166 transitions. [2022-03-15 15:27:11,142 INFO L78 Accepts]: Start accepts. Automaton has 5297 states and 25166 transitions. Word has length 29 [2022-03-15 15:27:11,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:11,142 INFO L470 AbstractCegarLoop]: Abstraction has 5297 states and 25166 transitions. [2022-03-15 15:27:11,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5297 states and 25166 transitions. [2022-03-15 15:27:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:11,152 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:11,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:11,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-15 15:27:11,153 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:11,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:11,153 INFO L85 PathProgramCache]: Analyzing trace with hash -797904955, now seen corresponding path program 122 times [2022-03-15 15:27:11,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:11,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660698761] [2022-03-15 15:27:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:11,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:11,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:11,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:11,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660698761] [2022-03-15 15:27:11,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660698761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:11,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:11,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:11,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355060794] [2022-03-15 15:27:11,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:11,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:11,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:11,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:11,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:11,367 INFO L87 Difference]: Start difference. First operand 5297 states and 25166 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:11,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:11,648 INFO L93 Difference]: Finished difference Result 12057 states and 53850 transitions. [2022-03-15 15:27:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:11,648 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:11,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:11,685 INFO L225 Difference]: With dead ends: 12057 [2022-03-15 15:27:11,685 INFO L226 Difference]: Without dead ends: 11435 [2022-03-15 15:27:11,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:11,686 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 152 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:11,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 294 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:27:11,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11435 states. [2022-03-15 15:27:11,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11435 to 5217. [2022-03-15 15:27:11,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.755751533742331) internal successors, (24806), 5216 states have internal predecessors, (24806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:11,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24806 transitions. [2022-03-15 15:27:11,856 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24806 transitions. Word has length 29 [2022-03-15 15:27:11,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:11,856 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24806 transitions. [2022-03-15 15:27:11,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:11,856 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24806 transitions. [2022-03-15 15:27:11,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:11,867 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:11,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:11,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-15 15:27:11,870 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:11,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:11,870 INFO L85 PathProgramCache]: Analyzing trace with hash -32502781, now seen corresponding path program 123 times [2022-03-15 15:27:11,871 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:11,871 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226412419] [2022-03-15 15:27:11,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:11,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:12,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:12,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:12,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226412419] [2022-03-15 15:27:12,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226412419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:12,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:12,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:12,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129626512] [2022-03-15 15:27:12,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:12,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:12,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:12,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:12,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:12,126 INFO L87 Difference]: Start difference. First operand 5217 states and 24806 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:12,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:12,353 INFO L93 Difference]: Finished difference Result 11833 states and 52929 transitions. [2022-03-15 15:27:12,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:12,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:12,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:12,388 INFO L225 Difference]: With dead ends: 11833 [2022-03-15 15:27:12,388 INFO L226 Difference]: Without dead ends: 11418 [2022-03-15 15:27:12,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:12,390 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 189 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:12,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 218 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:12,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2022-03-15 15:27:12,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 5265. [2022-03-15 15:27:12,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.74582066869301) internal successors, (24982), 5264 states have internal predecessors, (24982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:12,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24982 transitions. [2022-03-15 15:27:12,609 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24982 transitions. Word has length 29 [2022-03-15 15:27:12,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:12,609 INFO L470 AbstractCegarLoop]: Abstraction has 5265 states and 24982 transitions. [2022-03-15 15:27:12,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:12,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24982 transitions. [2022-03-15 15:27:12,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:12,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:12,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:12,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-15 15:27:12,621 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:12,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:12,622 INFO L85 PathProgramCache]: Analyzing trace with hash 196784229, now seen corresponding path program 124 times [2022-03-15 15:27:12,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:12,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794025472] [2022-03-15 15:27:12,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:12,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:12,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:12,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794025472] [2022-03-15 15:27:12,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794025472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:12,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:12,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:12,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947635729] [2022-03-15 15:27:12,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:12,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:12,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:12,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:12,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:12,794 INFO L87 Difference]: Start difference. First operand 5265 states and 24982 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:13,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:13,017 INFO L93 Difference]: Finished difference Result 11895 states and 53150 transitions. [2022-03-15 15:27:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:13,018 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:13,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:13,057 INFO L225 Difference]: With dead ends: 11895 [2022-03-15 15:27:13,058 INFO L226 Difference]: Without dead ends: 11370 [2022-03-15 15:27:13,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:13,058 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:13,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 191 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:13,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11370 states. [2022-03-15 15:27:13,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11370 to 5217. [2022-03-15 15:27:13,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.751150306748467) internal successors, (24782), 5216 states have internal predecessors, (24782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:13,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24782 transitions. [2022-03-15 15:27:13,232 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24782 transitions. Word has length 29 [2022-03-15 15:27:13,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:13,232 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24782 transitions. [2022-03-15 15:27:13,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:13,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24782 transitions. [2022-03-15 15:27:13,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:13,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:13,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:13,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-15 15:27:13,246 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:13,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:13,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1931285159, now seen corresponding path program 125 times [2022-03-15 15:27:13,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:13,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869396900] [2022-03-15 15:27:13,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:13,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:13,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:13,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:13,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869396900] [2022-03-15 15:27:13,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869396900] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:13,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:13,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:13,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722850241] [2022-03-15 15:27:13,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:13,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:13,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:13,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:13,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:13,418 INFO L87 Difference]: Start difference. First operand 5217 states and 24782 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:13,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:13,616 INFO L93 Difference]: Finished difference Result 12182 states and 54365 transitions. [2022-03-15 15:27:13,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:13,616 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:13,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:13,654 INFO L225 Difference]: With dead ends: 12182 [2022-03-15 15:27:13,654 INFO L226 Difference]: Without dead ends: 11640 [2022-03-15 15:27:13,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:13,655 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 203 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:13,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 194 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:13,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11640 states. [2022-03-15 15:27:13,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11640 to 5360. [2022-03-15 15:27:13,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5359 states have (on average 4.721216644896436) internal successors, (25301), 5359 states have internal predecessors, (25301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:13,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 25301 transitions. [2022-03-15 15:27:13,824 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 25301 transitions. Word has length 29 [2022-03-15 15:27:13,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:13,824 INFO L470 AbstractCegarLoop]: Abstraction has 5360 states and 25301 transitions. [2022-03-15 15:27:13,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:13,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 25301 transitions. [2022-03-15 15:27:13,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:13,835 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:13,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:13,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-15 15:27:13,835 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:13,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:13,835 INFO L85 PathProgramCache]: Analyzing trace with hash -112051835, now seen corresponding path program 126 times [2022-03-15 15:27:13,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:13,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344707057] [2022-03-15 15:27:13,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:13,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:14,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:14,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:14,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344707057] [2022-03-15 15:27:14,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344707057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:14,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:14,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:14,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023921250] [2022-03-15 15:27:14,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:14,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:14,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:14,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:14,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:14,032 INFO L87 Difference]: Start difference. First operand 5360 states and 25301 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:14,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:14,282 INFO L93 Difference]: Finished difference Result 12117 states and 53996 transitions. [2022-03-15 15:27:14,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:14,282 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:14,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:14,318 INFO L225 Difference]: With dead ends: 12117 [2022-03-15 15:27:14,318 INFO L226 Difference]: Without dead ends: 11441 [2022-03-15 15:27:14,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:14,318 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:14,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 215 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:14,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11441 states. [2022-03-15 15:27:14,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11441 to 5161. [2022-03-15 15:27:14,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.757751937984496) internal successors, (24550), 5160 states have internal predecessors, (24550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:14,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24550 transitions. [2022-03-15 15:27:14,483 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24550 transitions. Word has length 29 [2022-03-15 15:27:14,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:14,483 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24550 transitions. [2022-03-15 15:27:14,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24550 transitions. [2022-03-15 15:27:14,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:14,494 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:14,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:14,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-15 15:27:14,494 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:14,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:14,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1850789723, now seen corresponding path program 127 times [2022-03-15 15:27:14,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:14,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877873682] [2022-03-15 15:27:14,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:14,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:14,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:14,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:14,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877873682] [2022-03-15 15:27:14,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877873682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:14,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:14,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:14,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032762951] [2022-03-15 15:27:14,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:14,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:14,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:14,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:14,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:14,638 INFO L87 Difference]: Start difference. First operand 5161 states and 24550 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:14,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:14,858 INFO L93 Difference]: Finished difference Result 11879 states and 53159 transitions. [2022-03-15 15:27:14,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:14,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:14,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:14,893 INFO L225 Difference]: With dead ends: 11879 [2022-03-15 15:27:14,893 INFO L226 Difference]: Without dead ends: 11464 [2022-03-15 15:27:14,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:14,894 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 174 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:14,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 206 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11464 states. [2022-03-15 15:27:15,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11464 to 5281. [2022-03-15 15:27:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 4.7488636363636365) internal successors, (25074), 5280 states have internal predecessors, (25074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 25074 transitions. [2022-03-15 15:27:15,054 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 25074 transitions. Word has length 29 [2022-03-15 15:27:15,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:15,054 INFO L470 AbstractCegarLoop]: Abstraction has 5281 states and 25074 transitions. [2022-03-15 15:27:15,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:15,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 25074 transitions. [2022-03-15 15:27:15,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:15,065 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:15,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:15,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-15 15:27:15,065 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:15,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:15,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1458973543, now seen corresponding path program 128 times [2022-03-15 15:27:15,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:15,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375008772] [2022-03-15 15:27:15,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:15,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:15,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:15,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:15,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375008772] [2022-03-15 15:27:15,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375008772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:15,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:15,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:15,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569969053] [2022-03-15 15:27:15,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:15,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:15,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:15,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:15,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:15,244 INFO L87 Difference]: Start difference. First operand 5281 states and 25074 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:15,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:15,450 INFO L93 Difference]: Finished difference Result 12006 states and 53638 transitions. [2022-03-15 15:27:15,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:15,450 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:15,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:15,486 INFO L225 Difference]: With dead ends: 12006 [2022-03-15 15:27:15,486 INFO L226 Difference]: Without dead ends: 11384 [2022-03-15 15:27:15,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:15,487 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 163 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:15,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 207 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:15,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11384 states. [2022-03-15 15:27:15,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11384 to 5201. [2022-03-15 15:27:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.752692307692308) internal successors, (24714), 5200 states have internal predecessors, (24714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:15,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24714 transitions. [2022-03-15 15:27:15,652 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24714 transitions. Word has length 29 [2022-03-15 15:27:15,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:15,652 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24714 transitions. [2022-03-15 15:27:15,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:15,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24714 transitions. [2022-03-15 15:27:15,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:15,662 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:15,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:15,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-15 15:27:15,663 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:15,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:15,663 INFO L85 PathProgramCache]: Analyzing trace with hash 556674115, now seen corresponding path program 129 times [2022-03-15 15:27:15,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:15,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032234681] [2022-03-15 15:27:15,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:15,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:15,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:15,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032234681] [2022-03-15 15:27:15,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032234681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:15,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:15,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:15,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170371763] [2022-03-15 15:27:15,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:15,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:15,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:15,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:15,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:15,863 INFO L87 Difference]: Start difference. First operand 5201 states and 24714 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:16,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:16,088 INFO L93 Difference]: Finished difference Result 11780 states and 52712 transitions. [2022-03-15 15:27:16,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:16,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:16,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:16,125 INFO L225 Difference]: With dead ends: 11780 [2022-03-15 15:27:16,125 INFO L226 Difference]: Without dead ends: 11365 [2022-03-15 15:27:16,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:16,125 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 187 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:16,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 199 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11365 states. [2022-03-15 15:27:16,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11365 to 5249. [2022-03-15 15:27:16,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.742759146341464) internal successors, (24890), 5248 states have internal predecessors, (24890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:16,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24890 transitions. [2022-03-15 15:27:16,291 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24890 transitions. Word has length 29 [2022-03-15 15:27:16,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:16,291 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 24890 transitions. [2022-03-15 15:27:16,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:16,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24890 transitions. [2022-03-15 15:27:16,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:16,302 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:16,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:16,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-15 15:27:16,302 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:16,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:16,303 INFO L85 PathProgramCache]: Analyzing trace with hash -445382747, now seen corresponding path program 130 times [2022-03-15 15:27:16,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:16,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149073768] [2022-03-15 15:27:16,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:16,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:16,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:16,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:16,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149073768] [2022-03-15 15:27:16,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149073768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:16,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:16,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:16,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835473802] [2022-03-15 15:27:16,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:16,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:16,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:16,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:16,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:16,494 INFO L87 Difference]: Start difference. First operand 5249 states and 24890 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:16,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:16,715 INFO L93 Difference]: Finished difference Result 11840 states and 52928 transitions. [2022-03-15 15:27:16,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:16,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:16,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:16,753 INFO L225 Difference]: With dead ends: 11840 [2022-03-15 15:27:16,754 INFO L226 Difference]: Without dead ends: 11317 [2022-03-15 15:27:16,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:16,754 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 183 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:16,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 204 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:16,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11317 states. [2022-03-15 15:27:16,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11317 to 5201. [2022-03-15 15:27:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.748076923076923) internal successors, (24690), 5200 states have internal predecessors, (24690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:16,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24690 transitions. [2022-03-15 15:27:16,910 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24690 transitions. Word has length 29 [2022-03-15 15:27:16,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:16,910 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24690 transitions. [2022-03-15 15:27:16,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:16,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24690 transitions. [2022-03-15 15:27:16,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:16,920 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:16,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:16,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-15 15:27:16,920 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:16,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:16,920 INFO L85 PathProgramCache]: Analyzing trace with hash -55279129, now seen corresponding path program 131 times [2022-03-15 15:27:16,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:16,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698504309] [2022-03-15 15:27:16,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:16,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:17,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:17,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698504309] [2022-03-15 15:27:17,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698504309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:17,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:17,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:17,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562877658] [2022-03-15 15:27:17,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:17,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:17,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:17,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:17,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:17,069 INFO L87 Difference]: Start difference. First operand 5201 states and 24690 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:17,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:17,267 INFO L93 Difference]: Finished difference Result 12096 states and 54033 transitions. [2022-03-15 15:27:17,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:17,267 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:17,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:17,302 INFO L225 Difference]: With dead ends: 12096 [2022-03-15 15:27:17,302 INFO L226 Difference]: Without dead ends: 11554 [2022-03-15 15:27:17,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:17,302 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 175 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:17,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 205 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:17,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11554 states. [2022-03-15 15:27:17,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11554 to 5311. [2022-03-15 15:27:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 4.7259887005649714) internal successors, (25095), 5310 states have internal predecessors, (25095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:17,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 25095 transitions. [2022-03-15 15:27:17,454 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 25095 transitions. Word has length 29 [2022-03-15 15:27:17,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:17,454 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 25095 transitions. [2022-03-15 15:27:17,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 25095 transitions. [2022-03-15 15:27:17,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:17,465 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:17,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:17,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-15 15:27:17,465 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:17,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:17,469 INFO L85 PathProgramCache]: Analyzing trace with hash -796231227, now seen corresponding path program 132 times [2022-03-15 15:27:17,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:17,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945226304] [2022-03-15 15:27:17,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:17,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:17,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:17,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945226304] [2022-03-15 15:27:17,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945226304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:17,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:17,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:17,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964649625] [2022-03-15 15:27:17,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:17,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:17,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:17,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:17,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:17,681 INFO L87 Difference]: Start difference. First operand 5311 states and 25095 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:17,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:17,897 INFO L93 Difference]: Finished difference Result 12029 states and 53660 transitions. [2022-03-15 15:27:17,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:17,897 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:17,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:17,935 INFO L225 Difference]: With dead ends: 12029 [2022-03-15 15:27:17,935 INFO L226 Difference]: Without dead ends: 11404 [2022-03-15 15:27:17,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:17,936 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 160 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:17,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 198 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:17,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11404 states. [2022-03-15 15:27:18,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11404 to 5161. [2022-03-15 15:27:18,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.753875968992248) internal successors, (24530), 5160 states have internal predecessors, (24530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:18,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24530 transitions. [2022-03-15 15:27:18,107 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24530 transitions. Word has length 29 [2022-03-15 15:27:18,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:18,107 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24530 transitions. [2022-03-15 15:27:18,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:18,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24530 transitions. [2022-03-15 15:27:18,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:18,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:18,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:18,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-15 15:27:18,118 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:18,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:18,118 INFO L85 PathProgramCache]: Analyzing trace with hash -589798589, now seen corresponding path program 133 times [2022-03-15 15:27:18,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:18,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749084968] [2022-03-15 15:27:18,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:18,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:18,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:18,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:18,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749084968] [2022-03-15 15:27:18,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749084968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:18,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:18,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:18,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264126212] [2022-03-15 15:27:18,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:18,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:18,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:18,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:18,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:18,249 INFO L87 Difference]: Start difference. First operand 5161 states and 24530 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:18,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:18,431 INFO L93 Difference]: Finished difference Result 11637 states and 52111 transitions. [2022-03-15 15:27:18,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:18,431 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:18,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:18,471 INFO L225 Difference]: With dead ends: 11637 [2022-03-15 15:27:18,472 INFO L226 Difference]: Without dead ends: 11222 [2022-03-15 15:27:18,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:18,472 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 158 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:18,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 226 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:18,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11222 states. [2022-03-15 15:27:18,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11222 to 5233. [2022-03-15 15:27:18,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.745795107033639) internal successors, (24830), 5232 states have internal predecessors, (24830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:18,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24830 transitions. [2022-03-15 15:27:18,658 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24830 transitions. Word has length 29 [2022-03-15 15:27:18,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:18,658 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24830 transitions. [2022-03-15 15:27:18,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24830 transitions. [2022-03-15 15:27:18,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:18,671 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:18,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:18,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-15 15:27:18,671 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:18,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:18,672 INFO L85 PathProgramCache]: Analyzing trace with hash -360511579, now seen corresponding path program 134 times [2022-03-15 15:27:18,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:18,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860405425] [2022-03-15 15:27:18,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:18,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:18,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:18,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:18,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860405425] [2022-03-15 15:27:18,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860405425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:18,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:18,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:18,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101292874] [2022-03-15 15:27:18,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:18,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:18,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:18,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:18,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:18,884 INFO L87 Difference]: Start difference. First operand 5233 states and 24830 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:19,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:19,069 INFO L93 Difference]: Finished difference Result 11699 states and 52332 transitions. [2022-03-15 15:27:19,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:19,069 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:19,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:19,104 INFO L225 Difference]: With dead ends: 11699 [2022-03-15 15:27:19,104 INFO L226 Difference]: Without dead ends: 11174 [2022-03-15 15:27:19,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:19,104 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 190 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:19,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 187 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:19,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11174 states. [2022-03-15 15:27:19,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11174 to 5185. [2022-03-15 15:27:19,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.751157407407407) internal successors, (24630), 5184 states have internal predecessors, (24630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24630 transitions. [2022-03-15 15:27:19,264 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24630 transitions. Word has length 29 [2022-03-15 15:27:19,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:19,264 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24630 transitions. [2022-03-15 15:27:19,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:19,264 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24630 transitions. [2022-03-15 15:27:19,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:19,274 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:19,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:19,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-15 15:27:19,274 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:19,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:19,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1763758299, now seen corresponding path program 135 times [2022-03-15 15:27:19,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:19,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503481546] [2022-03-15 15:27:19,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:19,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:19,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:19,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:19,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503481546] [2022-03-15 15:27:19,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503481546] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:19,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:19,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:19,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540789337] [2022-03-15 15:27:19,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:19,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:19,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:19,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:19,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:19,410 INFO L87 Difference]: Start difference. First operand 5185 states and 24630 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:19,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:19,604 INFO L93 Difference]: Finished difference Result 11635 states and 52082 transitions. [2022-03-15 15:27:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:19,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:19,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:19,641 INFO L225 Difference]: With dead ends: 11635 [2022-03-15 15:27:19,641 INFO L226 Difference]: Without dead ends: 11220 [2022-03-15 15:27:19,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:19,641 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 158 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:19,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 228 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:19,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11220 states. [2022-03-15 15:27:19,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11220 to 5233. [2022-03-15 15:27:19,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.741207951070336) internal successors, (24806), 5232 states have internal predecessors, (24806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:19,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24806 transitions. [2022-03-15 15:27:19,878 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24806 transitions. Word has length 29 [2022-03-15 15:27:19,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:19,879 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24806 transitions. [2022-03-15 15:27:19,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:19,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24806 transitions. [2022-03-15 15:27:19,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:19,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:19,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:19,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-15 15:27:19,889 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:19,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:19,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1221568859, now seen corresponding path program 136 times [2022-03-15 15:27:19,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:19,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168133658] [2022-03-15 15:27:19,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:19,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:20,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:20,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:20,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168133658] [2022-03-15 15:27:20,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168133658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:20,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:20,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:20,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604366179] [2022-03-15 15:27:20,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:20,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:20,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:20,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:20,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:20,033 INFO L87 Difference]: Start difference. First operand 5233 states and 24806 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:20,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:20,310 INFO L93 Difference]: Finished difference Result 11695 states and 52298 transitions. [2022-03-15 15:27:20,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:20,310 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:20,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:20,347 INFO L225 Difference]: With dead ends: 11695 [2022-03-15 15:27:20,347 INFO L226 Difference]: Without dead ends: 11172 [2022-03-15 15:27:20,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:20,347 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 168 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:20,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 239 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:27:20,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11172 states. [2022-03-15 15:27:20,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11172 to 5185. [2022-03-15 15:27:20,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.746527777777778) internal successors, (24606), 5184 states have internal predecessors, (24606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:20,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24606 transitions. [2022-03-15 15:27:20,515 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24606 transitions. Word has length 29 [2022-03-15 15:27:20,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:20,515 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24606 transitions. [2022-03-15 15:27:20,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:20,515 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24606 transitions. [2022-03-15 15:27:20,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:20,526 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:20,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:20,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-15 15:27:20,526 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:20,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:20,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1264481657, now seen corresponding path program 137 times [2022-03-15 15:27:20,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:20,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869051589] [2022-03-15 15:27:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:20,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:20,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:20,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:20,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869051589] [2022-03-15 15:27:20,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869051589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:20,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:20,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:20,696 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432639473] [2022-03-15 15:27:20,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:20,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:20,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:20,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:20,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:20,696 INFO L87 Difference]: Start difference. First operand 5185 states and 24606 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:20,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:20,919 INFO L93 Difference]: Finished difference Result 11789 states and 52743 transitions. [2022-03-15 15:27:20,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:20,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:20,954 INFO L225 Difference]: With dead ends: 11789 [2022-03-15 15:27:20,954 INFO L226 Difference]: Without dead ends: 11312 [2022-03-15 15:27:20,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:20,955 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 167 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:20,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 213 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:20,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11312 states. [2022-03-15 15:27:21,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11312 to 5263. [2022-03-15 15:27:21,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.7318510072215885) internal successors, (24899), 5262 states have internal predecessors, (24899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:21,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24899 transitions. [2022-03-15 15:27:21,108 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24899 transitions. Word has length 29 [2022-03-15 15:27:21,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:21,108 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 24899 transitions. [2022-03-15 15:27:21,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:21,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24899 transitions. [2022-03-15 15:27:21,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:21,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:21,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:21,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-15 15:27:21,119 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:21,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:21,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1638341093, now seen corresponding path program 138 times [2022-03-15 15:27:21,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:21,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696270374] [2022-03-15 15:27:21,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:21,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:21,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:21,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:21,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696270374] [2022-03-15 15:27:21,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696270374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:21,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:21,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:21,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399171130] [2022-03-15 15:27:21,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:21,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:21,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:21,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:21,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:21,286 INFO L87 Difference]: Start difference. First operand 5263 states and 24899 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:21,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:21,521 INFO L93 Difference]: Finished difference Result 11787 states and 52660 transitions. [2022-03-15 15:27:21,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:21,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:21,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:21,560 INFO L225 Difference]: With dead ends: 11787 [2022-03-15 15:27:21,560 INFO L226 Difference]: Without dead ends: 11210 [2022-03-15 15:27:21,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:21,560 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 172 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:21,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 206 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:21,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11210 states. [2022-03-15 15:27:21,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11210 to 5161. [2022-03-15 15:27:21,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.751550387596899) internal successors, (24518), 5160 states have internal predecessors, (24518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:21,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24518 transitions. [2022-03-15 15:27:21,737 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24518 transitions. Word has length 29 [2022-03-15 15:27:21,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:21,737 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24518 transitions. [2022-03-15 15:27:21,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:21,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24518 transitions. [2022-03-15 15:27:21,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:21,747 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:21,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:21,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-15 15:27:21,748 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:21,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:21,748 INFO L85 PathProgramCache]: Analyzing trace with hash -709258167, now seen corresponding path program 139 times [2022-03-15 15:27:21,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:21,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102809154] [2022-03-15 15:27:21,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:21,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:21,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:21,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:21,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102809154] [2022-03-15 15:27:21,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102809154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:21,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:21,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:21,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40741983] [2022-03-15 15:27:21,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:21,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:21,919 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:21,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:21,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:21,919 INFO L87 Difference]: Start difference. First operand 5161 states and 24518 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:22,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:22,135 INFO L93 Difference]: Finished difference Result 12333 states and 55056 transitions. [2022-03-15 15:27:22,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:22,135 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:22,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:22,176 INFO L225 Difference]: With dead ends: 12333 [2022-03-15 15:27:22,176 INFO L226 Difference]: Without dead ends: 11791 [2022-03-15 15:27:22,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:22,177 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 185 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:22,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 203 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:22,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11791 states. [2022-03-15 15:27:22,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11791 to 5391. [2022-03-15 15:27:22,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5391 states, 5390 states have (on average 4.71873840445269) internal successors, (25434), 5390 states have internal predecessors, (25434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:22,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5391 states to 5391 states and 25434 transitions. [2022-03-15 15:27:22,355 INFO L78 Accepts]: Start accepts. Automaton has 5391 states and 25434 transitions. Word has length 29 [2022-03-15 15:27:22,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:22,356 INFO L470 AbstractCegarLoop]: Abstraction has 5391 states and 25434 transitions. [2022-03-15 15:27:22,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:22,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5391 states and 25434 transitions. [2022-03-15 15:27:22,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:22,367 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:22,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:22,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-15 15:27:22,367 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:22,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:22,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1542372135, now seen corresponding path program 140 times [2022-03-15 15:27:22,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:22,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444478733] [2022-03-15 15:27:22,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:22,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:22,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:22,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:22,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444478733] [2022-03-15 15:27:22,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444478733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:22,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:22,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:22,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590978377] [2022-03-15 15:27:22,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:22,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:22,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:22,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:22,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:22,483 INFO L87 Difference]: Start difference. First operand 5391 states and 25434 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:22,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:22,659 INFO L93 Difference]: Finished difference Result 12268 states and 54687 transitions. [2022-03-15 15:27:22,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:22,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:22,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:22,696 INFO L225 Difference]: With dead ends: 12268 [2022-03-15 15:27:22,696 INFO L226 Difference]: Without dead ends: 11648 [2022-03-15 15:27:22,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:22,696 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 178 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:22,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 203 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:22,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11648 states. [2022-03-15 15:27:22,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11648 to 5248. [2022-03-15 15:27:22,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5248 states, 5247 states have (on average 4.734896131122547) internal successors, (24844), 5247 states have internal predecessors, (24844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:22,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5248 states to 5248 states and 24844 transitions. [2022-03-15 15:27:22,866 INFO L78 Accepts]: Start accepts. Automaton has 5248 states and 24844 transitions. Word has length 29 [2022-03-15 15:27:22,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:22,866 INFO L470 AbstractCegarLoop]: Abstraction has 5248 states and 24844 transitions. [2022-03-15 15:27:22,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:22,866 INFO L276 IsEmpty]: Start isEmpty. Operand 5248 states and 24844 transitions. [2022-03-15 15:27:22,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:22,877 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:22,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:22,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-15 15:27:22,878 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:22,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:22,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1469629479, now seen corresponding path program 141 times [2022-03-15 15:27:22,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:22,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128450913] [2022-03-15 15:27:22,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:22,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:23,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:23,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:23,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128450913] [2022-03-15 15:27:23,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128450913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:23,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:23,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:23,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040315446] [2022-03-15 15:27:23,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:23,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:23,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:23,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:23,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:23,053 INFO L87 Difference]: Start difference. First operand 5248 states and 24844 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:23,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:23,247 INFO L93 Difference]: Finished difference Result 12298 states and 54865 transitions. [2022-03-15 15:27:23,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:23,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:23,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:23,288 INFO L225 Difference]: With dead ends: 12298 [2022-03-15 15:27:23,288 INFO L226 Difference]: Without dead ends: 11756 [2022-03-15 15:27:23,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:23,289 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 175 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:23,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 205 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:23,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11756 states. [2022-03-15 15:27:23,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11756 to 5358. [2022-03-15 15:27:23,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5358 states, 5357 states have (on average 4.7132723539294386) internal successors, (25249), 5357 states have internal predecessors, (25249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5358 states to 5358 states and 25249 transitions. [2022-03-15 15:27:23,461 INFO L78 Accepts]: Start accepts. Automaton has 5358 states and 25249 transitions. Word has length 29 [2022-03-15 15:27:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:23,461 INFO L470 AbstractCegarLoop]: Abstraction has 5358 states and 25249 transitions. [2022-03-15 15:27:23,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:23,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5358 states and 25249 transitions. [2022-03-15 15:27:23,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:23,472 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:23,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:23,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-15 15:27:23,472 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:23,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:23,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2025417767, now seen corresponding path program 142 times [2022-03-15 15:27:23,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:23,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668915623] [2022-03-15 15:27:23,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:23,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:23,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:23,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:23,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668915623] [2022-03-15 15:27:23,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668915623] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:23,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:23,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:23,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401642469] [2022-03-15 15:27:23,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:23,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:23,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:23,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:23,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:23,649 INFO L87 Difference]: Start difference. First operand 5358 states and 25249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:23,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:23,915 INFO L93 Difference]: Finished difference Result 12231 states and 54492 transitions. [2022-03-15 15:27:23,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:23,916 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:23,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:23,952 INFO L225 Difference]: With dead ends: 12231 [2022-03-15 15:27:23,952 INFO L226 Difference]: Without dead ends: 11646 [2022-03-15 15:27:23,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:23,952 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 177 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:23,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 246 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:27:23,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11646 states. [2022-03-15 15:27:24,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11646 to 5248. [2022-03-15 15:27:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5248 states, 5247 states have (on average 4.724413950829045) internal successors, (24789), 5247 states have internal predecessors, (24789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:24,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5248 states to 5248 states and 24789 transitions. [2022-03-15 15:27:24,110 INFO L78 Accepts]: Start accepts. Automaton has 5248 states and 24789 transitions. Word has length 29 [2022-03-15 15:27:24,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:24,110 INFO L470 AbstractCegarLoop]: Abstraction has 5248 states and 24789 transitions. [2022-03-15 15:27:24,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:24,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5248 states and 24789 transitions. [2022-03-15 15:27:24,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:24,120 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:24,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:24,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-15 15:27:24,121 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:24,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:24,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1842990203, now seen corresponding path program 143 times [2022-03-15 15:27:24,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:24,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862024196] [2022-03-15 15:27:24,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:24,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:24,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:24,329 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:24,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862024196] [2022-03-15 15:27:24,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862024196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:24,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:24,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:24,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568874827] [2022-03-15 15:27:24,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:24,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:24,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:24,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:24,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:24,330 INFO L87 Difference]: Start difference. First operand 5248 states and 24789 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:24,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:24,555 INFO L93 Difference]: Finished difference Result 12136 states and 54150 transitions. [2022-03-15 15:27:24,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:24,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:24,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:24,591 INFO L225 Difference]: With dead ends: 12136 [2022-03-15 15:27:24,592 INFO L226 Difference]: Without dead ends: 11659 [2022-03-15 15:27:24,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:24,592 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 159 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:24,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 216 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:24,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11659 states. [2022-03-15 15:27:24,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11659 to 5326. [2022-03-15 15:27:24,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5326 states, 5325 states have (on average 4.710234741784038) internal successors, (25082), 5325 states have internal predecessors, (25082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:24,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 25082 transitions. [2022-03-15 15:27:24,746 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 25082 transitions. Word has length 29 [2022-03-15 15:27:24,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:24,746 INFO L470 AbstractCegarLoop]: Abstraction has 5326 states and 25082 transitions. [2022-03-15 15:27:24,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:24,746 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 25082 transitions. [2022-03-15 15:27:24,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:24,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:24,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:24,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-15 15:27:24,757 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:24,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:24,757 INFO L85 PathProgramCache]: Analyzing trace with hash -2049798169, now seen corresponding path program 144 times [2022-03-15 15:27:24,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:24,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177496981] [2022-03-15 15:27:24,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:24,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:24,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:24,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:24,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177496981] [2022-03-15 15:27:24,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177496981] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:24,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:24,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:24,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464251704] [2022-03-15 15:27:24,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:24,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:24,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:24,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:24,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:24,942 INFO L87 Difference]: Start difference. First operand 5326 states and 25082 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:25,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:25,163 INFO L93 Difference]: Finished difference Result 12134 states and 54067 transitions. [2022-03-15 15:27:25,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:25,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:25,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:25,199 INFO L225 Difference]: With dead ends: 12134 [2022-03-15 15:27:25,199 INFO L226 Difference]: Without dead ends: 11458 [2022-03-15 15:27:25,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:25,199 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 165 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:25,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 206 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:25,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11458 states. [2022-03-15 15:27:25,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11458 to 5125. [2022-03-15 15:27:25,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.758782201405152) internal successors, (24384), 5124 states have internal predecessors, (24384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24384 transitions. [2022-03-15 15:27:25,357 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24384 transitions. Word has length 29 [2022-03-15 15:27:25,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:25,358 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24384 transitions. [2022-03-15 15:27:25,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:25,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24384 transitions. [2022-03-15 15:27:25,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:25,367 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:25,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:25,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-15 15:27:25,368 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:25,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:25,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1388986883, now seen corresponding path program 145 times [2022-03-15 15:27:25,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:25,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78434084] [2022-03-15 15:27:25,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:25,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:25,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:25,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:25,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78434084] [2022-03-15 15:27:25,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78434084] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:25,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:25,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:25,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640452728] [2022-03-15 15:27:25,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:25,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:25,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:25,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:25,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:25,495 INFO L87 Difference]: Start difference. First operand 5125 states and 24384 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:25,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:25,678 INFO L93 Difference]: Finished difference Result 11897 states and 53247 transitions. [2022-03-15 15:27:25,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:25,678 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:25,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:25,714 INFO L225 Difference]: With dead ends: 11897 [2022-03-15 15:27:25,714 INFO L226 Difference]: Without dead ends: 11482 [2022-03-15 15:27:25,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:25,715 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 170 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:25,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 202 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:25,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11482 states. [2022-03-15 15:27:25,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11482 to 5289. [2022-03-15 15:27:25,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 4.750378214826021) internal successors, (25120), 5288 states have internal predecessors, (25120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:25,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 25120 transitions. [2022-03-15 15:27:25,871 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 25120 transitions. Word has length 29 [2022-03-15 15:27:25,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:25,871 INFO L470 AbstractCegarLoop]: Abstraction has 5289 states and 25120 transitions. [2022-03-15 15:27:25,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:25,871 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 25120 transitions. [2022-03-15 15:27:25,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:25,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:25,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:25,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-15 15:27:25,881 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:25,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:25,881 INFO L85 PathProgramCache]: Analyzing trace with hash 403782853, now seen corresponding path program 146 times [2022-03-15 15:27:25,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:25,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087708427] [2022-03-15 15:27:25,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:25,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:26,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:26,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:26,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087708427] [2022-03-15 15:27:26,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087708427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:26,013 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:26,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:26,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215828934] [2022-03-15 15:27:26,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:26,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:26,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:26,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:26,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:26,014 INFO L87 Difference]: Start difference. First operand 5289 states and 25120 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:26,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:26,199 INFO L93 Difference]: Finished difference Result 12024 states and 53726 transitions. [2022-03-15 15:27:26,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:26,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:26,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:26,234 INFO L225 Difference]: With dead ends: 12024 [2022-03-15 15:27:26,234 INFO L226 Difference]: Without dead ends: 11402 [2022-03-15 15:27:26,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:26,235 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 165 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:26,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 215 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:26,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11402 states. [2022-03-15 15:27:26,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11402 to 5209. [2022-03-15 15:27:26,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.754224270353302) internal successors, (24760), 5208 states have internal predecessors, (24760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:26,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24760 transitions. [2022-03-15 15:27:26,388 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24760 transitions. Word has length 29 [2022-03-15 15:27:26,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:26,388 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24760 transitions. [2022-03-15 15:27:26,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:26,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24760 transitions. [2022-03-15 15:27:26,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:26,397 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:26,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:26,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-15 15:27:26,397 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:26,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:26,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1169185027, now seen corresponding path program 147 times [2022-03-15 15:27:26,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:26,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47224403] [2022-03-15 15:27:26,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:26,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:26,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:26,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:26,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47224403] [2022-03-15 15:27:26,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47224403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:26,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:26,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:26,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450098097] [2022-03-15 15:27:26,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:26,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:26,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:26,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:26,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:26,537 INFO L87 Difference]: Start difference. First operand 5209 states and 24760 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:26,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:26,759 INFO L93 Difference]: Finished difference Result 11800 states and 52805 transitions. [2022-03-15 15:27:26,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:26,759 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:26,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:26,791 INFO L225 Difference]: With dead ends: 11800 [2022-03-15 15:27:26,791 INFO L226 Difference]: Without dead ends: 11385 [2022-03-15 15:27:26,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:26,791 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 160 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:26,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 244 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:26,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2022-03-15 15:27:27,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 5257. [2022-03-15 15:27:27,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 4.744292237442922) internal successors, (24936), 5256 states have internal predecessors, (24936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:27,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 24936 transitions. [2022-03-15 15:27:27,028 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 24936 transitions. Word has length 29 [2022-03-15 15:27:27,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:27,028 INFO L470 AbstractCegarLoop]: Abstraction has 5257 states and 24936 transitions. [2022-03-15 15:27:27,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:27,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 24936 transitions. [2022-03-15 15:27:27,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:27,038 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:27,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:27,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-15 15:27:27,038 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:27,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:27,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1398472037, now seen corresponding path program 148 times [2022-03-15 15:27:27,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:27,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712113926] [2022-03-15 15:27:27,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:27,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:27,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:27,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:27,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712113926] [2022-03-15 15:27:27,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712113926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:27,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:27,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:27,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41369443] [2022-03-15 15:27:27,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:27,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:27,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:27,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:27,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:27,183 INFO L87 Difference]: Start difference. First operand 5257 states and 24936 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:27,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:27,400 INFO L93 Difference]: Finished difference Result 11862 states and 53026 transitions. [2022-03-15 15:27:27,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:27,400 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:27,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:27,434 INFO L225 Difference]: With dead ends: 11862 [2022-03-15 15:27:27,434 INFO L226 Difference]: Without dead ends: 11337 [2022-03-15 15:27:27,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:27,434 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 155 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:27,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 229 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:27,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11337 states. [2022-03-15 15:27:27,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11337 to 5209. [2022-03-15 15:27:27,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.749615975422427) internal successors, (24736), 5208 states have internal predecessors, (24736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:27,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24736 transitions. [2022-03-15 15:27:27,577 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24736 transitions. Word has length 29 [2022-03-15 15:27:27,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:27,577 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24736 transitions. [2022-03-15 15:27:27,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:27,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24736 transitions. [2022-03-15 15:27:27,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:27,587 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:27,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:27,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-15 15:27:27,587 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:27,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:27,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1161994329, now seen corresponding path program 149 times [2022-03-15 15:27:27,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:27,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706042465] [2022-03-15 15:27:27,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:27,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:27,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:27,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706042465] [2022-03-15 15:27:27,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706042465] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:27,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:27,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:27,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396063012] [2022-03-15 15:27:27,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:27,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:27,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:27,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:27,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:27,777 INFO L87 Difference]: Start difference. First operand 5209 states and 24736 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:27,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:27,988 INFO L93 Difference]: Finished difference Result 12149 states and 54241 transitions. [2022-03-15 15:27:27,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:27,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:27,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:28,028 INFO L225 Difference]: With dead ends: 12149 [2022-03-15 15:27:28,029 INFO L226 Difference]: Without dead ends: 11607 [2022-03-15 15:27:28,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:28,029 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:28,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 207 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:28,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11607 states. [2022-03-15 15:27:28,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11607 to 5352. [2022-03-15 15:27:28,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 4.719678564754251) internal successors, (25255), 5351 states have internal predecessors, (25255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:28,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 25255 transitions. [2022-03-15 15:27:28,197 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 25255 transitions. Word has length 29 [2022-03-15 15:27:28,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:28,197 INFO L470 AbstractCegarLoop]: Abstraction has 5352 states and 25255 transitions. [2022-03-15 15:27:28,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:28,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 25255 transitions. [2022-03-15 15:27:28,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:28,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:28,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:28,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-15 15:27:28,208 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:28,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:28,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1089635973, now seen corresponding path program 150 times [2022-03-15 15:27:28,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:28,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014036202] [2022-03-15 15:27:28,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:28,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:28,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:28,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014036202] [2022-03-15 15:27:28,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014036202] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:28,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:28,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:28,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435593122] [2022-03-15 15:27:28,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:28,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:28,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:28,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:28,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:28,414 INFO L87 Difference]: Start difference. First operand 5352 states and 25255 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:28,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:28,634 INFO L93 Difference]: Finished difference Result 12084 states and 53872 transitions. [2022-03-15 15:27:28,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:28,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:28,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:28,667 INFO L225 Difference]: With dead ends: 12084 [2022-03-15 15:27:28,667 INFO L226 Difference]: Without dead ends: 11408 [2022-03-15 15:27:28,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:28,667 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 161 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:28,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 225 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:28,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11408 states. [2022-03-15 15:27:28,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11408 to 5153. [2022-03-15 15:27:28,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.7562111801242235) internal successors, (24504), 5152 states have internal predecessors, (24504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24504 transitions. [2022-03-15 15:27:28,804 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24504 transitions. Word has length 29 [2022-03-15 15:27:28,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:28,805 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24504 transitions. [2022-03-15 15:27:28,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:28,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24504 transitions. [2022-03-15 15:27:28,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:28,814 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:28,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:28,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-15 15:27:28,814 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:28,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:28,815 INFO L85 PathProgramCache]: Analyzing trace with hash -419114429, now seen corresponding path program 151 times [2022-03-15 15:27:28,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:28,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097922229] [2022-03-15 15:27:28,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:28,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:28,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:28,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097922229] [2022-03-15 15:27:28,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097922229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:28,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:28,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:28,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417568995] [2022-03-15 15:27:28,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:28,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:28,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:28,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:28,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:28,938 INFO L87 Difference]: Start difference. First operand 5153 states and 24504 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:29,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:29,121 INFO L93 Difference]: Finished difference Result 11840 states and 53016 transitions. [2022-03-15 15:27:29,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:29,121 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:29,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:29,154 INFO L225 Difference]: With dead ends: 11840 [2022-03-15 15:27:29,154 INFO L226 Difference]: Without dead ends: 11425 [2022-03-15 15:27:29,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:29,155 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 159 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:29,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 225 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:29,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11425 states. [2022-03-15 15:27:29,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11425 to 5273. [2022-03-15 15:27:29,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5273 states, 5272 states have (on average 4.7473444613050075) internal successors, (25028), 5272 states have internal predecessors, (25028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:29,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 25028 transitions. [2022-03-15 15:27:29,293 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 25028 transitions. Word has length 29 [2022-03-15 15:27:29,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:29,293 INFO L470 AbstractCegarLoop]: Abstraction has 5273 states and 25028 transitions. [2022-03-15 15:27:29,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:29,293 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 25028 transitions. [2022-03-15 15:27:29,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:29,302 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:29,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:29,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-15 15:27:29,302 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:29,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:29,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1404318459, now seen corresponding path program 152 times [2022-03-15 15:27:29,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:29,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839605716] [2022-03-15 15:27:29,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:29,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:29,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:29,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:29,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839605716] [2022-03-15 15:27:29,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839605716] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:29,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:29,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:29,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068012722] [2022-03-15 15:27:29,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:29,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:29,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:29,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:29,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:29,410 INFO L87 Difference]: Start difference. First operand 5273 states and 25028 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:29,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:29,580 INFO L93 Difference]: Finished difference Result 11967 states and 53495 transitions. [2022-03-15 15:27:29,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:29,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:29,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:29,615 INFO L225 Difference]: With dead ends: 11967 [2022-03-15 15:27:29,615 INFO L226 Difference]: Without dead ends: 11345 [2022-03-15 15:27:29,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:29,615 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 171 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:29,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 231 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:29,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11345 states. [2022-03-15 15:27:29,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11345 to 5193. [2022-03-15 15:27:29,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.75115562403698) internal successors, (24668), 5192 states have internal predecessors, (24668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:29,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24668 transitions. [2022-03-15 15:27:29,759 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24668 transitions. Word has length 29 [2022-03-15 15:27:29,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:29,759 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24668 transitions. [2022-03-15 15:27:29,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24668 transitions. [2022-03-15 15:27:29,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:29,769 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:29,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:29,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-15 15:27:29,769 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:29,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:29,769 INFO L85 PathProgramCache]: Analyzing trace with hash 16057953, now seen corresponding path program 153 times [2022-03-15 15:27:29,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:29,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322730170] [2022-03-15 15:27:29,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:29,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:29,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:29,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:29,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322730170] [2022-03-15 15:27:29,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322730170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:29,943 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:29,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:29,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020803272] [2022-03-15 15:27:29,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:29,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:29,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:29,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:29,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:29,944 INFO L87 Difference]: Start difference. First operand 5193 states and 24668 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:30,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:30,128 INFO L93 Difference]: Finished difference Result 11737 states and 52557 transitions. [2022-03-15 15:27:30,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:30,128 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:30,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:30,160 INFO L225 Difference]: With dead ends: 11737 [2022-03-15 15:27:30,160 INFO L226 Difference]: Without dead ends: 11322 [2022-03-15 15:27:30,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:30,161 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 166 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:30,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 245 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:30,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11322 states. [2022-03-15 15:27:30,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11322 to 5241. [2022-03-15 15:27:30,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5241 states, 5240 states have (on average 4.741221374045802) internal successors, (24844), 5240 states have internal predecessors, (24844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:30,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 24844 transitions. [2022-03-15 15:27:30,296 INFO L78 Accepts]: Start accepts. Automaton has 5241 states and 24844 transitions. Word has length 29 [2022-03-15 15:27:30,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:30,296 INFO L470 AbstractCegarLoop]: Abstraction has 5241 states and 24844 transitions. [2022-03-15 15:27:30,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:30,296 INFO L276 IsEmpty]: Start isEmpty. Operand 5241 states and 24844 transitions. [2022-03-15 15:27:30,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:30,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:30,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:30,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-15 15:27:30,306 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:30,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:30,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1601670845, now seen corresponding path program 154 times [2022-03-15 15:27:30,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:30,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35970356] [2022-03-15 15:27:30,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:30,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:30,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:30,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:30,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35970356] [2022-03-15 15:27:30,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35970356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:30,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:30,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:30,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52838029] [2022-03-15 15:27:30,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:30,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:30,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:30,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:30,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:30,421 INFO L87 Difference]: Start difference. First operand 5241 states and 24844 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:30,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:30,594 INFO L93 Difference]: Finished difference Result 11793 states and 52761 transitions. [2022-03-15 15:27:30,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:30,598 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:30,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:30,632 INFO L225 Difference]: With dead ends: 11793 [2022-03-15 15:27:30,632 INFO L226 Difference]: Without dead ends: 11274 [2022-03-15 15:27:30,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:30,632 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 177 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:30,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 202 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:30,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11274 states. [2022-03-15 15:27:30,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11274 to 5193. [2022-03-15 15:27:30,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.74653312788906) internal successors, (24644), 5192 states have internal predecessors, (24644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:30,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24644 transitions. [2022-03-15 15:27:30,781 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24644 transitions. Word has length 29 [2022-03-15 15:27:30,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:30,782 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24644 transitions. [2022-03-15 15:27:30,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:30,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24644 transitions. [2022-03-15 15:27:30,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:30,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:30,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:30,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-15 15:27:30,793 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:30,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:30,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1883765883, now seen corresponding path program 155 times [2022-03-15 15:27:30,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:30,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184495753] [2022-03-15 15:27:30,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:30,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:30,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:30,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184495753] [2022-03-15 15:27:30,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184495753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:30,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:30,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:30,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860273546] [2022-03-15 15:27:30,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:30,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:30,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:30,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:30,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:30,967 INFO L87 Difference]: Start difference. First operand 5193 states and 24644 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:31,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:31,180 INFO L93 Difference]: Finished difference Result 12051 states and 53871 transitions. [2022-03-15 15:27:31,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:31,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:31,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:31,217 INFO L225 Difference]: With dead ends: 12051 [2022-03-15 15:27:31,217 INFO L226 Difference]: Without dead ends: 11509 [2022-03-15 15:27:31,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:31,218 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:31,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 233 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:31,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11509 states. [2022-03-15 15:27:31,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11509 to 5301. [2022-03-15 15:27:31,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5301 states, 5300 states have (on average 4.725283018867924) internal successors, (25044), 5300 states have internal predecessors, (25044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:31,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5301 states to 5301 states and 25044 transitions. [2022-03-15 15:27:31,380 INFO L78 Accepts]: Start accepts. Automaton has 5301 states and 25044 transitions. Word has length 29 [2022-03-15 15:27:31,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:31,380 INFO L470 AbstractCegarLoop]: Abstraction has 5301 states and 25044 transitions. [2022-03-15 15:27:31,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:31,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5301 states and 25044 transitions. [2022-03-15 15:27:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:31,391 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:31,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:31,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-15 15:27:31,391 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:31,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:31,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1973525533, now seen corresponding path program 156 times [2022-03-15 15:27:31,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:31,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060039593] [2022-03-15 15:27:31,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:31,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:31,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:31,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060039593] [2022-03-15 15:27:31,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060039593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:31,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:31,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:31,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348626207] [2022-03-15 15:27:31,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:31,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:31,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:31,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:31,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:31,518 INFO L87 Difference]: Start difference. First operand 5301 states and 25044 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:31,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:31,722 INFO L93 Difference]: Finished difference Result 11980 states and 53488 transitions. [2022-03-15 15:27:31,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:31,722 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:31,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:31,757 INFO L225 Difference]: With dead ends: 11980 [2022-03-15 15:27:31,757 INFO L226 Difference]: Without dead ends: 11361 [2022-03-15 15:27:31,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:31,757 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 168 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:31,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 191 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:31,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11361 states. [2022-03-15 15:27:31,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11361 to 5153. [2022-03-15 15:27:31,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.752329192546584) internal successors, (24484), 5152 states have internal predecessors, (24484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:31,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24484 transitions. [2022-03-15 15:27:31,891 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24484 transitions. Word has length 29 [2022-03-15 15:27:31,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:31,891 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24484 transitions. [2022-03-15 15:27:31,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:31,891 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24484 transitions. [2022-03-15 15:27:31,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:31,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:31,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:31,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-15 15:27:31,901 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:31,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:31,901 INFO L85 PathProgramCache]: Analyzing trace with hash 831925601, now seen corresponding path program 157 times [2022-03-15 15:27:31,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:31,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900932070] [2022-03-15 15:27:31,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:31,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:32,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:32,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:32,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900932070] [2022-03-15 15:27:32,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900932070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:32,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:32,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:32,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492979906] [2022-03-15 15:27:32,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:32,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:32,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:32,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:32,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:32,063 INFO L87 Difference]: Start difference. First operand 5153 states and 24484 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:32,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:32,357 INFO L93 Difference]: Finished difference Result 11598 states and 51968 transitions. [2022-03-15 15:27:32,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:32,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:32,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:32,390 INFO L225 Difference]: With dead ends: 11598 [2022-03-15 15:27:32,390 INFO L226 Difference]: Without dead ends: 11183 [2022-03-15 15:27:32,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:32,391 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 175 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:32,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 215 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:32,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11183 states. [2022-03-15 15:27:32,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11183 to 5225. [2022-03-15 15:27:32,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.744257274119449) internal successors, (24784), 5224 states have internal predecessors, (24784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:32,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24784 transitions. [2022-03-15 15:27:32,531 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24784 transitions. Word has length 29 [2022-03-15 15:27:32,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:32,531 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24784 transitions. [2022-03-15 15:27:32,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:32,531 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24784 transitions. [2022-03-15 15:27:32,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:32,541 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:32,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:32,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-15 15:27:32,541 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:32,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:32,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1061212611, now seen corresponding path program 158 times [2022-03-15 15:27:32,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:32,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602981400] [2022-03-15 15:27:32,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:32,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:32,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:32,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:32,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602981400] [2022-03-15 15:27:32,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602981400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:32,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:32,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:32,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203851808] [2022-03-15 15:27:32,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:32,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:32,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:32,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:32,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:32,714 INFO L87 Difference]: Start difference. First operand 5225 states and 24784 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:32,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:32,955 INFO L93 Difference]: Finished difference Result 11660 states and 52189 transitions. [2022-03-15 15:27:32,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:32,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:32,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:32,988 INFO L225 Difference]: With dead ends: 11660 [2022-03-15 15:27:32,988 INFO L226 Difference]: Without dead ends: 11135 [2022-03-15 15:27:32,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:32,988 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 147 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:32,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 243 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:33,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11135 states. [2022-03-15 15:27:33,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11135 to 5177. [2022-03-15 15:27:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.749613601236476) internal successors, (24584), 5176 states have internal predecessors, (24584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:33,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24584 transitions. [2022-03-15 15:27:33,126 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24584 transitions. Word has length 29 [2022-03-15 15:27:33,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:33,126 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24584 transitions. [2022-03-15 15:27:33,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:33,126 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24584 transitions. [2022-03-15 15:27:33,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:33,136 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:33,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:33,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-15 15:27:33,136 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:33,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:33,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1035091773, now seen corresponding path program 159 times [2022-03-15 15:27:33,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:33,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347894354] [2022-03-15 15:27:33,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:33,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:33,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:33,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347894354] [2022-03-15 15:27:33,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347894354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:33,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:33,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:33,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269126066] [2022-03-15 15:27:33,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:33,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:33,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:33,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:33,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:33,313 INFO L87 Difference]: Start difference. First operand 5177 states and 24584 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:33,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:33,527 INFO L93 Difference]: Finished difference Result 11592 states and 51927 transitions. [2022-03-15 15:27:33,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:33,527 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:33,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:33,563 INFO L225 Difference]: With dead ends: 11592 [2022-03-15 15:27:33,563 INFO L226 Difference]: Without dead ends: 11177 [2022-03-15 15:27:33,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:33,564 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 172 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:33,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 201 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:33,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11177 states. [2022-03-15 15:27:33,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11177 to 5225. [2022-03-15 15:27:33,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.7396630934150075) internal successors, (24760), 5224 states have internal predecessors, (24760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:33,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24760 transitions. [2022-03-15 15:27:33,874 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24760 transitions. Word has length 29 [2022-03-15 15:27:33,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:33,874 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24760 transitions. [2022-03-15 15:27:33,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:33,874 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24760 transitions. [2022-03-15 15:27:33,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:33,884 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:33,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:33,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-15 15:27:33,885 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:33,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:33,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1917110339, now seen corresponding path program 160 times [2022-03-15 15:27:33,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:33,886 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393618801] [2022-03-15 15:27:33,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:33,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:34,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:34,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393618801] [2022-03-15 15:27:34,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393618801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:34,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:34,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:34,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528402672] [2022-03-15 15:27:34,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:34,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:34,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:34,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:34,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:34,047 INFO L87 Difference]: Start difference. First operand 5225 states and 24760 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:34,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:34,274 INFO L93 Difference]: Finished difference Result 11648 states and 52131 transitions. [2022-03-15 15:27:34,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:34,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:34,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:34,308 INFO L225 Difference]: With dead ends: 11648 [2022-03-15 15:27:34,308 INFO L226 Difference]: Without dead ends: 11129 [2022-03-15 15:27:34,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:34,308 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 147 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:34,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 226 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:34,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11129 states. [2022-03-15 15:27:34,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11129 to 5177. [2022-03-15 15:27:34,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.744976816074189) internal successors, (24560), 5176 states have internal predecessors, (24560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:34,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24560 transitions. [2022-03-15 15:27:34,454 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24560 transitions. Word has length 29 [2022-03-15 15:27:34,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:34,456 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24560 transitions. [2022-03-15 15:27:34,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:34,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24560 transitions. [2022-03-15 15:27:34,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:34,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:34,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:34,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-15 15:27:34,467 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:34,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:34,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1201998885, now seen corresponding path program 161 times [2022-03-15 15:27:34,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:34,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709490956] [2022-03-15 15:27:34,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:34,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:34,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:34,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:34,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709490956] [2022-03-15 15:27:34,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709490956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:34,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:34,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:34,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4259120] [2022-03-15 15:27:34,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:34,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:34,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:34,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:34,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:34,627 INFO L87 Difference]: Start difference. First operand 5177 states and 24560 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:34,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:34,856 INFO L93 Difference]: Finished difference Result 11744 states and 52581 transitions. [2022-03-15 15:27:34,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:34,856 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:34,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:34,889 INFO L225 Difference]: With dead ends: 11744 [2022-03-15 15:27:34,889 INFO L226 Difference]: Without dead ends: 11267 [2022-03-15 15:27:34,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:34,889 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:34,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 219 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:34,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11267 states. [2022-03-15 15:27:35,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11267 to 5253. [2022-03-15 15:27:35,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.731150038080731) internal successors, (24848), 5252 states have internal predecessors, (24848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:35,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24848 transitions. [2022-03-15 15:27:35,028 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24848 transitions. Word has length 29 [2022-03-15 15:27:35,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:35,028 INFO L470 AbstractCegarLoop]: Abstraction has 5253 states and 24848 transitions. [2022-03-15 15:27:35,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:35,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24848 transitions. [2022-03-15 15:27:35,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:35,038 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:35,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:35,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-15 15:27:35,038 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:35,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:35,038 INFO L85 PathProgramCache]: Analyzing trace with hash 461046787, now seen corresponding path program 162 times [2022-03-15 15:27:35,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:35,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509382615] [2022-03-15 15:27:35,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:35,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:35,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:35,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509382615] [2022-03-15 15:27:35,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509382615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:35,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:35,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:35,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514487105] [2022-03-15 15:27:35,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:35,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:35,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:35,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:35,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:35,211 INFO L87 Difference]: Start difference. First operand 5253 states and 24848 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:35,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:35,423 INFO L93 Difference]: Finished difference Result 11738 states and 52488 transitions. [2022-03-15 15:27:35,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:35,423 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:35,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:35,461 INFO L225 Difference]: With dead ends: 11738 [2022-03-15 15:27:35,461 INFO L226 Difference]: Without dead ends: 11167 [2022-03-15 15:27:35,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:35,461 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 157 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:35,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 200 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:35,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11167 states. [2022-03-15 15:27:35,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11167 to 5153. [2022-03-15 15:27:35,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.75) internal successors, (24472), 5152 states have internal predecessors, (24472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:35,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24472 transitions. [2022-03-15 15:27:35,605 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24472 transitions. Word has length 29 [2022-03-15 15:27:35,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:35,605 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24472 transitions. [2022-03-15 15:27:35,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:35,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24472 transitions. [2022-03-15 15:27:35,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:35,615 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:35,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:35,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-15 15:27:35,615 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:35,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:35,616 INFO L85 PathProgramCache]: Analyzing trace with hash 19408359, now seen corresponding path program 163 times [2022-03-15 15:27:35,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:35,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787443036] [2022-03-15 15:27:35,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:35,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:35,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:35,781 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:35,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787443036] [2022-03-15 15:27:35,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787443036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:35,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:35,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:35,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614034414] [2022-03-15 15:27:35,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:35,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:35,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:35,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:35,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:35,782 INFO L87 Difference]: Start difference. First operand 5153 states and 24472 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:35,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:35,979 INFO L93 Difference]: Finished difference Result 12275 states and 54854 transitions. [2022-03-15 15:27:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:35,980 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:35,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:36,015 INFO L225 Difference]: With dead ends: 12275 [2022-03-15 15:27:36,015 INFO L226 Difference]: Without dead ends: 11733 [2022-03-15 15:27:36,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:36,016 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 180 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:36,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 196 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:36,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11733 states. [2022-03-15 15:27:36,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11733 to 5366. [2022-03-15 15:27:36,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 4.7224603914259085) internal successors, (25336), 5365 states have internal predecessors, (25336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:36,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 25336 transitions. [2022-03-15 15:27:36,165 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 25336 transitions. Word has length 29 [2022-03-15 15:27:36,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:36,165 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 25336 transitions. [2022-03-15 15:27:36,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:36,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 25336 transitions. [2022-03-15 15:27:36,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:36,175 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:36,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:36,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-15 15:27:36,175 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:36,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:36,176 INFO L85 PathProgramCache]: Analyzing trace with hash -2023928635, now seen corresponding path program 164 times [2022-03-15 15:27:36,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:36,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724436775] [2022-03-15 15:27:36,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:36,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:36,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:36,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:36,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724436775] [2022-03-15 15:27:36,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724436775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:36,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:36,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:36,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193644721] [2022-03-15 15:27:36,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:36,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:36,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:36,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:36,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:36,342 INFO L87 Difference]: Start difference. First operand 5366 states and 25336 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:36,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:36,550 INFO L93 Difference]: Finished difference Result 12210 states and 54485 transitions. [2022-03-15 15:27:36,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:36,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:36,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:36,582 INFO L225 Difference]: With dead ends: 12210 [2022-03-15 15:27:36,582 INFO L226 Difference]: Without dead ends: 11590 [2022-03-15 15:27:36,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:36,582 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 152 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:36,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 228 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:36,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11590 states. [2022-03-15 15:27:36,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11590 to 5223. [2022-03-15 15:27:36,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.7389888931443895) internal successors, (24747), 5222 states have internal predecessors, (24747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:36,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24747 transitions. [2022-03-15 15:27:36,737 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24747 transitions. Word has length 29 [2022-03-15 15:27:36,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:36,737 INFO L470 AbstractCegarLoop]: Abstraction has 5223 states and 24747 transitions. [2022-03-15 15:27:36,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:36,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24747 transitions. [2022-03-15 15:27:36,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:36,747 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:36,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:36,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-15 15:27:36,747 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:36,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:36,747 INFO L85 PathProgramCache]: Analyzing trace with hash 929013317, now seen corresponding path program 165 times [2022-03-15 15:27:36,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:36,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496864114] [2022-03-15 15:27:36,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:36,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:36,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:36,878 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:36,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496864114] [2022-03-15 15:27:36,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496864114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:36,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:36,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:36,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186654852] [2022-03-15 15:27:36,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:36,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:36,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:36,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:36,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:36,879 INFO L87 Difference]: Start difference. First operand 5223 states and 24747 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:37,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:37,047 INFO L93 Difference]: Finished difference Result 12234 states and 54645 transitions. [2022-03-15 15:27:37,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:37,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:37,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:37,082 INFO L225 Difference]: With dead ends: 12234 [2022-03-15 15:27:37,082 INFO L226 Difference]: Without dead ends: 11692 [2022-03-15 15:27:37,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:37,083 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:37,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 212 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:37,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11692 states. [2022-03-15 15:27:37,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11692 to 5331. [2022-03-15 15:27:37,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 4.718011257035648) internal successors, (25147), 5330 states have internal predecessors, (25147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:37,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 25147 transitions. [2022-03-15 15:27:37,228 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 25147 transitions. Word has length 29 [2022-03-15 15:27:37,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:37,228 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 25147 transitions. [2022-03-15 15:27:37,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:37,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 25147 transitions. [2022-03-15 15:27:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:37,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:37,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:37,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-15 15:27:37,238 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:37,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:37,239 INFO L85 PathProgramCache]: Analyzing trace with hash 848123461, now seen corresponding path program 166 times [2022-03-15 15:27:37,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:37,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197884036] [2022-03-15 15:27:37,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:37,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:37,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:37,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197884036] [2022-03-15 15:27:37,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197884036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:37,398 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:37,398 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:37,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274231704] [2022-03-15 15:27:37,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:37,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:37,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:37,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:37,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:37,399 INFO L87 Difference]: Start difference. First operand 5331 states and 25147 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:37,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:37,601 INFO L93 Difference]: Finished difference Result 12163 states and 54262 transitions. [2022-03-15 15:27:37,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:37,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:37,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:37,635 INFO L225 Difference]: With dead ends: 12163 [2022-03-15 15:27:37,636 INFO L226 Difference]: Without dead ends: 11584 [2022-03-15 15:27:37,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:37,636 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 167 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:37,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 206 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:37,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11584 states. [2022-03-15 15:27:37,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11584 to 5223. [2022-03-15 15:27:37,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.728648027575642) internal successors, (24693), 5222 states have internal predecessors, (24693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:37,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24693 transitions. [2022-03-15 15:27:37,781 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24693 transitions. Word has length 29 [2022-03-15 15:27:37,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:37,781 INFO L470 AbstractCegarLoop]: Abstraction has 5223 states and 24693 transitions. [2022-03-15 15:27:37,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:37,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24693 transitions. [2022-03-15 15:27:37,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:37,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:37,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:37,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-15 15:27:37,792 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:37,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:37,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1911360931, now seen corresponding path program 167 times [2022-03-15 15:27:37,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:37,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97431235] [2022-03-15 15:27:37,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:37,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:37,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:37,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:37,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97431235] [2022-03-15 15:27:37,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97431235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:37,934 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:37,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:37,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645125912] [2022-03-15 15:27:37,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:37,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:37,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:37,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:37,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:37,935 INFO L87 Difference]: Start difference. First operand 5223 states and 24693 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:38,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:38,133 INFO L93 Difference]: Finished difference Result 12072 states and 53931 transitions. [2022-03-15 15:27:38,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:38,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:38,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:38,167 INFO L225 Difference]: With dead ends: 12072 [2022-03-15 15:27:38,168 INFO L226 Difference]: Without dead ends: 11595 [2022-03-15 15:27:38,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:38,168 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 167 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:38,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 208 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:38,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11595 states. [2022-03-15 15:27:38,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11595 to 5299. [2022-03-15 15:27:38,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 4.715175537938845) internal successors, (24981), 5298 states have internal predecessors, (24981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:38,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 24981 transitions. [2022-03-15 15:27:38,318 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 24981 transitions. Word has length 29 [2022-03-15 15:27:38,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:38,319 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 24981 transitions. [2022-03-15 15:27:38,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:38,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 24981 transitions. [2022-03-15 15:27:38,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:38,329 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:38,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:38,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-15 15:27:38,329 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:38,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:38,330 INFO L85 PathProgramCache]: Analyzing trace with hash 416682373, now seen corresponding path program 168 times [2022-03-15 15:27:38,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:38,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109982313] [2022-03-15 15:27:38,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:38,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:38,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:38,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:38,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109982313] [2022-03-15 15:27:38,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109982313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:38,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:38,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:38,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416660451] [2022-03-15 15:27:38,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:38,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:38,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:38,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:38,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:38,474 INFO L87 Difference]: Start difference. First operand 5299 states and 24981 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:38,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:38,707 INFO L93 Difference]: Finished difference Result 12066 states and 53838 transitions. [2022-03-15 15:27:38,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:38,708 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:38,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:38,744 INFO L225 Difference]: With dead ends: 12066 [2022-03-15 15:27:38,744 INFO L226 Difference]: Without dead ends: 11421 [2022-03-15 15:27:38,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:38,749 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 171 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:38,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 189 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:38,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11421 states. [2022-03-15 15:27:38,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11421 to 5125. [2022-03-15 15:27:38,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.756049960967994) internal successors, (24370), 5124 states have internal predecessors, (24370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:38,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24370 transitions. [2022-03-15 15:27:38,898 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24370 transitions. Word has length 29 [2022-03-15 15:27:38,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:38,898 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24370 transitions. [2022-03-15 15:27:38,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:38,898 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24370 transitions. [2022-03-15 15:27:38,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:38,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:38,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:38,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-15 15:27:38,908 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:38,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:38,908 INFO L85 PathProgramCache]: Analyzing trace with hash 764198245, now seen corresponding path program 169 times [2022-03-15 15:27:38,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:38,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992669009] [2022-03-15 15:27:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:38,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:39,151 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:39,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992669009] [2022-03-15 15:27:39,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992669009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:39,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:39,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:39,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448080170] [2022-03-15 15:27:39,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:39,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:39,152 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:39,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:39,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:39,152 INFO L87 Difference]: Start difference. First operand 5125 states and 24370 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:39,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:39,390 INFO L93 Difference]: Finished difference Result 11771 states and 52765 transitions. [2022-03-15 15:27:39,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:39,390 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:39,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:39,426 INFO L225 Difference]: With dead ends: 11771 [2022-03-15 15:27:39,426 INFO L226 Difference]: Without dead ends: 11356 [2022-03-15 15:27:39,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:39,426 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 160 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:39,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 221 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:39,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11356 states. [2022-03-15 15:27:39,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11356 to 5265. [2022-03-15 15:27:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.750379939209727) internal successors, (25006), 5264 states have internal predecessors, (25006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 25006 transitions. [2022-03-15 15:27:39,588 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 25006 transitions. Word has length 29 [2022-03-15 15:27:39,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:39,588 INFO L470 AbstractCegarLoop]: Abstraction has 5265 states and 25006 transitions. [2022-03-15 15:27:39,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:39,588 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 25006 transitions. [2022-03-15 15:27:39,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:39,598 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:39,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:39,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-15 15:27:39,598 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:39,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:39,599 INFO L85 PathProgramCache]: Analyzing trace with hash -221005785, now seen corresponding path program 170 times [2022-03-15 15:27:39,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:39,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684168147] [2022-03-15 15:27:39,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:39,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:39,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:39,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:39,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684168147] [2022-03-15 15:27:39,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684168147] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:39,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:39,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:39,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667054557] [2022-03-15 15:27:39,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:39,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:39,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:39,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:39,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:39,803 INFO L87 Difference]: Start difference. First operand 5265 states and 25006 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:39,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:39,980 INFO L93 Difference]: Finished difference Result 11898 states and 53244 transitions. [2022-03-15 15:27:39,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:39,981 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:39,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:40,020 INFO L225 Difference]: With dead ends: 11898 [2022-03-15 15:27:40,021 INFO L226 Difference]: Without dead ends: 11276 [2022-03-15 15:27:40,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:40,021 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 173 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:40,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 201 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:40,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11276 states. [2022-03-15 15:27:40,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11276 to 5185. [2022-03-15 15:27:40,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.754243827160494) internal successors, (24646), 5184 states have internal predecessors, (24646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:40,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24646 transitions. [2022-03-15 15:27:40,188 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24646 transitions. Word has length 29 [2022-03-15 15:27:40,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:40,189 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24646 transitions. [2022-03-15 15:27:40,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:40,189 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24646 transitions. [2022-03-15 15:27:40,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:40,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:40,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:40,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-15 15:27:40,200 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:40,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:40,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1123305213, now seen corresponding path program 171 times [2022-03-15 15:27:40,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:40,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432873808] [2022-03-15 15:27:40,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:40,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:40,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:40,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:40,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432873808] [2022-03-15 15:27:40,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432873808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:40,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:40,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:40,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133095174] [2022-03-15 15:27:40,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:40,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:40,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:40,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:40,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:40,387 INFO L87 Difference]: Start difference. First operand 5185 states and 24646 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:40,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:40,616 INFO L93 Difference]: Finished difference Result 11672 states and 52318 transitions. [2022-03-15 15:27:40,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:40,616 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:40,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:40,653 INFO L225 Difference]: With dead ends: 11672 [2022-03-15 15:27:40,653 INFO L226 Difference]: Without dead ends: 11257 [2022-03-15 15:27:40,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:40,653 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 169 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:40,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 217 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:40,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11257 states. [2022-03-15 15:27:40,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11257 to 5233. [2022-03-15 15:27:40,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.7442660550458715) internal successors, (24822), 5232 states have internal predecessors, (24822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:40,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24822 transitions. [2022-03-15 15:27:40,911 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24822 transitions. Word has length 29 [2022-03-15 15:27:40,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:40,911 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24822 transitions. [2022-03-15 15:27:40,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:40,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24822 transitions. [2022-03-15 15:27:40,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:40,922 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:40,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:40,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-15 15:27:40,922 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:40,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:40,923 INFO L85 PathProgramCache]: Analyzing trace with hash -2125362075, now seen corresponding path program 172 times [2022-03-15 15:27:40,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:40,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86251270] [2022-03-15 15:27:40,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:40,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:41,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:41,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:41,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86251270] [2022-03-15 15:27:41,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86251270] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:41,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:41,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:41,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436320433] [2022-03-15 15:27:41,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:41,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:41,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:41,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:41,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:41,072 INFO L87 Difference]: Start difference. First operand 5233 states and 24822 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:41,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:41,253 INFO L93 Difference]: Finished difference Result 11732 states and 52534 transitions. [2022-03-15 15:27:41,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:41,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:41,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:41,290 INFO L225 Difference]: With dead ends: 11732 [2022-03-15 15:27:41,290 INFO L226 Difference]: Without dead ends: 11209 [2022-03-15 15:27:41,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:41,290 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 173 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:41,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 214 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:41,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2022-03-15 15:27:41,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 5185. [2022-03-15 15:27:41,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.749614197530864) internal successors, (24622), 5184 states have internal predecessors, (24622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:41,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24622 transitions. [2022-03-15 15:27:41,449 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24622 transitions. Word has length 29 [2022-03-15 15:27:41,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:41,449 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24622 transitions. [2022-03-15 15:27:41,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:41,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24622 transitions. [2022-03-15 15:27:41,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:41,459 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:41,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:41,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-15 15:27:41,460 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:41,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:41,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1735258457, now seen corresponding path program 173 times [2022-03-15 15:27:41,460 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:41,460 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858171109] [2022-03-15 15:27:41,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:41,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:41,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:41,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:41,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858171109] [2022-03-15 15:27:41,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858171109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:41,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:41,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:41,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141476835] [2022-03-15 15:27:41,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:41,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:41,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:41,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:41,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:41,571 INFO L87 Difference]: Start difference. First operand 5185 states and 24622 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:41,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:41,740 INFO L93 Difference]: Finished difference Result 11988 states and 53639 transitions. [2022-03-15 15:27:41,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:41,740 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:41,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:41,780 INFO L225 Difference]: With dead ends: 11988 [2022-03-15 15:27:41,780 INFO L226 Difference]: Without dead ends: 11446 [2022-03-15 15:27:41,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:41,780 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 157 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:41,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 216 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:41,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11446 states. [2022-03-15 15:27:41,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11446 to 5295. [2022-03-15 15:27:41,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 4.727427276161692) internal successors, (25027), 5294 states have internal predecessors, (25027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:41,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 25027 transitions. [2022-03-15 15:27:41,963 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 25027 transitions. Word has length 29 [2022-03-15 15:27:41,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:41,964 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 25027 transitions. [2022-03-15 15:27:41,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 25027 transitions. [2022-03-15 15:27:41,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:41,976 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:41,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:41,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-15 15:27:41,976 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:41,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:41,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1818756741, now seen corresponding path program 174 times [2022-03-15 15:27:41,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:41,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753660652] [2022-03-15 15:27:41,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:41,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:42,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:42,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:42,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753660652] [2022-03-15 15:27:42,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753660652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:42,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:42,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:42,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683337779] [2022-03-15 15:27:42,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:42,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:42,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:42,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:42,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:42,086 INFO L87 Difference]: Start difference. First operand 5295 states and 25027 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:42,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:42,278 INFO L93 Difference]: Finished difference Result 11921 states and 53266 transitions. [2022-03-15 15:27:42,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:42,278 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:42,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:42,313 INFO L225 Difference]: With dead ends: 11921 [2022-03-15 15:27:42,313 INFO L226 Difference]: Without dead ends: 11296 [2022-03-15 15:27:42,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:42,314 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 183 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:42,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 190 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:42,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11296 states. [2022-03-15 15:27:42,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11296 to 5145. [2022-03-15 15:27:42,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.755443234836703) internal successors, (24462), 5144 states have internal predecessors, (24462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:42,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24462 transitions. [2022-03-15 15:27:42,458 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24462 transitions. Word has length 29 [2022-03-15 15:27:42,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:42,458 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24462 transitions. [2022-03-15 15:27:42,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:42,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24462 transitions. [2022-03-15 15:27:42,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:42,468 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:42,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:42,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-15 15:27:42,468 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:42,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:42,468 INFO L85 PathProgramCache]: Analyzing trace with hash -2072721981, now seen corresponding path program 175 times [2022-03-15 15:27:42,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:42,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669393193] [2022-03-15 15:27:42,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:42,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:42,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:42,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:42,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669393193] [2022-03-15 15:27:42,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669393193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:42,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:42,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:42,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030483181] [2022-03-15 15:27:42,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:42,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:42,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:42,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:42,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:42,629 INFO L87 Difference]: Start difference. First operand 5145 states and 24462 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:42,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:42,867 INFO L93 Difference]: Finished difference Result 11765 states and 52726 transitions. [2022-03-15 15:27:42,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:42,867 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:42,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:42,906 INFO L225 Difference]: With dead ends: 11765 [2022-03-15 15:27:42,907 INFO L226 Difference]: Without dead ends: 11350 [2022-03-15 15:27:42,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:42,907 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 155 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:42,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 239 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:42,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11350 states. [2022-03-15 15:27:43,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11350 to 5265. [2022-03-15 15:27:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.746580547112462) internal successors, (24986), 5264 states have internal predecessors, (24986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:43,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24986 transitions. [2022-03-15 15:27:43,065 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24986 transitions. Word has length 29 [2022-03-15 15:27:43,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:43,066 INFO L470 AbstractCegarLoop]: Abstraction has 5265 states and 24986 transitions. [2022-03-15 15:27:43,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:43,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24986 transitions. [2022-03-15 15:27:43,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:43,076 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:43,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:43,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-15 15:27:43,076 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:43,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:43,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1237041285, now seen corresponding path program 176 times [2022-03-15 15:27:43,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:43,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396569820] [2022-03-15 15:27:43,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:43,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:43,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:43,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:43,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396569820] [2022-03-15 15:27:43,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396569820] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:43,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:43,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:43,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4635047] [2022-03-15 15:27:43,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:43,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:43,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:43,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:43,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:43,196 INFO L87 Difference]: Start difference. First operand 5265 states and 24986 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:43,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:43,393 INFO L93 Difference]: Finished difference Result 11892 states and 53205 transitions. [2022-03-15 15:27:43,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:43,393 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:43,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:43,428 INFO L225 Difference]: With dead ends: 11892 [2022-03-15 15:27:43,428 INFO L226 Difference]: Without dead ends: 11270 [2022-03-15 15:27:43,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:43,428 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 153 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:43,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 250 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:43,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11270 states. [2022-03-15 15:27:43,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11270 to 5185. [2022-03-15 15:27:43,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.750385802469136) internal successors, (24626), 5184 states have internal predecessors, (24626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:43,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24626 transitions. [2022-03-15 15:27:43,600 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24626 transitions. Word has length 29 [2022-03-15 15:27:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:43,601 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24626 transitions. [2022-03-15 15:27:43,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:43,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24626 transitions. [2022-03-15 15:27:43,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:43,613 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:43,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:43,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-15 15:27:43,614 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:43,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:43,614 INFO L85 PathProgramCache]: Analyzing trace with hash -82189949, now seen corresponding path program 177 times [2022-03-15 15:27:43,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:43,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375058377] [2022-03-15 15:27:43,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:43,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:43,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:43,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:43,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375058377] [2022-03-15 15:27:43,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375058377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:43,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:43,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:43,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47084858] [2022-03-15 15:27:43,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:43,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:43,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:43,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:43,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:43,751 INFO L87 Difference]: Start difference. First operand 5185 states and 24626 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:43,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:43,941 INFO L93 Difference]: Finished difference Result 11662 states and 52267 transitions. [2022-03-15 15:27:43,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:43,941 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:43,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:43,979 INFO L225 Difference]: With dead ends: 11662 [2022-03-15 15:27:43,980 INFO L226 Difference]: Without dead ends: 11247 [2022-03-15 15:27:43,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:43,980 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 167 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:43,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 229 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2022-03-15 15:27:44,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 5233. [2022-03-15 15:27:44,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.740443425076452) internal successors, (24802), 5232 states have internal predecessors, (24802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:44,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24802 transitions. [2022-03-15 15:27:44,133 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24802 transitions. Word has length 29 [2022-03-15 15:27:44,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:44,133 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24802 transitions. [2022-03-15 15:27:44,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:44,133 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24802 transitions. [2022-03-15 15:27:44,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:44,143 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:44,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:44,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-15 15:27:44,144 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:44,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:44,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1699918747, now seen corresponding path program 178 times [2022-03-15 15:27:44,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:44,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645520449] [2022-03-15 15:27:44,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:44,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:44,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:44,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:44,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645520449] [2022-03-15 15:27:44,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645520449] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:44,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:44,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:44,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898506133] [2022-03-15 15:27:44,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:44,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:44,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:44,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:44,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:44,303 INFO L87 Difference]: Start difference. First operand 5233 states and 24802 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:44,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:44,527 INFO L93 Difference]: Finished difference Result 11718 states and 52471 transitions. [2022-03-15 15:27:44,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:44,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:44,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:44,562 INFO L225 Difference]: With dead ends: 11718 [2022-03-15 15:27:44,563 INFO L226 Difference]: Without dead ends: 11199 [2022-03-15 15:27:44,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:44,563 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 159 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:44,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 217 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:44,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11199 states. [2022-03-15 15:27:44,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11199 to 5185. [2022-03-15 15:27:44,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.745756172839506) internal successors, (24602), 5184 states have internal predecessors, (24602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:44,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24602 transitions. [2022-03-15 15:27:44,719 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24602 transitions. Word has length 29 [2022-03-15 15:27:44,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:44,719 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24602 transitions. [2022-03-15 15:27:44,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:44,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24602 transitions. [2022-03-15 15:27:44,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:44,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:44,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:44,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-15 15:27:44,730 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:44,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:44,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1982013785, now seen corresponding path program 179 times [2022-03-15 15:27:44,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:44,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183837983] [2022-03-15 15:27:44,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:44,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:44,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:44,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:44,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183837983] [2022-03-15 15:27:44,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183837983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:44,869 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:44,869 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:44,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592099657] [2022-03-15 15:27:44,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:44,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:44,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:44,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:44,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:44,870 INFO L87 Difference]: Start difference. First operand 5185 states and 24602 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:45,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:45,032 INFO L93 Difference]: Finished difference Result 11976 states and 53581 transitions. [2022-03-15 15:27:45,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:45,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:45,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:45,069 INFO L225 Difference]: With dead ends: 11976 [2022-03-15 15:27:45,069 INFO L226 Difference]: Without dead ends: 11434 [2022-03-15 15:27:45,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:45,069 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:45,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 208 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:45,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11434 states. [2022-03-15 15:27:45,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11434 to 5293. [2022-03-15 15:27:45,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 4.724489795918367) internal successors, (25002), 5292 states have internal predecessors, (25002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:45,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 25002 transitions. [2022-03-15 15:27:45,227 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 25002 transitions. Word has length 29 [2022-03-15 15:27:45,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:45,227 INFO L470 AbstractCegarLoop]: Abstraction has 5293 states and 25002 transitions. [2022-03-15 15:27:45,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:45,227 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 25002 transitions. [2022-03-15 15:27:45,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:45,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:45,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:45,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-15 15:27:45,238 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:45,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:45,238 INFO L85 PathProgramCache]: Analyzing trace with hash -2071773435, now seen corresponding path program 180 times [2022-03-15 15:27:45,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:45,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221092902] [2022-03-15 15:27:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:45,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:45,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:45,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:45,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221092902] [2022-03-15 15:27:45,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221092902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:45,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:45,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:45,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976583757] [2022-03-15 15:27:45,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:45,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:45,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:45,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:45,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:45,355 INFO L87 Difference]: Start difference. First operand 5293 states and 25002 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:45,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:45,537 INFO L93 Difference]: Finished difference Result 11905 states and 53198 transitions. [2022-03-15 15:27:45,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:45,537 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:45,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:45,575 INFO L225 Difference]: With dead ends: 11905 [2022-03-15 15:27:45,575 INFO L226 Difference]: Without dead ends: 11286 [2022-03-15 15:27:45,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:45,575 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:45,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 222 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:45,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11286 states. [2022-03-15 15:27:45,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11286 to 5145. [2022-03-15 15:27:45,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.751555209953343) internal successors, (24442), 5144 states have internal predecessors, (24442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:45,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24442 transitions. [2022-03-15 15:27:45,741 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24442 transitions. Word has length 29 [2022-03-15 15:27:45,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:45,741 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24442 transitions. [2022-03-15 15:27:45,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:45,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24442 transitions. [2022-03-15 15:27:45,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:45,752 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:45,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:45,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-15 15:27:45,752 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:45,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:45,752 INFO L85 PathProgramCache]: Analyzing trace with hash 465526177, now seen corresponding path program 181 times [2022-03-15 15:27:45,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:45,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125535754] [2022-03-15 15:27:45,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:45,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:45,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:45,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125535754] [2022-03-15 15:27:45,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125535754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:45,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:45,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:45,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212090462] [2022-03-15 15:27:45,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:45,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:45,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:45,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:45,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:45,926 INFO L87 Difference]: Start difference. First operand 5145 states and 24442 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:46,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:46,168 INFO L93 Difference]: Finished difference Result 11519 states and 51668 transitions. [2022-03-15 15:27:46,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:46,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:46,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:46,204 INFO L225 Difference]: With dead ends: 11519 [2022-03-15 15:27:46,204 INFO L226 Difference]: Without dead ends: 11104 [2022-03-15 15:27:46,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:46,204 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 164 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:46,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 235 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:46,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2022-03-15 15:27:46,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 5217. [2022-03-15 15:27:46,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.743481595092025) internal successors, (24742), 5216 states have internal predecessors, (24742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:46,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24742 transitions. [2022-03-15 15:27:46,355 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24742 transitions. Word has length 29 [2022-03-15 15:27:46,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:46,355 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24742 transitions. [2022-03-15 15:27:46,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:46,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24742 transitions. [2022-03-15 15:27:46,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:46,365 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:46,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:46,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-15 15:27:46,365 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:46,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:46,365 INFO L85 PathProgramCache]: Analyzing trace with hash -536530685, now seen corresponding path program 182 times [2022-03-15 15:27:46,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:46,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745968922] [2022-03-15 15:27:46,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:46,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:46,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:46,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:46,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745968922] [2022-03-15 15:27:46,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745968922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:46,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:46,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:46,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218322251] [2022-03-15 15:27:46,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:46,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:46,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:46,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:46,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:46,565 INFO L87 Difference]: Start difference. First operand 5217 states and 24742 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:46,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:46,783 INFO L93 Difference]: Finished difference Result 11579 states and 51884 transitions. [2022-03-15 15:27:46,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:46,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:46,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:46,817 INFO L225 Difference]: With dead ends: 11579 [2022-03-15 15:27:46,818 INFO L226 Difference]: Without dead ends: 11056 [2022-03-15 15:27:46,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:46,818 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 174 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:46,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 201 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:46,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2022-03-15 15:27:46,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5169. [2022-03-15 15:27:46,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.748839009287925) internal successors, (24542), 5168 states have internal predecessors, (24542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:46,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24542 transitions. [2022-03-15 15:27:46,969 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24542 transitions. Word has length 29 [2022-03-15 15:27:46,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:46,969 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24542 transitions. [2022-03-15 15:27:46,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:46,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24542 transitions. [2022-03-15 15:27:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:46,980 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:46,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:46,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-15 15:27:46,980 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:46,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:46,981 INFO L85 PathProgramCache]: Analyzing trace with hash -15375869, now seen corresponding path program 183 times [2022-03-15 15:27:46,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:46,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767693725] [2022-03-15 15:27:46,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:46,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:47,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:47,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767693725] [2022-03-15 15:27:47,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767693725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:47,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:47,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:47,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157247294] [2022-03-15 15:27:47,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:47,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:47,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:47,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:47,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:47,163 INFO L87 Difference]: Start difference. First operand 5169 states and 24542 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:47,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:47,396 INFO L93 Difference]: Finished difference Result 11515 states and 51632 transitions. [2022-03-15 15:27:47,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:47,396 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:47,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:47,433 INFO L225 Difference]: With dead ends: 11515 [2022-03-15 15:27:47,433 INFO L226 Difference]: Without dead ends: 11100 [2022-03-15 15:27:47,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:47,433 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 160 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:47,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 214 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:47,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11100 states. [2022-03-15 15:27:47,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11100 to 5217. [2022-03-15 15:27:47,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.73888036809816) internal successors, (24718), 5216 states have internal predecessors, (24718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:47,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24718 transitions. [2022-03-15 15:27:47,586 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24718 transitions. Word has length 29 [2022-03-15 15:27:47,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:47,586 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24718 transitions. [2022-03-15 15:27:47,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:47,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24718 transitions. [2022-03-15 15:27:47,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:47,596 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:47,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:47,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-15 15:27:47,597 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:47,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:47,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1180424323, now seen corresponding path program 184 times [2022-03-15 15:27:47,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:47,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834366612] [2022-03-15 15:27:47,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:47,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:47,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:47,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:47,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:47,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834366612] [2022-03-15 15:27:47,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834366612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:47,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:47,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:47,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485899885] [2022-03-15 15:27:47,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:47,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:47,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:47,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:47,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:47,813 INFO L87 Difference]: Start difference. First operand 5217 states and 24718 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:48,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:48,072 INFO L93 Difference]: Finished difference Result 11571 states and 51836 transitions. [2022-03-15 15:27:48,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:48,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:48,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:48,109 INFO L225 Difference]: With dead ends: 11571 [2022-03-15 15:27:48,109 INFO L226 Difference]: Without dead ends: 11052 [2022-03-15 15:27:48,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:48,110 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 147 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:48,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 295 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:27:48,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11052 states. [2022-03-15 15:27:48,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11052 to 5169. [2022-03-15 15:27:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.7441950464396285) internal successors, (24518), 5168 states have internal predecessors, (24518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:48,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24518 transitions. [2022-03-15 15:27:48,275 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24518 transitions. Word has length 29 [2022-03-15 15:27:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:48,275 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24518 transitions. [2022-03-15 15:27:48,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:48,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24518 transitions. [2022-03-15 15:27:48,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:48,285 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:48,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:48,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-15 15:27:48,286 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:48,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:48,286 INFO L85 PathProgramCache]: Analyzing trace with hash -395744411, now seen corresponding path program 185 times [2022-03-15 15:27:48,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:48,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211948885] [2022-03-15 15:27:48,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:48,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:48,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:48,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:48,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211948885] [2022-03-15 15:27:48,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211948885] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:48,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:48,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:48,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052439407] [2022-03-15 15:27:48,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:48,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:48,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:48,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:48,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:48,454 INFO L87 Difference]: Start difference. First operand 5169 states and 24518 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:48,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:48,691 INFO L93 Difference]: Finished difference Result 11663 states and 52276 transitions. [2022-03-15 15:27:48,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:48,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:48,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:48,727 INFO L225 Difference]: With dead ends: 11663 [2022-03-15 15:27:48,727 INFO L226 Difference]: Without dead ends: 11188 [2022-03-15 15:27:48,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:48,727 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:48,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 243 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:48,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11188 states. [2022-03-15 15:27:48,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11188 to 5245. [2022-03-15 15:27:48,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.730358504958048) internal successors, (24806), 5244 states have internal predecessors, (24806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:48,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24806 transitions. [2022-03-15 15:27:48,887 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24806 transitions. Word has length 29 [2022-03-15 15:27:48,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:48,887 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 24806 transitions. [2022-03-15 15:27:48,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:48,887 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24806 transitions. [2022-03-15 15:27:48,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:48,898 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:48,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:48,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-15 15:27:48,898 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:48,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:48,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1855885891, now seen corresponding path program 186 times [2022-03-15 15:27:48,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:48,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965379578] [2022-03-15 15:27:48,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:48,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:49,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:49,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:49,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965379578] [2022-03-15 15:27:49,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965379578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:49,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:49,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:49,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029761507] [2022-03-15 15:27:49,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:49,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:49,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:49,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:49,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:49,086 INFO L87 Difference]: Start difference. First operand 5245 states and 24806 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:49,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:49,313 INFO L93 Difference]: Finished difference Result 11659 states and 52188 transitions. [2022-03-15 15:27:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:49,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:49,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:49,347 INFO L225 Difference]: With dead ends: 11659 [2022-03-15 15:27:49,348 INFO L226 Difference]: Without dead ends: 11088 [2022-03-15 15:27:49,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:49,348 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 150 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:49,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 223 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:49,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11088 states. [2022-03-15 15:27:49,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11088 to 5145. [2022-03-15 15:27:49,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.749222395023328) internal successors, (24430), 5144 states have internal predecessors, (24430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:49,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24430 transitions. [2022-03-15 15:27:49,498 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24430 transitions. Word has length 29 [2022-03-15 15:27:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:49,498 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24430 transitions. [2022-03-15 15:27:49,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:49,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24430 transitions. [2022-03-15 15:27:49,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:49,509 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:49,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:49,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-15 15:27:49,509 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:49,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:49,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1372235047, now seen corresponding path program 187 times [2022-03-15 15:27:49,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:49,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146673782] [2022-03-15 15:27:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:49,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:49,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:49,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:49,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146673782] [2022-03-15 15:27:49,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146673782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:49,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:49,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:49,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981075711] [2022-03-15 15:27:49,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:49,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:49,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:49,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:49,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:49,667 INFO L87 Difference]: Start difference. First operand 5145 states and 24430 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:49,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:49,862 INFO L93 Difference]: Finished difference Result 12114 states and 54260 transitions. [2022-03-15 15:27:49,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:49,862 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:49,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:49,896 INFO L225 Difference]: With dead ends: 12114 [2022-03-15 15:27:49,896 INFO L226 Difference]: Without dead ends: 11572 [2022-03-15 15:27:49,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:49,896 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 161 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:49,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 223 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:49,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11572 states. [2022-03-15 15:27:50,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11572 to 5309. [2022-03-15 15:27:50,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5309 states, 5308 states have (on average 4.73172569706104) internal successors, (25116), 5308 states have internal predecessors, (25116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:50,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 25116 transitions. [2022-03-15 15:27:50,047 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 25116 transitions. Word has length 29 [2022-03-15 15:27:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:50,047 INFO L470 AbstractCegarLoop]: Abstraction has 5309 states and 25116 transitions. [2022-03-15 15:27:50,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:50,048 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 25116 transitions. [2022-03-15 15:27:50,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:50,058 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:50,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:50,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-15 15:27:50,058 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:50,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:50,058 INFO L85 PathProgramCache]: Analyzing trace with hash 631282949, now seen corresponding path program 188 times [2022-03-15 15:27:50,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:50,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913621274] [2022-03-15 15:27:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:50,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:50,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:50,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:50,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913621274] [2022-03-15 15:27:50,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913621274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:50,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:50,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:50,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29329387] [2022-03-15 15:27:50,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:50,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:50,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:50,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:50,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:50,224 INFO L87 Difference]: Start difference. First operand 5309 states and 25116 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:50,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:50,465 INFO L93 Difference]: Finished difference Result 12047 states and 53887 transitions. [2022-03-15 15:27:50,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:50,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:50,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:50,498 INFO L225 Difference]: With dead ends: 12047 [2022-03-15 15:27:50,498 INFO L226 Difference]: Without dead ends: 11462 [2022-03-15 15:27:50,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:50,499 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 154 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:50,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 239 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:27:50,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11462 states. [2022-03-15 15:27:50,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11462 to 5199. [2022-03-15 15:27:50,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.7435552135436705) internal successors, (24657), 5198 states have internal predecessors, (24657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:50,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24657 transitions. [2022-03-15 15:27:50,643 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24657 transitions. Word has length 29 [2022-03-15 15:27:50,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:50,644 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24657 transitions. [2022-03-15 15:27:50,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:50,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24657 transitions. [2022-03-15 15:27:50,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:50,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:50,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:50,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-15 15:27:50,654 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:50,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:50,654 INFO L85 PathProgramCache]: Analyzing trace with hash 525438085, now seen corresponding path program 189 times [2022-03-15 15:27:50,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:50,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633409713] [2022-03-15 15:27:50,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:50,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:50,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:50,791 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:50,791 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633409713] [2022-03-15 15:27:50,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633409713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:50,791 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:50,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:50,791 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310183018] [2022-03-15 15:27:50,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:50,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:50,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:50,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:50,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:50,792 INFO L87 Difference]: Start difference. First operand 5199 states and 24657 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:50,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:50,959 INFO L93 Difference]: Finished difference Result 12108 states and 54187 transitions. [2022-03-15 15:27:50,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:50,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:50,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:50,994 INFO L225 Difference]: With dead ends: 12108 [2022-03-15 15:27:50,995 INFO L226 Difference]: Without dead ends: 11566 [2022-03-15 15:27:50,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:50,995 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 159 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:50,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 223 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:51,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2022-03-15 15:27:51,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 5307. [2022-03-15 15:27:51,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 4.72238974745571) internal successors, (25057), 5306 states have internal predecessors, (25057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:51,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 25057 transitions. [2022-03-15 15:27:51,152 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 25057 transitions. Word has length 29 [2022-03-15 15:27:51,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:51,152 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 25057 transitions. [2022-03-15 15:27:51,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:51,152 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 25057 transitions. [2022-03-15 15:27:51,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:51,163 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:51,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:51,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-15 15:27:51,163 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:51,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:51,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1274677883, now seen corresponding path program 190 times [2022-03-15 15:27:51,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:51,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100601701] [2022-03-15 15:27:51,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:51,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:51,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:51,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:51,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100601701] [2022-03-15 15:27:51,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100601701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:51,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:51,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:51,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604685944] [2022-03-15 15:27:51,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:51,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:51,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:51,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:51,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:51,307 INFO L87 Difference]: Start difference. First operand 5307 states and 25057 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:51,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:51,535 INFO L93 Difference]: Finished difference Result 12037 states and 53804 transitions. [2022-03-15 15:27:51,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:51,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:51,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:51,569 INFO L225 Difference]: With dead ends: 12037 [2022-03-15 15:27:51,570 INFO L226 Difference]: Without dead ends: 11458 [2022-03-15 15:27:51,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:51,570 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 142 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:51,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 272 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:51,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11458 states. [2022-03-15 15:27:51,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11458 to 5199. [2022-03-15 15:27:51,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.7331666025394385) internal successors, (24603), 5198 states have internal predecessors, (24603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:51,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24603 transitions. [2022-03-15 15:27:51,718 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24603 transitions. Word has length 29 [2022-03-15 15:27:51,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:51,718 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24603 transitions. [2022-03-15 15:27:51,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:51,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24603 transitions. [2022-03-15 15:27:51,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:51,728 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:51,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:51,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-15 15:27:51,728 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:51,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:51,729 INFO L85 PathProgramCache]: Analyzing trace with hash 271605219, now seen corresponding path program 191 times [2022-03-15 15:27:51,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:51,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650567989] [2022-03-15 15:27:51,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:51,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:51,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:51,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:51,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:51,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650567989] [2022-03-15 15:27:51,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650567989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:51,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:51,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:51,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40247121] [2022-03-15 15:27:51,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:51,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:51,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:51,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:51,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:51,890 INFO L87 Difference]: Start difference. First operand 5199 states and 24603 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:52,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:52,127 INFO L93 Difference]: Finished difference Result 11942 states and 53463 transitions. [2022-03-15 15:27:52,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:52,128 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:52,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:52,164 INFO L225 Difference]: With dead ends: 11942 [2022-03-15 15:27:52,164 INFO L226 Difference]: Without dead ends: 11467 [2022-03-15 15:27:52,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:52,165 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 153 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:52,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 219 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11467 states. [2022-03-15 15:27:52,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11467 to 5275. [2022-03-15 15:27:52,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.719567690557452) internal successors, (24891), 5274 states have internal predecessors, (24891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24891 transitions. [2022-03-15 15:27:52,330 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24891 transitions. Word has length 29 [2022-03-15 15:27:52,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:52,331 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 24891 transitions. [2022-03-15 15:27:52,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:52,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24891 transitions. [2022-03-15 15:27:52,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:52,342 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:52,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:52,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-15 15:27:52,343 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:52,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:52,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1352667845, now seen corresponding path program 192 times [2022-03-15 15:27:52,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:52,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447223037] [2022-03-15 15:27:52,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:52,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:52,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:52,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:52,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447223037] [2022-03-15 15:27:52,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447223037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:52,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:52,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:52,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18742237] [2022-03-15 15:27:52,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:52,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:52,529 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:52,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:52,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:52,530 INFO L87 Difference]: Start difference. First operand 5275 states and 24891 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:52,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:52,773 INFO L93 Difference]: Finished difference Result 11938 states and 53375 transitions. [2022-03-15 15:27:52,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:52,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:52,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:52,808 INFO L225 Difference]: With dead ends: 11938 [2022-03-15 15:27:52,809 INFO L226 Difference]: Without dead ends: 11317 [2022-03-15 15:27:52,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:52,809 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 156 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:52,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 223 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:52,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11317 states. [2022-03-15 15:27:52,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11317 to 5125. [2022-03-15 15:27:52,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.754098360655738) internal successors, (24360), 5124 states have internal predecessors, (24360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:52,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24360 transitions. [2022-03-15 15:27:52,957 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24360 transitions. Word has length 29 [2022-03-15 15:27:52,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:52,957 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24360 transitions. [2022-03-15 15:27:52,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:52,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24360 transitions. [2022-03-15 15:27:52,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:52,966 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:52,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:52,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-15 15:27:52,967 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:52,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:52,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1834965855, now seen corresponding path program 193 times [2022-03-15 15:27:52,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:52,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950876442] [2022-03-15 15:27:52,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:52,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:53,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:53,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:53,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950876442] [2022-03-15 15:27:53,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950876442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:53,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:53,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:53,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246909369] [2022-03-15 15:27:53,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:53,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:53,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:53,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:53,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:53,109 INFO L87 Difference]: Start difference. First operand 5125 states and 24360 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:53,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:53,314 INFO L93 Difference]: Finished difference Result 11312 states and 50753 transitions. [2022-03-15 15:27:53,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:53,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:53,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:53,348 INFO L225 Difference]: With dead ends: 11312 [2022-03-15 15:27:53,349 INFO L226 Difference]: Without dead ends: 10897 [2022-03-15 15:27:53,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:53,349 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 161 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:53,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 241 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:53,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10897 states. [2022-03-15 15:27:53,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10897 to 5209. [2022-03-15 15:27:53,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.7480798771121355) internal successors, (24728), 5208 states have internal predecessors, (24728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:53,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24728 transitions. [2022-03-15 15:27:53,497 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24728 transitions. Word has length 29 [2022-03-15 15:27:53,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:53,497 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24728 transitions. [2022-03-15 15:27:53,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:53,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24728 transitions. [2022-03-15 15:27:53,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:53,507 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:53,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:53,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-15 15:27:53,508 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:53,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:53,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1605678845, now seen corresponding path program 194 times [2022-03-15 15:27:53,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:53,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936046228] [2022-03-15 15:27:53,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:53,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:53,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:53,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:53,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936046228] [2022-03-15 15:27:53,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936046228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:53,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:53,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:53,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762634955] [2022-03-15 15:27:53,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:53,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:53,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:53,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:53,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:53,675 INFO L87 Difference]: Start difference. First operand 5209 states and 24728 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:53,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:53,902 INFO L93 Difference]: Finished difference Result 11374 states and 50974 transitions. [2022-03-15 15:27:53,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:53,902 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:53,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:53,935 INFO L225 Difference]: With dead ends: 11374 [2022-03-15 15:27:53,935 INFO L226 Difference]: Without dead ends: 10849 [2022-03-15 15:27:53,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:53,935 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 171 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:53,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 214 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:53,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10849 states. [2022-03-15 15:27:54,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10849 to 5161. [2022-03-15 15:27:54,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.753488372093023) internal successors, (24528), 5160 states have internal predecessors, (24528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:54,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24528 transitions. [2022-03-15 15:27:54,072 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24528 transitions. Word has length 29 [2022-03-15 15:27:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:54,072 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24528 transitions. [2022-03-15 15:27:54,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24528 transitions. [2022-03-15 15:27:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:54,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:54,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:54,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-15 15:27:54,082 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:54,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:54,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1286041731, now seen corresponding path program 195 times [2022-03-15 15:27:54,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:54,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710390989] [2022-03-15 15:27:54,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:54,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:54,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:54,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:54,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710390989] [2022-03-15 15:27:54,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710390989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:54,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:54,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:54,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811294004] [2022-03-15 15:27:54,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:54,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:54,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:54,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:54,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:54,253 INFO L87 Difference]: Start difference. First operand 5161 states and 24528 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:54,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:54,436 INFO L93 Difference]: Finished difference Result 11310 states and 50724 transitions. [2022-03-15 15:27:54,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:54,436 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:54,470 INFO L225 Difference]: With dead ends: 11310 [2022-03-15 15:27:54,470 INFO L226 Difference]: Without dead ends: 10895 [2022-03-15 15:27:54,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:54,470 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 171 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:54,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 200 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:54,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10895 states. [2022-03-15 15:27:54,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10895 to 5209. [2022-03-15 15:27:54,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.743471582181259) internal successors, (24704), 5208 states have internal predecessors, (24704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:54,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24704 transitions. [2022-03-15 15:27:54,615 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24704 transitions. Word has length 29 [2022-03-15 15:27:54,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:54,615 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24704 transitions. [2022-03-15 15:27:54,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:54,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24704 transitions. [2022-03-15 15:27:54,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:54,625 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:54,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:54,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-15 15:27:54,626 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:54,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:54,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1828231171, now seen corresponding path program 196 times [2022-03-15 15:27:54,626 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:54,626 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37975087] [2022-03-15 15:27:54,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:54,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:54,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:54,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:54,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37975087] [2022-03-15 15:27:54,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37975087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:54,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:54,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:54,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529203024] [2022-03-15 15:27:54,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:54,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:54,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:54,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:54,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:54,803 INFO L87 Difference]: Start difference. First operand 5209 states and 24704 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:55,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:55,021 INFO L93 Difference]: Finished difference Result 11370 states and 50940 transitions. [2022-03-15 15:27:55,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:55,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:55,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:55,056 INFO L225 Difference]: With dead ends: 11370 [2022-03-15 15:27:55,056 INFO L226 Difference]: Without dead ends: 10847 [2022-03-15 15:27:55,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:55,056 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 154 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:55,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 217 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:55,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10847 states. [2022-03-15 15:27:55,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10847 to 5161. [2022-03-15 15:27:55,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.748837209302326) internal successors, (24504), 5160 states have internal predecessors, (24504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:55,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24504 transitions. [2022-03-15 15:27:55,253 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24504 transitions. Word has length 29 [2022-03-15 15:27:55,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:55,253 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24504 transitions. [2022-03-15 15:27:55,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:55,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24504 transitions. [2022-03-15 15:27:55,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:55,264 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:55,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:55,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-15 15:27:55,264 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:55,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:55,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1785318373, now seen corresponding path program 197 times [2022-03-15 15:27:55,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:55,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810548076] [2022-03-15 15:27:55,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:55,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:55,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:55,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810548076] [2022-03-15 15:27:55,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810548076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:55,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:55,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:55,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560590188] [2022-03-15 15:27:55,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:55,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:55,406 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:55,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:55,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:55,406 INFO L87 Difference]: Start difference. First operand 5161 states and 24504 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:55,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:55,613 INFO L93 Difference]: Finished difference Result 11464 states and 51385 transitions. [2022-03-15 15:27:55,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:55,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:55,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:55,649 INFO L225 Difference]: With dead ends: 11464 [2022-03-15 15:27:55,650 INFO L226 Difference]: Without dead ends: 10987 [2022-03-15 15:27:55,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:55,650 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 175 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:55,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 198 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:55,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10987 states. [2022-03-15 15:27:55,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10987 to 5239. [2022-03-15 15:27:55,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.734058801069111) internal successors, (24797), 5238 states have internal predecessors, (24797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:55,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24797 transitions. [2022-03-15 15:27:55,784 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24797 transitions. Word has length 29 [2022-03-15 15:27:55,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:55,784 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 24797 transitions. [2022-03-15 15:27:55,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:55,784 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24797 transitions. [2022-03-15 15:27:55,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:55,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:55,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:55,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-15 15:27:55,793 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:55,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:55,793 INFO L85 PathProgramCache]: Analyzing trace with hash 393173827, now seen corresponding path program 198 times [2022-03-15 15:27:55,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:55,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581234936] [2022-03-15 15:27:55,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:55,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:55,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:55,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:55,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581234936] [2022-03-15 15:27:55,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581234936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:55,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:55,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:55,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842165369] [2022-03-15 15:27:55,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:55,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:55,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:55,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:55,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:55,912 INFO L87 Difference]: Start difference. First operand 5239 states and 24797 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:56,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:56,087 INFO L93 Difference]: Finished difference Result 11462 states and 51302 transitions. [2022-03-15 15:27:56,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:56,088 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:56,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:56,122 INFO L225 Difference]: With dead ends: 11462 [2022-03-15 15:27:56,122 INFO L226 Difference]: Without dead ends: 10885 [2022-03-15 15:27:56,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:56,122 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:56,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 218 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:56,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2022-03-15 15:27:56,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 5137. [2022-03-15 15:27:56,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.753894080996885) internal successors, (24416), 5136 states have internal predecessors, (24416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:56,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24416 transitions. [2022-03-15 15:27:56,266 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24416 transitions. Word has length 29 [2022-03-15 15:27:56,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:56,267 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24416 transitions. [2022-03-15 15:27:56,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:56,267 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24416 transitions. [2022-03-15 15:27:56,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:56,276 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:56,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:56,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-15 15:27:56,276 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:56,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:56,276 INFO L85 PathProgramCache]: Analyzing trace with hash -125364093, now seen corresponding path program 199 times [2022-03-15 15:27:56,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:56,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261134498] [2022-03-15 15:27:56,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:56,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:56,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:56,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:56,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261134498] [2022-03-15 15:27:56,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261134498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:56,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:56,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:56,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777134741] [2022-03-15 15:27:56,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:56,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:56,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:56,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:56,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:56,419 INFO L87 Difference]: Start difference. First operand 5137 states and 24416 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:56,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:56,577 INFO L93 Difference]: Finished difference Result 11306 states and 50722 transitions. [2022-03-15 15:27:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:56,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:56,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:56,611 INFO L225 Difference]: With dead ends: 11306 [2022-03-15 15:27:56,611 INFO L226 Difference]: Without dead ends: 10891 [2022-03-15 15:27:56,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:56,611 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 189 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:56,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 195 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:56,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2022-03-15 15:27:56,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 5209. [2022-03-15 15:27:56,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.745775729646698) internal successors, (24716), 5208 states have internal predecessors, (24716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:56,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24716 transitions. [2022-03-15 15:27:56,754 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24716 transitions. Word has length 29 [2022-03-15 15:27:56,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:56,754 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24716 transitions. [2022-03-15 15:27:56,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24716 transitions. [2022-03-15 15:27:56,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:56,764 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:56,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:56,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-15 15:27:56,764 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:56,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:56,765 INFO L85 PathProgramCache]: Analyzing trace with hash 103922917, now seen corresponding path program 200 times [2022-03-15 15:27:56,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:56,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813197157] [2022-03-15 15:27:56,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:56,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:56,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:56,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:56,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813197157] [2022-03-15 15:27:56,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813197157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:56,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:56,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:56,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622880194] [2022-03-15 15:27:56,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:56,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:56,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:56,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:56,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:56,868 INFO L87 Difference]: Start difference. First operand 5209 states and 24716 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:57,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:57,047 INFO L93 Difference]: Finished difference Result 11368 states and 50943 transitions. [2022-03-15 15:27:57,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:57,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:57,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:57,080 INFO L225 Difference]: With dead ends: 11368 [2022-03-15 15:27:57,080 INFO L226 Difference]: Without dead ends: 10843 [2022-03-15 15:27:57,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:57,081 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 146 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:57,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 245 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:57,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10843 states. [2022-03-15 15:27:57,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10843 to 5161. [2022-03-15 15:27:57,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.751162790697674) internal successors, (24516), 5160 states have internal predecessors, (24516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:57,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24516 transitions. [2022-03-15 15:27:57,217 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24516 transitions. Word has length 29 [2022-03-15 15:27:57,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:57,217 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24516 transitions. [2022-03-15 15:27:57,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:57,218 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24516 transitions. [2022-03-15 15:27:57,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:57,227 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:57,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:57,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-15 15:27:57,228 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:57,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:57,228 INFO L85 PathProgramCache]: Analyzing trace with hash 274548739, now seen corresponding path program 201 times [2022-03-15 15:27:57,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:57,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268164059] [2022-03-15 15:27:57,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:57,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:57,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:57,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:57,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268164059] [2022-03-15 15:27:57,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268164059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:57,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:57,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:57,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411967194] [2022-03-15 15:27:57,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:57,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:57,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:57,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:57,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:57,335 INFO L87 Difference]: Start difference. First operand 5161 states and 24516 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:57,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:57,508 INFO L93 Difference]: Finished difference Result 11300 states and 50681 transitions. [2022-03-15 15:27:57,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:57,508 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:57,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:57,543 INFO L225 Difference]: With dead ends: 11300 [2022-03-15 15:27:57,543 INFO L226 Difference]: Without dead ends: 10885 [2022-03-15 15:27:57,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:57,543 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 169 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:57,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 228 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:57,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2022-03-15 15:27:57,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 5209. [2022-03-15 15:27:57,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.7411674347158215) internal successors, (24692), 5208 states have internal predecessors, (24692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:57,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24692 transitions. [2022-03-15 15:27:57,699 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24692 transitions. Word has length 29 [2022-03-15 15:27:57,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:57,714 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24692 transitions. [2022-03-15 15:27:57,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:57,714 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24692 transitions. [2022-03-15 15:27:57,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:57,727 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:57,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:57,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-15 15:27:57,727 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:57,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:57,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1068216445, now seen corresponding path program 202 times [2022-03-15 15:27:57,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:57,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004330924] [2022-03-15 15:27:57,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:57,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:57,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:57,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:57,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004330924] [2022-03-15 15:27:57,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004330924] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:57,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:57,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:57,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390614893] [2022-03-15 15:27:57,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:57,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:57,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:57,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:57,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:57,847 INFO L87 Difference]: Start difference. First operand 5209 states and 24692 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:58,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:58,043 INFO L93 Difference]: Finished difference Result 11356 states and 50885 transitions. [2022-03-15 15:27:58,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:58,043 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:58,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:58,076 INFO L225 Difference]: With dead ends: 11356 [2022-03-15 15:27:58,076 INFO L226 Difference]: Without dead ends: 10837 [2022-03-15 15:27:58,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:58,076 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 151 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:58,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 219 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:58,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10837 states. [2022-03-15 15:27:58,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10837 to 5161. [2022-03-15 15:27:58,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.746511627906977) internal successors, (24492), 5160 states have internal predecessors, (24492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:58,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24492 transitions. [2022-03-15 15:27:58,230 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24492 transitions. Word has length 29 [2022-03-15 15:27:58,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:58,231 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24492 transitions. [2022-03-15 15:27:58,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:58,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24492 transitions. [2022-03-15 15:27:58,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:58,241 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:58,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:58,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-15 15:27:58,241 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:58,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:58,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1783327899, now seen corresponding path program 203 times [2022-03-15 15:27:58,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:58,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713597152] [2022-03-15 15:27:58,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:58,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:58,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:58,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713597152] [2022-03-15 15:27:58,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713597152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:58,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:58,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:58,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907020846] [2022-03-15 15:27:58,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:58,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:58,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:58,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:58,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:58,414 INFO L87 Difference]: Start difference. First operand 5161 states and 24492 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:58,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:58,613 INFO L93 Difference]: Finished difference Result 11452 states and 51335 transitions. [2022-03-15 15:27:58,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:58,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:58,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:58,657 INFO L225 Difference]: With dead ends: 11452 [2022-03-15 15:27:58,657 INFO L226 Difference]: Without dead ends: 10975 [2022-03-15 15:27:58,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:58,658 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 176 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:58,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 203 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:58,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10975 states. [2022-03-15 15:27:58,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10975 to 5237. [2022-03-15 15:27:58,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.732620320855615) internal successors, (24780), 5236 states have internal predecessors, (24780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:58,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24780 transitions. [2022-03-15 15:27:58,829 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24780 transitions. Word has length 29 [2022-03-15 15:27:58,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:58,829 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 24780 transitions. [2022-03-15 15:27:58,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:58,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24780 transitions. [2022-03-15 15:27:58,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:58,839 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:58,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:58,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-15 15:27:58,839 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:58,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:58,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1770687299, now seen corresponding path program 204 times [2022-03-15 15:27:58,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:58,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184618922] [2022-03-15 15:27:58,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:58,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:59,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:59,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:59,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184618922] [2022-03-15 15:27:59,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184618922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:59,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:59,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:59,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301148181] [2022-03-15 15:27:59,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:59,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:59,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:59,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:59,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:59,006 INFO L87 Difference]: Start difference. First operand 5237 states and 24780 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:59,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:59,213 INFO L93 Difference]: Finished difference Result 11446 states and 51242 transitions. [2022-03-15 15:27:59,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:59,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:59,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:59,247 INFO L225 Difference]: With dead ends: 11446 [2022-03-15 15:27:59,248 INFO L226 Difference]: Without dead ends: 10875 [2022-03-15 15:27:59,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:59,248 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 157 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:59,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 222 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:59,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10875 states. [2022-03-15 15:27:59,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10875 to 5137. [2022-03-15 15:27:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.751557632398754) internal successors, (24404), 5136 states have internal predecessors, (24404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:59,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24404 transitions. [2022-03-15 15:27:59,400 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24404 transitions. Word has length 29 [2022-03-15 15:27:59,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:59,400 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24404 transitions. [2022-03-15 15:27:59,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:59,400 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24404 transitions. [2022-03-15 15:27:59,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:59,410 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:59,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:59,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-15 15:27:59,411 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:59,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:59,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1916292251, now seen corresponding path program 205 times [2022-03-15 15:27:59,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:59,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058966337] [2022-03-15 15:27:59,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:59,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:27:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:27:59,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:27:59,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:27:59,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058966337] [2022-03-15 15:27:59,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058966337] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:27:59,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:27:59,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:27:59,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996254125] [2022-03-15 15:27:59,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:27:59,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:27:59,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:27:59,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:27:59,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:27:59,584 INFO L87 Difference]: Start difference. First operand 5137 states and 24404 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:59,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:27:59,819 INFO L93 Difference]: Finished difference Result 11302 states and 50700 transitions. [2022-03-15 15:27:59,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:27:59,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:27:59,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:27:59,851 INFO L225 Difference]: With dead ends: 11302 [2022-03-15 15:27:59,851 INFO L226 Difference]: Without dead ends: 10887 [2022-03-15 15:27:59,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:27:59,851 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 168 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:27:59,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 224 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:27:59,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10887 states. [2022-03-15 15:27:59,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10887 to 5209. [2022-03-15 15:27:59,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.743471582181259) internal successors, (24704), 5208 states have internal predecessors, (24704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:59,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24704 transitions. [2022-03-15 15:27:59,987 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24704 transitions. Word has length 29 [2022-03-15 15:27:59,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:27:59,987 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24704 transitions. [2022-03-15 15:27:59,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:27:59,987 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24704 transitions. [2022-03-15 15:27:59,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:27:59,997 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:27:59,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:27:59,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-15 15:27:59,997 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:27:59,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:27:59,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1374102811, now seen corresponding path program 206 times [2022-03-15 15:27:59,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:27:59,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109286936] [2022-03-15 15:27:59,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:27:59,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:00,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:00,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:00,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109286936] [2022-03-15 15:28:00,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109286936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:00,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:00,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:00,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539853018] [2022-03-15 15:28:00,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:00,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:00,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:00,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:00,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:00,146 INFO L87 Difference]: Start difference. First operand 5209 states and 24704 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:00,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:00,362 INFO L93 Difference]: Finished difference Result 11362 states and 50916 transitions. [2022-03-15 15:28:00,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:00,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:00,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:00,397 INFO L225 Difference]: With dead ends: 11362 [2022-03-15 15:28:00,397 INFO L226 Difference]: Without dead ends: 10839 [2022-03-15 15:28:00,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:00,397 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:00,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 219 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:00,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10839 states. [2022-03-15 15:28:00,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10839 to 5161. [2022-03-15 15:28:00,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.748837209302326) internal successors, (24504), 5160 states have internal predecessors, (24504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:00,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24504 transitions. [2022-03-15 15:28:00,546 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24504 transitions. Word has length 29 [2022-03-15 15:28:00,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:00,546 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24504 transitions. [2022-03-15 15:28:00,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:00,546 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24504 transitions. [2022-03-15 15:28:00,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:00,556 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:00,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:00,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-15 15:28:00,556 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:00,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:00,557 INFO L85 PathProgramCache]: Analyzing trace with hash 355613507, now seen corresponding path program 207 times [2022-03-15 15:28:00,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:00,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325920607] [2022-03-15 15:28:00,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:00,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:00,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:00,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:00,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325920607] [2022-03-15 15:28:00,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325920607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:00,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:00,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:00,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133508439] [2022-03-15 15:28:00,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:00,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:00,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:00,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:00,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:00,672 INFO L87 Difference]: Start difference. First operand 5161 states and 24504 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:00,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:00,887 INFO L93 Difference]: Finished difference Result 11298 states and 50664 transitions. [2022-03-15 15:28:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:00,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:00,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:00,920 INFO L225 Difference]: With dead ends: 11298 [2022-03-15 15:28:00,920 INFO L226 Difference]: Without dead ends: 10883 [2022-03-15 15:28:00,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:00,921 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:00,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 218 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:00,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2022-03-15 15:28:01,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 5209. [2022-03-15 15:28:01,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.738863287250384) internal successors, (24680), 5208 states have internal predecessors, (24680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:01,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24680 transitions. [2022-03-15 15:28:01,069 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24680 transitions. Word has length 29 [2022-03-15 15:28:01,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:01,069 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24680 transitions. [2022-03-15 15:28:01,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:01,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24680 transitions. [2022-03-15 15:28:01,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:01,079 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:01,079 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:01,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-15 15:28:01,079 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:01,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:01,079 INFO L85 PathProgramCache]: Analyzing trace with hash 332901093, now seen corresponding path program 208 times [2022-03-15 15:28:01,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:01,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962887177] [2022-03-15 15:28:01,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:01,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:01,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:01,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:01,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962887177] [2022-03-15 15:28:01,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962887177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:01,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:01,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:01,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292391056] [2022-03-15 15:28:01,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:01,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:01,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:01,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:01,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:01,203 INFO L87 Difference]: Start difference. First operand 5209 states and 24680 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:01,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:01,363 INFO L93 Difference]: Finished difference Result 11354 states and 50868 transitions. [2022-03-15 15:28:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:01,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:01,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:01,393 INFO L225 Difference]: With dead ends: 11354 [2022-03-15 15:28:01,393 INFO L226 Difference]: Without dead ends: 10835 [2022-03-15 15:28:01,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:01,394 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:01,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 200 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:01,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10835 states. [2022-03-15 15:28:01,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10835 to 5161. [2022-03-15 15:28:01,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.744186046511628) internal successors, (24480), 5160 states have internal predecessors, (24480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:01,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24480 transitions. [2022-03-15 15:28:01,526 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24480 transitions. Word has length 29 [2022-03-15 15:28:01,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:01,526 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24480 transitions. [2022-03-15 15:28:01,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:01,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24480 transitions. [2022-03-15 15:28:01,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:01,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:01,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:01,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-15 15:28:01,535 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:01,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:01,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1013711461, now seen corresponding path program 209 times [2022-03-15 15:28:01,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:01,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140941718] [2022-03-15 15:28:01,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:01,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:01,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:01,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140941718] [2022-03-15 15:28:01,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140941718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:01,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:01,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:01,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83380861] [2022-03-15 15:28:01,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:01,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:01,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:01,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:01,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:01,666 INFO L87 Difference]: Start difference. First operand 5161 states and 24480 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:01,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:01,829 INFO L93 Difference]: Finished difference Result 11446 states and 51308 transitions. [2022-03-15 15:28:01,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:01,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:01,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:01,861 INFO L225 Difference]: With dead ends: 11446 [2022-03-15 15:28:01,861 INFO L226 Difference]: Without dead ends: 10971 [2022-03-15 15:28:01,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:01,861 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 167 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:01,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 200 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:01,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10971 states. [2022-03-15 15:28:01,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10971 to 5237. [2022-03-15 15:28:01,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.730328495034377) internal successors, (24768), 5236 states have internal predecessors, (24768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:02,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24768 transitions. [2022-03-15 15:28:02,000 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24768 transitions. Word has length 29 [2022-03-15 15:28:02,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:02,000 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 24768 transitions. [2022-03-15 15:28:02,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:02,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24768 transitions. [2022-03-15 15:28:02,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:02,010 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:02,010 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:02,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-15 15:28:02,010 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:02,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:02,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1029625533, now seen corresponding path program 210 times [2022-03-15 15:28:02,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:02,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573119959] [2022-03-15 15:28:02,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:02,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:02,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:02,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:02,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573119959] [2022-03-15 15:28:02,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573119959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:02,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:02,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:02,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236000391] [2022-03-15 15:28:02,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:02,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:02,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:02,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:02,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:02,195 INFO L87 Difference]: Start difference. First operand 5237 states and 24768 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:02,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:02,436 INFO L93 Difference]: Finished difference Result 11442 states and 51220 transitions. [2022-03-15 15:28:02,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:02,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:02,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:02,474 INFO L225 Difference]: With dead ends: 11442 [2022-03-15 15:28:02,474 INFO L226 Difference]: Without dead ends: 10871 [2022-03-15 15:28:02,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:02,474 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 159 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:02,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 214 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:02,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10871 states. [2022-03-15 15:28:02,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10871 to 5137. [2022-03-15 15:28:02,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.749221183800623) internal successors, (24392), 5136 states have internal predecessors, (24392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:02,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24392 transitions. [2022-03-15 15:28:02,626 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24392 transitions. Word has length 29 [2022-03-15 15:28:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:02,626 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24392 transitions. [2022-03-15 15:28:02,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:02,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24392 transitions. [2022-03-15 15:28:02,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:02,637 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:02,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:02,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-15 15:28:02,637 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:02,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:02,638 INFO L85 PathProgramCache]: Analyzing trace with hash -358025785, now seen corresponding path program 211 times [2022-03-15 15:28:02,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:02,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252874033] [2022-03-15 15:28:02,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:02,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:02,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:02,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252874033] [2022-03-15 15:28:02,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252874033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:02,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:02,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:02,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782451007] [2022-03-15 15:28:02,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:02,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:02,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:02,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:02,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:02,775 INFO L87 Difference]: Start difference. First operand 5137 states and 24392 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:02,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:02,973 INFO L93 Difference]: Finished difference Result 11590 states and 52006 transitions. [2022-03-15 15:28:02,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:02,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:02,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:03,006 INFO L225 Difference]: With dead ends: 11590 [2022-03-15 15:28:03,006 INFO L226 Difference]: Without dead ends: 11113 [2022-03-15 15:28:03,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:03,007 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 154 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:03,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 206 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:03,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11113 states. [2022-03-15 15:28:03,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11113 to 5253. [2022-03-15 15:28:03,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.738385376999238) internal successors, (24886), 5252 states have internal predecessors, (24886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:03,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24886 transitions. [2022-03-15 15:28:03,149 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24886 transitions. Word has length 29 [2022-03-15 15:28:03,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:03,149 INFO L470 AbstractCegarLoop]: Abstraction has 5253 states and 24886 transitions. [2022-03-15 15:28:03,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:03,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24886 transitions. [2022-03-15 15:28:03,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:03,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:03,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:03,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-15 15:28:03,159 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:03,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1750170331, now seen corresponding path program 212 times [2022-03-15 15:28:03,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:03,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800843912] [2022-03-15 15:28:03,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:03,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:03,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:03,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:03,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800843912] [2022-03-15 15:28:03,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800843912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:03,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:03,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:03,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987582912] [2022-03-15 15:28:03,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:03,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:03,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:03,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:03,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:03,293 INFO L87 Difference]: Start difference. First operand 5253 states and 24886 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:03,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:03,489 INFO L93 Difference]: Finished difference Result 11588 states and 51923 transitions. [2022-03-15 15:28:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:03,489 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:03,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:03,521 INFO L225 Difference]: With dead ends: 11588 [2022-03-15 15:28:03,521 INFO L226 Difference]: Without dead ends: 11035 [2022-03-15 15:28:03,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:03,522 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 162 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:03,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 213 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:03,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11035 states. [2022-03-15 15:28:03,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11035 to 5175. [2022-03-15 15:28:03,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.745844607653653) internal successors, (24555), 5174 states have internal predecessors, (24555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:03,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24555 transitions. [2022-03-15 15:28:03,659 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24555 transitions. Word has length 29 [2022-03-15 15:28:03,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:03,660 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24555 transitions. [2022-03-15 15:28:03,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:03,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24555 transitions. [2022-03-15 15:28:03,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:03,670 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:03,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:03,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-15 15:28:03,670 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:03,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:03,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1204822747, now seen corresponding path program 213 times [2022-03-15 15:28:03,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:03,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627604813] [2022-03-15 15:28:03,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:03,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:03,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:03,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:03,822 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627604813] [2022-03-15 15:28:03,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627604813] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:03,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:03,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:03,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852580844] [2022-03-15 15:28:03,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:03,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:03,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:03,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:03,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:03,823 INFO L87 Difference]: Start difference. First operand 5175 states and 24555 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:04,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:04,012 INFO L93 Difference]: Finished difference Result 11584 states and 51949 transitions. [2022-03-15 15:28:04,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:04,012 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:04,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:04,049 INFO L225 Difference]: With dead ends: 11584 [2022-03-15 15:28:04,049 INFO L226 Difference]: Without dead ends: 11107 [2022-03-15 15:28:04,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:04,050 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:04,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 230 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:04,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11107 states. [2022-03-15 15:28:04,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11107 to 5251. [2022-03-15 15:28:04,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.732) internal successors, (24843), 5250 states have internal predecessors, (24843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:04,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24843 transitions. [2022-03-15 15:28:04,216 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24843 transitions. Word has length 29 [2022-03-15 15:28:04,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:04,216 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24843 transitions. [2022-03-15 15:28:04,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:04,216 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24843 transitions. [2022-03-15 15:28:04,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:04,227 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:04,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:04,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-15 15:28:04,227 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:04,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:04,227 INFO L85 PathProgramCache]: Analyzing trace with hash 638836133, now seen corresponding path program 214 times [2022-03-15 15:28:04,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:04,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954198825] [2022-03-15 15:28:04,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:04,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:04,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:04,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:04,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954198825] [2022-03-15 15:28:04,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954198825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:04,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:04,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:04,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573294491] [2022-03-15 15:28:04,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:04,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:04,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:04,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:04,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:04,336 INFO L87 Difference]: Start difference. First operand 5251 states and 24843 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:04,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:04,500 INFO L93 Difference]: Finished difference Result 11578 states and 51856 transitions. [2022-03-15 15:28:04,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:04,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:04,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:04,536 INFO L225 Difference]: With dead ends: 11578 [2022-03-15 15:28:04,536 INFO L226 Difference]: Without dead ends: 11031 [2022-03-15 15:28:04,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:04,537 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 167 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:04,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 194 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:04,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11031 states. [2022-03-15 15:28:04,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11031 to 5175. [2022-03-15 15:28:04,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.738500193274063) internal successors, (24517), 5174 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:04,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24517 transitions. [2022-03-15 15:28:04,710 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24517 transitions. Word has length 29 [2022-03-15 15:28:04,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:04,710 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24517 transitions. [2022-03-15 15:28:04,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:04,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24517 transitions. [2022-03-15 15:28:04,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:04,721 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:04,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:04,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-15 15:28:04,721 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:04,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:04,722 INFO L85 PathProgramCache]: Analyzing trace with hash -840565373, now seen corresponding path program 215 times [2022-03-15 15:28:04,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:04,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418331630] [2022-03-15 15:28:04,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:04,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:04,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:04,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:04,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418331630] [2022-03-15 15:28:04,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418331630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:04,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:04,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:04,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284520593] [2022-03-15 15:28:04,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:04,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:04,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:04,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:04,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:04,833 INFO L87 Difference]: Start difference. First operand 5175 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:04,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:04,994 INFO L93 Difference]: Finished difference Result 11580 states and 51901 transitions. [2022-03-15 15:28:04,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:04,994 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:04,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:05,030 INFO L225 Difference]: With dead ends: 11580 [2022-03-15 15:28:05,030 INFO L226 Difference]: Without dead ends: 11105 [2022-03-15 15:28:05,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:05,030 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 168 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:05,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 190 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:05,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11105 states. [2022-03-15 15:28:05,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11105 to 5251. [2022-03-15 15:28:05,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.7247619047619045) internal successors, (24805), 5250 states have internal predecessors, (24805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:05,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24805 transitions. [2022-03-15 15:28:05,219 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24805 transitions. Word has length 29 [2022-03-15 15:28:05,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:05,220 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24805 transitions. [2022-03-15 15:28:05,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:05,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24805 transitions. [2022-03-15 15:28:05,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:05,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:05,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:05,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-15 15:28:05,233 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:05,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:05,233 INFO L85 PathProgramCache]: Analyzing trace with hash 240497253, now seen corresponding path program 216 times [2022-03-15 15:28:05,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:05,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378471223] [2022-03-15 15:28:05,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:05,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:05,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:05,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378471223] [2022-03-15 15:28:05,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378471223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:05,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:05,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:05,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654971393] [2022-03-15 15:28:05,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:05,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:05,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:05,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:05,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:05,377 INFO L87 Difference]: Start difference. First operand 5251 states and 24805 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:05,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:05,552 INFO L93 Difference]: Finished difference Result 11576 states and 51813 transitions. [2022-03-15 15:28:05,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:05,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:05,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:05,587 INFO L225 Difference]: With dead ends: 11576 [2022-03-15 15:28:05,587 INFO L226 Difference]: Without dead ends: 10979 [2022-03-15 15:28:05,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:05,587 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 156 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:05,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 231 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:05,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10979 states. [2022-03-15 15:28:05,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10979 to 5125. [2022-03-15 15:28:05,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.752927400468384) internal successors, (24354), 5124 states have internal predecessors, (24354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:05,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24354 transitions. [2022-03-15 15:28:05,762 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24354 transitions. Word has length 29 [2022-03-15 15:28:05,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:05,762 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24354 transitions. [2022-03-15 15:28:05,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:05,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24354 transitions. [2022-03-15 15:28:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:05,774 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:05,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:05,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-15 15:28:05,775 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:05,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:05,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1485952777, now seen corresponding path program 217 times [2022-03-15 15:28:05,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:05,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218487999] [2022-03-15 15:28:05,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:05,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:05,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:05,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218487999] [2022-03-15 15:28:05,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218487999] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:05,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:05,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:05,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595284725] [2022-03-15 15:28:05,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:05,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:05,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:05,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:05,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:05,897 INFO L87 Difference]: Start difference. First operand 5125 states and 24354 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:06,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:06,084 INFO L93 Difference]: Finished difference Result 12530 states and 56033 transitions. [2022-03-15 15:28:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:06,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:06,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:06,124 INFO L225 Difference]: With dead ends: 12530 [2022-03-15 15:28:06,124 INFO L226 Difference]: Without dead ends: 11988 [2022-03-15 15:28:06,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:06,124 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 172 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:06,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 229 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:06,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11988 states. [2022-03-15 15:28:06,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11988 to 5406. [2022-03-15 15:28:06,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 4.719333950046254) internal successors, (25508), 5405 states have internal predecessors, (25508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:06,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 25508 transitions. [2022-03-15 15:28:06,283 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 25508 transitions. Word has length 29 [2022-03-15 15:28:06,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:06,283 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 25508 transitions. [2022-03-15 15:28:06,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:06,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 25508 transitions. [2022-03-15 15:28:06,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:06,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:06,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:06,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-15 15:28:06,294 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:06,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:06,294 INFO L85 PathProgramCache]: Analyzing trace with hash -557384217, now seen corresponding path program 218 times [2022-03-15 15:28:06,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:06,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845573690] [2022-03-15 15:28:06,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:06,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:06,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:06,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845573690] [2022-03-15 15:28:06,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845573690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:06,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:06,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:06,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886283403] [2022-03-15 15:28:06,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:06,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:06,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:06,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:06,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:06,412 INFO L87 Difference]: Start difference. First operand 5406 states and 25508 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:06,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:06,623 INFO L93 Difference]: Finished difference Result 12465 states and 55664 transitions. [2022-03-15 15:28:06,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:06,624 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:06,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:06,676 INFO L225 Difference]: With dead ends: 12465 [2022-03-15 15:28:06,676 INFO L226 Difference]: Without dead ends: 11845 [2022-03-15 15:28:06,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:06,677 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 168 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:06,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 224 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:06,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11845 states. [2022-03-15 15:28:06,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11845 to 5263. [2022-03-15 15:28:06,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.735461801596351) internal successors, (24918), 5262 states have internal predecessors, (24918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:06,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24918 transitions. [2022-03-15 15:28:06,877 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24918 transitions. Word has length 29 [2022-03-15 15:28:06,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:06,877 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 24918 transitions. [2022-03-15 15:28:06,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:06,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24918 transitions. [2022-03-15 15:28:06,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:06,888 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:06,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:06,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-15 15:28:06,888 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:06,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:06,888 INFO L85 PathProgramCache]: Analyzing trace with hash -630126873, now seen corresponding path program 219 times [2022-03-15 15:28:06,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:06,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839532783] [2022-03-15 15:28:06,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:06,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:07,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:07,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:07,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839532783] [2022-03-15 15:28:07,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839532783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:07,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:07,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:07,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586184869] [2022-03-15 15:28:07,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:07,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:07,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:07,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:07,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:07,072 INFO L87 Difference]: Start difference. First operand 5263 states and 24918 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:07,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:07,256 INFO L93 Difference]: Finished difference Result 12495 states and 55842 transitions. [2022-03-15 15:28:07,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:07,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:07,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:07,298 INFO L225 Difference]: With dead ends: 12495 [2022-03-15 15:28:07,298 INFO L226 Difference]: Without dead ends: 11953 [2022-03-15 15:28:07,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:07,298 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 169 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:07,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 205 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:07,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11953 states. [2022-03-15 15:28:07,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11953 to 5373. [2022-03-15 15:28:07,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5373 states, 5372 states have (on average 4.713886820551005) internal successors, (25323), 5372 states have internal predecessors, (25323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:07,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 25323 transitions. [2022-03-15 15:28:07,490 INFO L78 Accepts]: Start accepts. Automaton has 5373 states and 25323 transitions. Word has length 29 [2022-03-15 15:28:07,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:07,490 INFO L470 AbstractCegarLoop]: Abstraction has 5373 states and 25323 transitions. [2022-03-15 15:28:07,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:07,490 INFO L276 IsEmpty]: Start isEmpty. Operand 5373 states and 25323 transitions. [2022-03-15 15:28:07,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:07,502 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:07,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:07,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-15 15:28:07,502 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:07,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:07,502 INFO L85 PathProgramCache]: Analyzing trace with hash -74338585, now seen corresponding path program 220 times [2022-03-15 15:28:07,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:07,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383674112] [2022-03-15 15:28:07,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:07,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:07,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:07,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:07,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383674112] [2022-03-15 15:28:07,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383674112] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:07,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:07,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:07,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547926665] [2022-03-15 15:28:07,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:07,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:07,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:07,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:07,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:07,632 INFO L87 Difference]: Start difference. First operand 5373 states and 25323 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:07,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:07,820 INFO L93 Difference]: Finished difference Result 12428 states and 55469 transitions. [2022-03-15 15:28:07,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:07,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:07,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:07,856 INFO L225 Difference]: With dead ends: 12428 [2022-03-15 15:28:07,856 INFO L226 Difference]: Without dead ends: 11843 [2022-03-15 15:28:07,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:07,857 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 171 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:07,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 201 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:07,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11843 states. [2022-03-15 15:28:07,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11843 to 5263. [2022-03-15 15:28:08,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.72500950209046) internal successors, (24863), 5262 states have internal predecessors, (24863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:08,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24863 transitions. [2022-03-15 15:28:08,023 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24863 transitions. Word has length 29 [2022-03-15 15:28:08,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:08,023 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 24863 transitions. [2022-03-15 15:28:08,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:08,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24863 transitions. [2022-03-15 15:28:08,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:08,034 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:08,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:08,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-15 15:28:08,034 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:08,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:08,034 INFO L85 PathProgramCache]: Analyzing trace with hash 352220741, now seen corresponding path program 221 times [2022-03-15 15:28:08,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:08,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537927049] [2022-03-15 15:28:08,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:08,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:08,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:08,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:08,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537927049] [2022-03-15 15:28:08,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537927049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:08,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:08,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:08,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175637327] [2022-03-15 15:28:08,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:08,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:08,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:08,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:08,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:08,182 INFO L87 Difference]: Start difference. First operand 5263 states and 24863 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:08,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:08,379 INFO L93 Difference]: Finished difference Result 12333 states and 55127 transitions. [2022-03-15 15:28:08,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:08,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:08,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:08,420 INFO L225 Difference]: With dead ends: 12333 [2022-03-15 15:28:08,420 INFO L226 Difference]: Without dead ends: 11856 [2022-03-15 15:28:08,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:08,421 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 177 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:08,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 209 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:08,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11856 states. [2022-03-15 15:28:08,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11856 to 5341. [2022-03-15 15:28:08,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5340 states have (on average 4.710861423220973) internal successors, (25156), 5340 states have internal predecessors, (25156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:08,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 25156 transitions. [2022-03-15 15:28:08,628 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 25156 transitions. Word has length 29 [2022-03-15 15:28:08,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:08,628 INFO L470 AbstractCegarLoop]: Abstraction has 5341 states and 25156 transitions. [2022-03-15 15:28:08,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:08,628 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 25156 transitions. [2022-03-15 15:28:08,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:08,641 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:08,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:08,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-15 15:28:08,641 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:08,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:08,642 INFO L85 PathProgramCache]: Analyzing trace with hash 145412775, now seen corresponding path program 222 times [2022-03-15 15:28:08,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:08,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775761180] [2022-03-15 15:28:08,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:08,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:08,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:08,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775761180] [2022-03-15 15:28:08,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775761180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:08,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:08,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:08,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458761403] [2022-03-15 15:28:08,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:08,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:08,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:08,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:08,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:08,838 INFO L87 Difference]: Start difference. First operand 5341 states and 25156 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:09,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:09,169 INFO L93 Difference]: Finished difference Result 12331 states and 55044 transitions. [2022-03-15 15:28:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:09,170 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:09,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:09,205 INFO L225 Difference]: With dead ends: 12331 [2022-03-15 15:28:09,206 INFO L226 Difference]: Without dead ends: 11691 [2022-03-15 15:28:09,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:09,206 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 166 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:09,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 228 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:09,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11691 states. [2022-03-15 15:28:09,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11691 to 5176. [2022-03-15 15:28:09,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 4.743768115942029) internal successors, (24549), 5175 states have internal predecessors, (24549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:09,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 24549 transitions. [2022-03-15 15:28:09,350 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 24549 transitions. Word has length 29 [2022-03-15 15:28:09,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:09,350 INFO L470 AbstractCegarLoop]: Abstraction has 5176 states and 24549 transitions. [2022-03-15 15:28:09,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:09,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 24549 transitions. [2022-03-15 15:28:09,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:09,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:09,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:09,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-15 15:28:09,360 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:09,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:09,360 INFO L85 PathProgramCache]: Analyzing trace with hash -537108761, now seen corresponding path program 223 times [2022-03-15 15:28:09,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:09,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459706830] [2022-03-15 15:28:09,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:09,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:09,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:09,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:09,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459706830] [2022-03-15 15:28:09,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459706830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:09,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:09,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:09,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281656870] [2022-03-15 15:28:09,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:09,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:09,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:09,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:09,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:09,480 INFO L87 Difference]: Start difference. First operand 5176 states and 24549 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:09,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:09,648 INFO L93 Difference]: Finished difference Result 12505 states and 55912 transitions. [2022-03-15 15:28:09,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:09,648 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:09,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:09,684 INFO L225 Difference]: With dead ends: 12505 [2022-03-15 15:28:09,684 INFO L226 Difference]: Without dead ends: 11963 [2022-03-15 15:28:09,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:09,685 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 196 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:09,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 188 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:09,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11963 states. [2022-03-15 15:28:09,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11963 to 5389. [2022-03-15 15:28:09,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5389 states, 5388 states have (on average 4.716592427616926) internal successors, (25413), 5388 states have internal predecessors, (25413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:09,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5389 states to 5389 states and 25413 transitions. [2022-03-15 15:28:09,839 INFO L78 Accepts]: Start accepts. Automaton has 5389 states and 25413 transitions. Word has length 29 [2022-03-15 15:28:09,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:09,840 INFO L470 AbstractCegarLoop]: Abstraction has 5389 states and 25413 transitions. [2022-03-15 15:28:09,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:09,840 INFO L276 IsEmpty]: Start isEmpty. Operand 5389 states and 25413 transitions. [2022-03-15 15:28:09,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:09,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:09,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:09,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-15 15:28:09,850 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:09,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:09,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1714521541, now seen corresponding path program 224 times [2022-03-15 15:28:09,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:09,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762141486] [2022-03-15 15:28:09,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:09,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:10,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:10,013 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:10,013 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762141486] [2022-03-15 15:28:10,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762141486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:10,013 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:10,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:10,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844433039] [2022-03-15 15:28:10,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:10,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:10,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:10,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:10,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:10,014 INFO L87 Difference]: Start difference. First operand 5389 states and 25413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:10,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:10,200 INFO L93 Difference]: Finished difference Result 12440 states and 55543 transitions. [2022-03-15 15:28:10,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:10,200 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:10,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:10,232 INFO L225 Difference]: With dead ends: 12440 [2022-03-15 15:28:10,233 INFO L226 Difference]: Without dead ends: 11820 [2022-03-15 15:28:10,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:10,233 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 160 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:10,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 216 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:10,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11820 states. [2022-03-15 15:28:10,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11820 to 5246. [2022-03-15 15:28:10,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5246 states, 5245 states have (on average 4.732888465204957) internal successors, (24824), 5245 states have internal predecessors, (24824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:10,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5246 states to 5246 states and 24824 transitions. [2022-03-15 15:28:10,377 INFO L78 Accepts]: Start accepts. Automaton has 5246 states and 24824 transitions. Word has length 29 [2022-03-15 15:28:10,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:10,378 INFO L470 AbstractCegarLoop]: Abstraction has 5246 states and 24824 transitions. [2022-03-15 15:28:10,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:10,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5246 states and 24824 transitions. [2022-03-15 15:28:10,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:10,387 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:10,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:10,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-15 15:28:10,388 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:10,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:10,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1692548967, now seen corresponding path program 225 times [2022-03-15 15:28:10,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:10,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102002135] [2022-03-15 15:28:10,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:10,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:10,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:10,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:10,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102002135] [2022-03-15 15:28:10,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102002135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:10,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:10,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:10,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342815085] [2022-03-15 15:28:10,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:10,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:10,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:10,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:10,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:10,502 INFO L87 Difference]: Start difference. First operand 5246 states and 24824 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:10,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:10,673 INFO L93 Difference]: Finished difference Result 12464 states and 55703 transitions. [2022-03-15 15:28:10,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:10,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:10,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:10,709 INFO L225 Difference]: With dead ends: 12464 [2022-03-15 15:28:10,709 INFO L226 Difference]: Without dead ends: 11922 [2022-03-15 15:28:10,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:10,723 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 160 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:10,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 216 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:10,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11922 states. [2022-03-15 15:28:10,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11922 to 5354. [2022-03-15 15:28:10,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 4.712124042592938) internal successors, (25224), 5353 states have internal predecessors, (25224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 25224 transitions. [2022-03-15 15:28:10,861 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 25224 transitions. Word has length 29 [2022-03-15 15:28:10,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:10,861 INFO L470 AbstractCegarLoop]: Abstraction has 5354 states and 25224 transitions. [2022-03-15 15:28:10,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 25224 transitions. [2022-03-15 15:28:10,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:10,871 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:10,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:10,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-15 15:28:10,871 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:10,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:10,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1611659111, now seen corresponding path program 226 times [2022-03-15 15:28:10,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:10,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34255632] [2022-03-15 15:28:10,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:10,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:11,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:11,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:11,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34255632] [2022-03-15 15:28:11,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34255632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:11,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:11,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:11,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915299288] [2022-03-15 15:28:11,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:11,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:11,039 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:11,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:11,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:11,040 INFO L87 Difference]: Start difference. First operand 5354 states and 25224 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:11,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:11,263 INFO L93 Difference]: Finished difference Result 12393 states and 55320 transitions. [2022-03-15 15:28:11,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:11,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:11,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:11,296 INFO L225 Difference]: With dead ends: 12393 [2022-03-15 15:28:11,296 INFO L226 Difference]: Without dead ends: 11814 [2022-03-15 15:28:11,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:11,297 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 166 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:11,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 235 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:11,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11814 states. [2022-03-15 15:28:11,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11814 to 5246. [2022-03-15 15:28:11,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5246 states, 5245 states have (on average 4.7225929456625355) internal successors, (24770), 5245 states have internal predecessors, (24770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:11,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5246 states to 5246 states and 24770 transitions. [2022-03-15 15:28:11,432 INFO L78 Accepts]: Start accepts. Automaton has 5246 states and 24770 transitions. Word has length 29 [2022-03-15 15:28:11,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:11,432 INFO L470 AbstractCegarLoop]: Abstraction has 5246 states and 24770 transitions. [2022-03-15 15:28:11,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:11,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5246 states and 24770 transitions. [2022-03-15 15:28:11,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:11,442 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:11,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:11,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-15 15:28:11,442 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:11,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:11,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1620070715, now seen corresponding path program 227 times [2022-03-15 15:28:11,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:11,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816977030] [2022-03-15 15:28:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:11,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:11,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:11,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:11,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816977030] [2022-03-15 15:28:11,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816977030] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:11,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:11,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:11,583 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635617350] [2022-03-15 15:28:11,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:11,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:11,583 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:11,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:11,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:11,583 INFO L87 Difference]: Start difference. First operand 5246 states and 24770 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:11,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:11,794 INFO L93 Difference]: Finished difference Result 12302 states and 54989 transitions. [2022-03-15 15:28:11,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:11,794 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:11,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:11,830 INFO L225 Difference]: With dead ends: 12302 [2022-03-15 15:28:11,830 INFO L226 Difference]: Without dead ends: 11825 [2022-03-15 15:28:11,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:11,831 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 160 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:11,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 222 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:11,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11825 states. [2022-03-15 15:28:11,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11825 to 5322. [2022-03-15 15:28:11,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5321 states have (on average 4.7092651757188495) internal successors, (25058), 5321 states have internal predecessors, (25058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:11,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 25058 transitions. [2022-03-15 15:28:11,968 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 25058 transitions. Word has length 29 [2022-03-15 15:28:11,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:11,968 INFO L470 AbstractCegarLoop]: Abstraction has 5322 states and 25058 transitions. [2022-03-15 15:28:11,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:11,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 25058 transitions. [2022-03-15 15:28:11,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:11,977 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:11,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:11,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-15 15:28:11,978 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:11,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:11,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1180218023, now seen corresponding path program 228 times [2022-03-15 15:28:11,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:11,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198956645] [2022-03-15 15:28:11,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:11,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:12,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:12,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198956645] [2022-03-15 15:28:12,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198956645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:12,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:12,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:12,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998307503] [2022-03-15 15:28:12,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:12,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:12,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:12,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:12,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:12,122 INFO L87 Difference]: Start difference. First operand 5322 states and 25058 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:12,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:12,341 INFO L93 Difference]: Finished difference Result 12296 states and 54896 transitions. [2022-03-15 15:28:12,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:12,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:12,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:12,379 INFO L225 Difference]: With dead ends: 12296 [2022-03-15 15:28:12,379 INFO L226 Difference]: Without dead ends: 11679 [2022-03-15 15:28:12,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:12,380 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 184 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:12,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 194 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:12,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11679 states. [2022-03-15 15:28:12,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11679 to 5176. [2022-03-15 15:28:12,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 4.737004830917875) internal successors, (24514), 5175 states have internal predecessors, (24514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:12,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 24514 transitions. [2022-03-15 15:28:12,548 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 24514 transitions. Word has length 29 [2022-03-15 15:28:12,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:12,548 INFO L470 AbstractCegarLoop]: Abstraction has 5176 states and 24514 transitions. [2022-03-15 15:28:12,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:12,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 24514 transitions. [2022-03-15 15:28:12,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:12,558 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:12,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:12,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-15 15:28:12,559 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:12,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:12,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1621876677, now seen corresponding path program 229 times [2022-03-15 15:28:12,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:12,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840888241] [2022-03-15 15:28:12,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:12,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:12,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:12,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:12,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840888241] [2022-03-15 15:28:12,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840888241] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:12,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:12,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:12,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499343453] [2022-03-15 15:28:12,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:12,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:12,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:12,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:12,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:12,745 INFO L87 Difference]: Start difference. First operand 5176 states and 24514 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:12,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:12,959 INFO L93 Difference]: Finished difference Result 12419 states and 55573 transitions. [2022-03-15 15:28:12,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:12,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:12,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:13,001 INFO L225 Difference]: With dead ends: 12419 [2022-03-15 15:28:13,001 INFO L226 Difference]: Without dead ends: 11877 [2022-03-15 15:28:13,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:13,002 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 157 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:13,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 219 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:13,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11877 states. [2022-03-15 15:28:13,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11877 to 5340. [2022-03-15 15:28:13,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 5339 states have (on average 4.719985015920584) internal successors, (25200), 5339 states have internal predecessors, (25200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:13,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 25200 transitions. [2022-03-15 15:28:13,186 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 25200 transitions. Word has length 29 [2022-03-15 15:28:13,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:13,186 INFO L470 AbstractCegarLoop]: Abstraction has 5340 states and 25200 transitions. [2022-03-15 15:28:13,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:13,187 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 25200 transitions. [2022-03-15 15:28:13,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:13,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:13,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:13,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-15 15:28:13,198 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:13,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:13,198 INFO L85 PathProgramCache]: Analyzing trace with hash -2117302331, now seen corresponding path program 230 times [2022-03-15 15:28:13,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:13,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997489948] [2022-03-15 15:28:13,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:13,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:13,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:13,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:13,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997489948] [2022-03-15 15:28:13,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997489948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:13,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:13,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:13,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154398156] [2022-03-15 15:28:13,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:13,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:13,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:13,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:13,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:13,335 INFO L87 Difference]: Start difference. First operand 5340 states and 25200 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:13,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:13,530 INFO L93 Difference]: Finished difference Result 12352 states and 55200 transitions. [2022-03-15 15:28:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:13,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:13,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:13,575 INFO L225 Difference]: With dead ends: 12352 [2022-03-15 15:28:13,575 INFO L226 Difference]: Without dead ends: 11767 [2022-03-15 15:28:13,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:13,575 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:13,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 232 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:13,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11767 states. [2022-03-15 15:28:13,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11767 to 5230. [2022-03-15 15:28:13,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5229 states have (on average 4.731497418244406) internal successors, (24741), 5229 states have internal predecessors, (24741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:13,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 24741 transitions. [2022-03-15 15:28:13,765 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 24741 transitions. Word has length 29 [2022-03-15 15:28:13,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:13,765 INFO L470 AbstractCegarLoop]: Abstraction has 5230 states and 24741 transitions. [2022-03-15 15:28:13,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:13,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 24741 transitions. [2022-03-15 15:28:13,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:13,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:13,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:13,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-15 15:28:13,784 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:13,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:13,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1140974631, now seen corresponding path program 231 times [2022-03-15 15:28:13,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:13,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011425124] [2022-03-15 15:28:13,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:13,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:13,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:13,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011425124] [2022-03-15 15:28:13,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011425124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:13,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:13,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:13,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731307164] [2022-03-15 15:28:13,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:13,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:13,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:13,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:13,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:13,917 INFO L87 Difference]: Start difference. First operand 5230 states and 24741 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:14,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:14,112 INFO L93 Difference]: Finished difference Result 12413 states and 55500 transitions. [2022-03-15 15:28:14,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:14,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:14,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:14,146 INFO L225 Difference]: With dead ends: 12413 [2022-03-15 15:28:14,147 INFO L226 Difference]: Without dead ends: 11871 [2022-03-15 15:28:14,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:14,147 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 167 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:14,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 220 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:14,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11871 states. [2022-03-15 15:28:14,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11871 to 5338. [2022-03-15 15:28:14,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 4.710698894510024) internal successors, (25141), 5337 states have internal predecessors, (25141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:14,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 25141 transitions. [2022-03-15 15:28:14,284 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 25141 transitions. Word has length 29 [2022-03-15 15:28:14,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:14,284 INFO L470 AbstractCegarLoop]: Abstraction has 5338 states and 25141 transitions. [2022-03-15 15:28:14,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:14,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 25141 transitions. [2022-03-15 15:28:14,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:14,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:14,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:14,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-15 15:28:14,294 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:14,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:14,295 INFO L85 PathProgramCache]: Analyzing trace with hash -421353531, now seen corresponding path program 232 times [2022-03-15 15:28:14,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:14,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461111573] [2022-03-15 15:28:14,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:14,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:14,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:14,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:14,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461111573] [2022-03-15 15:28:14,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461111573] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:14,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:14,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:14,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815393163] [2022-03-15 15:28:14,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:14,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:14,452 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:14,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:14,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:14,452 INFO L87 Difference]: Start difference. First operand 5338 states and 25141 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:14,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:14,648 INFO L93 Difference]: Finished difference Result 12342 states and 55117 transitions. [2022-03-15 15:28:14,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:14,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:14,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:14,689 INFO L225 Difference]: With dead ends: 12342 [2022-03-15 15:28:14,689 INFO L226 Difference]: Without dead ends: 11763 [2022-03-15 15:28:14,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:14,689 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 180 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:14,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 196 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:14,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11763 states. [2022-03-15 15:28:14,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11763 to 5230. [2022-03-15 15:28:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5229 states have (on average 4.721170395869191) internal successors, (24687), 5229 states have internal predecessors, (24687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 24687 transitions. [2022-03-15 15:28:14,872 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 24687 transitions. Word has length 29 [2022-03-15 15:28:14,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:14,872 INFO L470 AbstractCegarLoop]: Abstraction has 5230 states and 24687 transitions. [2022-03-15 15:28:14,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:14,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 24687 transitions. [2022-03-15 15:28:14,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:14,883 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:14,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:14,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-15 15:28:14,883 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:14,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:14,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1751924677, now seen corresponding path program 233 times [2022-03-15 15:28:14,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:14,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222835850] [2022-03-15 15:28:14,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:14,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:15,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:15,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:15,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222835850] [2022-03-15 15:28:15,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222835850] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:15,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:15,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:15,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96643441] [2022-03-15 15:28:15,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:15,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:15,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:15,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:15,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:15,008 INFO L87 Difference]: Start difference. First operand 5230 states and 24687 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:15,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:15,199 INFO L93 Difference]: Finished difference Result 12247 states and 54776 transitions. [2022-03-15 15:28:15,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:15,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:15,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:15,236 INFO L225 Difference]: With dead ends: 12247 [2022-03-15 15:28:15,236 INFO L226 Difference]: Without dead ends: 11772 [2022-03-15 15:28:15,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:15,236 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 151 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:15,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 218 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:15,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11772 states. [2022-03-15 15:28:15,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11772 to 5306. [2022-03-15 15:28:15,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5306 states, 5305 states have (on average 4.707822808671065) internal successors, (24975), 5305 states have internal predecessors, (24975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:15,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 24975 transitions. [2022-03-15 15:28:15,377 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 24975 transitions. Word has length 29 [2022-03-15 15:28:15,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:15,377 INFO L470 AbstractCegarLoop]: Abstraction has 5306 states and 24975 transitions. [2022-03-15 15:28:15,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:15,377 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 24975 transitions. [2022-03-15 15:28:15,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:15,387 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:15,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:15,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-15 15:28:15,387 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:15,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:15,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1461979993, now seen corresponding path program 234 times [2022-03-15 15:28:15,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:15,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336967498] [2022-03-15 15:28:15,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:15,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:15,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:15,556 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336967498] [2022-03-15 15:28:15,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336967498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:15,556 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:15,556 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:15,556 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610683854] [2022-03-15 15:28:15,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:15,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:15,556 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:15,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:15,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:15,556 INFO L87 Difference]: Start difference. First operand 5306 states and 24975 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:15,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:15,840 INFO L93 Difference]: Finished difference Result 12243 states and 54688 transitions. [2022-03-15 15:28:15,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:15,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:15,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:15,881 INFO L225 Difference]: With dead ends: 12243 [2022-03-15 15:28:15,882 INFO L226 Difference]: Without dead ends: 11642 [2022-03-15 15:28:15,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:15,882 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:15,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 223 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:15,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11642 states. [2022-03-15 15:28:16,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11642 to 5176. [2022-03-15 15:28:16,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 4.731787439613527) internal successors, (24487), 5175 states have internal predecessors, (24487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:16,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 24487 transitions. [2022-03-15 15:28:16,046 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 24487 transitions. Word has length 29 [2022-03-15 15:28:16,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:16,046 INFO L470 AbstractCegarLoop]: Abstraction has 5176 states and 24487 transitions. [2022-03-15 15:28:16,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 24487 transitions. [2022-03-15 15:28:16,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:16,057 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:16,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:16,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-15 15:28:16,057 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:16,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:16,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1700694109, now seen corresponding path program 235 times [2022-03-15 15:28:16,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:16,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464348388] [2022-03-15 15:28:16,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:16,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:16,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:16,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:16,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464348388] [2022-03-15 15:28:16,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464348388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:16,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:16,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:16,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362778372] [2022-03-15 15:28:16,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:16,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:16,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:16,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:16,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:16,182 INFO L87 Difference]: Start difference. First operand 5176 states and 24487 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:16,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:16,363 INFO L93 Difference]: Finished difference Result 12112 states and 54260 transitions. [2022-03-15 15:28:16,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:16,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:16,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:16,401 INFO L225 Difference]: With dead ends: 12112 [2022-03-15 15:28:16,401 INFO L226 Difference]: Without dead ends: 11635 [2022-03-15 15:28:16,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:16,401 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 162 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:16,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 223 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:16,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11635 states. [2022-03-15 15:28:16,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11635 to 5292. [2022-03-15 15:28:16,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 5291 states have (on average 4.721413721413722) internal successors, (24981), 5291 states have internal predecessors, (24981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:16,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 24981 transitions. [2022-03-15 15:28:16,572 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 24981 transitions. Word has length 29 [2022-03-15 15:28:16,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:16,572 INFO L470 AbstractCegarLoop]: Abstraction has 5292 states and 24981 transitions. [2022-03-15 15:28:16,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:16,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 24981 transitions. [2022-03-15 15:28:16,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:16,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:16,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:16,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-15 15:28:16,582 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:16,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:16,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1907502075, now seen corresponding path program 236 times [2022-03-15 15:28:16,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:16,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145671366] [2022-03-15 15:28:16,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:16,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:16,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:16,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:16,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145671366] [2022-03-15 15:28:16,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145671366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:16,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:16,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:16,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489976682] [2022-03-15 15:28:16,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:16,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:16,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:16,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:16,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:16,697 INFO L87 Difference]: Start difference. First operand 5292 states and 24981 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:16,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:16,905 INFO L93 Difference]: Finished difference Result 12110 states and 54177 transitions. [2022-03-15 15:28:16,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:16,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:16,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:16,937 INFO L225 Difference]: With dead ends: 12110 [2022-03-15 15:28:16,938 INFO L226 Difference]: Without dead ends: 11557 [2022-03-15 15:28:16,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:16,938 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 176 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:16,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 197 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:16,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11557 states. [2022-03-15 15:28:17,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11557 to 5214. [2022-03-15 15:28:17,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 5213 states have (on average 4.7285632073662) internal successors, (24650), 5213 states have internal predecessors, (24650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:17,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 24650 transitions. [2022-03-15 15:28:17,074 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 24650 transitions. Word has length 29 [2022-03-15 15:28:17,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:17,074 INFO L470 AbstractCegarLoop]: Abstraction has 5214 states and 24650 transitions. [2022-03-15 15:28:17,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:17,074 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 24650 transitions. [2022-03-15 15:28:17,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:17,083 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:17,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:17,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-15 15:28:17,083 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:17,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:17,083 INFO L85 PathProgramCache]: Analyzing trace with hash 2113371141, now seen corresponding path program 237 times [2022-03-15 15:28:17,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:17,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983456445] [2022-03-15 15:28:17,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:17,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:17,245 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:17,245 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983456445] [2022-03-15 15:28:17,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983456445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:17,245 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:17,245 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:17,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101761762] [2022-03-15 15:28:17,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:17,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:17,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:17,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:17,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:17,246 INFO L87 Difference]: Start difference. First operand 5214 states and 24650 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:17,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:17,469 INFO L93 Difference]: Finished difference Result 12106 states and 54203 transitions. [2022-03-15 15:28:17,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:17,469 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:17,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:17,507 INFO L225 Difference]: With dead ends: 12106 [2022-03-15 15:28:17,507 INFO L226 Difference]: Without dead ends: 11629 [2022-03-15 15:28:17,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:17,508 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 158 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:17,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 214 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:17,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11629 states. [2022-03-15 15:28:17,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11629 to 5290. [2022-03-15 15:28:17,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5289 states have (on average 4.715069011155228) internal successors, (24938), 5289 states have internal predecessors, (24938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:17,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 24938 transitions. [2022-03-15 15:28:17,655 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 24938 transitions. Word has length 29 [2022-03-15 15:28:17,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:17,656 INFO L470 AbstractCegarLoop]: Abstraction has 5290 states and 24938 transitions. [2022-03-15 15:28:17,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:17,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 24938 transitions. [2022-03-15 15:28:17,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:17,665 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:17,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:17,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-15 15:28:17,666 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:17,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:17,666 INFO L85 PathProgramCache]: Analyzing trace with hash -862745723, now seen corresponding path program 238 times [2022-03-15 15:28:17,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:17,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393322254] [2022-03-15 15:28:17,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:17,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:17,830 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:17,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393322254] [2022-03-15 15:28:17,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393322254] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:17,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:17,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:17,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505104642] [2022-03-15 15:28:17,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:17,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:17,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:17,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:17,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:17,831 INFO L87 Difference]: Start difference. First operand 5290 states and 24938 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:18,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:18,051 INFO L93 Difference]: Finished difference Result 12100 states and 54110 transitions. [2022-03-15 15:28:18,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:18,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:18,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:18,084 INFO L225 Difference]: With dead ends: 12100 [2022-03-15 15:28:18,084 INFO L226 Difference]: Without dead ends: 11553 [2022-03-15 15:28:18,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:18,085 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 171 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:18,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 214 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:18,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11553 states. [2022-03-15 15:28:18,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11553 to 5214. [2022-03-15 15:28:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 5213 states have (on average 4.721273738730098) internal successors, (24612), 5213 states have internal predecessors, (24612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:18,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 24612 transitions. [2022-03-15 15:28:18,218 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 24612 transitions. Word has length 29 [2022-03-15 15:28:18,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:18,218 INFO L470 AbstractCegarLoop]: Abstraction has 5214 states and 24612 transitions. [2022-03-15 15:28:18,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:18,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 24612 transitions. [2022-03-15 15:28:18,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:18,228 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:18,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:18,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-15 15:28:18,228 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:18,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:18,228 INFO L85 PathProgramCache]: Analyzing trace with hash 520447847, now seen corresponding path program 239 times [2022-03-15 15:28:18,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:18,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589365348] [2022-03-15 15:28:18,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:18,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:18,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:18,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:18,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589365348] [2022-03-15 15:28:18,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589365348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:18,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:18,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:18,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659671499] [2022-03-15 15:28:18,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:18,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:18,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:18,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:18,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:18,394 INFO L87 Difference]: Start difference. First operand 5214 states and 24612 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:18,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:18,606 INFO L93 Difference]: Finished difference Result 12102 states and 54155 transitions. [2022-03-15 15:28:18,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:18,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:18,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:18,639 INFO L225 Difference]: With dead ends: 12102 [2022-03-15 15:28:18,639 INFO L226 Difference]: Without dead ends: 11627 [2022-03-15 15:28:18,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:18,639 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 179 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:18,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 204 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:18,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11627 states. [2022-03-15 15:28:18,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11627 to 5290. [2022-03-15 15:28:18,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5289 states have (on average 4.707884288145207) internal successors, (24900), 5289 states have internal predecessors, (24900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:18,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 24900 transitions. [2022-03-15 15:28:18,778 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 24900 transitions. Word has length 29 [2022-03-15 15:28:18,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:18,778 INFO L470 AbstractCegarLoop]: Abstraction has 5290 states and 24900 transitions. [2022-03-15 15:28:18,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:18,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 24900 transitions. [2022-03-15 15:28:18,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:18,787 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:18,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:18,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-15 15:28:18,788 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:18,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:18,788 INFO L85 PathProgramCache]: Analyzing trace with hash -326349115, now seen corresponding path program 240 times [2022-03-15 15:28:18,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:18,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378159691] [2022-03-15 15:28:18,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:18,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:18,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:18,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:18,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378159691] [2022-03-15 15:28:18,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378159691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:18,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:18,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:18,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741162580] [2022-03-15 15:28:18,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:18,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:18,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:18,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:18,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:18,946 INFO L87 Difference]: Start difference. First operand 5290 states and 24900 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:19,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:19,140 INFO L93 Difference]: Finished difference Result 12098 states and 54067 transitions. [2022-03-15 15:28:19,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:19,140 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:19,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:19,173 INFO L225 Difference]: With dead ends: 12098 [2022-03-15 15:28:19,173 INFO L226 Difference]: Without dead ends: 11440 [2022-03-15 15:28:19,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:19,173 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 159 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:19,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 199 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:19,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11440 states. [2022-03-15 15:28:19,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11440 to 5103. [2022-03-15 15:28:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5102 states have (on average 4.759506076048608) internal successors, (24283), 5102 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:19,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 24283 transitions. [2022-03-15 15:28:19,308 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 24283 transitions. Word has length 29 [2022-03-15 15:28:19,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:19,308 INFO L470 AbstractCegarLoop]: Abstraction has 5103 states and 24283 transitions. [2022-03-15 15:28:19,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:19,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 24283 transitions. [2022-03-15 15:28:19,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:19,317 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:19,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:19,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-15 15:28:19,318 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:19,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:19,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1920935557, now seen corresponding path program 241 times [2022-03-15 15:28:19,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:19,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325358363] [2022-03-15 15:28:19,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:19,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:19,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:19,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:19,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325358363] [2022-03-15 15:28:19,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325358363] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:19,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:19,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:19,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288760217] [2022-03-15 15:28:19,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:19,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:19,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:19,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:19,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:19,459 INFO L87 Difference]: Start difference. First operand 5103 states and 24283 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:19,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:19,652 INFO L93 Difference]: Finished difference Result 11435 states and 51030 transitions. [2022-03-15 15:28:19,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:19,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:19,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:19,683 INFO L225 Difference]: With dead ends: 11435 [2022-03-15 15:28:19,683 INFO L226 Difference]: Without dead ends: 11020 [2022-03-15 15:28:19,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:19,683 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 170 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:19,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 202 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:19,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11020 states. [2022-03-15 15:28:19,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11020 to 5275. [2022-03-15 15:28:19,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.752180508153204) internal successors, (25063), 5274 states have internal predecessors, (25063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:19,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 25063 transitions. [2022-03-15 15:28:19,825 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 25063 transitions. Word has length 29 [2022-03-15 15:28:19,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:19,825 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 25063 transitions. [2022-03-15 15:28:19,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:19,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 25063 transitions. [2022-03-15 15:28:19,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:19,835 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:19,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:19,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-15 15:28:19,835 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:19,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:19,835 INFO L85 PathProgramCache]: Analyzing trace with hash 935731527, now seen corresponding path program 242 times [2022-03-15 15:28:19,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:19,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801625784] [2022-03-15 15:28:19,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:19,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:19,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:19,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:19,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801625784] [2022-03-15 15:28:19,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801625784] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:19,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:19,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:19,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212883747] [2022-03-15 15:28:19,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:19,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:19,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:19,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:19,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:19,977 INFO L87 Difference]: Start difference. First operand 5275 states and 25063 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:20,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:20,188 INFO L93 Difference]: Finished difference Result 11562 states and 51509 transitions. [2022-03-15 15:28:20,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:20,189 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:20,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:20,222 INFO L225 Difference]: With dead ends: 11562 [2022-03-15 15:28:20,222 INFO L226 Difference]: Without dead ends: 10940 [2022-03-15 15:28:20,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:20,222 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 155 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:20,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 244 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:20,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10940 states. [2022-03-15 15:28:20,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10940 to 5195. [2022-03-15 15:28:20,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.756064690026954) internal successors, (24703), 5194 states have internal predecessors, (24703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:20,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24703 transitions. [2022-03-15 15:28:20,356 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24703 transitions. Word has length 29 [2022-03-15 15:28:20,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:20,356 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24703 transitions. [2022-03-15 15:28:20,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:20,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24703 transitions. [2022-03-15 15:28:20,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:20,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:20,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:20,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-15 15:28:20,366 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:20,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1701133701, now seen corresponding path program 243 times [2022-03-15 15:28:20,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:20,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853687604] [2022-03-15 15:28:20,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:20,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:20,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:20,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853687604] [2022-03-15 15:28:20,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853687604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:20,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:20,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:20,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124993722] [2022-03-15 15:28:20,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:20,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:20,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:20,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:20,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:20,520 INFO L87 Difference]: Start difference. First operand 5195 states and 24703 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:20,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:20,735 INFO L93 Difference]: Finished difference Result 11338 states and 50588 transitions. [2022-03-15 15:28:20,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:20,735 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:20,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:20,770 INFO L225 Difference]: With dead ends: 11338 [2022-03-15 15:28:20,770 INFO L226 Difference]: Without dead ends: 10923 [2022-03-15 15:28:20,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:20,770 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 168 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:20,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 209 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:20,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10923 states. [2022-03-15 15:28:20,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10923 to 5243. [2022-03-15 15:28:20,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.746089278901183) internal successors, (24879), 5242 states have internal predecessors, (24879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:20,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24879 transitions. [2022-03-15 15:28:20,931 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24879 transitions. Word has length 29 [2022-03-15 15:28:20,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:20,931 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 24879 transitions. [2022-03-15 15:28:20,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:20,931 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24879 transitions. [2022-03-15 15:28:20,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:20,941 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:20,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:20,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-15 15:28:20,942 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:20,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:20,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1930420711, now seen corresponding path program 244 times [2022-03-15 15:28:20,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:20,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944128425] [2022-03-15 15:28:20,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:20,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:21,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:21,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:21,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944128425] [2022-03-15 15:28:21,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944128425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:21,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:21,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:21,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904832010] [2022-03-15 15:28:21,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:21,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:21,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:21,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:21,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:21,067 INFO L87 Difference]: Start difference. First operand 5243 states and 24879 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:21,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:21,246 INFO L93 Difference]: Finished difference Result 11400 states and 50809 transitions. [2022-03-15 15:28:21,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:21,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:21,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:21,281 INFO L225 Difference]: With dead ends: 11400 [2022-03-15 15:28:21,281 INFO L226 Difference]: Without dead ends: 10875 [2022-03-15 15:28:21,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:21,281 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 168 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:21,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 211 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:21,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10875 states. [2022-03-15 15:28:21,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10875 to 5195. [2022-03-15 15:28:21,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.751443973815942) internal successors, (24679), 5194 states have internal predecessors, (24679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:21,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24679 transitions. [2022-03-15 15:28:21,432 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24679 transitions. Word has length 29 [2022-03-15 15:28:21,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:21,432 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24679 transitions. [2022-03-15 15:28:21,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:21,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24679 transitions. [2022-03-15 15:28:21,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:21,443 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:21,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:21,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-15 15:28:21,443 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:21,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:21,443 INFO L85 PathProgramCache]: Analyzing trace with hash -630045655, now seen corresponding path program 245 times [2022-03-15 15:28:21,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:21,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899279147] [2022-03-15 15:28:21,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:21,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:21,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:21,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:21,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899279147] [2022-03-15 15:28:21,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899279147] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:21,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:21,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:21,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860765052] [2022-03-15 15:28:21,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:21,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:21,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:21,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:21,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:21,560 INFO L87 Difference]: Start difference. First operand 5195 states and 24679 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:21,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:21,751 INFO L93 Difference]: Finished difference Result 11687 states and 52024 transitions. [2022-03-15 15:28:21,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:21,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:21,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:21,788 INFO L225 Difference]: With dead ends: 11687 [2022-03-15 15:28:21,788 INFO L226 Difference]: Without dead ends: 11145 [2022-03-15 15:28:21,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:21,788 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 171 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:21,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 207 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:21,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11145 states. [2022-03-15 15:28:21,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11145 to 5338. [2022-03-15 15:28:21,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 4.721379051901818) internal successors, (25198), 5337 states have internal predecessors, (25198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:21,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 25198 transitions. [2022-03-15 15:28:21,952 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 25198 transitions. Word has length 29 [2022-03-15 15:28:21,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:21,953 INFO L470 AbstractCegarLoop]: Abstraction has 5338 states and 25198 transitions. [2022-03-15 15:28:21,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:21,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 25198 transitions. [2022-03-15 15:28:21,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:21,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:21,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:21,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-15 15:28:21,964 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:21,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:21,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1621584647, now seen corresponding path program 246 times [2022-03-15 15:28:21,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:21,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958318581] [2022-03-15 15:28:21,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:21,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:22,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:22,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:22,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958318581] [2022-03-15 15:28:22,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958318581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:22,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:22,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:22,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738469671] [2022-03-15 15:28:22,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:22,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:22,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:22,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:22,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:22,095 INFO L87 Difference]: Start difference. First operand 5338 states and 25198 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:22,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:22,316 INFO L93 Difference]: Finished difference Result 11622 states and 51655 transitions. [2022-03-15 15:28:22,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:22,316 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:22,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:22,424 INFO L225 Difference]: With dead ends: 11622 [2022-03-15 15:28:22,424 INFO L226 Difference]: Without dead ends: 10946 [2022-03-15 15:28:22,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:22,425 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 151 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:22,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 249 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:22,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10946 states. [2022-03-15 15:28:22,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10946 to 5139. [2022-03-15 15:28:22,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.758855585831062) internal successors, (24451), 5138 states have internal predecessors, (24451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:22,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24451 transitions. [2022-03-15 15:28:22,561 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24451 transitions. Word has length 29 [2022-03-15 15:28:22,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:22,561 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24451 transitions. [2022-03-15 15:28:22,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:22,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24451 transitions. [2022-03-15 15:28:22,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:22,571 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:22,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:22,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-15 15:28:22,572 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:22,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:22,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1112402693, now seen corresponding path program 247 times [2022-03-15 15:28:22,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:22,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526153527] [2022-03-15 15:28:22,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:22,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:22,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:22,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526153527] [2022-03-15 15:28:22,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526153527] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:22,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:22,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:22,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788798692] [2022-03-15 15:28:22,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:22,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:22,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:22,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:22,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:22,689 INFO L87 Difference]: Start difference. First operand 5139 states and 24451 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:22,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:22,858 INFO L93 Difference]: Finished difference Result 11270 states and 50287 transitions. [2022-03-15 15:28:22,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:22,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:22,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:22,893 INFO L225 Difference]: With dead ends: 11270 [2022-03-15 15:28:22,893 INFO L226 Difference]: Without dead ends: 10855 [2022-03-15 15:28:22,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:22,893 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 170 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:22,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 214 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:22,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10855 states. [2022-03-15 15:28:23,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10855 to 5251. [2022-03-15 15:28:23,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.7487619047619045) internal successors, (24931), 5250 states have internal predecessors, (24931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:23,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24931 transitions. [2022-03-15 15:28:23,057 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24931 transitions. Word has length 29 [2022-03-15 15:28:23,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:23,058 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24931 transitions. [2022-03-15 15:28:23,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:23,058 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24931 transitions. [2022-03-15 15:28:23,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:23,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:23,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:23,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-15 15:28:23,069 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:23,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:23,069 INFO L85 PathProgramCache]: Analyzing trace with hash 127198663, now seen corresponding path program 248 times [2022-03-15 15:28:23,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:23,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654777240] [2022-03-15 15:28:23,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:23,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:23,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:23,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:23,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654777240] [2022-03-15 15:28:23,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654777240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:23,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:23,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:23,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218650073] [2022-03-15 15:28:23,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:23,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:23,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:23,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:23,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:23,181 INFO L87 Difference]: Start difference. First operand 5251 states and 24931 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:23,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:23,357 INFO L93 Difference]: Finished difference Result 11397 states and 50766 transitions. [2022-03-15 15:28:23,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:23,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:23,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:23,392 INFO L225 Difference]: With dead ends: 11397 [2022-03-15 15:28:23,393 INFO L226 Difference]: Without dead ends: 10775 [2022-03-15 15:28:23,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:23,393 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 157 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:23,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 233 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:23,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10775 states. [2022-03-15 15:28:23,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10775 to 5171. [2022-03-15 15:28:23,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.754158607350097) internal successors, (24579), 5170 states have internal predecessors, (24579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:23,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24579 transitions. [2022-03-15 15:28:23,563 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24579 transitions. Word has length 29 [2022-03-15 15:28:23,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:23,564 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24579 transitions. [2022-03-15 15:28:23,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:23,564 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24579 transitions. [2022-03-15 15:28:23,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:23,576 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:23,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:23,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-03-15 15:28:23,578 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:23,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:23,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1197190691, now seen corresponding path program 249 times [2022-03-15 15:28:23,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:23,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009647537] [2022-03-15 15:28:23,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:23,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:23,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:23,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009647537] [2022-03-15 15:28:23,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009647537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:23,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:23,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:23,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338562031] [2022-03-15 15:28:23,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:23,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:23,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:23,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:23,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:23,809 INFO L87 Difference]: Start difference. First operand 5171 states and 24579 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:24,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:24,050 INFO L93 Difference]: Finished difference Result 11095 states and 49504 transitions. [2022-03-15 15:28:24,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:24,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:24,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:24,083 INFO L225 Difference]: With dead ends: 11095 [2022-03-15 15:28:24,084 INFO L226 Difference]: Without dead ends: 10680 [2022-03-15 15:28:24,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:24,084 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 163 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:24,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 261 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:28:24,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2022-03-15 15:28:24,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 5203. [2022-03-15 15:28:24,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.746443675509419) internal successors, (24691), 5202 states have internal predecessors, (24691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:24,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24691 transitions. [2022-03-15 15:28:24,228 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24691 transitions. Word has length 29 [2022-03-15 15:28:24,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:24,228 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24691 transitions. [2022-03-15 15:28:24,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:24,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24691 transitions. [2022-03-15 15:28:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:24,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:24,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:24,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-03-15 15:28:24,238 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:24,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:24,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1864656605, now seen corresponding path program 250 times [2022-03-15 15:28:24,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:24,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838008250] [2022-03-15 15:28:24,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:24,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:24,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:24,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:24,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838008250] [2022-03-15 15:28:24,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838008250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:24,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:24,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:24,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687536846] [2022-03-15 15:28:24,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:24,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:24,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:24,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:24,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:24,410 INFO L87 Difference]: Start difference. First operand 5203 states and 24691 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:24,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:24,601 INFO L93 Difference]: Finished difference Result 11095 states and 49472 transitions. [2022-03-15 15:28:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:24,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:24,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:24,631 INFO L225 Difference]: With dead ends: 11095 [2022-03-15 15:28:24,631 INFO L226 Difference]: Without dead ends: 10648 [2022-03-15 15:28:24,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:24,631 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 161 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:24,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 206 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:24,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10648 states. [2022-03-15 15:28:24,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10648 to 5171. [2022-03-15 15:28:24,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.751063829787234) internal successors, (24563), 5170 states have internal predecessors, (24563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24563 transitions. [2022-03-15 15:28:24,762 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24563 transitions. Word has length 29 [2022-03-15 15:28:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:24,762 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24563 transitions. [2022-03-15 15:28:24,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:24,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24563 transitions. [2022-03-15 15:28:24,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:24,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:24,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:24,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-03-15 15:28:24,777 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:24,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:24,785 INFO L85 PathProgramCache]: Analyzing trace with hash 980570749, now seen corresponding path program 251 times [2022-03-15 15:28:24,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:24,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739871156] [2022-03-15 15:28:24,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:24,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:24,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:24,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:24,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739871156] [2022-03-15 15:28:24,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739871156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:24,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:24,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:24,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153256848] [2022-03-15 15:28:24,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:24,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:24,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:24,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:24,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:24,975 INFO L87 Difference]: Start difference. First operand 5171 states and 24563 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:25,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:25,147 INFO L93 Difference]: Finished difference Result 11397 states and 50766 transitions. [2022-03-15 15:28:25,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:25,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:25,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:25,187 INFO L225 Difference]: With dead ends: 11397 [2022-03-15 15:28:25,187 INFO L226 Difference]: Without dead ends: 10855 [2022-03-15 15:28:25,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:25,187 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 153 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:25,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 234 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:25,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10855 states. [2022-03-15 15:28:25,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10855 to 5251. [2022-03-15 15:28:25,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.73352380952381) internal successors, (24851), 5250 states have internal predecessors, (24851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:25,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24851 transitions. [2022-03-15 15:28:25,341 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24851 transitions. Word has length 29 [2022-03-15 15:28:25,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:25,341 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24851 transitions. [2022-03-15 15:28:25,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:25,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24851 transitions. [2022-03-15 15:28:25,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:25,352 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:25,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:25,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-03-15 15:28:25,355 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:25,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:25,356 INFO L85 PathProgramCache]: Analyzing trace with hash 773762783, now seen corresponding path program 252 times [2022-03-15 15:28:25,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:25,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297396695] [2022-03-15 15:28:25,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:25,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:25,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:25,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:25,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297396695] [2022-03-15 15:28:25,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297396695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:25,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:25,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:25,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611735260] [2022-03-15 15:28:25,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:25,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:25,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:25,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:25,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:25,516 INFO L87 Difference]: Start difference. First operand 5251 states and 24851 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:25,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:25,743 INFO L93 Difference]: Finished difference Result 11270 states and 50159 transitions. [2022-03-15 15:28:25,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:25,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:25,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:25,774 INFO L225 Difference]: With dead ends: 11270 [2022-03-15 15:28:25,774 INFO L226 Difference]: Without dead ends: 10743 [2022-03-15 15:28:25,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:25,780 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 176 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:25,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 215 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:25,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10743 states. [2022-03-15 15:28:25,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10743 to 5139. [2022-03-15 15:28:25,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.755741533670689) internal successors, (24435), 5138 states have internal predecessors, (24435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:25,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24435 transitions. [2022-03-15 15:28:25,915 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24435 transitions. Word has length 29 [2022-03-15 15:28:25,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:25,916 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24435 transitions. [2022-03-15 15:28:25,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:25,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24435 transitions. [2022-03-15 15:28:25,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:25,925 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:25,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:25,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-03-15 15:28:25,925 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:25,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:25,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1911622365, now seen corresponding path program 253 times [2022-03-15 15:28:25,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:25,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545647030] [2022-03-15 15:28:25,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:25,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:26,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:26,037 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:26,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545647030] [2022-03-15 15:28:26,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545647030] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:26,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:26,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:26,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10235052] [2022-03-15 15:28:26,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:26,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:26,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:26,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:26,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:26,038 INFO L87 Difference]: Start difference. First operand 5139 states and 24435 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:26,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:26,226 INFO L93 Difference]: Finished difference Result 11028 states and 49243 transitions. [2022-03-15 15:28:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:26,226 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:26,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:26,258 INFO L225 Difference]: With dead ends: 11028 [2022-03-15 15:28:26,258 INFO L226 Difference]: Without dead ends: 10613 [2022-03-15 15:28:26,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:26,258 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 157 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:26,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 242 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:26,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10613 states. [2022-03-15 15:28:26,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10613 to 5203. [2022-03-15 15:28:26,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.746443675509419) internal successors, (24691), 5202 states have internal predecessors, (24691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:26,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24691 transitions. [2022-03-15 15:28:26,399 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24691 transitions. Word has length 29 [2022-03-15 15:28:26,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:26,399 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24691 transitions. [2022-03-15 15:28:26,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:26,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24691 transitions. [2022-03-15 15:28:26,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:26,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:26,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:26,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-03-15 15:28:26,409 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:26,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:26,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1682335355, now seen corresponding path program 254 times [2022-03-15 15:28:26,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:26,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141774640] [2022-03-15 15:28:26,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:26,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:26,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:26,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141774640] [2022-03-15 15:28:26,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141774640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:26,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:26,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:26,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371043935] [2022-03-15 15:28:26,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:26,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:26,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:26,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:26,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:26,550 INFO L87 Difference]: Start difference. First operand 5203 states and 24691 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:26,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:26,751 INFO L93 Difference]: Finished difference Result 11090 states and 49464 transitions. [2022-03-15 15:28:26,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:26,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:26,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:26,783 INFO L225 Difference]: With dead ends: 11090 [2022-03-15 15:28:26,783 INFO L226 Difference]: Without dead ends: 10565 [2022-03-15 15:28:26,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:26,783 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 165 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:26,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 225 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:26,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10565 states. [2022-03-15 15:28:26,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10565 to 5155. [2022-03-15 15:28:26,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.753395421032208) internal successors, (24499), 5154 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:26,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24499 transitions. [2022-03-15 15:28:26,923 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24499 transitions. Word has length 29 [2022-03-15 15:28:26,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:26,923 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24499 transitions. [2022-03-15 15:28:26,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:26,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24499 transitions. [2022-03-15 15:28:26,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:26,933 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:26,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:26,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-03-15 15:28:26,933 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:26,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:26,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1902442885, now seen corresponding path program 255 times [2022-03-15 15:28:26,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:26,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009702946] [2022-03-15 15:28:26,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:26,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:27,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:27,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009702946] [2022-03-15 15:28:27,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009702946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:27,082 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:27,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:27,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018794640] [2022-03-15 15:28:27,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:27,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:27,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:27,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:27,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:27,082 INFO L87 Difference]: Start difference. First operand 5155 states and 24499 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:27,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:27,316 INFO L93 Difference]: Finished difference Result 10950 states and 48878 transitions. [2022-03-15 15:28:27,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:27,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:27,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:27,346 INFO L225 Difference]: With dead ends: 10950 [2022-03-15 15:28:27,347 INFO L226 Difference]: Without dead ends: 10535 [2022-03-15 15:28:27,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:27,347 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 151 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:27,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 254 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:27,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10535 states. [2022-03-15 15:28:27,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10535 to 5187. [2022-03-15 15:28:27,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.745661396066333) internal successors, (24611), 5186 states have internal predecessors, (24611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:27,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24611 transitions. [2022-03-15 15:28:27,476 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24611 transitions. Word has length 29 [2022-03-15 15:28:27,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:27,476 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24611 transitions. [2022-03-15 15:28:27,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:27,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24611 transitions. [2022-03-15 15:28:27,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:27,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:27,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:27,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-03-15 15:28:27,486 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:27,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:27,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1088470493, now seen corresponding path program 256 times [2022-03-15 15:28:27,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:27,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717473603] [2022-03-15 15:28:27,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:27,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:27,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:27,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717473603] [2022-03-15 15:28:27,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717473603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:27,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:27,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:27,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236363207] [2022-03-15 15:28:27,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:27,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:27,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:27,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:27,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:27,698 INFO L87 Difference]: Start difference. First operand 5187 states and 24611 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:27,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:27,929 INFO L93 Difference]: Finished difference Result 10950 states and 48846 transitions. [2022-03-15 15:28:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:27,929 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:27,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:27,959 INFO L225 Difference]: With dead ends: 10950 [2022-03-15 15:28:27,959 INFO L226 Difference]: Without dead ends: 10503 [2022-03-15 15:28:27,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:27,960 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 150 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:27,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 226 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:27,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10503 states. [2022-03-15 15:28:28,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10503 to 5155. [2022-03-15 15:28:28,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.750291036088475) internal successors, (24483), 5154 states have internal predecessors, (24483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:28,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24483 transitions. [2022-03-15 15:28:28,090 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24483 transitions. Word has length 29 [2022-03-15 15:28:28,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:28,090 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24483 transitions. [2022-03-15 15:28:28,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:28,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24483 transitions. [2022-03-15 15:28:28,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:28,099 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:28,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:28,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-03-15 15:28:28,100 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:28,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:28,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1224165981, now seen corresponding path program 257 times [2022-03-15 15:28:28,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:28,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106042310] [2022-03-15 15:28:28,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:28,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:28,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:28,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:28,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106042310] [2022-03-15 15:28:28,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106042310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:28,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:28,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:28,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447734593] [2022-03-15 15:28:28,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:28,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:28,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:28,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:28,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:28,249 INFO L87 Difference]: Start difference. First operand 5155 states and 24483 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:28,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:28,466 INFO L93 Difference]: Finished difference Result 11090 states and 49480 transitions. [2022-03-15 15:28:28,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:28,466 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:28,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:28,501 INFO L225 Difference]: With dead ends: 11090 [2022-03-15 15:28:28,501 INFO L226 Difference]: Without dead ends: 10613 [2022-03-15 15:28:28,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:28,501 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:28,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 249 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:28,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10613 states. [2022-03-15 15:28:28,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10613 to 5203. [2022-03-15 15:28:28,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.740292195309497) internal successors, (24659), 5202 states have internal predecessors, (24659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:28,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24659 transitions. [2022-03-15 15:28:28,647 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24659 transitions. Word has length 29 [2022-03-15 15:28:28,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:28,647 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24659 transitions. [2022-03-15 15:28:28,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:28,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24659 transitions. [2022-03-15 15:28:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:28,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:28,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:28,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-03-15 15:28:28,658 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:28,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:28,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1989738689, now seen corresponding path program 258 times [2022-03-15 15:28:28,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:28,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964907344] [2022-03-15 15:28:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:28,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:28,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:28,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:28,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964907344] [2022-03-15 15:28:28,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964907344] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:28,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:28,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:28,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462605428] [2022-03-15 15:28:28,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:28,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:28,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:28,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:28,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:28,824 INFO L87 Difference]: Start difference. First operand 5203 states and 24659 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:29,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:29,014 INFO L93 Difference]: Finished difference Result 11028 states and 49163 transitions. [2022-03-15 15:28:29,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:29,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:29,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:29,045 INFO L225 Difference]: With dead ends: 11028 [2022-03-15 15:28:29,045 INFO L226 Difference]: Without dead ends: 10549 [2022-03-15 15:28:29,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:29,045 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:29,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 204 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:29,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10549 states. [2022-03-15 15:28:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10549 to 5139. [2022-03-15 15:28:29,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.7541845075905025) internal successors, (24427), 5138 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:29,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24427 transitions. [2022-03-15 15:28:29,184 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24427 transitions. Word has length 29 [2022-03-15 15:28:29,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:29,184 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24427 transitions. [2022-03-15 15:28:29,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:29,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24427 transitions. [2022-03-15 15:28:29,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:29,277 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:29,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:29,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-03-15 15:28:29,277 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:29,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:29,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2068535683, now seen corresponding path program 259 times [2022-03-15 15:28:29,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:29,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022273462] [2022-03-15 15:28:29,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:29,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:29,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:29,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:29,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022273462] [2022-03-15 15:28:29,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022273462] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:29,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:29,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:29,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072157047] [2022-03-15 15:28:29,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:29,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:29,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:29,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:29,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:29,414 INFO L87 Difference]: Start difference. First operand 5139 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:29,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:29,596 INFO L93 Difference]: Finished difference Result 11687 states and 52040 transitions. [2022-03-15 15:28:29,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:29,596 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:29,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:29,629 INFO L225 Difference]: With dead ends: 11687 [2022-03-15 15:28:29,629 INFO L226 Difference]: Without dead ends: 11145 [2022-03-15 15:28:29,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:29,629 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 187 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:29,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 201 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:29,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11145 states. [2022-03-15 15:28:29,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11145 to 5338. [2022-03-15 15:28:29,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 4.724376990818812) internal successors, (25214), 5337 states have internal predecessors, (25214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:29,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 25214 transitions. [2022-03-15 15:28:29,790 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 25214 transitions. Word has length 29 [2022-03-15 15:28:29,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:29,790 INFO L470 AbstractCegarLoop]: Abstraction has 5338 states and 25214 transitions. [2022-03-15 15:28:29,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:29,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 25214 transitions. [2022-03-15 15:28:29,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:29,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:29,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:29,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-03-15 15:28:29,800 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:29,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:29,801 INFO L85 PathProgramCache]: Analyzing trace with hash -987473057, now seen corresponding path program 260 times [2022-03-15 15:28:29,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:29,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684813352] [2022-03-15 15:28:29,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:29,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:29,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:29,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:29,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684813352] [2022-03-15 15:28:29,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684813352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:29,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:29,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:29,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070198507] [2022-03-15 15:28:29,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:29,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:29,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:29,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:29,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:29,939 INFO L87 Difference]: Start difference. First operand 5338 states and 25214 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:30,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:30,133 INFO L93 Difference]: Finished difference Result 11622 states and 51671 transitions. [2022-03-15 15:28:30,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:30,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:30,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:30,168 INFO L225 Difference]: With dead ends: 11622 [2022-03-15 15:28:30,169 INFO L226 Difference]: Without dead ends: 11002 [2022-03-15 15:28:30,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:30,169 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 180 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:30,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 196 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:30,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11002 states. [2022-03-15 15:28:30,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11002 to 5195. [2022-03-15 15:28:30,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.74374278013092) internal successors, (24639), 5194 states have internal predecessors, (24639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:30,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24639 transitions. [2022-03-15 15:28:30,310 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24639 transitions. Word has length 29 [2022-03-15 15:28:30,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:30,310 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24639 transitions. [2022-03-15 15:28:30,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:30,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24639 transitions. [2022-03-15 15:28:30,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:30,320 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:30,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:30,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-03-15 15:28:30,320 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:30,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:30,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1745529567, now seen corresponding path program 261 times [2022-03-15 15:28:30,321 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:30,321 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159421125] [2022-03-15 15:28:30,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:30,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:30,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:30,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159421125] [2022-03-15 15:28:30,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159421125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:30,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:30,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:30,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386893093] [2022-03-15 15:28:30,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:30,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:30,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:30,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:30,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:30,455 INFO L87 Difference]: Start difference. First operand 5195 states and 24639 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:30,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:30,646 INFO L93 Difference]: Finished difference Result 11562 states and 51453 transitions. [2022-03-15 15:28:30,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:30,646 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:30,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:30,679 INFO L225 Difference]: With dead ends: 11562 [2022-03-15 15:28:30,679 INFO L226 Difference]: Without dead ends: 11020 [2022-03-15 15:28:30,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:30,679 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 170 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:30,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 223 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:30,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11020 states. [2022-03-15 15:28:30,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11020 to 5275. [2022-03-15 15:28:30,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.726393629124004) internal successors, (24927), 5274 states have internal predecessors, (24927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24927 transitions. [2022-03-15 15:28:30,821 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24927 transitions. Word has length 29 [2022-03-15 15:28:30,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:30,821 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 24927 transitions. [2022-03-15 15:28:30,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:30,821 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24927 transitions. [2022-03-15 15:28:30,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:30,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:30,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:30,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-03-15 15:28:30,831 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:30,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:30,832 INFO L85 PathProgramCache]: Analyzing trace with hash 57283295, now seen corresponding path program 262 times [2022-03-15 15:28:30,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:30,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804004626] [2022-03-15 15:28:30,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:30,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:30,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:30,961 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:30,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804004626] [2022-03-15 15:28:30,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804004626] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:30,961 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:30,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:30,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577509150] [2022-03-15 15:28:30,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:30,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:30,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:30,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:30,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:30,962 INFO L87 Difference]: Start difference. First operand 5275 states and 24927 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:31,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:31,138 INFO L93 Difference]: Finished difference Result 11435 states and 50846 transitions. [2022-03-15 15:28:31,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:31,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:31,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:31,171 INFO L225 Difference]: With dead ends: 11435 [2022-03-15 15:28:31,171 INFO L226 Difference]: Without dead ends: 10940 [2022-03-15 15:28:31,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:31,171 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 174 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:31,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 212 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:31,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10940 states. [2022-03-15 15:28:31,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10940 to 5195. [2022-03-15 15:28:31,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.736041586445899) internal successors, (24599), 5194 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:31,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24599 transitions. [2022-03-15 15:28:31,316 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24599 transitions. Word has length 29 [2022-03-15 15:28:31,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:31,316 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24599 transitions. [2022-03-15 15:28:31,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:31,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24599 transitions. [2022-03-15 15:28:31,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:31,326 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:31,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:31,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-03-15 15:28:31,327 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:31,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:31,327 INFO L85 PathProgramCache]: Analyzing trace with hash 2133534529, now seen corresponding path program 263 times [2022-03-15 15:28:31,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:31,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130731646] [2022-03-15 15:28:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:31,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:31,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:31,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130731646] [2022-03-15 15:28:31,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130731646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:31,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:31,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:31,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139311157] [2022-03-15 15:28:31,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:31,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:31,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:31,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:31,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:31,442 INFO L87 Difference]: Start difference. First operand 5195 states and 24599 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:31,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:31,703 INFO L93 Difference]: Finished difference Result 11400 states and 50753 transitions. [2022-03-15 15:28:31,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:31,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:31,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:31,740 INFO L225 Difference]: With dead ends: 11400 [2022-03-15 15:28:31,740 INFO L226 Difference]: Without dead ends: 10923 [2022-03-15 15:28:31,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:31,741 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 157 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:31,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 251 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:28:31,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10923 states. [2022-03-15 15:28:31,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10923 to 5243. [2022-03-15 15:28:31,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.726249523082793) internal successors, (24775), 5242 states have internal predecessors, (24775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:31,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24775 transitions. [2022-03-15 15:28:31,898 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24775 transitions. Word has length 29 [2022-03-15 15:28:31,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:31,898 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 24775 transitions. [2022-03-15 15:28:31,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:31,898 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24775 transitions. [2022-03-15 15:28:31,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:31,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:31,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:31,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-03-15 15:28:31,909 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:31,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:31,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1286737567, now seen corresponding path program 264 times [2022-03-15 15:28:31,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:31,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544728303] [2022-03-15 15:28:31,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:31,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:32,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:32,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544728303] [2022-03-15 15:28:32,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544728303] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:32,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:32,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:32,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417352829] [2022-03-15 15:28:32,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:32,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:32,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:32,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:32,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:32,079 INFO L87 Difference]: Start difference. First operand 5243 states and 24775 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:32,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:32,256 INFO L93 Difference]: Finished difference Result 11338 states and 50436 transitions. [2022-03-15 15:28:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:32,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:32,293 INFO L225 Difference]: With dead ends: 11338 [2022-03-15 15:28:32,293 INFO L226 Difference]: Without dead ends: 10795 [2022-03-15 15:28:32,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:32,294 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:32,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 208 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:32,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10795 states. [2022-03-15 15:28:32,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10795 to 5115. [2022-03-15 15:28:32,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.759288228392648) internal successors, (24339), 5114 states have internal predecessors, (24339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:32,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24339 transitions. [2022-03-15 15:28:32,465 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24339 transitions. Word has length 29 [2022-03-15 15:28:32,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:32,466 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24339 transitions. [2022-03-15 15:28:32,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:32,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24339 transitions. [2022-03-15 15:28:32,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:32,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:32,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:32,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-03-15 15:28:32,477 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:32,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:32,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1736786299, now seen corresponding path program 265 times [2022-03-15 15:28:32,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:32,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445855634] [2022-03-15 15:28:32,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:32,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:32,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:32,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445855634] [2022-03-15 15:28:32,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445855634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:32,593 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:32,593 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:32,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340129738] [2022-03-15 15:28:32,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:32,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:32,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:32,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:32,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:32,594 INFO L87 Difference]: Start difference. First operand 5115 states and 24339 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:32,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:32,773 INFO L93 Difference]: Finished difference Result 11597 states and 51819 transitions. [2022-03-15 15:28:32,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:32,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:32,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:32,810 INFO L225 Difference]: With dead ends: 11597 [2022-03-15 15:28:32,810 INFO L226 Difference]: Without dead ends: 11182 [2022-03-15 15:28:32,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:32,810 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 156 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:32,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 234 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:32,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11182 states. [2022-03-15 15:28:32,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11182 to 5279. [2022-03-15 15:28:32,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.750852595680182) internal successors, (25075), 5278 states have internal predecessors, (25075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:32,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 25075 transitions. [2022-03-15 15:28:32,985 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 25075 transitions. Word has length 29 [2022-03-15 15:28:32,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:32,985 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 25075 transitions. [2022-03-15 15:28:32,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:32,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 25075 transitions. [2022-03-15 15:28:32,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:32,995 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:32,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:32,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-03-15 15:28:32,996 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:32,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:32,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1572976967, now seen corresponding path program 266 times [2022-03-15 15:28:32,996 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:32,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261268437] [2022-03-15 15:28:32,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:32,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:33,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:33,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:33,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261268437] [2022-03-15 15:28:33,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261268437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:33,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:33,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:33,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904905953] [2022-03-15 15:28:33,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:33,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:33,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:33,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:33,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:33,138 INFO L87 Difference]: Start difference. First operand 5279 states and 25075 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:33,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:33,325 INFO L93 Difference]: Finished difference Result 11724 states and 52298 transitions. [2022-03-15 15:28:33,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:33,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:33,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:33,359 INFO L225 Difference]: With dead ends: 11724 [2022-03-15 15:28:33,359 INFO L226 Difference]: Without dead ends: 11102 [2022-03-15 15:28:33,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:33,359 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:33,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 208 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:33,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11102 states. [2022-03-15 15:28:33,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11102 to 5199. [2022-03-15 15:28:33,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.754713351288958) internal successors, (24715), 5198 states have internal predecessors, (24715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24715 transitions. [2022-03-15 15:28:33,498 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24715 transitions. Word has length 29 [2022-03-15 15:28:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:33,499 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24715 transitions. [2022-03-15 15:28:33,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:33,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24715 transitions. [2022-03-15 15:28:33,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:33,509 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:33,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:33,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-03-15 15:28:33,509 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:33,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:33,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1956588155, now seen corresponding path program 267 times [2022-03-15 15:28:33,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:33,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103773650] [2022-03-15 15:28:33,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:33,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:33,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:33,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:33,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103773650] [2022-03-15 15:28:33,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103773650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:33,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:33,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:33,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924340676] [2022-03-15 15:28:33,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:33,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:33,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:33,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:33,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:33,684 INFO L87 Difference]: Start difference. First operand 5199 states and 24715 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:33,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:33,907 INFO L93 Difference]: Finished difference Result 11500 states and 51377 transitions. [2022-03-15 15:28:33,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:33,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:33,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:33,943 INFO L225 Difference]: With dead ends: 11500 [2022-03-15 15:28:33,943 INFO L226 Difference]: Without dead ends: 11085 [2022-03-15 15:28:33,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:33,943 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 164 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:33,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 233 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:33,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2022-03-15 15:28:34,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 5247. [2022-03-15 15:28:34,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.744757910789173) internal successors, (24891), 5246 states have internal predecessors, (24891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24891 transitions. [2022-03-15 15:28:34,101 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24891 transitions. Word has length 29 [2022-03-15 15:28:34,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:34,101 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 24891 transitions. [2022-03-15 15:28:34,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:34,101 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24891 transitions. [2022-03-15 15:28:34,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:34,112 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:34,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:34,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-03-15 15:28:34,112 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:34,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:34,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1727301145, now seen corresponding path program 268 times [2022-03-15 15:28:34,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:34,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929459045] [2022-03-15 15:28:34,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:34,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:34,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:34,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:34,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929459045] [2022-03-15 15:28:34,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929459045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:34,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:34,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:34,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992630866] [2022-03-15 15:28:34,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:34,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:34,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:34,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:34,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:34,283 INFO L87 Difference]: Start difference. First operand 5247 states and 24891 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:34,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:34,501 INFO L93 Difference]: Finished difference Result 11562 states and 51598 transitions. [2022-03-15 15:28:34,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:34,501 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:34,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:34,533 INFO L225 Difference]: With dead ends: 11562 [2022-03-15 15:28:34,533 INFO L226 Difference]: Without dead ends: 11037 [2022-03-15 15:28:34,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:34,534 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 150 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:34,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 238 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:34,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11037 states. [2022-03-15 15:28:34,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11037 to 5199. [2022-03-15 15:28:34,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.750096190842632) internal successors, (24691), 5198 states have internal predecessors, (24691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:34,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24691 transitions. [2022-03-15 15:28:34,670 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24691 transitions. Word has length 29 [2022-03-15 15:28:34,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:34,670 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24691 transitions. [2022-03-15 15:28:34,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:34,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24691 transitions. [2022-03-15 15:28:34,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:34,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:34,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:34,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-03-15 15:28:34,680 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:34,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:34,680 INFO L85 PathProgramCache]: Analyzing trace with hash 7199785, now seen corresponding path program 269 times [2022-03-15 15:28:34,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:34,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130120569] [2022-03-15 15:28:34,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:34,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:34,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:34,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130120569] [2022-03-15 15:28:34,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130120569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:34,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:34,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:34,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649233878] [2022-03-15 15:28:34,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:34,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:34,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:34,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:34,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:34,879 INFO L87 Difference]: Start difference. First operand 5199 states and 24691 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:35,076 INFO L93 Difference]: Finished difference Result 11849 states and 52813 transitions. [2022-03-15 15:28:35,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:35,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:35,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:35,109 INFO L225 Difference]: With dead ends: 11849 [2022-03-15 15:28:35,109 INFO L226 Difference]: Without dead ends: 11307 [2022-03-15 15:28:35,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:35,109 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 179 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:35,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 212 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:35,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2022-03-15 15:28:35,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 5342. [2022-03-15 15:28:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5341 states have (on average 4.7200898708107095) internal successors, (25210), 5341 states have internal predecessors, (25210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:35,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 25210 transitions. [2022-03-15 15:28:35,251 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 25210 transitions. Word has length 29 [2022-03-15 15:28:35,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:35,252 INFO L470 AbstractCegarLoop]: Abstraction has 5342 states and 25210 transitions. [2022-03-15 15:28:35,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:35,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 25210 transitions. [2022-03-15 15:28:35,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:35,262 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:35,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:35,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-03-15 15:28:35,262 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:35,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:35,262 INFO L85 PathProgramCache]: Analyzing trace with hash -2036137209, now seen corresponding path program 270 times [2022-03-15 15:28:35,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:35,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911663713] [2022-03-15 15:28:35,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:35,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:35,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:35,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:35,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911663713] [2022-03-15 15:28:35,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911663713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:35,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:35,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:35,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257567946] [2022-03-15 15:28:35,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:35,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:35,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:35,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:35,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:35,438 INFO L87 Difference]: Start difference. First operand 5342 states and 25210 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:35,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:35,618 INFO L93 Difference]: Finished difference Result 11784 states and 52444 transitions. [2022-03-15 15:28:35,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:35,618 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:35,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:35,652 INFO L225 Difference]: With dead ends: 11784 [2022-03-15 15:28:35,652 INFO L226 Difference]: Without dead ends: 11108 [2022-03-15 15:28:35,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:35,652 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 174 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:35,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 198 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:35,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11108 states. [2022-03-15 15:28:35,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11108 to 5143. [2022-03-15 15:28:35,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.756709451575262) internal successors, (24459), 5142 states have internal predecessors, (24459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:35,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24459 transitions. [2022-03-15 15:28:35,795 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24459 transitions. Word has length 29 [2022-03-15 15:28:35,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:35,795 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24459 transitions. [2022-03-15 15:28:35,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:35,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24459 transitions. [2022-03-15 15:28:35,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:35,805 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:35,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:35,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-03-15 15:28:35,805 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:35,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:35,805 INFO L85 PathProgramCache]: Analyzing trace with hash -862064217, now seen corresponding path program 271 times [2022-03-15 15:28:35,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:35,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499188864] [2022-03-15 15:28:35,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:35,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:35,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:35,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:35,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499188864] [2022-03-15 15:28:35,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499188864] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:35,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:35,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:35,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581794692] [2022-03-15 15:28:35,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:35,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:35,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:35,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:35,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:35,931 INFO L87 Difference]: Start difference. First operand 5143 states and 24459 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:36,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:36,111 INFO L93 Difference]: Finished difference Result 11540 states and 51588 transitions. [2022-03-15 15:28:36,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:36,111 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:36,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:36,221 INFO L225 Difference]: With dead ends: 11540 [2022-03-15 15:28:36,221 INFO L226 Difference]: Without dead ends: 11125 [2022-03-15 15:28:36,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:36,222 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 152 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:36,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 247 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:36,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11125 states. [2022-03-15 15:28:36,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11125 to 5263. [2022-03-15 15:28:36,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.747814519194223) internal successors, (24983), 5262 states have internal predecessors, (24983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:36,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24983 transitions. [2022-03-15 15:28:36,361 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24983 transitions. Word has length 29 [2022-03-15 15:28:36,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:36,361 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 24983 transitions. [2022-03-15 15:28:36,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:36,361 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24983 transitions. [2022-03-15 15:28:36,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:36,372 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:36,372 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:36,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-03-15 15:28:36,372 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:36,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:36,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1847268247, now seen corresponding path program 272 times [2022-03-15 15:28:36,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:36,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418957751] [2022-03-15 15:28:36,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:36,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:36,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:36,523 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:36,523 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418957751] [2022-03-15 15:28:36,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418957751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:36,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:36,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:36,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642082527] [2022-03-15 15:28:36,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:36,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:36,524 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:36,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:36,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:36,524 INFO L87 Difference]: Start difference. First operand 5263 states and 24983 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:36,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:36,732 INFO L93 Difference]: Finished difference Result 11667 states and 52067 transitions. [2022-03-15 15:28:36,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:36,732 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:36,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:36,765 INFO L225 Difference]: With dead ends: 11667 [2022-03-15 15:28:36,765 INFO L226 Difference]: Without dead ends: 11045 [2022-03-15 15:28:36,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:36,765 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 190 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:36,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 197 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:36,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11045 states. [2022-03-15 15:28:36,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11045 to 5183. [2022-03-15 15:28:36,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.7516402933230415) internal successors, (24623), 5182 states have internal predecessors, (24623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:36,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24623 transitions. [2022-03-15 15:28:36,908 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24623 transitions. Word has length 29 [2022-03-15 15:28:36,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:36,908 INFO L470 AbstractCegarLoop]: Abstraction has 5183 states and 24623 transitions. [2022-03-15 15:28:36,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:36,908 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24623 transitions. [2022-03-15 15:28:36,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:36,918 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:36,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:36,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-03-15 15:28:36,918 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:36,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:36,918 INFO L85 PathProgramCache]: Analyzing trace with hash -426891835, now seen corresponding path program 273 times [2022-03-15 15:28:36,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:36,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230170091] [2022-03-15 15:28:36,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:36,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:37,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:37,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:37,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230170091] [2022-03-15 15:28:37,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230170091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:37,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:37,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:37,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740686276] [2022-03-15 15:28:37,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:37,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:37,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:37,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:37,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:37,054 INFO L87 Difference]: Start difference. First operand 5183 states and 24623 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:37,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:37,283 INFO L93 Difference]: Finished difference Result 11437 states and 51129 transitions. [2022-03-15 15:28:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:37,283 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:37,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:37,316 INFO L225 Difference]: With dead ends: 11437 [2022-03-15 15:28:37,316 INFO L226 Difference]: Without dead ends: 11022 [2022-03-15 15:28:37,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:37,316 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 146 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:37,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 275 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11022 states. [2022-03-15 15:28:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11022 to 5231. [2022-03-15 15:28:37,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 4.7416826003824095) internal successors, (24799), 5230 states have internal predecessors, (24799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:37,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 24799 transitions. [2022-03-15 15:28:37,461 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 24799 transitions. Word has length 29 [2022-03-15 15:28:37,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:37,461 INFO L470 AbstractCegarLoop]: Abstraction has 5231 states and 24799 transitions. [2022-03-15 15:28:37,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:37,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 24799 transitions. [2022-03-15 15:28:37,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:37,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:37,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:37,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-03-15 15:28:37,471 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:37,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:37,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2044620633, now seen corresponding path program 274 times [2022-03-15 15:28:37,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:37,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493150097] [2022-03-15 15:28:37,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:37,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:37,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:37,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:37,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493150097] [2022-03-15 15:28:37,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493150097] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:37,604 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:37,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:37,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523215900] [2022-03-15 15:28:37,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:37,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:37,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:37,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:37,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:37,605 INFO L87 Difference]: Start difference. First operand 5231 states and 24799 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:37,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:37,804 INFO L93 Difference]: Finished difference Result 11493 states and 51333 transitions. [2022-03-15 15:28:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:37,804 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:37,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:37,839 INFO L225 Difference]: With dead ends: 11493 [2022-03-15 15:28:37,839 INFO L226 Difference]: Without dead ends: 10974 [2022-03-15 15:28:37,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:37,839 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 155 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:37,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 220 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:37,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10974 states. [2022-03-15 15:28:37,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10974 to 5183. [2022-03-15 15:28:37,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.747008876881513) internal successors, (24599), 5182 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:37,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24599 transitions. [2022-03-15 15:28:37,993 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24599 transitions. Word has length 29 [2022-03-15 15:28:37,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:37,993 INFO L470 AbstractCegarLoop]: Abstraction has 5183 states and 24599 transitions. [2022-03-15 15:28:37,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:37,993 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24599 transitions. [2022-03-15 15:28:38,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:38,003 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:38,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:38,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-03-15 15:28:38,003 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:38,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:38,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1968251625, now seen corresponding path program 275 times [2022-03-15 15:28:38,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:38,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302315613] [2022-03-15 15:28:38,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:38,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:38,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:38,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:38,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302315613] [2022-03-15 15:28:38,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302315613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:38,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:38,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:38,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141371126] [2022-03-15 15:28:38,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:38,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:38,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:38,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:38,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:38,145 INFO L87 Difference]: Start difference. First operand 5183 states and 24599 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:38,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:38,317 INFO L93 Difference]: Finished difference Result 11751 states and 52443 transitions. [2022-03-15 15:28:38,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:38,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:38,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:38,350 INFO L225 Difference]: With dead ends: 11751 [2022-03-15 15:28:38,350 INFO L226 Difference]: Without dead ends: 11209 [2022-03-15 15:28:38,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:38,351 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 170 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:38,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 198 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:38,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2022-03-15 15:28:38,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 5291. [2022-03-15 15:28:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 4.725708884688091) internal successors, (24999), 5290 states have internal predecessors, (24999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:38,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 24999 transitions. [2022-03-15 15:28:38,500 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 24999 transitions. Word has length 29 [2022-03-15 15:28:38,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:38,500 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 24999 transitions. [2022-03-15 15:28:38,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:38,500 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 24999 transitions. [2022-03-15 15:28:38,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:38,510 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:38,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:38,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-03-15 15:28:38,510 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:38,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1878491975, now seen corresponding path program 276 times [2022-03-15 15:28:38,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:38,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102802619] [2022-03-15 15:28:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:38,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:38,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:38,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102802619] [2022-03-15 15:28:38,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102802619] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:38,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:38,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:38,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471359446] [2022-03-15 15:28:38,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:38,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:38,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:38,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:38,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:38,699 INFO L87 Difference]: Start difference. First operand 5291 states and 24999 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:38,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:38,966 INFO L93 Difference]: Finished difference Result 11680 states and 52060 transitions. [2022-03-15 15:28:38,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:38,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:38,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:39,000 INFO L225 Difference]: With dead ends: 11680 [2022-03-15 15:28:39,001 INFO L226 Difference]: Without dead ends: 11061 [2022-03-15 15:28:39,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:39,001 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 146 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:39,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 267 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:28:39,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11061 states. [2022-03-15 15:28:39,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11061 to 5143. [2022-03-15 15:28:39,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.752819914430183) internal successors, (24439), 5142 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24439 transitions. [2022-03-15 15:28:39,149 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24439 transitions. Word has length 29 [2022-03-15 15:28:39,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:39,149 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24439 transitions. [2022-03-15 15:28:39,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:39,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24439 transitions. [2022-03-15 15:28:39,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:39,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:39,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:39,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-03-15 15:28:39,159 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:39,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:39,160 INFO L85 PathProgramCache]: Analyzing trace with hash 388975813, now seen corresponding path program 277 times [2022-03-15 15:28:39,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:39,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303610752] [2022-03-15 15:28:39,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:39,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:39,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:39,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:39,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303610752] [2022-03-15 15:28:39,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303610752] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:39,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:39,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:39,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036010736] [2022-03-15 15:28:39,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:39,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:39,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:39,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:39,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:39,351 INFO L87 Difference]: Start difference. First operand 5143 states and 24439 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:39,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:39,546 INFO L93 Difference]: Finished difference Result 11298 states and 50540 transitions. [2022-03-15 15:28:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:39,547 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:39,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:39,582 INFO L225 Difference]: With dead ends: 11298 [2022-03-15 15:28:39,582 INFO L226 Difference]: Without dead ends: 10883 [2022-03-15 15:28:39,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:39,582 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 155 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:39,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 221 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:39,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2022-03-15 15:28:39,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 5215. [2022-03-15 15:28:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.744725738396625) internal successors, (24739), 5214 states have internal predecessors, (24739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:39,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24739 transitions. [2022-03-15 15:28:39,743 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24739 transitions. Word has length 29 [2022-03-15 15:28:39,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:39,743 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24739 transitions. [2022-03-15 15:28:39,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:39,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24739 transitions. [2022-03-15 15:28:39,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:39,753 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:39,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:39,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-03-15 15:28:39,753 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:39,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:39,754 INFO L85 PathProgramCache]: Analyzing trace with hash 618262823, now seen corresponding path program 278 times [2022-03-15 15:28:39,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:39,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065711103] [2022-03-15 15:28:39,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:39,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:39,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:39,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:39,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065711103] [2022-03-15 15:28:39,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065711103] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:39,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:39,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:39,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705727934] [2022-03-15 15:28:39,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:39,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:39,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:39,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:39,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:39,933 INFO L87 Difference]: Start difference. First operand 5215 states and 24739 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:40,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:40,121 INFO L93 Difference]: Finished difference Result 11360 states and 50761 transitions. [2022-03-15 15:28:40,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:40,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:40,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:40,156 INFO L225 Difference]: With dead ends: 11360 [2022-03-15 15:28:40,156 INFO L226 Difference]: Without dead ends: 10835 [2022-03-15 15:28:40,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:40,156 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 153 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:40,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 236 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10835 states. [2022-03-15 15:28:40,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10835 to 5167. [2022-03-15 15:28:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.750096786682152) internal successors, (24539), 5166 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:40,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24539 transitions. [2022-03-15 15:28:40,315 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24539 transitions. Word has length 29 [2022-03-15 15:28:40,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:40,315 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24539 transitions. [2022-03-15 15:28:40,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:40,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24539 transitions. [2022-03-15 15:28:40,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:40,325 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:40,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:40,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-03-15 15:28:40,325 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:40,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:40,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1478041561, now seen corresponding path program 279 times [2022-03-15 15:28:40,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:40,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847795696] [2022-03-15 15:28:40,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:40,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:40,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:40,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:40,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847795696] [2022-03-15 15:28:40,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847795696] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:40,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:40,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:40,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624122561] [2022-03-15 15:28:40,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:40,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:40,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:40,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:40,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:40,440 INFO L87 Difference]: Start difference. First operand 5167 states and 24539 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:40,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:40,617 INFO L93 Difference]: Finished difference Result 11292 states and 50499 transitions. [2022-03-15 15:28:40,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:40,617 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:40,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:40,653 INFO L225 Difference]: With dead ends: 11292 [2022-03-15 15:28:40,653 INFO L226 Difference]: Without dead ends: 10877 [2022-03-15 15:28:40,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:40,653 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 153 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:40,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 223 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:40,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10877 states. [2022-03-15 15:28:40,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10877 to 5215. [2022-03-15 15:28:40,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.740122746451861) internal successors, (24715), 5214 states have internal predecessors, (24715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:40,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24715 transitions. [2022-03-15 15:28:40,810 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24715 transitions. Word has length 29 [2022-03-15 15:28:40,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:40,810 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24715 transitions. [2022-03-15 15:28:40,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:40,810 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24715 transitions. [2022-03-15 15:28:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:40,820 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:40,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:40,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-03-15 15:28:40,821 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:40,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:40,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1474160551, now seen corresponding path program 280 times [2022-03-15 15:28:40,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:40,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877421661] [2022-03-15 15:28:40,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:40,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:40,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:40,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:40,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877421661] [2022-03-15 15:28:40,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877421661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:40,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:40,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:40,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633713055] [2022-03-15 15:28:40,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:40,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:40,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:40,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:40,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:40,933 INFO L87 Difference]: Start difference. First operand 5215 states and 24715 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:41,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:41,111 INFO L93 Difference]: Finished difference Result 11348 states and 50703 transitions. [2022-03-15 15:28:41,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:41,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:41,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:41,146 INFO L225 Difference]: With dead ends: 11348 [2022-03-15 15:28:41,146 INFO L226 Difference]: Without dead ends: 10829 [2022-03-15 15:28:41,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:41,147 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 158 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:41,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 219 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:41,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10829 states. [2022-03-15 15:28:41,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10829 to 5167. [2022-03-15 15:28:41,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.745451025938831) internal successors, (24515), 5166 states have internal predecessors, (24515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24515 transitions. [2022-03-15 15:28:41,301 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24515 transitions. Word has length 29 [2022-03-15 15:28:41,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:41,301 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24515 transitions. [2022-03-15 15:28:41,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24515 transitions. [2022-03-15 15:28:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:41,312 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:41,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:41,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-03-15 15:28:41,312 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:41,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:41,312 INFO L85 PathProgramCache]: Analyzing trace with hash 759049097, now seen corresponding path program 281 times [2022-03-15 15:28:41,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:41,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734734998] [2022-03-15 15:28:41,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:41,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:41,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:41,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:41,424 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734734998] [2022-03-15 15:28:41,424 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734734998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:41,424 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:41,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:41,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202592356] [2022-03-15 15:28:41,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:41,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:41,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:41,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:41,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:41,425 INFO L87 Difference]: Start difference. First operand 5167 states and 24515 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:41,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:41,592 INFO L93 Difference]: Finished difference Result 11444 states and 51153 transitions. [2022-03-15 15:28:41,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:41,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:41,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:41,626 INFO L225 Difference]: With dead ends: 11444 [2022-03-15 15:28:41,626 INFO L226 Difference]: Without dead ends: 10967 [2022-03-15 15:28:41,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:41,626 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 159 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:41,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 207 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:41,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10967 states. [2022-03-15 15:28:41,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10967 to 5243. [2022-03-15 15:28:41,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.731590995803129) internal successors, (24803), 5242 states have internal predecessors, (24803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:41,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24803 transitions. [2022-03-15 15:28:41,773 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24803 transitions. Word has length 29 [2022-03-15 15:28:41,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:41,774 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 24803 transitions. [2022-03-15 15:28:41,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:41,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24803 transitions. [2022-03-15 15:28:41,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:41,784 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:41,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:41,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-03-15 15:28:41,784 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:41,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:41,784 INFO L85 PathProgramCache]: Analyzing trace with hash 18096999, now seen corresponding path program 282 times [2022-03-15 15:28:41,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:41,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870643049] [2022-03-15 15:28:41,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:41,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:41,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:41,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:41,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870643049] [2022-03-15 15:28:41,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870643049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:41,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:41,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:41,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379971055] [2022-03-15 15:28:41,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:41,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:41,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:41,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:41,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:41,895 INFO L87 Difference]: Start difference. First operand 5243 states and 24803 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:42,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:42,064 INFO L93 Difference]: Finished difference Result 11438 states and 51060 transitions. [2022-03-15 15:28:42,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:42,064 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:42,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:42,097 INFO L225 Difference]: With dead ends: 11438 [2022-03-15 15:28:42,097 INFO L226 Difference]: Without dead ends: 10867 [2022-03-15 15:28:42,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:42,097 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:42,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 208 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:42,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10867 states. [2022-03-15 15:28:42,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10867 to 5143. [2022-03-15 15:28:42,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.750486192143135) internal successors, (24427), 5142 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:42,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24427 transitions. [2022-03-15 15:28:42,245 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24427 transitions. Word has length 29 [2022-03-15 15:28:42,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:42,245 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24427 transitions. [2022-03-15 15:28:42,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:42,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24427 transitions. [2022-03-15 15:28:42,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:42,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:42,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:42,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-03-15 15:28:42,255 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:42,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:42,256 INFO L85 PathProgramCache]: Analyzing trace with hash -423541429, now seen corresponding path program 283 times [2022-03-15 15:28:42,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:42,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888025862] [2022-03-15 15:28:42,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:42,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:42,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:42,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:42,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888025862] [2022-03-15 15:28:42,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888025862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:42,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:42,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:42,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237146498] [2022-03-15 15:28:42,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:42,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:42,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:42,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:42,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:42,377 INFO L87 Difference]: Start difference. First operand 5143 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:42,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:42,551 INFO L93 Difference]: Finished difference Result 11975 states and 53426 transitions. [2022-03-15 15:28:42,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:42,551 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:42,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:42,586 INFO L225 Difference]: With dead ends: 11975 [2022-03-15 15:28:42,586 INFO L226 Difference]: Without dead ends: 11433 [2022-03-15 15:28:42,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:42,586 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 161 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:42,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 229 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:42,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11433 states. [2022-03-15 15:28:42,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11433 to 5356. [2022-03-15 15:28:42,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 5355 states have (on average 4.722875816993464) internal successors, (25291), 5355 states have internal predecessors, (25291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:42,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 25291 transitions. [2022-03-15 15:28:42,840 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 25291 transitions. Word has length 29 [2022-03-15 15:28:42,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:42,841 INFO L470 AbstractCegarLoop]: Abstraction has 5356 states and 25291 transitions. [2022-03-15 15:28:42,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:42,841 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 25291 transitions. [2022-03-15 15:28:42,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:42,852 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:42,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:42,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-03-15 15:28:42,852 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:42,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:42,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1828088873, now seen corresponding path program 284 times [2022-03-15 15:28:42,853 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:42,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317869753] [2022-03-15 15:28:42,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:42,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:42,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:42,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317869753] [2022-03-15 15:28:42,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317869753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:42,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:42,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:42,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253168312] [2022-03-15 15:28:42,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:42,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:42,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:42,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:42,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:42,999 INFO L87 Difference]: Start difference. First operand 5356 states and 25291 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:43,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:43,168 INFO L93 Difference]: Finished difference Result 11910 states and 53057 transitions. [2022-03-15 15:28:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:43,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:43,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:43,204 INFO L225 Difference]: With dead ends: 11910 [2022-03-15 15:28:43,204 INFO L226 Difference]: Without dead ends: 11290 [2022-03-15 15:28:43,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:43,205 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 212 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:43,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 178 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:43,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11290 states. [2022-03-15 15:28:43,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11290 to 5213. [2022-03-15 15:28:43,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.739447429009977) internal successors, (24702), 5212 states have internal predecessors, (24702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:43,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24702 transitions. [2022-03-15 15:28:43,386 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24702 transitions. Word has length 29 [2022-03-15 15:28:43,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:43,386 INFO L470 AbstractCegarLoop]: Abstraction has 5213 states and 24702 transitions. [2022-03-15 15:28:43,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:43,386 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24702 transitions. [2022-03-15 15:28:43,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:43,397 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:43,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:43,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-03-15 15:28:43,397 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:43,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:43,397 INFO L85 PathProgramCache]: Analyzing trace with hash 486063529, now seen corresponding path program 285 times [2022-03-15 15:28:43,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:43,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885420588] [2022-03-15 15:28:43,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:43,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:43,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:43,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885420588] [2022-03-15 15:28:43,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885420588] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:43,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:43,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:43,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330300035] [2022-03-15 15:28:43,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:43,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:43,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:43,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:43,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:43,537 INFO L87 Difference]: Start difference. First operand 5213 states and 24702 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:43,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:43,735 INFO L93 Difference]: Finished difference Result 11934 states and 53217 transitions. [2022-03-15 15:28:43,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:43,735 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:43,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:43,769 INFO L225 Difference]: With dead ends: 11934 [2022-03-15 15:28:43,770 INFO L226 Difference]: Without dead ends: 11392 [2022-03-15 15:28:43,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:43,770 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 167 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:43,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 206 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:43,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11392 states. [2022-03-15 15:28:43,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11392 to 5321. [2022-03-15 15:28:43,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5320 states have (on average 4.718421052631579) internal successors, (25102), 5320 states have internal predecessors, (25102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:43,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 25102 transitions. [2022-03-15 15:28:43,917 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 25102 transitions. Word has length 29 [2022-03-15 15:28:43,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:43,917 INFO L470 AbstractCegarLoop]: Abstraction has 5321 states and 25102 transitions. [2022-03-15 15:28:43,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:43,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 25102 transitions. [2022-03-15 15:28:43,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:43,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:43,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:43,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-03-15 15:28:43,927 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:43,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:43,927 INFO L85 PathProgramCache]: Analyzing trace with hash 405173673, now seen corresponding path program 286 times [2022-03-15 15:28:43,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:43,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839665065] [2022-03-15 15:28:43,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:43,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:44,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:44,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:44,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839665065] [2022-03-15 15:28:44,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839665065] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:44,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:44,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:44,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679665974] [2022-03-15 15:28:44,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:44,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:44,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:44,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:44,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:44,091 INFO L87 Difference]: Start difference. First operand 5321 states and 25102 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:44,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:44,292 INFO L93 Difference]: Finished difference Result 11863 states and 52834 transitions. [2022-03-15 15:28:44,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:44,292 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:44,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:44,325 INFO L225 Difference]: With dead ends: 11863 [2022-03-15 15:28:44,325 INFO L226 Difference]: Without dead ends: 11284 [2022-03-15 15:28:44,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:44,325 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 148 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:44,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 233 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:44,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11284 states. [2022-03-15 15:28:44,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11284 to 5213. [2022-03-15 15:28:44,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.729086722947045) internal successors, (24648), 5212 states have internal predecessors, (24648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:44,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24648 transitions. [2022-03-15 15:28:44,459 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24648 transitions. Word has length 29 [2022-03-15 15:28:44,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:44,459 INFO L470 AbstractCegarLoop]: Abstraction has 5213 states and 24648 transitions. [2022-03-15 15:28:44,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:44,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24648 transitions. [2022-03-15 15:28:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:44,468 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:44,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:44,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-03-15 15:28:44,469 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:44,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:44,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1468411143, now seen corresponding path program 287 times [2022-03-15 15:28:44,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:44,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227233952] [2022-03-15 15:28:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:44,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:44,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:44,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227233952] [2022-03-15 15:28:44,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227233952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:44,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:44,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:44,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452136054] [2022-03-15 15:28:44,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:44,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:44,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:44,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:44,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:44,584 INFO L87 Difference]: Start difference. First operand 5213 states and 24648 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:44,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:44,771 INFO L93 Difference]: Finished difference Result 11772 states and 52503 transitions. [2022-03-15 15:28:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:44,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:44,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:44,809 INFO L225 Difference]: With dead ends: 11772 [2022-03-15 15:28:44,809 INFO L226 Difference]: Without dead ends: 11295 [2022-03-15 15:28:44,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:44,810 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 158 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:44,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 234 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:44,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11295 states. [2022-03-15 15:28:44,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11295 to 5289. [2022-03-15 15:28:44,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 4.7155824508320725) internal successors, (24936), 5288 states have internal predecessors, (24936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:44,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 24936 transitions. [2022-03-15 15:28:44,957 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 24936 transitions. Word has length 29 [2022-03-15 15:28:44,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:44,957 INFO L470 AbstractCegarLoop]: Abstraction has 5289 states and 24936 transitions. [2022-03-15 15:28:44,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:44,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 24936 transitions. [2022-03-15 15:28:44,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:44,967 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:44,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:44,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-03-15 15:28:44,967 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:44,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:44,967 INFO L85 PathProgramCache]: Analyzing trace with hash -26267415, now seen corresponding path program 288 times [2022-03-15 15:28:44,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:44,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196352635] [2022-03-15 15:28:44,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:44,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:45,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:45,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:45,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196352635] [2022-03-15 15:28:45,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196352635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:45,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:45,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:45,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330581146] [2022-03-15 15:28:45,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:45,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:45,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:45,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:45,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:45,075 INFO L87 Difference]: Start difference. First operand 5289 states and 24936 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:45,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:45,242 INFO L93 Difference]: Finished difference Result 11766 states and 52410 transitions. [2022-03-15 15:28:45,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:45,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:45,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:45,274 INFO L225 Difference]: With dead ends: 11766 [2022-03-15 15:28:45,275 INFO L226 Difference]: Without dead ends: 11121 [2022-03-15 15:28:45,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:45,275 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 179 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:45,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 196 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:45,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2022-03-15 15:28:45,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 5115. [2022-03-15 15:28:45,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.756941728588189) internal successors, (24327), 5114 states have internal predecessors, (24327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:45,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24327 transitions. [2022-03-15 15:28:45,409 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24327 transitions. Word has length 29 [2022-03-15 15:28:45,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:45,409 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24327 transitions. [2022-03-15 15:28:45,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24327 transitions. [2022-03-15 15:28:45,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:45,418 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:45,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:45,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-03-15 15:28:45,419 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:45,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:45,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2090055207, now seen corresponding path program 289 times [2022-03-15 15:28:45,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:45,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8253794] [2022-03-15 15:28:45,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:45,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:45,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:45,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:45,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8253794] [2022-03-15 15:28:45,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8253794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:45,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:45,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:45,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727331067] [2022-03-15 15:28:45,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:45,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:45,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:45,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:45,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:45,526 INFO L87 Difference]: Start difference. First operand 5115 states and 24327 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:45,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:45,736 INFO L93 Difference]: Finished difference Result 11189 states and 49984 transitions. [2022-03-15 15:28:45,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:45,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:45,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:45,768 INFO L225 Difference]: With dead ends: 11189 [2022-03-15 15:28:45,768 INFO L226 Difference]: Without dead ends: 10774 [2022-03-15 15:28:45,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:45,769 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 162 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:45,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 226 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:45,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10774 states. [2022-03-15 15:28:45,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10774 to 5243. [2022-03-15 15:28:45,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.7491415490270885) internal successors, (24895), 5242 states have internal predecessors, (24895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:45,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24895 transitions. [2022-03-15 15:28:45,904 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24895 transitions. Word has length 29 [2022-03-15 15:28:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:45,904 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 24895 transitions. [2022-03-15 15:28:45,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:45,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24895 transitions. [2022-03-15 15:28:45,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:45,914 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:45,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:45,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-03-15 15:28:45,914 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:45,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:45,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1104851177, now seen corresponding path program 290 times [2022-03-15 15:28:45,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:45,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983116584] [2022-03-15 15:28:45,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:45,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:46,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:46,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:46,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983116584] [2022-03-15 15:28:46,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983116584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:46,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:46,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:46,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918726481] [2022-03-15 15:28:46,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:46,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:46,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:46,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:46,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:46,080 INFO L87 Difference]: Start difference. First operand 5243 states and 24895 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:46,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:46,247 INFO L93 Difference]: Finished difference Result 11316 states and 50463 transitions. [2022-03-15 15:28:46,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:46,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:46,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:46,278 INFO L225 Difference]: With dead ends: 11316 [2022-03-15 15:28:46,278 INFO L226 Difference]: Without dead ends: 10694 [2022-03-15 15:28:46,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:46,279 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 199 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:46,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 191 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:46,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10694 states. [2022-03-15 15:28:46,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10694 to 5163. [2022-03-15 15:28:46,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.754552499031383) internal successors, (24543), 5162 states have internal predecessors, (24543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:46,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24543 transitions. [2022-03-15 15:28:46,411 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24543 transitions. Word has length 29 [2022-03-15 15:28:46,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:46,412 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 24543 transitions. [2022-03-15 15:28:46,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:46,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24543 transitions. [2022-03-15 15:28:46,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:46,421 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:46,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:46,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-03-15 15:28:46,421 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:46,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:46,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2120124091, now seen corresponding path program 291 times [2022-03-15 15:28:46,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:46,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007513440] [2022-03-15 15:28:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:46,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:46,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:46,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:46,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007513440] [2022-03-15 15:28:46,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007513440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:46,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:46,569 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:46,569 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382518577] [2022-03-15 15:28:46,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:46,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:46,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:46,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:46,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:46,569 INFO L87 Difference]: Start difference. First operand 5163 states and 24543 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:46,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:46,780 INFO L93 Difference]: Finished difference Result 11014 states and 49201 transitions. [2022-03-15 15:28:46,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:46,780 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:46,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:46,815 INFO L225 Difference]: With dead ends: 11014 [2022-03-15 15:28:46,815 INFO L226 Difference]: Without dead ends: 10599 [2022-03-15 15:28:46,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:46,815 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 188 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:46,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 192 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:46,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10599 states. [2022-03-15 15:28:46,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10599 to 5195. [2022-03-15 15:28:46,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.7468232576049285) internal successors, (24655), 5194 states have internal predecessors, (24655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:46,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24655 transitions. [2022-03-15 15:28:46,968 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24655 transitions. Word has length 29 [2022-03-15 15:28:46,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:46,968 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24655 transitions. [2022-03-15 15:28:46,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:46,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24655 transitions. [2022-03-15 15:28:46,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:46,979 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:46,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:46,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-03-15 15:28:46,979 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:46,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:46,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1452658177, now seen corresponding path program 292 times [2022-03-15 15:28:46,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:46,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722885835] [2022-03-15 15:28:46,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:46,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:47,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:47,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722885835] [2022-03-15 15:28:47,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722885835] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:47,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:47,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:47,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741503577] [2022-03-15 15:28:47,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:47,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:47,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:47,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:47,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:47,161 INFO L87 Difference]: Start difference. First operand 5195 states and 24655 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:47,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:47,380 INFO L93 Difference]: Finished difference Result 11014 states and 49169 transitions. [2022-03-15 15:28:47,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:47,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:47,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:47,415 INFO L225 Difference]: With dead ends: 11014 [2022-03-15 15:28:47,415 INFO L226 Difference]: Without dead ends: 10567 [2022-03-15 15:28:47,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:47,415 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 165 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:47,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 208 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:47,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10567 states. [2022-03-15 15:28:47,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10567 to 5163. [2022-03-15 15:28:47,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.7514529252227815) internal successors, (24527), 5162 states have internal predecessors, (24527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:47,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24527 transitions. [2022-03-15 15:28:47,576 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24527 transitions. Word has length 29 [2022-03-15 15:28:47,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:47,577 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 24527 transitions. [2022-03-15 15:28:47,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:47,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24527 transitions. [2022-03-15 15:28:47,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:47,587 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:47,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:47,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-03-15 15:28:47,588 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:47,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:47,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1958223263, now seen corresponding path program 293 times [2022-03-15 15:28:47,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:47,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812161151] [2022-03-15 15:28:47,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:47,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:47,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:47,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812161151] [2022-03-15 15:28:47,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812161151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:47,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:47,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:47,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438671542] [2022-03-15 15:28:47,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:47,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:47,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:47,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:47,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:47,745 INFO L87 Difference]: Start difference. First operand 5163 states and 24527 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:47,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:47,928 INFO L93 Difference]: Finished difference Result 11316 states and 50463 transitions. [2022-03-15 15:28:47,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:47,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:47,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:47,958 INFO L225 Difference]: With dead ends: 11316 [2022-03-15 15:28:47,959 INFO L226 Difference]: Without dead ends: 10774 [2022-03-15 15:28:47,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:47,959 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:47,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 219 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:47,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10774 states. [2022-03-15 15:28:48,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10774 to 5243. [2022-03-15 15:28:48,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.733880198397558) internal successors, (24815), 5242 states have internal predecessors, (24815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:48,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24815 transitions. [2022-03-15 15:28:48,090 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24815 transitions. Word has length 29 [2022-03-15 15:28:48,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:48,090 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 24815 transitions. [2022-03-15 15:28:48,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:48,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24815 transitions. [2022-03-15 15:28:48,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:48,100 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:48,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:48,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-03-15 15:28:48,100 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:48,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:48,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1751415297, now seen corresponding path program 294 times [2022-03-15 15:28:48,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:48,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729080390] [2022-03-15 15:28:48,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:48,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:48,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:48,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:48,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729080390] [2022-03-15 15:28:48,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729080390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:48,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:48,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:48,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133050499] [2022-03-15 15:28:48,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:48,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:48,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:48,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:48,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:48,274 INFO L87 Difference]: Start difference. First operand 5243 states and 24815 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:48,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:48,452 INFO L93 Difference]: Finished difference Result 11189 states and 49856 transitions. [2022-03-15 15:28:48,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:48,452 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:48,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:48,487 INFO L225 Difference]: With dead ends: 11189 [2022-03-15 15:28:48,487 INFO L226 Difference]: Without dead ends: 10662 [2022-03-15 15:28:48,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:48,487 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 176 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:48,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 217 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:48,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10662 states. [2022-03-15 15:28:48,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10662 to 5131. [2022-03-15 15:28:48,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.756140350877193) internal successors, (24399), 5130 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:48,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24399 transitions. [2022-03-15 15:28:48,670 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24399 transitions. Word has length 29 [2022-03-15 15:28:48,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:48,670 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24399 transitions. [2022-03-15 15:28:48,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:48,670 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24399 transitions. [2022-03-15 15:28:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:48,685 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:48,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:48,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-03-15 15:28:48,685 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:48,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:48,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1719941371, now seen corresponding path program 295 times [2022-03-15 15:28:48,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:48,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046325187] [2022-03-15 15:28:48,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:48,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:48,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:48,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:48,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046325187] [2022-03-15 15:28:48,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046325187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:48,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:48,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:48,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087179695] [2022-03-15 15:28:48,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:48,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:48,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:48,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:48,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:48,885 INFO L87 Difference]: Start difference. First operand 5131 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:49,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:49,103 INFO L93 Difference]: Finished difference Result 11297 states and 50484 transitions. [2022-03-15 15:28:49,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:49,103 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:49,134 INFO L225 Difference]: With dead ends: 11297 [2022-03-15 15:28:49,134 INFO L226 Difference]: Without dead ends: 10882 [2022-03-15 15:28:49,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:49,134 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 166 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:49,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 223 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:49,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2022-03-15 15:28:49,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 5251. [2022-03-15 15:28:49,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.747238095238095) internal successors, (24923), 5250 states have internal predecessors, (24923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:49,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24923 transitions. [2022-03-15 15:28:49,266 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24923 transitions. Word has length 29 [2022-03-15 15:28:49,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:49,266 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24923 transitions. [2022-03-15 15:28:49,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:49,266 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24923 transitions. [2022-03-15 15:28:49,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:49,276 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:49,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:49,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-03-15 15:28:49,276 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:49,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:49,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1589821895, now seen corresponding path program 296 times [2022-03-15 15:28:49,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:49,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819004815] [2022-03-15 15:28:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:49,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:49,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:49,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:49,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819004815] [2022-03-15 15:28:49,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819004815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:49,456 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:49,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:49,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623953125] [2022-03-15 15:28:49,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:49,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:49,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:49,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:49,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:49,456 INFO L87 Difference]: Start difference. First operand 5251 states and 24923 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:49,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:49,718 INFO L93 Difference]: Finished difference Result 11424 states and 50963 transitions. [2022-03-15 15:28:49,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:49,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:49,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:49,754 INFO L225 Difference]: With dead ends: 11424 [2022-03-15 15:28:49,754 INFO L226 Difference]: Without dead ends: 10802 [2022-03-15 15:28:49,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:49,754 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 169 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:49,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 225 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:49,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10802 states. [2022-03-15 15:28:49,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10802 to 5171. [2022-03-15 15:28:49,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.751063829787234) internal successors, (24563), 5170 states have internal predecessors, (24563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:49,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24563 transitions. [2022-03-15 15:28:49,919 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24563 transitions. Word has length 29 [2022-03-15 15:28:49,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:49,920 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24563 transitions. [2022-03-15 15:28:49,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:49,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24563 transitions. [2022-03-15 15:28:49,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:49,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:49,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:49,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-03-15 15:28:49,930 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:49,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:49,931 INFO L85 PathProgramCache]: Analyzing trace with hash -37893563, now seen corresponding path program 297 times [2022-03-15 15:28:49,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:49,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809812105] [2022-03-15 15:28:49,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:49,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:50,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:50,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809812105] [2022-03-15 15:28:50,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809812105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:50,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:50,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:50,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217185869] [2022-03-15 15:28:50,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:50,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:50,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:50,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:50,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:50,076 INFO L87 Difference]: Start difference. First operand 5171 states and 24563 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:50,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:50,273 INFO L93 Difference]: Finished difference Result 11194 states and 50025 transitions. [2022-03-15 15:28:50,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:50,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:50,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:50,304 INFO L225 Difference]: With dead ends: 11194 [2022-03-15 15:28:50,304 INFO L226 Difference]: Without dead ends: 10779 [2022-03-15 15:28:50,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:50,304 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 185 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:50,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 192 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10779 states. [2022-03-15 15:28:50,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10779 to 5219. [2022-03-15 15:28:50,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.741088539670372) internal successors, (24739), 5218 states have internal predecessors, (24739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:50,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24739 transitions. [2022-03-15 15:28:50,438 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24739 transitions. Word has length 29 [2022-03-15 15:28:50,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:50,438 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24739 transitions. [2022-03-15 15:28:50,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:50,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24739 transitions. [2022-03-15 15:28:50,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:50,448 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:50,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:50,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-03-15 15:28:50,448 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:50,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:50,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1655622361, now seen corresponding path program 298 times [2022-03-15 15:28:50,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:50,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234351924] [2022-03-15 15:28:50,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:50,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:50,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:50,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:50,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234351924] [2022-03-15 15:28:50,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234351924] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:50,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:50,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:50,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343261948] [2022-03-15 15:28:50,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:50,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:50,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:50,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:50,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:50,612 INFO L87 Difference]: Start difference. First operand 5219 states and 24739 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:50,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:50,848 INFO L93 Difference]: Finished difference Result 11250 states and 50229 transitions. [2022-03-15 15:28:50,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:50,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:50,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:50,881 INFO L225 Difference]: With dead ends: 11250 [2022-03-15 15:28:50,881 INFO L226 Difference]: Without dead ends: 10731 [2022-03-15 15:28:50,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:50,881 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 151 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:50,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 266 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:28:50,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10731 states. [2022-03-15 15:28:50,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10731 to 5171. [2022-03-15 15:28:51,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.74642166344294) internal successors, (24539), 5170 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:51,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24539 transitions. [2022-03-15 15:28:51,020 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24539 transitions. Word has length 29 [2022-03-15 15:28:51,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:51,020 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24539 transitions. [2022-03-15 15:28:51,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:51,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24539 transitions. [2022-03-15 15:28:51,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:51,029 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:51,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:51,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-03-15 15:28:51,029 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:51,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:51,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1937717399, now seen corresponding path program 299 times [2022-03-15 15:28:51,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:51,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491247148] [2022-03-15 15:28:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:51,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:51,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:51,167 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:51,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491247148] [2022-03-15 15:28:51,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491247148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:51,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:51,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:51,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719960731] [2022-03-15 15:28:51,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:51,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:51,168 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:51,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:51,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:51,168 INFO L87 Difference]: Start difference. First operand 5171 states and 24539 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:51,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:51,345 INFO L93 Difference]: Finished difference Result 11508 states and 51339 transitions. [2022-03-15 15:28:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:51,345 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:51,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:51,376 INFO L225 Difference]: With dead ends: 11508 [2022-03-15 15:28:51,377 INFO L226 Difference]: Without dead ends: 10966 [2022-03-15 15:28:51,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:51,377 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 168 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:51,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 212 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:51,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2022-03-15 15:28:51,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 5279. [2022-03-15 15:28:51,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.725085259568019) internal successors, (24939), 5278 states have internal predecessors, (24939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:51,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24939 transitions. [2022-03-15 15:28:51,515 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24939 transitions. Word has length 29 [2022-03-15 15:28:51,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:51,515 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 24939 transitions. [2022-03-15 15:28:51,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:51,515 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24939 transitions. [2022-03-15 15:28:51,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:51,525 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:51,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:51,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-03-15 15:28:51,525 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:51,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:51,525 INFO L85 PathProgramCache]: Analyzing trace with hash -2027477049, now seen corresponding path program 300 times [2022-03-15 15:28:51,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:51,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61566236] [2022-03-15 15:28:51,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:51,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:51,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:51,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:51,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61566236] [2022-03-15 15:28:51,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61566236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:51,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:51,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:51,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064689048] [2022-03-15 15:28:51,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:51,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:51,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:51,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:51,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:51,674 INFO L87 Difference]: Start difference. First operand 5279 states and 24939 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:51,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:51,902 INFO L93 Difference]: Finished difference Result 11437 states and 50956 transitions. [2022-03-15 15:28:51,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:51,902 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:51,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:51,936 INFO L225 Difference]: With dead ends: 11437 [2022-03-15 15:28:51,936 INFO L226 Difference]: Without dead ends: 10818 [2022-03-15 15:28:51,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:51,936 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 154 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:51,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 218 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:51,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10818 states. [2022-03-15 15:28:52,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10818 to 5131. [2022-03-15 15:28:52,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.753021442495127) internal successors, (24383), 5130 states have internal predecessors, (24383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:52,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24383 transitions. [2022-03-15 15:28:52,090 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24383 transitions. Word has length 29 [2022-03-15 15:28:52,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:52,090 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24383 transitions. [2022-03-15 15:28:52,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:52,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24383 transitions. [2022-03-15 15:28:52,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:52,101 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:52,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:52,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-03-15 15:28:52,101 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:52,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:52,101 INFO L85 PathProgramCache]: Analyzing trace with hash -531292701, now seen corresponding path program 301 times [2022-03-15 15:28:52,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:52,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406228689] [2022-03-15 15:28:52,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:52,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:52,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:52,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:52,277 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406228689] [2022-03-15 15:28:52,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406228689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:52,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:52,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:52,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986544060] [2022-03-15 15:28:52,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:52,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:52,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:52,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:52,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:52,278 INFO L87 Difference]: Start difference. First operand 5131 states and 24383 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:52,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:52,469 INFO L93 Difference]: Finished difference Result 10863 states and 48558 transitions. [2022-03-15 15:28:52,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:52,469 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:52,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:52,503 INFO L225 Difference]: With dead ends: 10863 [2022-03-15 15:28:52,503 INFO L226 Difference]: Without dead ends: 10448 [2022-03-15 15:28:52,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:52,503 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 181 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:52,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 202 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:52,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10448 states. [2022-03-15 15:28:52,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10448 to 5179. [2022-03-15 15:28:52,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.746040942448822) internal successors, (24575), 5178 states have internal predecessors, (24575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:52,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24575 transitions. [2022-03-15 15:28:52,671 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24575 transitions. Word has length 29 [2022-03-15 15:28:52,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:52,671 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24575 transitions. [2022-03-15 15:28:52,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:52,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24575 transitions. [2022-03-15 15:28:52,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:52,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:52,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:52,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-03-15 15:28:52,682 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:52,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:52,682 INFO L85 PathProgramCache]: Analyzing trace with hash 136173213, now seen corresponding path program 302 times [2022-03-15 15:28:52,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:52,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986793362] [2022-03-15 15:28:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:52,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:52,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:52,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:52,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986793362] [2022-03-15 15:28:52,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986793362] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:52,834 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:52,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:52,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65722636] [2022-03-15 15:28:52,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:52,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:52,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:52,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:52,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:52,835 INFO L87 Difference]: Start difference. First operand 5179 states and 24575 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:53,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:53,002 INFO L93 Difference]: Finished difference Result 10863 states and 48526 transitions. [2022-03-15 15:28:53,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:53,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:53,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:53,035 INFO L225 Difference]: With dead ends: 10863 [2022-03-15 15:28:53,035 INFO L226 Difference]: Without dead ends: 10416 [2022-03-15 15:28:53,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:53,036 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 166 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:53,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 220 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:53,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10416 states. [2022-03-15 15:28:53,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10416 to 5147. [2022-03-15 15:28:53,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.750680139914497) internal successors, (24447), 5146 states have internal predecessors, (24447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:53,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24447 transitions. [2022-03-15 15:28:53,184 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24447 transitions. Word has length 29 [2022-03-15 15:28:53,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:53,184 INFO L470 AbstractCegarLoop]: Abstraction has 5147 states and 24447 transitions. [2022-03-15 15:28:53,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:53,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24447 transitions. [2022-03-15 15:28:53,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:53,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:53,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:53,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-03-15 15:28:53,195 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:53,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:53,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1705252411, now seen corresponding path program 303 times [2022-03-15 15:28:53,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:53,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774741257] [2022-03-15 15:28:53,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:53,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:53,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:53,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774741257] [2022-03-15 15:28:53,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774741257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:53,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:53,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:53,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637966081] [2022-03-15 15:28:53,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:53,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:53,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:53,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:53,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:53,341 INFO L87 Difference]: Start difference. First operand 5147 states and 24447 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:53,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:53,530 INFO L93 Difference]: Finished difference Result 10935 states and 48874 transitions. [2022-03-15 15:28:53,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:53,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:53,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:53,569 INFO L225 Difference]: With dead ends: 10935 [2022-03-15 15:28:53,569 INFO L226 Difference]: Without dead ends: 10520 [2022-03-15 15:28:53,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:53,570 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 167 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:53,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 225 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:53,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2022-03-15 15:28:53,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 5195. [2022-03-15 15:28:53,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.7406623026569115) internal successors, (24623), 5194 states have internal predecessors, (24623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:53,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24623 transitions. [2022-03-15 15:28:53,742 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24623 transitions. Word has length 29 [2022-03-15 15:28:53,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:53,743 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24623 transitions. [2022-03-15 15:28:53,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:53,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24623 transitions. [2022-03-15 15:28:53,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:53,753 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:53,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:53,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-03-15 15:28:53,753 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:53,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:53,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1778734907, now seen corresponding path program 304 times [2022-03-15 15:28:53,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:53,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145074340] [2022-03-15 15:28:53,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:53,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:53,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:53,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:53,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145074340] [2022-03-15 15:28:53,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145074340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:53,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:53,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:53,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652097278] [2022-03-15 15:28:53,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:53,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:53,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:53,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:53,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:53,889 INFO L87 Difference]: Start difference. First operand 5195 states and 24623 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:54,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:54,118 INFO L93 Difference]: Finished difference Result 10991 states and 49078 transitions. [2022-03-15 15:28:54,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:54,118 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:54,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:54,150 INFO L225 Difference]: With dead ends: 10991 [2022-03-15 15:28:54,151 INFO L226 Difference]: Without dead ends: 10472 [2022-03-15 15:28:54,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:54,151 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 155 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:54,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 217 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:54,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10472 states. [2022-03-15 15:28:54,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10472 to 5147. [2022-03-15 15:28:54,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.747570928876797) internal successors, (24431), 5146 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:54,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24431 transitions. [2022-03-15 15:28:54,288 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24431 transitions. Word has length 29 [2022-03-15 15:28:54,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:54,289 INFO L470 AbstractCegarLoop]: Abstraction has 5147 states and 24431 transitions. [2022-03-15 15:28:54,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:54,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24431 transitions. [2022-03-15 15:28:54,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:54,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:54,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:54,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-03-15 15:28:54,299 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:54,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:54,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1956863203, now seen corresponding path program 305 times [2022-03-15 15:28:54,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:54,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405532163] [2022-03-15 15:28:54,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:54,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:54,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:54,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:54,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405532163] [2022-03-15 15:28:54,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405532163] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:54,483 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:54,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:54,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15692624] [2022-03-15 15:28:54,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:54,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:54,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:54,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:54,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:54,484 INFO L87 Difference]: Start difference. First operand 5147 states and 24431 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:54,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:54,664 INFO L93 Difference]: Finished difference Result 10935 states and 48858 transitions. [2022-03-15 15:28:54,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:54,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:54,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:54,697 INFO L225 Difference]: With dead ends: 10935 [2022-03-15 15:28:54,697 INFO L226 Difference]: Without dead ends: 10520 [2022-03-15 15:28:54,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:54,697 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:54,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 204 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:54,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2022-03-15 15:28:54,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 5195. [2022-03-15 15:28:54,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.737581825182903) internal successors, (24607), 5194 states have internal predecessors, (24607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:54,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24607 transitions. [2022-03-15 15:28:54,827 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24607 transitions. Word has length 29 [2022-03-15 15:28:54,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:54,827 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24607 transitions. [2022-03-15 15:28:54,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:54,827 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24607 transitions. [2022-03-15 15:28:54,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:54,837 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:54,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:54,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-03-15 15:28:54,837 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:54,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:54,837 INFO L85 PathProgramCache]: Analyzing trace with hash 2131296127, now seen corresponding path program 306 times [2022-03-15 15:28:54,837 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:54,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508391538] [2022-03-15 15:28:54,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:54,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:55,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:55,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:55,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508391538] [2022-03-15 15:28:55,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508391538] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:55,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:55,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:55,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515931751] [2022-03-15 15:28:55,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:55,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:55,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:55,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:55,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:55,045 INFO L87 Difference]: Start difference. First operand 5195 states and 24607 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:55,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:55,249 INFO L93 Difference]: Finished difference Result 10991 states and 49062 transitions. [2022-03-15 15:28:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:55,249 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:55,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:55,280 INFO L225 Difference]: With dead ends: 10991 [2022-03-15 15:28:55,280 INFO L226 Difference]: Without dead ends: 10456 [2022-03-15 15:28:55,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:55,281 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 145 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:55,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 235 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:55,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10456 states. [2022-03-15 15:28:55,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10456 to 5131. [2022-03-15 15:28:55,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.751461988304094) internal successors, (24375), 5130 states have internal predecessors, (24375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:55,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24375 transitions. [2022-03-15 15:28:55,414 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24375 transitions. Word has length 29 [2022-03-15 15:28:55,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:55,414 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24375 transitions. [2022-03-15 15:28:55,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:55,414 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24375 transitions. [2022-03-15 15:28:55,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:55,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:55,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:55,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-03-15 15:28:55,423 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:55,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:55,423 INFO L85 PathProgramCache]: Analyzing trace with hash -688206019, now seen corresponding path program 307 times [2022-03-15 15:28:55,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:55,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947982734] [2022-03-15 15:28:55,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:55,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:55,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:55,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:55,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947982734] [2022-03-15 15:28:55,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947982734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:55,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:55,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:55,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840310572] [2022-03-15 15:28:55,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:55,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:55,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:55,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:55,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:55,601 INFO L87 Difference]: Start difference. First operand 5131 states and 24375 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:55,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:55,770 INFO L93 Difference]: Finished difference Result 11424 states and 50987 transitions. [2022-03-15 15:28:55,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:55,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:55,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:55,801 INFO L225 Difference]: With dead ends: 11424 [2022-03-15 15:28:55,802 INFO L226 Difference]: Without dead ends: 10882 [2022-03-15 15:28:55,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:55,802 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 162 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:55,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 226 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:55,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2022-03-15 15:28:55,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 5251. [2022-03-15 15:28:55,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.736571428571429) internal successors, (24867), 5250 states have internal predecessors, (24867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:55,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24867 transitions. [2022-03-15 15:28:55,941 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24867 transitions. Word has length 29 [2022-03-15 15:28:55,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:55,941 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24867 transitions. [2022-03-15 15:28:55,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:55,941 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24867 transitions. [2022-03-15 15:28:55,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:55,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:55,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:55,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-03-15 15:28:55,951 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:55,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:55,951 INFO L85 PathProgramCache]: Analyzing trace with hash -895013985, now seen corresponding path program 308 times [2022-03-15 15:28:55,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:55,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947412159] [2022-03-15 15:28:55,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:55,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:56,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:56,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:56,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947412159] [2022-03-15 15:28:56,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947412159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:56,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:56,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:56,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081112548] [2022-03-15 15:28:56,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:56,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:56,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:56,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:56,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:56,077 INFO L87 Difference]: Start difference. First operand 5251 states and 24867 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:56,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:56,240 INFO L93 Difference]: Finished difference Result 11297 states and 50380 transitions. [2022-03-15 15:28:56,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:56,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:56,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:56,274 INFO L225 Difference]: With dead ends: 11297 [2022-03-15 15:28:56,274 INFO L226 Difference]: Without dead ends: 10802 [2022-03-15 15:28:56,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:56,274 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 169 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:56,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 204 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:56,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10802 states. [2022-03-15 15:28:56,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10802 to 5171. [2022-03-15 15:28:56,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.74642166344294) internal successors, (24539), 5170 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:56,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24539 transitions. [2022-03-15 15:28:56,510 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24539 transitions. Word has length 29 [2022-03-15 15:28:56,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:56,511 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24539 transitions. [2022-03-15 15:28:56,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:56,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24539 transitions. [2022-03-15 15:28:56,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:56,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:56,521 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:56,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-03-15 15:28:56,521 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:56,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:56,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1862165729, now seen corresponding path program 309 times [2022-03-15 15:28:56,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:56,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136458660] [2022-03-15 15:28:56,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:56,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:56,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:56,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:56,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136458660] [2022-03-15 15:28:56,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136458660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:56,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:56,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:56,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402543925] [2022-03-15 15:28:56,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:56,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:56,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:56,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:56,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:56,642 INFO L87 Difference]: Start difference. First operand 5171 states and 24539 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:56,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:56,805 INFO L93 Difference]: Finished difference Result 11508 states and 51339 transitions. [2022-03-15 15:28:56,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:56,805 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:56,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:56,837 INFO L225 Difference]: With dead ends: 11508 [2022-03-15 15:28:56,837 INFO L226 Difference]: Without dead ends: 10966 [2022-03-15 15:28:56,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:56,837 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 147 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:56,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 230 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:56,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2022-03-15 15:28:56,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 5279. [2022-03-15 15:28:56,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.725085259568019) internal successors, (24939), 5278 states have internal predecessors, (24939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:56,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24939 transitions. [2022-03-15 15:28:56,978 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24939 transitions. Word has length 29 [2022-03-15 15:28:56,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:56,978 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 24939 transitions. [2022-03-15 15:28:56,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:56,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24939 transitions. [2022-03-15 15:28:56,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:56,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:56,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:56,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-03-15 15:28:56,989 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:56,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:56,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1194498719, now seen corresponding path program 310 times [2022-03-15 15:28:56,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:56,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418285910] [2022-03-15 15:28:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:56,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:57,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:57,099 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:57,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418285910] [2022-03-15 15:28:57,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418285910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:57,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:57,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:57,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076590488] [2022-03-15 15:28:57,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:57,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:57,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:57,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:57,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:57,107 INFO L87 Difference]: Start difference. First operand 5279 states and 24939 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:57,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:57,323 INFO L93 Difference]: Finished difference Result 11437 states and 50956 transitions. [2022-03-15 15:28:57,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:57,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:57,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:57,355 INFO L225 Difference]: With dead ends: 11437 [2022-03-15 15:28:57,355 INFO L226 Difference]: Without dead ends: 10858 [2022-03-15 15:28:57,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:57,355 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 148 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:57,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 247 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:57,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10858 states. [2022-03-15 15:28:57,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10858 to 5171. [2022-03-15 15:28:57,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.738684719535783) internal successors, (24499), 5170 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:57,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24499 transitions. [2022-03-15 15:28:57,490 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24499 transitions. Word has length 29 [2022-03-15 15:28:57,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:57,491 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24499 transitions. [2022-03-15 15:28:57,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:57,491 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24499 transitions. [2022-03-15 15:28:57,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:57,502 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:57,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:57,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-03-15 15:28:57,502 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:57,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:57,503 INFO L85 PathProgramCache]: Analyzing trace with hash 839878273, now seen corresponding path program 311 times [2022-03-15 15:28:57,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:57,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340135530] [2022-03-15 15:28:57,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:57,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:57,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:57,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:57,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340135530] [2022-03-15 15:28:57,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340135530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:57,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:57,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:57,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476575454] [2022-03-15 15:28:57,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:57,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:57,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:57,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:57,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:57,635 INFO L87 Difference]: Start difference. First operand 5171 states and 24499 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:57,807 INFO L93 Difference]: Finished difference Result 11194 states and 49961 transitions. [2022-03-15 15:28:57,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:57,807 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:57,839 INFO L225 Difference]: With dead ends: 11194 [2022-03-15 15:28:57,839 INFO L226 Difference]: Without dead ends: 10779 [2022-03-15 15:28:57,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:57,840 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 172 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:57,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 205 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:57,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10779 states. [2022-03-15 15:28:57,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10779 to 5219. [2022-03-15 15:28:57,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.728823303947872) internal successors, (24675), 5218 states have internal predecessors, (24675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:57,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24675 transitions. [2022-03-15 15:28:57,974 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24675 transitions. Word has length 29 [2022-03-15 15:28:57,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:57,974 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24675 transitions. [2022-03-15 15:28:57,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:57,975 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24675 transitions. [2022-03-15 15:28:57,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:57,984 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:57,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:57,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-03-15 15:28:57,984 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:57,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:57,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1276201377, now seen corresponding path program 312 times [2022-03-15 15:28:57,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:57,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058214143] [2022-03-15 15:28:57,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:57,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:58,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:58,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:58,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058214143] [2022-03-15 15:28:58,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058214143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:58,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:58,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:58,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376895783] [2022-03-15 15:28:58,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:58,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:58,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:58,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:58,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:58,144 INFO L87 Difference]: Start difference. First operand 5219 states and 24675 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:58,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:58,363 INFO L93 Difference]: Finished difference Result 11250 states and 50165 transitions. [2022-03-15 15:28:58,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:58,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:58,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:58,394 INFO L225 Difference]: With dead ends: 11250 [2022-03-15 15:28:58,394 INFO L226 Difference]: Without dead ends: 10675 [2022-03-15 15:28:58,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:58,394 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 156 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:58,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 208 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:58,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10675 states. [2022-03-15 15:28:58,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10675 to 5115. [2022-03-15 15:28:58,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.755377395385217) internal successors, (24319), 5114 states have internal predecessors, (24319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:58,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24319 transitions. [2022-03-15 15:28:58,541 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24319 transitions. Word has length 29 [2022-03-15 15:28:58,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:58,542 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24319 transitions. [2022-03-15 15:28:58,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:58,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24319 transitions. [2022-03-15 15:28:58,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:58,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:58,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:58,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-03-15 15:28:58,552 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:58,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:58,552 INFO L85 PathProgramCache]: Analyzing trace with hash -499157789, now seen corresponding path program 313 times [2022-03-15 15:28:58,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:58,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331057338] [2022-03-15 15:28:58,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:58,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:58,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:58,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:58,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331057338] [2022-03-15 15:28:58,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331057338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:58,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:58,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:58,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521446640] [2022-03-15 15:28:58,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:58,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:58,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:58,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:58,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:58,709 INFO L87 Difference]: Start difference. First operand 5115 states and 24319 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:58,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:58,961 INFO L93 Difference]: Finished difference Result 10730 states and 47974 transitions. [2022-03-15 15:28:58,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:58,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:58,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:58,995 INFO L225 Difference]: With dead ends: 10730 [2022-03-15 15:28:58,995 INFO L226 Difference]: Without dead ends: 10315 [2022-03-15 15:28:58,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:58,995 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 160 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:58,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 235 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:28:59,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10315 states. [2022-03-15 15:28:59,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10315 to 5187. [2022-03-15 15:28:59,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.747204010798304) internal successors, (24619), 5186 states have internal predecessors, (24619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:59,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24619 transitions. [2022-03-15 15:28:59,146 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24619 transitions. Word has length 29 [2022-03-15 15:28:59,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:59,146 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24619 transitions. [2022-03-15 15:28:59,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:59,146 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24619 transitions. [2022-03-15 15:28:59,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:59,157 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:59,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:59,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-03-15 15:28:59,157 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:59,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:59,157 INFO L85 PathProgramCache]: Analyzing trace with hash -269870779, now seen corresponding path program 314 times [2022-03-15 15:28:59,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:59,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050338157] [2022-03-15 15:28:59,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:59,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:59,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:59,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:59,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050338157] [2022-03-15 15:28:59,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050338157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:59,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:59,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:59,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406902331] [2022-03-15 15:28:59,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:59,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:59,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:59,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:59,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:59,323 INFO L87 Difference]: Start difference. First operand 5187 states and 24619 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:59,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:59,509 INFO L93 Difference]: Finished difference Result 10792 states and 48195 transitions. [2022-03-15 15:28:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:59,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:59,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:28:59,543 INFO L225 Difference]: With dead ends: 10792 [2022-03-15 15:28:59,543 INFO L226 Difference]: Without dead ends: 10267 [2022-03-15 15:28:59,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:28:59,544 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 149 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:28:59,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 236 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:28:59,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10267 states. [2022-03-15 15:28:59,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10267 to 5139. [2022-03-15 15:28:59,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.7541845075905025) internal successors, (24427), 5138 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:59,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24427 transitions. [2022-03-15 15:28:59,695 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24427 transitions. Word has length 29 [2022-03-15 15:28:59,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:28:59,695 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24427 transitions. [2022-03-15 15:28:59,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:59,695 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24427 transitions. [2022-03-15 15:28:59,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:28:59,705 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:28:59,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:28:59,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-03-15 15:28:59,705 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:28:59,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:28:59,705 INFO L85 PathProgramCache]: Analyzing trace with hash -980059835, now seen corresponding path program 315 times [2022-03-15 15:28:59,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:28:59,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974841691] [2022-03-15 15:28:59,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:28:59,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:28:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:28:59,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:28:59,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:28:59,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974841691] [2022-03-15 15:28:59,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974841691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:28:59,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:28:59,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:28:59,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484872370] [2022-03-15 15:28:59,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:28:59,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:28:59,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:28:59,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:28:59,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:28:59,819 INFO L87 Difference]: Start difference. First operand 5139 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:28:59,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:28:59,987 INFO L93 Difference]: Finished difference Result 10652 states and 47609 transitions. [2022-03-15 15:28:59,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:28:59,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:28:59,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:00,023 INFO L225 Difference]: With dead ends: 10652 [2022-03-15 15:29:00,023 INFO L226 Difference]: Without dead ends: 10237 [2022-03-15 15:29:00,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:00,024 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 168 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:00,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 211 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:00,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10237 states. [2022-03-15 15:29:00,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10237 to 5171. [2022-03-15 15:29:00,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.74642166344294) internal successors, (24539), 5170 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:00,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24539 transitions. [2022-03-15 15:29:00,165 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24539 transitions. Word has length 29 [2022-03-15 15:29:00,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:00,165 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24539 transitions. [2022-03-15 15:29:00,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:00,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24539 transitions. [2022-03-15 15:29:00,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:00,175 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:00,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:00,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-03-15 15:29:00,176 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:00,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:00,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1794032227, now seen corresponding path program 316 times [2022-03-15 15:29:00,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:00,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086713106] [2022-03-15 15:29:00,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:00,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:00,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:00,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:00,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086713106] [2022-03-15 15:29:00,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086713106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:00,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:00,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:00,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012340487] [2022-03-15 15:29:00,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:00,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:00,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:00,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:00,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:00,290 INFO L87 Difference]: Start difference. First operand 5171 states and 24539 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:00,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:00,439 INFO L93 Difference]: Finished difference Result 10652 states and 47577 transitions. [2022-03-15 15:29:00,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:00,439 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:00,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:00,472 INFO L225 Difference]: With dead ends: 10652 [2022-03-15 15:29:00,472 INFO L226 Difference]: Without dead ends: 10205 [2022-03-15 15:29:00,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:00,472 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 167 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:00,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 200 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:00,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10205 states. [2022-03-15 15:29:00,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10205 to 5139. [2022-03-15 15:29:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.751070455430129) internal successors, (24411), 5138 states have internal predecessors, (24411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:00,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24411 transitions. [2022-03-15 15:29:00,639 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24411 transitions. Word has length 29 [2022-03-15 15:29:00,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:00,639 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24411 transitions. [2022-03-15 15:29:00,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:00,639 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24411 transitions. [2022-03-15 15:29:00,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:00,650 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:00,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:00,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-03-15 15:29:00,650 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:00,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:00,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1658336739, now seen corresponding path program 317 times [2022-03-15 15:29:00,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:00,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863815459] [2022-03-15 15:29:00,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:00,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:00,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:00,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:00,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863815459] [2022-03-15 15:29:00,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863815459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:00,798 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:00,798 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:00,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523722025] [2022-03-15 15:29:00,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:00,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:00,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:00,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:00,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:00,799 INFO L87 Difference]: Start difference. First operand 5139 states and 24411 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:00,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:00,968 INFO L93 Difference]: Finished difference Result 10792 states and 48211 transitions. [2022-03-15 15:29:00,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:00,968 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:00,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:01,002 INFO L225 Difference]: With dead ends: 10792 [2022-03-15 15:29:01,002 INFO L226 Difference]: Without dead ends: 10315 [2022-03-15 15:29:01,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:01,002 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 171 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:01,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 204 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:01,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10315 states. [2022-03-15 15:29:01,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10315 to 5187. [2022-03-15 15:29:01,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.74103355187042) internal successors, (24587), 5186 states have internal predecessors, (24587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:01,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24587 transitions. [2022-03-15 15:29:01,160 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24587 transitions. Word has length 29 [2022-03-15 15:29:01,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:01,160 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24587 transitions. [2022-03-15 15:29:01,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:01,161 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24587 transitions. [2022-03-15 15:29:01,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:01,171 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:01,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:01,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-03-15 15:29:01,171 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:01,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:01,171 INFO L85 PathProgramCache]: Analyzing trace with hash -577274113, now seen corresponding path program 318 times [2022-03-15 15:29:01,171 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:01,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911530996] [2022-03-15 15:29:01,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:01,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:01,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:01,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911530996] [2022-03-15 15:29:01,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911530996] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:01,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:01,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:01,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212325916] [2022-03-15 15:29:01,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:01,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:01,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:01,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:01,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:01,285 INFO L87 Difference]: Start difference. First operand 5187 states and 24587 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:01,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:01,446 INFO L93 Difference]: Finished difference Result 10730 states and 47894 transitions. [2022-03-15 15:29:01,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:01,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:01,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:01,489 INFO L225 Difference]: With dead ends: 10730 [2022-03-15 15:29:01,490 INFO L226 Difference]: Without dead ends: 10251 [2022-03-15 15:29:01,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:01,490 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 163 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:01,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 200 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:01,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10251 states. [2022-03-15 15:29:01,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10251 to 5123. [2022-03-15 15:29:01,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.754978524014057) internal successors, (24355), 5122 states have internal predecessors, (24355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:01,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24355 transitions. [2022-03-15 15:29:01,657 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24355 transitions. Word has length 29 [2022-03-15 15:29:01,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:01,657 INFO L470 AbstractCegarLoop]: Abstraction has 5123 states and 24355 transitions. [2022-03-15 15:29:01,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24355 transitions. [2022-03-15 15:29:01,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:01,668 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:01,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:01,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-03-15 15:29:01,668 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:01,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:01,668 INFO L85 PathProgramCache]: Analyzing trace with hash 901959749, now seen corresponding path program 319 times [2022-03-15 15:29:01,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:01,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228410522] [2022-03-15 15:29:01,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:01,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:01,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:01,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:01,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228410522] [2022-03-15 15:29:01,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228410522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:01,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:01,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:01,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334401145] [2022-03-15 15:29:01,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:01,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:01,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:01,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:01,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:01,789 INFO L87 Difference]: Start difference. First operand 5123 states and 24355 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:01,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:01,988 INFO L93 Difference]: Finished difference Result 10838 states and 48482 transitions. [2022-03-15 15:29:01,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:01,988 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:01,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:02,024 INFO L225 Difference]: With dead ends: 10838 [2022-03-15 15:29:02,024 INFO L226 Difference]: Without dead ends: 10423 [2022-03-15 15:29:02,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:02,024 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 167 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:02,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 232 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:02,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2022-03-15 15:29:02,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5195. [2022-03-15 15:29:02,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.7468232576049285) internal successors, (24655), 5194 states have internal predecessors, (24655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:02,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24655 transitions. [2022-03-15 15:29:02,179 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24655 transitions. Word has length 29 [2022-03-15 15:29:02,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:02,179 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24655 transitions. [2022-03-15 15:29:02,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:02,179 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24655 transitions. [2022-03-15 15:29:02,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:02,191 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:02,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:02,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-03-15 15:29:02,191 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:02,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:02,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1131246759, now seen corresponding path program 320 times [2022-03-15 15:29:02,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:02,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370979689] [2022-03-15 15:29:02,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:02,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:02,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:02,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:02,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370979689] [2022-03-15 15:29:02,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370979689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:02,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:02,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:02,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411310440] [2022-03-15 15:29:02,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:02,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:02,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:02,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:02,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:02,322 INFO L87 Difference]: Start difference. First operand 5195 states and 24655 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:02,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:02,517 INFO L93 Difference]: Finished difference Result 10900 states and 48703 transitions. [2022-03-15 15:29:02,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:02,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:02,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:02,553 INFO L225 Difference]: With dead ends: 10900 [2022-03-15 15:29:02,553 INFO L226 Difference]: Without dead ends: 10375 [2022-03-15 15:29:02,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:02,553 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 157 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:02,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 235 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:02,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10375 states. [2022-03-15 15:29:02,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10375 to 5147. [2022-03-15 15:29:02,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.752234745433347) internal successors, (24455), 5146 states have internal predecessors, (24455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:02,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24455 transitions. [2022-03-15 15:29:02,711 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24455 transitions. Word has length 29 [2022-03-15 15:29:02,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:02,711 INFO L470 AbstractCegarLoop]: Abstraction has 5147 states and 24455 transitions. [2022-03-15 15:29:02,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:02,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24455 transitions. [2022-03-15 15:29:02,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:02,721 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:02,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:02,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-03-15 15:29:02,721 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:02,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:02,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1291921477, now seen corresponding path program 321 times [2022-03-15 15:29:02,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:02,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942888990] [2022-03-15 15:29:02,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:02,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:02,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:02,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:02,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942888990] [2022-03-15 15:29:02,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942888990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:02,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:02,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:02,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108858590] [2022-03-15 15:29:02,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:02,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:02,843 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:02,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:02,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:02,843 INFO L87 Difference]: Start difference. First operand 5147 states and 24455 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:03,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:03,008 INFO L93 Difference]: Finished difference Result 10832 states and 48441 transitions. [2022-03-15 15:29:03,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:03,009 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:03,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:03,042 INFO L225 Difference]: With dead ends: 10832 [2022-03-15 15:29:03,042 INFO L226 Difference]: Without dead ends: 10417 [2022-03-15 15:29:03,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:03,042 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 169 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:03,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 209 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:03,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2022-03-15 15:29:03,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 5195. [2022-03-15 15:29:03,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.742202541393916) internal successors, (24631), 5194 states have internal predecessors, (24631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24631 transitions. [2022-03-15 15:29:03,272 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24631 transitions. Word has length 29 [2022-03-15 15:29:03,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:03,272 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24631 transitions. [2022-03-15 15:29:03,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:03,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24631 transitions. [2022-03-15 15:29:03,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:03,283 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:03,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:03,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-03-15 15:29:03,284 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:03,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:03,285 INFO L85 PathProgramCache]: Analyzing trace with hash -50843707, now seen corresponding path program 322 times [2022-03-15 15:29:03,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:03,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175451706] [2022-03-15 15:29:03,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:03,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:03,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:03,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:03,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175451706] [2022-03-15 15:29:03,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175451706] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:03,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:03,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:03,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615858386] [2022-03-15 15:29:03,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:03,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:03,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:03,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:03,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:03,391 INFO L87 Difference]: Start difference. First operand 5195 states and 24631 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:03,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:03,572 INFO L93 Difference]: Finished difference Result 10888 states and 48645 transitions. [2022-03-15 15:29:03,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:03,573 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:03,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:03,603 INFO L225 Difference]: With dead ends: 10888 [2022-03-15 15:29:03,603 INFO L226 Difference]: Without dead ends: 10369 [2022-03-15 15:29:03,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:03,603 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 154 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:03,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 228 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:03,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10369 states. [2022-03-15 15:29:03,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10369 to 5147. [2022-03-15 15:29:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.747570928876797) internal successors, (24431), 5146 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:03,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24431 transitions. [2022-03-15 15:29:03,763 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24431 transitions. Word has length 29 [2022-03-15 15:29:03,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:03,763 INFO L470 AbstractCegarLoop]: Abstraction has 5147 states and 24431 transitions. [2022-03-15 15:29:03,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:03,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24431 transitions. [2022-03-15 15:29:03,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:03,775 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:03,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:03,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-03-15 15:29:03,775 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:03,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:03,775 INFO L85 PathProgramCache]: Analyzing trace with hash -765955161, now seen corresponding path program 323 times [2022-03-15 15:29:03,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:03,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631334694] [2022-03-15 15:29:03,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:03,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:03,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:03,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:03,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631334694] [2022-03-15 15:29:03,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631334694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:03,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:03,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:03,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190371597] [2022-03-15 15:29:03,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:03,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:03,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:03,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:03,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:03,888 INFO L87 Difference]: Start difference. First operand 5147 states and 24431 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:04,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:04,071 INFO L93 Difference]: Finished difference Result 10984 states and 49095 transitions. [2022-03-15 15:29:04,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:04,071 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:04,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:04,106 INFO L225 Difference]: With dead ends: 10984 [2022-03-15 15:29:04,106 INFO L226 Difference]: Without dead ends: 10507 [2022-03-15 15:29:04,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:04,106 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 152 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:04,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 227 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:04,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10507 states. [2022-03-15 15:29:04,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10507 to 5223. [2022-03-15 15:29:04,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.733626962849483) internal successors, (24719), 5222 states have internal predecessors, (24719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:04,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24719 transitions. [2022-03-15 15:29:04,263 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24719 transitions. Word has length 29 [2022-03-15 15:29:04,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:04,263 INFO L470 AbstractCegarLoop]: Abstraction has 5223 states and 24719 transitions. [2022-03-15 15:29:04,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:04,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24719 transitions. [2022-03-15 15:29:04,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:04,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:04,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:04,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-03-15 15:29:04,276 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:04,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:04,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1506907259, now seen corresponding path program 324 times [2022-03-15 15:29:04,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:04,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176396535] [2022-03-15 15:29:04,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:04,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:04,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:04,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:04,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176396535] [2022-03-15 15:29:04,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176396535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:04,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:04,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:04,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779965044] [2022-03-15 15:29:04,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:04,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:04,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:04,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:04,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:04,383 INFO L87 Difference]: Start difference. First operand 5223 states and 24719 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:04,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:04,544 INFO L93 Difference]: Finished difference Result 10978 states and 49002 transitions. [2022-03-15 15:29:04,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:04,545 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:04,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:04,577 INFO L225 Difference]: With dead ends: 10978 [2022-03-15 15:29:04,577 INFO L226 Difference]: Without dead ends: 10407 [2022-03-15 15:29:04,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:04,578 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 173 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:04,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 197 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:04,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10407 states. [2022-03-15 15:29:04,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10407 to 5123. [2022-03-15 15:29:04,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.753416634127294) internal successors, (24347), 5122 states have internal predecessors, (24347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:04,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24347 transitions. [2022-03-15 15:29:04,730 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24347 transitions. Word has length 29 [2022-03-15 15:29:04,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:04,730 INFO L470 AbstractCegarLoop]: Abstraction has 5123 states and 24347 transitions. [2022-03-15 15:29:04,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:04,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24347 transitions. [2022-03-15 15:29:04,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:04,740 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:04,741 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:04,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-03-15 15:29:04,741 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:04,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:04,741 INFO L85 PathProgramCache]: Analyzing trace with hash 112573479, now seen corresponding path program 325 times [2022-03-15 15:29:04,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:04,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479492691] [2022-03-15 15:29:04,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:04,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:04,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:04,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:04,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479492691] [2022-03-15 15:29:04,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479492691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:04,847 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:04,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:04,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514523485] [2022-03-15 15:29:04,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:04,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:04,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:04,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:04,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:04,848 INFO L87 Difference]: Start difference. First operand 5123 states and 24347 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:05,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:05,023 INFO L93 Difference]: Finished difference Result 10646 states and 47592 transitions. [2022-03-15 15:29:05,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:05,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:05,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:05,062 INFO L225 Difference]: With dead ends: 10646 [2022-03-15 15:29:05,062 INFO L226 Difference]: Without dead ends: 10231 [2022-03-15 15:29:05,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:05,063 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 173 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:05,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 212 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:05,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10231 states. [2022-03-15 15:29:05,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10231 to 5171. [2022-03-15 15:29:05,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.74642166344294) internal successors, (24539), 5170 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:05,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24539 transitions. [2022-03-15 15:29:05,244 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24539 transitions. Word has length 29 [2022-03-15 15:29:05,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:05,244 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24539 transitions. [2022-03-15 15:29:05,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:05,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24539 transitions. [2022-03-15 15:29:05,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:05,257 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:05,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:05,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-03-15 15:29:05,257 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:05,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:05,258 INFO L85 PathProgramCache]: Analyzing trace with hash -701398913, now seen corresponding path program 326 times [2022-03-15 15:29:05,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:05,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317672455] [2022-03-15 15:29:05,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:05,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:05,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:05,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:05,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317672455] [2022-03-15 15:29:05,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317672455] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:05,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:05,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:05,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104025764] [2022-03-15 15:29:05,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:05,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:05,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:05,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:05,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:05,380 INFO L87 Difference]: Start difference. First operand 5171 states and 24539 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:05,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:05,574 INFO L93 Difference]: Finished difference Result 10646 states and 47560 transitions. [2022-03-15 15:29:05,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:05,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:05,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:05,607 INFO L225 Difference]: With dead ends: 10646 [2022-03-15 15:29:05,607 INFO L226 Difference]: Without dead ends: 10199 [2022-03-15 15:29:05,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:05,608 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 160 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:05,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 257 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:05,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10199 states. [2022-03-15 15:29:05,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10199 to 5139. [2022-03-15 15:29:05,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.751070455430129) internal successors, (24411), 5138 states have internal predecessors, (24411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:05,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24411 transitions. [2022-03-15 15:29:05,747 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24411 transitions. Word has length 29 [2022-03-15 15:29:05,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:05,747 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24411 transitions. [2022-03-15 15:29:05,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:05,747 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24411 transitions. [2022-03-15 15:29:05,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:05,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:05,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:05,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-03-15 15:29:05,756 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:05,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:05,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1920439163, now seen corresponding path program 327 times [2022-03-15 15:29:05,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:05,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680200356] [2022-03-15 15:29:05,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:05,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:05,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:05,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:05,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680200356] [2022-03-15 15:29:05,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680200356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:05,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:05,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:05,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483827185] [2022-03-15 15:29:05,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:05,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:05,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:05,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:05,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:05,909 INFO L87 Difference]: Start difference. First operand 5139 states and 24411 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:06,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:06,108 INFO L93 Difference]: Finished difference Result 10718 states and 47908 transitions. [2022-03-15 15:29:06,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:06,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:06,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:06,139 INFO L225 Difference]: With dead ends: 10718 [2022-03-15 15:29:06,139 INFO L226 Difference]: Without dead ends: 10303 [2022-03-15 15:29:06,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:06,139 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:06,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 207 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:06,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10303 states. [2022-03-15 15:29:06,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10303 to 5187. [2022-03-15 15:29:06,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.74103355187042) internal successors, (24587), 5186 states have internal predecessors, (24587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:06,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24587 transitions. [2022-03-15 15:29:06,272 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24587 transitions. Word has length 29 [2022-03-15 15:29:06,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:06,272 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24587 transitions. [2022-03-15 15:29:06,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:06,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24587 transitions. [2022-03-15 15:29:06,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:06,281 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:06,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:06,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-03-15 15:29:06,281 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:06,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:06,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1658758055, now seen corresponding path program 328 times [2022-03-15 15:29:06,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:06,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785279334] [2022-03-15 15:29:06,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:06,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:06,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:06,434 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:06,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785279334] [2022-03-15 15:29:06,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785279334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:06,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:06,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:06,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744872077] [2022-03-15 15:29:06,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:06,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:06,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:06,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:06,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:06,435 INFO L87 Difference]: Start difference. First operand 5187 states and 24587 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:06,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:06,664 INFO L93 Difference]: Finished difference Result 10774 states and 48112 transitions. [2022-03-15 15:29:06,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:06,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:06,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:06,701 INFO L225 Difference]: With dead ends: 10774 [2022-03-15 15:29:06,702 INFO L226 Difference]: Without dead ends: 10255 [2022-03-15 15:29:06,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:06,702 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:06,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 250 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:06,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10255 states. [2022-03-15 15:29:06,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10255 to 5139. [2022-03-15 15:29:06,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.747956403269755) internal successors, (24395), 5138 states have internal predecessors, (24395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:06,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24395 transitions. [2022-03-15 15:29:06,854 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24395 transitions. Word has length 29 [2022-03-15 15:29:06,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:06,854 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24395 transitions. [2022-03-15 15:29:06,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:06,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24395 transitions. [2022-03-15 15:29:06,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:06,864 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:06,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:06,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-03-15 15:29:06,864 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:06,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:06,865 INFO L85 PathProgramCache]: Analyzing trace with hash -547407331, now seen corresponding path program 329 times [2022-03-15 15:29:06,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:06,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594454153] [2022-03-15 15:29:06,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:06,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:06,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:06,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:06,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594454153] [2022-03-15 15:29:06,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594454153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:06,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:06,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:06,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428938082] [2022-03-15 15:29:06,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:06,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:06,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:06,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:06,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:06,985 INFO L87 Difference]: Start difference. First operand 5139 states and 24395 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:07,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:07,187 INFO L93 Difference]: Finished difference Result 10718 states and 47892 transitions. [2022-03-15 15:29:07,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:07,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:07,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:07,223 INFO L225 Difference]: With dead ends: 10718 [2022-03-15 15:29:07,223 INFO L226 Difference]: Without dead ends: 10303 [2022-03-15 15:29:07,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:07,223 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 142 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:07,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 277 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:07,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10303 states. [2022-03-15 15:29:07,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10303 to 5187. [2022-03-15 15:29:07,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.737948322406479) internal successors, (24571), 5186 states have internal predecessors, (24571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:07,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24571 transitions. [2022-03-15 15:29:07,403 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24571 transitions. Word has length 29 [2022-03-15 15:29:07,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:07,404 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24571 transitions. [2022-03-15 15:29:07,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:07,404 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24571 transitions. [2022-03-15 15:29:07,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:07,415 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:07,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:07,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-03-15 15:29:07,415 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:07,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:07,415 INFO L85 PathProgramCache]: Analyzing trace with hash -754215297, now seen corresponding path program 330 times [2022-03-15 15:29:07,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:07,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381028646] [2022-03-15 15:29:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:07,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:07,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:07,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381028646] [2022-03-15 15:29:07,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381028646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:07,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:07,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:07,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911318671] [2022-03-15 15:29:07,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:07,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:07,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:07,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:07,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:07,536 INFO L87 Difference]: Start difference. First operand 5187 states and 24571 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:07,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:07,711 INFO L93 Difference]: Finished difference Result 10774 states and 48096 transitions. [2022-03-15 15:29:07,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:07,712 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:07,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:07,746 INFO L225 Difference]: With dead ends: 10774 [2022-03-15 15:29:07,746 INFO L226 Difference]: Without dead ends: 10239 [2022-03-15 15:29:07,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:07,746 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:07,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 212 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:07,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10239 states. [2022-03-15 15:29:07,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10239 to 5123. [2022-03-15 15:29:07,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.751854744240531) internal successors, (24339), 5122 states have internal predecessors, (24339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:07,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24339 transitions. [2022-03-15 15:29:07,918 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24339 transitions. Word has length 29 [2022-03-15 15:29:07,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:07,918 INFO L470 AbstractCegarLoop]: Abstraction has 5123 states and 24339 transitions. [2022-03-15 15:29:07,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:07,918 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24339 transitions. [2022-03-15 15:29:07,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:07,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:07,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:07,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-03-15 15:29:07,930 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:07,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:07,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1273329309, now seen corresponding path program 331 times [2022-03-15 15:29:07,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:07,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272022768] [2022-03-15 15:29:07,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:07,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:08,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:08,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:08,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272022768] [2022-03-15 15:29:08,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272022768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:08,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:08,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:08,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572205128] [2022-03-15 15:29:08,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:08,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:08,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:08,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:08,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:08,056 INFO L87 Difference]: Start difference. First operand 5123 states and 24339 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:08,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:08,248 INFO L93 Difference]: Finished difference Result 10900 states and 48735 transitions. [2022-03-15 15:29:08,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:08,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:08,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:08,283 INFO L225 Difference]: With dead ends: 10900 [2022-03-15 15:29:08,283 INFO L226 Difference]: Without dead ends: 10423 [2022-03-15 15:29:08,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:08,283 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 145 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:08,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 250 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:08,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2022-03-15 15:29:08,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5195. [2022-03-15 15:29:08,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.74374278013092) internal successors, (24639), 5194 states have internal predecessors, (24639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:08,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24639 transitions. [2022-03-15 15:29:08,446 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24639 transitions. Word has length 29 [2022-03-15 15:29:08,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:08,446 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24639 transitions. [2022-03-15 15:29:08,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:08,446 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24639 transitions. [2022-03-15 15:29:08,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:08,457 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:08,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:08,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-03-15 15:29:08,457 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:08,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:08,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1940575361, now seen corresponding path program 332 times [2022-03-15 15:29:08,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:08,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482549635] [2022-03-15 15:29:08,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:08,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:08,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:08,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:08,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482549635] [2022-03-15 15:29:08,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482549635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:08,625 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:08,625 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:08,625 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672878675] [2022-03-15 15:29:08,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:08,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:08,625 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:08,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:08,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:08,625 INFO L87 Difference]: Start difference. First operand 5195 states and 24639 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:08,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:08,809 INFO L93 Difference]: Finished difference Result 10838 states and 48418 transitions. [2022-03-15 15:29:08,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:08,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:08,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:08,840 INFO L225 Difference]: With dead ends: 10838 [2022-03-15 15:29:08,840 INFO L226 Difference]: Without dead ends: 10375 [2022-03-15 15:29:08,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:08,841 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 167 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:08,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 194 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:08,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10375 states. [2022-03-15 15:29:08,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10375 to 5147. [2022-03-15 15:29:08,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.749125534395647) internal successors, (24439), 5146 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:08,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24439 transitions. [2022-03-15 15:29:08,973 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24439 transitions. Word has length 29 [2022-03-15 15:29:08,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:08,973 INFO L470 AbstractCegarLoop]: Abstraction has 5147 states and 24439 transitions. [2022-03-15 15:29:08,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:08,973 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24439 transitions. [2022-03-15 15:29:08,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:08,983 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:08,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:08,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-03-15 15:29:08,984 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:08,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:08,984 INFO L85 PathProgramCache]: Analyzing trace with hash 99369599, now seen corresponding path program 333 times [2022-03-15 15:29:08,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:08,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179761724] [2022-03-15 15:29:08,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:08,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:09,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:09,164 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:09,164 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179761724] [2022-03-15 15:29:09,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179761724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:09,164 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:09,164 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:09,164 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960129659] [2022-03-15 15:29:09,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:09,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:09,164 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:09,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:09,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:09,165 INFO L87 Difference]: Start difference. First operand 5147 states and 24439 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:09,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:09,363 INFO L93 Difference]: Finished difference Result 10984 states and 49103 transitions. [2022-03-15 15:29:09,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:09,364 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:09,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:09,396 INFO L225 Difference]: With dead ends: 10984 [2022-03-15 15:29:09,396 INFO L226 Difference]: Without dead ends: 10507 [2022-03-15 15:29:09,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:09,396 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 160 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:09,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 214 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:09,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10507 states. [2022-03-15 15:29:09,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10507 to 5223. [2022-03-15 15:29:09,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.735158942933742) internal successors, (24727), 5222 states have internal predecessors, (24727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:09,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24727 transitions. [2022-03-15 15:29:09,541 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24727 transitions. Word has length 29 [2022-03-15 15:29:09,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:09,541 INFO L470 AbstractCegarLoop]: Abstraction has 5223 states and 24727 transitions. [2022-03-15 15:29:09,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:09,541 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24727 transitions. [2022-03-15 15:29:09,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:09,551 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:09,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:09,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-03-15 15:29:09,552 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:09,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:09,552 INFO L85 PathProgramCache]: Analyzing trace with hash 148937343, now seen corresponding path program 334 times [2022-03-15 15:29:09,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:09,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151386435] [2022-03-15 15:29:09,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:09,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:09,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:09,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151386435] [2022-03-15 15:29:09,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151386435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:09,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:09,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:09,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106038967] [2022-03-15 15:29:09,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:09,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:09,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:09,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:09,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:09,729 INFO L87 Difference]: Start difference. First operand 5223 states and 24727 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:10,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:10,031 INFO L93 Difference]: Finished difference Result 10978 states and 49010 transitions. [2022-03-15 15:29:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:10,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:10,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:10,069 INFO L225 Difference]: With dead ends: 10978 [2022-03-15 15:29:10,069 INFO L226 Difference]: Without dead ends: 10431 [2022-03-15 15:29:10,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:10,070 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:10,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 210 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:10,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2022-03-15 15:29:10,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 5147. [2022-03-15 15:29:10,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.744461717839099) internal successors, (24415), 5146 states have internal predecessors, (24415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24415 transitions. [2022-03-15 15:29:10,221 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24415 transitions. Word has length 29 [2022-03-15 15:29:10,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:10,222 INFO L470 AbstractCegarLoop]: Abstraction has 5147 states and 24415 transitions. [2022-03-15 15:29:10,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:10,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24415 transitions. [2022-03-15 15:29:10,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:10,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:10,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:10,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-03-15 15:29:10,232 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:10,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:10,232 INFO L85 PathProgramCache]: Analyzing trace with hash 487374561, now seen corresponding path program 335 times [2022-03-15 15:29:10,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:10,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005852772] [2022-03-15 15:29:10,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:10,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:10,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:10,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:10,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005852772] [2022-03-15 15:29:10,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005852772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:10,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:10,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:10,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294398139] [2022-03-15 15:29:10,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:10,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:10,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:10,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:10,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:10,391 INFO L87 Difference]: Start difference. First operand 5147 states and 24415 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:10,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:10,608 INFO L93 Difference]: Finished difference Result 10832 states and 48401 transitions. [2022-03-15 15:29:10,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:10,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:10,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:10,641 INFO L225 Difference]: With dead ends: 10832 [2022-03-15 15:29:10,642 INFO L226 Difference]: Without dead ends: 10417 [2022-03-15 15:29:10,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:10,642 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 156 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:10,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 237 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:10,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2022-03-15 15:29:10,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 5195. [2022-03-15 15:29:10,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.734501347708895) internal successors, (24591), 5194 states have internal predecessors, (24591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:10,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24591 transitions. [2022-03-15 15:29:10,796 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24591 transitions. Word has length 29 [2022-03-15 15:29:10,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:10,796 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24591 transitions. [2022-03-15 15:29:10,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:10,796 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24591 transitions. [2022-03-15 15:29:10,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:10,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:10,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:10,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-03-15 15:29:10,806 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:10,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:10,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1628705089, now seen corresponding path program 336 times [2022-03-15 15:29:10,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:10,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879804961] [2022-03-15 15:29:10,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:10,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:10,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:10,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879804961] [2022-03-15 15:29:10,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879804961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:10,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:10,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:10,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416117417] [2022-03-15 15:29:10,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:10,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:10,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:10,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:10,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:10,954 INFO L87 Difference]: Start difference. First operand 5195 states and 24591 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:11,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:11,129 INFO L93 Difference]: Finished difference Result 10888 states and 48605 transitions. [2022-03-15 15:29:11,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:11,129 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:11,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:11,161 INFO L225 Difference]: With dead ends: 10888 [2022-03-15 15:29:11,161 INFO L226 Difference]: Without dead ends: 10337 [2022-03-15 15:29:11,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:11,162 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 154 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:11,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 213 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:11,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10337 states. [2022-03-15 15:29:11,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10337 to 5115. [2022-03-15 15:29:11,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.754595228783731) internal successors, (24315), 5114 states have internal predecessors, (24315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:11,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24315 transitions. [2022-03-15 15:29:11,307 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24315 transitions. Word has length 29 [2022-03-15 15:29:11,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:11,307 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24315 transitions. [2022-03-15 15:29:11,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:11,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24315 transitions. [2022-03-15 15:29:11,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:11,317 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:11,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:11,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-03-15 15:29:11,318 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:11,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:11,318 INFO L85 PathProgramCache]: Analyzing trace with hash 887419709, now seen corresponding path program 337 times [2022-03-15 15:29:11,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:11,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258720418] [2022-03-15 15:29:11,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:11,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:11,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:11,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:11,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258720418] [2022-03-15 15:29:11,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258720418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:11,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:11,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:11,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004956350] [2022-03-15 15:29:11,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:11,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:11,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:11,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:11,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:11,429 INFO L87 Difference]: Start difference. First operand 5115 states and 24315 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:11,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:11,598 INFO L93 Difference]: Finished difference Result 11849 states and 52853 transitions. [2022-03-15 15:29:11,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:11,598 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:11,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:11,634 INFO L225 Difference]: With dead ends: 11849 [2022-03-15 15:29:11,635 INFO L226 Difference]: Without dead ends: 11307 [2022-03-15 15:29:11,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:11,635 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 154 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:11,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 231 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:11,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2022-03-15 15:29:11,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 5342. [2022-03-15 15:29:11,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5341 states have (on average 4.72757910503651) internal successors, (25250), 5341 states have internal predecessors, (25250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:11,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 25250 transitions. [2022-03-15 15:29:11,820 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 25250 transitions. Word has length 29 [2022-03-15 15:29:11,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:11,820 INFO L470 AbstractCegarLoop]: Abstraction has 5342 states and 25250 transitions. [2022-03-15 15:29:11,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:11,821 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 25250 transitions. [2022-03-15 15:29:11,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:11,832 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:11,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:11,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-03-15 15:29:11,833 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:11,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:11,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1968482335, now seen corresponding path program 338 times [2022-03-15 15:29:11,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:11,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371318317] [2022-03-15 15:29:11,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:11,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:12,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:12,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:12,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371318317] [2022-03-15 15:29:12,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371318317] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:12,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:12,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:12,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708610703] [2022-03-15 15:29:12,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:12,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:12,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:12,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:12,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:12,010 INFO L87 Difference]: Start difference. First operand 5342 states and 25250 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:12,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:12,243 INFO L93 Difference]: Finished difference Result 11784 states and 52484 transitions. [2022-03-15 15:29:12,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:12,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:12,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:12,279 INFO L225 Difference]: With dead ends: 11784 [2022-03-15 15:29:12,279 INFO L226 Difference]: Without dead ends: 11164 [2022-03-15 15:29:12,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:12,279 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 155 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:12,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 232 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:12,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11164 states. [2022-03-15 15:29:12,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11164 to 5199. [2022-03-15 15:29:12,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.747018083878415) internal successors, (24675), 5198 states have internal predecessors, (24675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:12,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24675 transitions. [2022-03-15 15:29:12,440 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24675 transitions. Word has length 29 [2022-03-15 15:29:12,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:12,440 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24675 transitions. [2022-03-15 15:29:12,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:12,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24675 transitions. [2022-03-15 15:29:12,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:12,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:12,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:12,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-03-15 15:29:12,451 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:12,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:12,451 INFO L85 PathProgramCache]: Analyzing trace with hash 406517663, now seen corresponding path program 339 times [2022-03-15 15:29:12,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:12,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646794955] [2022-03-15 15:29:12,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:12,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:12,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:12,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:12,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646794955] [2022-03-15 15:29:12,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646794955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:12,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:12,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:12,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871531317] [2022-03-15 15:29:12,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:12,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:12,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:12,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:12,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:12,573 INFO L87 Difference]: Start difference. First operand 5199 states and 24675 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:12,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:12,763 INFO L93 Difference]: Finished difference Result 11724 states and 52266 transitions. [2022-03-15 15:29:12,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:12,764 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:12,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:12,800 INFO L225 Difference]: With dead ends: 11724 [2022-03-15 15:29:12,800 INFO L226 Difference]: Without dead ends: 11182 [2022-03-15 15:29:12,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:12,801 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 172 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:12,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 208 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:12,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11182 states. [2022-03-15 15:29:12,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11182 to 5279. [2022-03-15 15:29:12,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.729632436528989) internal successors, (24963), 5278 states have internal predecessors, (24963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:12,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24963 transitions. [2022-03-15 15:29:12,963 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24963 transitions. Word has length 29 [2022-03-15 15:29:12,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:12,964 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 24963 transitions. [2022-03-15 15:29:12,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:12,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24963 transitions. [2022-03-15 15:29:12,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:12,974 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:12,974 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:12,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-03-15 15:29:12,975 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:12,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:12,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1281728609, now seen corresponding path program 340 times [2022-03-15 15:29:12,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:12,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481169922] [2022-03-15 15:29:12,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:12,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:13,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:13,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:13,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481169922] [2022-03-15 15:29:13,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481169922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:13,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:13,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:13,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36724916] [2022-03-15 15:29:13,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:13,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:13,142 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:13,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:13,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:13,142 INFO L87 Difference]: Start difference. First operand 5279 states and 24963 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:13,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:13,328 INFO L93 Difference]: Finished difference Result 11597 states and 51659 transitions. [2022-03-15 15:29:13,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:13,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:13,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:13,365 INFO L225 Difference]: With dead ends: 11597 [2022-03-15 15:29:13,365 INFO L226 Difference]: Without dead ends: 11102 [2022-03-15 15:29:13,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:13,366 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 158 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:13,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 211 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:13,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11102 states. [2022-03-15 15:29:13,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11102 to 5199. [2022-03-15 15:29:13,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.7393228164678725) internal successors, (24635), 5198 states have internal predecessors, (24635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:13,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24635 transitions. [2022-03-15 15:29:13,525 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24635 transitions. Word has length 29 [2022-03-15 15:29:13,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:13,525 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24635 transitions. [2022-03-15 15:29:13,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:13,525 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24635 transitions. [2022-03-15 15:29:13,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:13,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:13,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:13,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-03-15 15:29:13,536 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:13,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:13,536 INFO L85 PathProgramCache]: Analyzing trace with hash 794522625, now seen corresponding path program 341 times [2022-03-15 15:29:13,536 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:13,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65421134] [2022-03-15 15:29:13,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:13,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:13,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:13,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65421134] [2022-03-15 15:29:13,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65421134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:13,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:13,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:13,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506319583] [2022-03-15 15:29:13,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:13,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:13,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:13,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:13,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:13,747 INFO L87 Difference]: Start difference. First operand 5199 states and 24635 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:13,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:13,975 INFO L93 Difference]: Finished difference Result 11562 states and 51566 transitions. [2022-03-15 15:29:13,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:13,976 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:13,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:14,013 INFO L225 Difference]: With dead ends: 11562 [2022-03-15 15:29:14,013 INFO L226 Difference]: Without dead ends: 11085 [2022-03-15 15:29:14,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:14,013 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 158 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:14,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 217 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:14,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2022-03-15 15:29:14,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 5247. [2022-03-15 15:29:14,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.729508196721311) internal successors, (24811), 5246 states have internal predecessors, (24811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24811 transitions. [2022-03-15 15:29:14,168 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24811 transitions. Word has length 29 [2022-03-15 15:29:14,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:14,168 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 24811 transitions. [2022-03-15 15:29:14,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:14,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24811 transitions. [2022-03-15 15:29:14,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:14,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:14,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:14,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-03-15 15:29:14,179 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:14,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:14,179 INFO L85 PathProgramCache]: Analyzing trace with hash -52274337, now seen corresponding path program 342 times [2022-03-15 15:29:14,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:14,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533379340] [2022-03-15 15:29:14,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:14,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:14,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:14,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533379340] [2022-03-15 15:29:14,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533379340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:14,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:14,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:14,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620290521] [2022-03-15 15:29:14,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:14,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:14,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:14,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:14,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:14,358 INFO L87 Difference]: Start difference. First operand 5247 states and 24811 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:14,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:14,566 INFO L93 Difference]: Finished difference Result 11500 states and 51249 transitions. [2022-03-15 15:29:14,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:14,566 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:14,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:14,604 INFO L225 Difference]: With dead ends: 11500 [2022-03-15 15:29:14,604 INFO L226 Difference]: Without dead ends: 10981 [2022-03-15 15:29:14,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:14,605 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 169 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:14,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 201 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:14,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10981 states. [2022-03-15 15:29:14,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10981 to 5143. [2022-03-15 15:29:14,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.752042007001167) internal successors, (24435), 5142 states have internal predecessors, (24435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:14,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24435 transitions. [2022-03-15 15:29:14,773 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24435 transitions. Word has length 29 [2022-03-15 15:29:14,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:14,773 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24435 transitions. [2022-03-15 15:29:14,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:14,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24435 transitions. [2022-03-15 15:29:14,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:14,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:14,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:14,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-03-15 15:29:14,784 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:14,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:14,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2006430049, now seen corresponding path program 343 times [2022-03-15 15:29:14,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:14,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77339938] [2022-03-15 15:29:14,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:14,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:14,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:14,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77339938] [2022-03-15 15:29:14,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77339938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:14,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:14,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:14,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109434537] [2022-03-15 15:29:14,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:14,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:14,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:14,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:14,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:14,912 INFO L87 Difference]: Start difference. First operand 5143 states and 24435 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:15,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:15,101 INFO L93 Difference]: Finished difference Result 11975 states and 53434 transitions. [2022-03-15 15:29:15,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:15,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:15,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:15,142 INFO L225 Difference]: With dead ends: 11975 [2022-03-15 15:29:15,142 INFO L226 Difference]: Without dead ends: 11433 [2022-03-15 15:29:15,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:15,142 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 151 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:15,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 244 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:15,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11433 states. [2022-03-15 15:29:15,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11433 to 5356. [2022-03-15 15:29:15,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 5355 states have (on average 4.72436974789916) internal successors, (25299), 5355 states have internal predecessors, (25299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 25299 transitions. [2022-03-15 15:29:15,320 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 25299 transitions. Word has length 29 [2022-03-15 15:29:15,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:15,320 INFO L470 AbstractCegarLoop]: Abstraction has 5356 states and 25299 transitions. [2022-03-15 15:29:15,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:15,320 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 25299 transitions. [2022-03-15 15:29:15,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:15,331 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:15,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:15,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-03-15 15:29:15,332 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:15,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:15,332 INFO L85 PathProgramCache]: Analyzing trace with hash -925367423, now seen corresponding path program 344 times [2022-03-15 15:29:15,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:15,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650438696] [2022-03-15 15:29:15,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:15,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:15,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:15,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:15,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650438696] [2022-03-15 15:29:15,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650438696] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:15,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:15,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:15,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212979493] [2022-03-15 15:29:15,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:15,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:15,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:15,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:15,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:15,503 INFO L87 Difference]: Start difference. First operand 5356 states and 25299 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:15,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:15,704 INFO L93 Difference]: Finished difference Result 11910 states and 53065 transitions. [2022-03-15 15:29:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:15,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:15,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:15,741 INFO L225 Difference]: With dead ends: 11910 [2022-03-15 15:29:15,741 INFO L226 Difference]: Without dead ends: 11290 [2022-03-15 15:29:15,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:15,741 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 194 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:15,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 199 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11290 states. [2022-03-15 15:29:15,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11290 to 5213. [2022-03-15 15:29:15,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.740982348426708) internal successors, (24710), 5212 states have internal predecessors, (24710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:15,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24710 transitions. [2022-03-15 15:29:15,899 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24710 transitions. Word has length 29 [2022-03-15 15:29:15,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:15,899 INFO L470 AbstractCegarLoop]: Abstraction has 5213 states and 24710 transitions. [2022-03-15 15:29:15,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:15,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24710 transitions. [2022-03-15 15:29:15,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:15,909 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:15,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:15,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-03-15 15:29:15,909 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:15,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:15,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1616468321, now seen corresponding path program 345 times [2022-03-15 15:29:15,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:15,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915863694] [2022-03-15 15:29:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:15,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:16,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:16,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:16,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915863694] [2022-03-15 15:29:16,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915863694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:16,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:16,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:16,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536077274] [2022-03-15 15:29:16,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:16,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:16,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:16,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:16,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:16,099 INFO L87 Difference]: Start difference. First operand 5213 states and 24710 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:16,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:16,272 INFO L93 Difference]: Finished difference Result 11934 states and 53225 transitions. [2022-03-15 15:29:16,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:16,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:16,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:16,307 INFO L225 Difference]: With dead ends: 11934 [2022-03-15 15:29:16,307 INFO L226 Difference]: Without dead ends: 11392 [2022-03-15 15:29:16,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:16,307 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 175 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:16,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 195 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:16,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11392 states. [2022-03-15 15:29:16,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11392 to 5321. [2022-03-15 15:29:16,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5321 states, 5320 states have (on average 4.719924812030075) internal successors, (25110), 5320 states have internal predecessors, (25110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:16,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5321 states to 5321 states and 25110 transitions. [2022-03-15 15:29:16,468 INFO L78 Accepts]: Start accepts. Automaton has 5321 states and 25110 transitions. Word has length 29 [2022-03-15 15:29:16,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:16,468 INFO L470 AbstractCegarLoop]: Abstraction has 5321 states and 25110 transitions. [2022-03-15 15:29:16,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:16,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5321 states and 25110 transitions. [2022-03-15 15:29:16,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:16,478 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:16,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:16,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-03-15 15:29:16,478 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:16,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:16,479 INFO L85 PathProgramCache]: Analyzing trace with hash 170913439, now seen corresponding path program 346 times [2022-03-15 15:29:16,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:16,479 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168046160] [2022-03-15 15:29:16,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:16,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:16,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:16,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:16,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168046160] [2022-03-15 15:29:16,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168046160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:16,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:16,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:16,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487835657] [2022-03-15 15:29:16,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:16,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:16,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:16,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:16,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:16,659 INFO L87 Difference]: Start difference. First operand 5321 states and 25110 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:16,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:16,868 INFO L93 Difference]: Finished difference Result 11863 states and 52842 transitions. [2022-03-15 15:29:16,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:16,868 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:16,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:16,905 INFO L225 Difference]: With dead ends: 11863 [2022-03-15 15:29:16,905 INFO L226 Difference]: Without dead ends: 11284 [2022-03-15 15:29:16,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:16,905 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 169 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:16,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 188 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:16,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11284 states. [2022-03-15 15:29:17,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11284 to 5213. [2022-03-15 15:29:17,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.730621642363776) internal successors, (24656), 5212 states have internal predecessors, (24656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:17,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24656 transitions. [2022-03-15 15:29:17,127 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24656 transitions. Word has length 29 [2022-03-15 15:29:17,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:17,127 INFO L470 AbstractCegarLoop]: Abstraction has 5213 states and 24656 transitions. [2022-03-15 15:29:17,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:17,127 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24656 transitions. [2022-03-15 15:29:17,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:17,138 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:17,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:17,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-03-15 15:29:17,138 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:17,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:17,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1228463359, now seen corresponding path program 347 times [2022-03-15 15:29:17,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:17,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236492869] [2022-03-15 15:29:17,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:17,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:17,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:17,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:17,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236492869] [2022-03-15 15:29:17,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236492869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:17,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:17,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:17,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736858563] [2022-03-15 15:29:17,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:17,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:17,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:17,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:17,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:17,292 INFO L87 Difference]: Start difference. First operand 5213 states and 24656 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:17,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:17,475 INFO L93 Difference]: Finished difference Result 11772 states and 52511 transitions. [2022-03-15 15:29:17,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:17,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:17,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:17,511 INFO L225 Difference]: With dead ends: 11772 [2022-03-15 15:29:17,512 INFO L226 Difference]: Without dead ends: 11295 [2022-03-15 15:29:17,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:17,512 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:17,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 197 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11295 states. [2022-03-15 15:29:17,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11295 to 5289. [2022-03-15 15:29:17,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 4.717095310136157) internal successors, (24944), 5288 states have internal predecessors, (24944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:17,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 24944 transitions. [2022-03-15 15:29:17,673 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 24944 transitions. Word has length 29 [2022-03-15 15:29:17,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:17,673 INFO L470 AbstractCegarLoop]: Abstraction has 5289 states and 24944 transitions. [2022-03-15 15:29:17,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:17,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 24944 transitions. [2022-03-15 15:29:17,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:17,684 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:17,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:17,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-03-15 15:29:17,684 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:17,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:17,684 INFO L85 PathProgramCache]: Analyzing trace with hash -318858401, now seen corresponding path program 348 times [2022-03-15 15:29:17,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:17,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668745201] [2022-03-15 15:29:17,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:17,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:17,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:17,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:17,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668745201] [2022-03-15 15:29:17,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668745201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:17,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:17,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:17,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617038184] [2022-03-15 15:29:17,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:17,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:17,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:17,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:17,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:17,798 INFO L87 Difference]: Start difference. First operand 5289 states and 24944 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:17,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:17,983 INFO L93 Difference]: Finished difference Result 11766 states and 52418 transitions. [2022-03-15 15:29:17,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:17,983 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:17,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:18,020 INFO L225 Difference]: With dead ends: 11766 [2022-03-15 15:29:18,021 INFO L226 Difference]: Without dead ends: 11149 [2022-03-15 15:29:18,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:18,021 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 165 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:18,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 196 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:18,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11149 states. [2022-03-15 15:29:18,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11149 to 5143. [2022-03-15 15:29:18,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.746596654998055) internal successors, (24407), 5142 states have internal predecessors, (24407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24407 transitions. [2022-03-15 15:29:18,190 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24407 transitions. Word has length 29 [2022-03-15 15:29:18,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:18,190 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24407 transitions. [2022-03-15 15:29:18,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:18,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24407 transitions. [2022-03-15 15:29:18,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:18,201 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:18,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:18,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-03-15 15:29:18,201 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:18,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:18,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1499150977, now seen corresponding path program 349 times [2022-03-15 15:29:18,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:18,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467245045] [2022-03-15 15:29:18,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:18,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:18,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:18,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:18,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467245045] [2022-03-15 15:29:18,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467245045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:18,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:18,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:18,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025441868] [2022-03-15 15:29:18,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:18,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:18,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:18,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:18,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:18,377 INFO L87 Difference]: Start difference. First operand 5143 states and 24407 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:18,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:18,607 INFO L93 Difference]: Finished difference Result 11667 states and 52063 transitions. [2022-03-15 15:29:18,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:18,607 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:18,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:18,641 INFO L225 Difference]: With dead ends: 11667 [2022-03-15 15:29:18,641 INFO L226 Difference]: Without dead ends: 11125 [2022-03-15 15:29:18,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:18,642 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 169 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:18,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 223 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:18,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11125 states. [2022-03-15 15:29:18,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11125 to 5263. [2022-03-15 15:29:18,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.7318510072215885) internal successors, (24899), 5262 states have internal predecessors, (24899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:18,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24899 transitions. [2022-03-15 15:29:18,801 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24899 transitions. Word has length 29 [2022-03-15 15:29:18,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:18,801 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 24899 transitions. [2022-03-15 15:29:18,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:18,801 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24899 transitions. [2022-03-15 15:29:18,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:18,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:18,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:18,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-03-15 15:29:18,812 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:18,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:18,812 INFO L85 PathProgramCache]: Analyzing trace with hash -189095295, now seen corresponding path program 350 times [2022-03-15 15:29:18,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:18,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010848743] [2022-03-15 15:29:18,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:18,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:18,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:18,961 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:18,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010848743] [2022-03-15 15:29:18,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010848743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:18,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:18,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:18,962 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008133315] [2022-03-15 15:29:18,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:18,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:18,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:18,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:18,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:18,962 INFO L87 Difference]: Start difference. First operand 5263 states and 24899 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:19,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:19,144 INFO L93 Difference]: Finished difference Result 11540 states and 51456 transitions. [2022-03-15 15:29:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:19,144 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:19,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:19,180 INFO L225 Difference]: With dead ends: 11540 [2022-03-15 15:29:19,180 INFO L226 Difference]: Without dead ends: 11045 [2022-03-15 15:29:19,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:19,180 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 165 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:19,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 213 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:19,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11045 states. [2022-03-15 15:29:19,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11045 to 5183. [2022-03-15 15:29:19,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.74160555769973) internal successors, (24571), 5182 states have internal predecessors, (24571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:19,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24571 transitions. [2022-03-15 15:29:19,343 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24571 transitions. Word has length 29 [2022-03-15 15:29:19,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:19,343 INFO L470 AbstractCegarLoop]: Abstraction has 5183 states and 24571 transitions. [2022-03-15 15:29:19,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:19,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24571 transitions. [2022-03-15 15:29:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:19,354 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:19,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:19,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-03-15 15:29:19,354 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:19,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:19,354 INFO L85 PathProgramCache]: Analyzing trace with hash -533861665, now seen corresponding path program 351 times [2022-03-15 15:29:19,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:19,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13248403] [2022-03-15 15:29:19,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:19,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:19,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:19,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:19,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13248403] [2022-03-15 15:29:19,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13248403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:19,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:19,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:19,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501439096] [2022-03-15 15:29:19,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:19,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:19,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:19,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:19,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:19,474 INFO L87 Difference]: Start difference. First operand 5183 states and 24571 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:19,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:19,642 INFO L93 Difference]: Finished difference Result 11751 states and 52415 transitions. [2022-03-15 15:29:19,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:19,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:19,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:19,679 INFO L225 Difference]: With dead ends: 11751 [2022-03-15 15:29:19,679 INFO L226 Difference]: Without dead ends: 11209 [2022-03-15 15:29:19,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:19,679 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 165 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:19,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 205 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:19,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2022-03-15 15:29:19,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 5291. [2022-03-15 15:29:19,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 4.720415879017013) internal successors, (24971), 5290 states have internal predecessors, (24971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:19,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 24971 transitions. [2022-03-15 15:29:19,839 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 24971 transitions. Word has length 29 [2022-03-15 15:29:19,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:19,839 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 24971 transitions. [2022-03-15 15:29:19,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:19,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 24971 transitions. [2022-03-15 15:29:19,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:19,849 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:19,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:19,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-03-15 15:29:19,850 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:19,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:19,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1880515201, now seen corresponding path program 352 times [2022-03-15 15:29:19,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:19,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521597031] [2022-03-15 15:29:19,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:19,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:19,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:19,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:19,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521597031] [2022-03-15 15:29:19,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521597031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:19,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:19,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:19,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482674715] [2022-03-15 15:29:19,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:19,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:19,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:19,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:19,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:19,963 INFO L87 Difference]: Start difference. First operand 5291 states and 24971 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:20,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:20,173 INFO L93 Difference]: Finished difference Result 11680 states and 52032 transitions. [2022-03-15 15:29:20,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:20,173 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:20,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:20,207 INFO L225 Difference]: With dead ends: 11680 [2022-03-15 15:29:20,207 INFO L226 Difference]: Without dead ends: 11101 [2022-03-15 15:29:20,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:20,208 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:20,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 240 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:20,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11101 states. [2022-03-15 15:29:20,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11101 to 5183. [2022-03-15 15:29:20,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.733886530297182) internal successors, (24531), 5182 states have internal predecessors, (24531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:20,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24531 transitions. [2022-03-15 15:29:20,373 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24531 transitions. Word has length 29 [2022-03-15 15:29:20,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:20,373 INFO L470 AbstractCegarLoop]: Abstraction has 5183 states and 24531 transitions. [2022-03-15 15:29:20,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:20,373 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24531 transitions. [2022-03-15 15:29:20,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:20,383 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:20,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:20,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-03-15 15:29:20,384 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:20,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:20,385 INFO L85 PathProgramCache]: Analyzing trace with hash -502142335, now seen corresponding path program 353 times [2022-03-15 15:29:20,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:20,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030255141] [2022-03-15 15:29:20,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:20,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:20,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:20,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:20,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030255141] [2022-03-15 15:29:20,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030255141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:20,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:20,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:20,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280957013] [2022-03-15 15:29:20,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:20,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:20,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:20,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:20,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:20,570 INFO L87 Difference]: Start difference. First operand 5183 states and 24531 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:20,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:20,766 INFO L93 Difference]: Finished difference Result 11437 states and 51037 transitions. [2022-03-15 15:29:20,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:20,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:20,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:20,801 INFO L225 Difference]: With dead ends: 11437 [2022-03-15 15:29:20,801 INFO L226 Difference]: Without dead ends: 11022 [2022-03-15 15:29:20,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:20,801 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 153 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:20,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 223 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:20,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11022 states. [2022-03-15 15:29:20,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11022 to 5231. [2022-03-15 15:29:20,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 4.724091778202677) internal successors, (24707), 5230 states have internal predecessors, (24707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:20,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 24707 transitions. [2022-03-15 15:29:20,960 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 24707 transitions. Word has length 29 [2022-03-15 15:29:20,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:20,960 INFO L470 AbstractCegarLoop]: Abstraction has 5231 states and 24707 transitions. [2022-03-15 15:29:20,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:20,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 24707 transitions. [2022-03-15 15:29:20,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:20,971 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:20,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:20,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-03-15 15:29:20,971 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:20,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:20,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1676745311, now seen corresponding path program 354 times [2022-03-15 15:29:20,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:20,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775868444] [2022-03-15 15:29:20,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:20,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:21,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:21,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:21,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775868444] [2022-03-15 15:29:21,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775868444] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:21,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:21,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:21,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204410137] [2022-03-15 15:29:21,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:21,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:21,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:21,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:21,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:21,099 INFO L87 Difference]: Start difference. First operand 5231 states and 24707 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:21,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:21,279 INFO L93 Difference]: Finished difference Result 11493 states and 51241 transitions. [2022-03-15 15:29:21,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:21,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:21,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:21,316 INFO L225 Difference]: With dead ends: 11493 [2022-03-15 15:29:21,316 INFO L226 Difference]: Without dead ends: 10934 [2022-03-15 15:29:21,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:21,317 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:21,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 212 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:21,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2022-03-15 15:29:21,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 5143. [2022-03-15 15:29:21,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.742707117852976) internal successors, (24387), 5142 states have internal predecessors, (24387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:21,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24387 transitions. [2022-03-15 15:29:21,488 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24387 transitions. Word has length 29 [2022-03-15 15:29:21,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:21,488 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24387 transitions. [2022-03-15 15:29:21,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:21,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24387 transitions. [2022-03-15 15:29:21,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:21,499 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:21,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:21,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-03-15 15:29:21,500 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:21,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:21,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1578671715, now seen corresponding path program 355 times [2022-03-15 15:29:21,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:21,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079019577] [2022-03-15 15:29:21,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:21,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:21,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:21,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:21,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079019577] [2022-03-15 15:29:21,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079019577] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:21,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:21,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:21,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533915406] [2022-03-15 15:29:21,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:21,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:21,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:21,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:21,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:21,677 INFO L87 Difference]: Start difference. First operand 5143 states and 24387 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:21,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:21,882 INFO L93 Difference]: Finished difference Result 11360 states and 50757 transitions. [2022-03-15 15:29:21,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:21,882 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:21,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:21,918 INFO L225 Difference]: With dead ends: 11360 [2022-03-15 15:29:21,918 INFO L226 Difference]: Without dead ends: 10883 [2022-03-15 15:29:21,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:21,918 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 176 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:21,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 191 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:21,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2022-03-15 15:29:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 5215. [2022-03-15 15:29:22,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.734752589182969) internal successors, (24687), 5214 states have internal predecessors, (24687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:22,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24687 transitions. [2022-03-15 15:29:22,081 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24687 transitions. Word has length 29 [2022-03-15 15:29:22,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:22,081 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24687 transitions. [2022-03-15 15:29:22,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:22,081 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24687 transitions. [2022-03-15 15:29:22,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:22,091 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:22,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:22,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-03-15 15:29:22,092 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:22,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:22,092 INFO L85 PathProgramCache]: Analyzing trace with hash 731874753, now seen corresponding path program 356 times [2022-03-15 15:29:22,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:22,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796518517] [2022-03-15 15:29:22,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:22,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:22,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:22,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:22,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796518517] [2022-03-15 15:29:22,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796518517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:22,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:22,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:22,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826400017] [2022-03-15 15:29:22,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:22,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:22,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:22,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:22,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:22,242 INFO L87 Difference]: Start difference. First operand 5215 states and 24687 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:22,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:22,448 INFO L93 Difference]: Finished difference Result 11298 states and 50440 transitions. [2022-03-15 15:29:22,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:22,448 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:22,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:22,484 INFO L225 Difference]: With dead ends: 11298 [2022-03-15 15:29:22,485 INFO L226 Difference]: Without dead ends: 10835 [2022-03-15 15:29:22,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:22,485 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 163 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:22,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 211 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:22,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10835 states. [2022-03-15 15:29:22,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10835 to 5167. [2022-03-15 15:29:22,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.740030971738289) internal successors, (24487), 5166 states have internal predecessors, (24487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:22,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24487 transitions. [2022-03-15 15:29:22,648 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24487 transitions. Word has length 29 [2022-03-15 15:29:22,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:22,648 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24487 transitions. [2022-03-15 15:29:22,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:22,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24487 transitions. [2022-03-15 15:29:22,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:22,659 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:22,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:22,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-03-15 15:29:22,659 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:22,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:22,659 INFO L85 PathProgramCache]: Analyzing trace with hash -454340927, now seen corresponding path program 357 times [2022-03-15 15:29:22,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:22,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102086123] [2022-03-15 15:29:22,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:22,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:22,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:22,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102086123] [2022-03-15 15:29:22,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102086123] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:22,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:22,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:22,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58016137] [2022-03-15 15:29:22,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:22,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:22,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:22,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:22,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:22,853 INFO L87 Difference]: Start difference. First operand 5167 states and 24487 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:23,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:23,063 INFO L93 Difference]: Finished difference Result 11444 states and 51125 transitions. [2022-03-15 15:29:23,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:23,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:23,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:23,100 INFO L225 Difference]: With dead ends: 11444 [2022-03-15 15:29:23,100 INFO L226 Difference]: Without dead ends: 10967 [2022-03-15 15:29:23,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:23,101 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 150 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:23,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 252 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:23,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10967 states. [2022-03-15 15:29:23,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10967 to 5243. [2022-03-15 15:29:23,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.726249523082793) internal successors, (24775), 5242 states have internal predecessors, (24775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:23,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24775 transitions. [2022-03-15 15:29:23,275 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24775 transitions. Word has length 29 [2022-03-15 15:29:23,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:23,275 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 24775 transitions. [2022-03-15 15:29:23,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:23,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24775 transitions. [2022-03-15 15:29:23,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:23,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:23,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:23,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-03-15 15:29:23,286 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:23,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:23,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1082259137, now seen corresponding path program 358 times [2022-03-15 15:29:23,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:23,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581377541] [2022-03-15 15:29:23,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:23,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:23,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:23,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:23,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581377541] [2022-03-15 15:29:23,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581377541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:23,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:23,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:23,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187578538] [2022-03-15 15:29:23,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:23,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:23,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:23,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:23,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:23,408 INFO L87 Difference]: Start difference. First operand 5243 states and 24775 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:23,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:23,612 INFO L93 Difference]: Finished difference Result 11438 states and 51032 transitions. [2022-03-15 15:29:23,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:23,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:23,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:23,648 INFO L225 Difference]: With dead ends: 11438 [2022-03-15 15:29:23,649 INFO L226 Difference]: Without dead ends: 10891 [2022-03-15 15:29:23,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:23,649 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 154 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:23,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 207 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:23,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2022-03-15 15:29:23,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 5167. [2022-03-15 15:29:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.735385210994967) internal successors, (24463), 5166 states have internal predecessors, (24463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:23,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24463 transitions. [2022-03-15 15:29:23,833 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24463 transitions. Word has length 29 [2022-03-15 15:29:23,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:23,833 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24463 transitions. [2022-03-15 15:29:23,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:23,833 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24463 transitions. [2022-03-15 15:29:23,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:23,844 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:23,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:23,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-03-15 15:29:23,845 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:23,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:23,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1311088993, now seen corresponding path program 359 times [2022-03-15 15:29:23,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:23,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890455411] [2022-03-15 15:29:23,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:23,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:24,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:24,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890455411] [2022-03-15 15:29:24,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890455411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:24,022 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:24,022 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:24,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860313811] [2022-03-15 15:29:24,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:24,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:24,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:24,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:24,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:24,023 INFO L87 Difference]: Start difference. First operand 5167 states and 24463 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:24,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:24,242 INFO L93 Difference]: Finished difference Result 11292 states and 50423 transitions. [2022-03-15 15:29:24,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:24,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:24,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:24,278 INFO L225 Difference]: With dead ends: 11292 [2022-03-15 15:29:24,278 INFO L226 Difference]: Without dead ends: 10877 [2022-03-15 15:29:24,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:24,278 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:24,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 223 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:24,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10877 states. [2022-03-15 15:29:24,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10877 to 5215. [2022-03-15 15:29:24,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.725546605293441) internal successors, (24639), 5214 states have internal predecessors, (24639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:24,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24639 transitions. [2022-03-15 15:29:24,434 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24639 transitions. Word has length 29 [2022-03-15 15:29:24,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:24,434 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24639 transitions. [2022-03-15 15:29:24,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:24,435 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24639 transitions. [2022-03-15 15:29:24,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:24,445 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:24,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:24,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-03-15 15:29:24,446 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:24,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:24,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1809918593, now seen corresponding path program 360 times [2022-03-15 15:29:24,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:24,446 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013951025] [2022-03-15 15:29:24,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:24,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:24,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:24,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013951025] [2022-03-15 15:29:24,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013951025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:24,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:24,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:24,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247787275] [2022-03-15 15:29:24,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:24,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:24,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:24,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:24,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:24,558 INFO L87 Difference]: Start difference. First operand 5215 states and 24639 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:24,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:24,792 INFO L93 Difference]: Finished difference Result 11348 states and 50627 transitions. [2022-03-15 15:29:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:24,793 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:24,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:24,833 INFO L225 Difference]: With dead ends: 11348 [2022-03-15 15:29:24,833 INFO L226 Difference]: Without dead ends: 10765 [2022-03-15 15:29:24,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:24,834 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 142 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:24,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 234 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:24,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10765 states. [2022-03-15 15:29:24,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10765 to 5103. [2022-03-15 15:29:25,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5102 states have (on average 4.758330066640533) internal successors, (24277), 5102 states have internal predecessors, (24277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:25,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 24277 transitions. [2022-03-15 15:29:25,026 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 24277 transitions. Word has length 29 [2022-03-15 15:29:25,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:25,026 INFO L470 AbstractCegarLoop]: Abstraction has 5103 states and 24277 transitions. [2022-03-15 15:29:25,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:25,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 24277 transitions. [2022-03-15 15:29:25,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:25,039 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:25,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:25,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-03-15 15:29:25,040 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:25,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:25,040 INFO L85 PathProgramCache]: Analyzing trace with hash 32520871, now seen corresponding path program 361 times [2022-03-15 15:29:25,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:25,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713083120] [2022-03-15 15:29:25,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:25,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:25,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:25,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:25,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713083120] [2022-03-15 15:29:25,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713083120] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:25,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:25,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:25,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768017059] [2022-03-15 15:29:25,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:25,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:25,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:25,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:25,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:25,160 INFO L87 Difference]: Start difference. First operand 5103 states and 24277 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:25,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:25,344 INFO L93 Difference]: Finished difference Result 11084 states and 49581 transitions. [2022-03-15 15:29:25,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:25,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:25,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:25,378 INFO L225 Difference]: With dead ends: 11084 [2022-03-15 15:29:25,378 INFO L226 Difference]: Without dead ends: 10669 [2022-03-15 15:29:25,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:25,379 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 155 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:25,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 242 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:25,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10669 states. [2022-03-15 15:29:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10669 to 5239. [2022-03-15 15:29:25,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.752386407025583) internal successors, (24893), 5238 states have internal predecessors, (24893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:25,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24893 transitions. [2022-03-15 15:29:25,534 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24893 transitions. Word has length 29 [2022-03-15 15:29:25,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:25,534 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 24893 transitions. [2022-03-15 15:29:25,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:25,534 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24893 transitions. [2022-03-15 15:29:25,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:25,544 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:25,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:25,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-03-15 15:29:25,544 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:25,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:25,545 INFO L85 PathProgramCache]: Analyzing trace with hash -952683159, now seen corresponding path program 362 times [2022-03-15 15:29:25,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:25,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182750289] [2022-03-15 15:29:25,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:25,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:25,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:25,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:25,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182750289] [2022-03-15 15:29:25,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182750289] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:25,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:25,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:25,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498053141] [2022-03-15 15:29:25,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:25,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:25,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:25,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:25,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:25,658 INFO L87 Difference]: Start difference. First operand 5239 states and 24893 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:25,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:25,835 INFO L93 Difference]: Finished difference Result 11211 states and 50060 transitions. [2022-03-15 15:29:25,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:25,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:25,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:25,871 INFO L225 Difference]: With dead ends: 11211 [2022-03-15 15:29:25,871 INFO L226 Difference]: Without dead ends: 10589 [2022-03-15 15:29:25,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:25,871 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 167 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:25,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 222 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:25,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10589 states. [2022-03-15 15:29:26,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10589 to 5159. [2022-03-15 15:29:26,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 4.757851880573866) internal successors, (24541), 5158 states have internal predecessors, (24541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:26,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 24541 transitions. [2022-03-15 15:29:26,044 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 24541 transitions. Word has length 29 [2022-03-15 15:29:26,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:26,045 INFO L470 AbstractCegarLoop]: Abstraction has 5159 states and 24541 transitions. [2022-03-15 15:29:26,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:26,045 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 24541 transitions. [2022-03-15 15:29:26,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:26,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:26,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:26,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-03-15 15:29:26,056 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:26,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:26,056 INFO L85 PathProgramCache]: Analyzing trace with hash 117308869, now seen corresponding path program 363 times [2022-03-15 15:29:26,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:26,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948021548] [2022-03-15 15:29:26,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:26,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:26,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:26,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:26,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948021548] [2022-03-15 15:29:26,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948021548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:26,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:26,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:26,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629848960] [2022-03-15 15:29:26,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:26,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:26,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:26,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:26,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:26,170 INFO L87 Difference]: Start difference. First operand 5159 states and 24541 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:26,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:26,336 INFO L93 Difference]: Finished difference Result 10909 states and 48798 transitions. [2022-03-15 15:29:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:26,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:26,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:26,367 INFO L225 Difference]: With dead ends: 10909 [2022-03-15 15:29:26,367 INFO L226 Difference]: Without dead ends: 10494 [2022-03-15 15:29:26,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:26,367 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 169 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:26,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 210 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10494 states. [2022-03-15 15:29:26,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10494 to 5191. [2022-03-15 15:29:26,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.75009633911368) internal successors, (24653), 5190 states have internal predecessors, (24653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:26,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24653 transitions. [2022-03-15 15:29:26,517 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24653 transitions. Word has length 29 [2022-03-15 15:29:26,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:26,517 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24653 transitions. [2022-03-15 15:29:26,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:26,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24653 transitions. [2022-03-15 15:29:26,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:26,527 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:26,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:26,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-03-15 15:29:26,527 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:26,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:26,527 INFO L85 PathProgramCache]: Analyzing trace with hash 784774783, now seen corresponding path program 364 times [2022-03-15 15:29:26,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:26,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329626990] [2022-03-15 15:29:26,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:26,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:26,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:26,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:26,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329626990] [2022-03-15 15:29:26,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329626990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:26,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:26,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:26,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252670004] [2022-03-15 15:29:26,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:26,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:26,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:26,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:26,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:26,641 INFO L87 Difference]: Start difference. First operand 5191 states and 24653 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:26,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:26,805 INFO L93 Difference]: Finished difference Result 10909 states and 48766 transitions. [2022-03-15 15:29:26,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:26,806 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:26,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:26,840 INFO L225 Difference]: With dead ends: 10909 [2022-03-15 15:29:26,840 INFO L226 Difference]: Without dead ends: 10462 [2022-03-15 15:29:26,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:26,841 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 155 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:26,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 215 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:26,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10462 states. [2022-03-15 15:29:26,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10462 to 5159. [2022-03-15 15:29:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 4.754749903063203) internal successors, (24525), 5158 states have internal predecessors, (24525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:27,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 24525 transitions. [2022-03-15 15:29:27,002 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 24525 transitions. Word has length 29 [2022-03-15 15:29:27,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:27,002 INFO L470 AbstractCegarLoop]: Abstraction has 5159 states and 24525 transitions. [2022-03-15 15:29:27,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:27,002 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 24525 transitions. [2022-03-15 15:29:27,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:27,012 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:27,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:27,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-03-15 15:29:27,012 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:27,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:27,012 INFO L85 PathProgramCache]: Analyzing trace with hash -99311073, now seen corresponding path program 365 times [2022-03-15 15:29:27,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:27,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22981631] [2022-03-15 15:29:27,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:27,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:27,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:27,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:27,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22981631] [2022-03-15 15:29:27,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22981631] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:27,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:27,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:27,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122567231] [2022-03-15 15:29:27,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:27,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:27,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:27,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:27,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:27,137 INFO L87 Difference]: Start difference. First operand 5159 states and 24525 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:27,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:27,328 INFO L93 Difference]: Finished difference Result 11211 states and 50060 transitions. [2022-03-15 15:29:27,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:27,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:27,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:27,361 INFO L225 Difference]: With dead ends: 11211 [2022-03-15 15:29:27,362 INFO L226 Difference]: Without dead ends: 10669 [2022-03-15 15:29:27,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:27,362 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 143 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:27,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 253 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:27,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10669 states. [2022-03-15 15:29:27,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10669 to 5239. [2022-03-15 15:29:27,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.737113402061856) internal successors, (24813), 5238 states have internal predecessors, (24813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:27,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24813 transitions. [2022-03-15 15:29:27,524 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24813 transitions. Word has length 29 [2022-03-15 15:29:27,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:27,524 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 24813 transitions. [2022-03-15 15:29:27,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:27,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24813 transitions. [2022-03-15 15:29:27,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:27,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:27,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:27,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-03-15 15:29:27,535 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:27,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:27,535 INFO L85 PathProgramCache]: Analyzing trace with hash -306119039, now seen corresponding path program 366 times [2022-03-15 15:29:27,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:27,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501046636] [2022-03-15 15:29:27,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:27,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:27,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:27,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501046636] [2022-03-15 15:29:27,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501046636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:27,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:27,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:27,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095465185] [2022-03-15 15:29:27,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:27,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:27,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:27,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:27,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:27,660 INFO L87 Difference]: Start difference. First operand 5239 states and 24813 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:27,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:27,853 INFO L93 Difference]: Finished difference Result 11084 states and 49453 transitions. [2022-03-15 15:29:27,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:27,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:27,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:27,887 INFO L225 Difference]: With dead ends: 11084 [2022-03-15 15:29:27,887 INFO L226 Difference]: Without dead ends: 10557 [2022-03-15 15:29:27,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:27,887 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:27,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 221 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:27,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-03-15 15:29:28,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 5127. [2022-03-15 15:29:28,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.759461568474444) internal successors, (24397), 5126 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:28,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24397 transitions. [2022-03-15 15:29:28,034 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24397 transitions. Word has length 29 [2022-03-15 15:29:28,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:28,034 INFO L470 AbstractCegarLoop]: Abstraction has 5127 states and 24397 transitions. [2022-03-15 15:29:28,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:28,034 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24397 transitions. [2022-03-15 15:29:28,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:28,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:28,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:28,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-03-15 15:29:28,044 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:28,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:28,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1490567941, now seen corresponding path program 367 times [2022-03-15 15:29:28,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:28,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589403718] [2022-03-15 15:29:28,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:28,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:28,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:28,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589403718] [2022-03-15 15:29:28,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589403718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:28,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:28,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:28,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598005610] [2022-03-15 15:29:28,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:28,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:28,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:28,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:28,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:28,162 INFO L87 Difference]: Start difference. First operand 5127 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:28,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:28,364 INFO L93 Difference]: Finished difference Result 11198 states and 50100 transitions. [2022-03-15 15:29:28,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:28,365 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:28,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:28,400 INFO L225 Difference]: With dead ends: 11198 [2022-03-15 15:29:28,400 INFO L226 Difference]: Without dead ends: 10783 [2022-03-15 15:29:28,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:28,400 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 186 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:28,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 192 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:28,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10783 states. [2022-03-15 15:29:28,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10783 to 5247. [2022-03-15 15:29:28,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.750476553564621) internal successors, (24921), 5246 states have internal predecessors, (24921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24921 transitions. [2022-03-15 15:29:28,562 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24921 transitions. Word has length 29 [2022-03-15 15:29:28,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:28,563 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 24921 transitions. [2022-03-15 15:29:28,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:28,563 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24921 transitions. [2022-03-15 15:29:28,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:28,574 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:28,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:28,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-03-15 15:29:28,574 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:28,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:28,574 INFO L85 PathProgramCache]: Analyzing trace with hash 505363911, now seen corresponding path program 368 times [2022-03-15 15:29:28,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:28,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066103895] [2022-03-15 15:29:28,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:28,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:28,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:28,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:28,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066103895] [2022-03-15 15:29:28,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066103895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:28,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:28,764 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:28,764 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643792283] [2022-03-15 15:29:28,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:28,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:28,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:28,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:28,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:28,765 INFO L87 Difference]: Start difference. First operand 5247 states and 24921 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:28,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:28,942 INFO L93 Difference]: Finished difference Result 11325 states and 50579 transitions. [2022-03-15 15:29:28,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:28,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:28,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:28,977 INFO L225 Difference]: With dead ends: 11325 [2022-03-15 15:29:28,977 INFO L226 Difference]: Without dead ends: 10703 [2022-03-15 15:29:28,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:28,978 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:28,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 205 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:28,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10703 states. [2022-03-15 15:29:29,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10703 to 5167. [2022-03-15 15:29:29,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.7543554006968645) internal successors, (24561), 5166 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:29,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24561 transitions. [2022-03-15 15:29:29,147 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24561 transitions. Word has length 29 [2022-03-15 15:29:29,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:29,147 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24561 transitions. [2022-03-15 15:29:29,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:29,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24561 transitions. [2022-03-15 15:29:29,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:29,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:29,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:29,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-03-15 15:29:29,158 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:29,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:29,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1158424133, now seen corresponding path program 369 times [2022-03-15 15:29:29,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:29,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309123771] [2022-03-15 15:29:29,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:29,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:29,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:29,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:29,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309123771] [2022-03-15 15:29:29,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309123771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:29,286 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:29,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:29,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949762826] [2022-03-15 15:29:29,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:29,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:29,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:29,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:29,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:29,286 INFO L87 Difference]: Start difference. First operand 5167 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:29,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:29,449 INFO L93 Difference]: Finished difference Result 11099 states and 49653 transitions. [2022-03-15 15:29:29,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:29,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:29,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:29,480 INFO L225 Difference]: With dead ends: 11099 [2022-03-15 15:29:29,480 INFO L226 Difference]: Without dead ends: 10684 [2022-03-15 15:29:29,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:29,480 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 165 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:29,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 209 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:29,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2022-03-15 15:29:29,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 5215. [2022-03-15 15:29:29,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.744342155734561) internal successors, (24737), 5214 states have internal predecessors, (24737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:29,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24737 transitions. [2022-03-15 15:29:29,626 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24737 transitions. Word has length 29 [2022-03-15 15:29:29,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:29,626 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24737 transitions. [2022-03-15 15:29:29,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:29,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24737 transitions. [2022-03-15 15:29:29,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:29,637 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:29,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:29,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-03-15 15:29:29,637 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:29,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:29,637 INFO L85 PathProgramCache]: Analyzing trace with hash 156367271, now seen corresponding path program 370 times [2022-03-15 15:29:29,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:29,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305360734] [2022-03-15 15:29:29,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:29,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:29,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:29,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:29,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305360734] [2022-03-15 15:29:29,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305360734] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:29,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:29,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:29,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581298205] [2022-03-15 15:29:29,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:29,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:29,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:29,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:29,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:29,756 INFO L87 Difference]: Start difference. First operand 5215 states and 24737 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:29,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:29,921 INFO L93 Difference]: Finished difference Result 11159 states and 49869 transitions. [2022-03-15 15:29:29,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:29,921 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:29,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:29,956 INFO L225 Difference]: With dead ends: 11159 [2022-03-15 15:29:29,956 INFO L226 Difference]: Without dead ends: 10636 [2022-03-15 15:29:29,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:29,957 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 149 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:29,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 226 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:29,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10636 states. [2022-03-15 15:29:30,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10636 to 5167. [2022-03-15 15:29:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.749709639953543) internal successors, (24537), 5166 states have internal predecessors, (24537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24537 transitions. [2022-03-15 15:29:30,115 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24537 transitions. Word has length 29 [2022-03-15 15:29:30,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:30,115 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24537 transitions. [2022-03-15 15:29:30,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:30,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24537 transitions. [2022-03-15 15:29:30,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:30,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:30,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:30,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-03-15 15:29:30,126 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:30,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:30,126 INFO L85 PathProgramCache]: Analyzing trace with hash 546470889, now seen corresponding path program 371 times [2022-03-15 15:29:30,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:30,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797988100] [2022-03-15 15:29:30,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:30,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:30,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:30,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:30,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797988100] [2022-03-15 15:29:30,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797988100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:30,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:30,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:30,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757217134] [2022-03-15 15:29:30,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:30,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:30,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:30,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:30,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:30,273 INFO L87 Difference]: Start difference. First operand 5167 states and 24537 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:30,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:30,446 INFO L93 Difference]: Finished difference Result 11415 states and 50974 transitions. [2022-03-15 15:29:30,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:30,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:30,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:30,478 INFO L225 Difference]: With dead ends: 11415 [2022-03-15 15:29:30,478 INFO L226 Difference]: Without dead ends: 10873 [2022-03-15 15:29:30,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:30,478 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 167 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:30,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 207 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:30,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10873 states. [2022-03-15 15:29:30,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10873 to 5277. [2022-03-15 15:29:30,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 4.727445034116755) internal successors, (24942), 5276 states have internal predecessors, (24942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:30,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 24942 transitions. [2022-03-15 15:29:30,697 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 24942 transitions. Word has length 29 [2022-03-15 15:29:30,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:30,697 INFO L470 AbstractCegarLoop]: Abstraction has 5277 states and 24942 transitions. [2022-03-15 15:29:30,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:30,697 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 24942 transitions. [2022-03-15 15:29:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:30,707 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:30,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:30,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-03-15 15:29:30,707 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:30,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:30,708 INFO L85 PathProgramCache]: Analyzing trace with hash -194481209, now seen corresponding path program 372 times [2022-03-15 15:29:30,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:30,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138892558] [2022-03-15 15:29:30,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:30,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:30,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:30,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138892558] [2022-03-15 15:29:30,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138892558] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:30,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:30,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:30,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167905588] [2022-03-15 15:29:30,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:30,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:30,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:30,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:30,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:30,859 INFO L87 Difference]: Start difference. First operand 5277 states and 24942 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:31,051 INFO L93 Difference]: Finished difference Result 11348 states and 50601 transitions. [2022-03-15 15:29:31,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:31,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:31,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:31,083 INFO L225 Difference]: With dead ends: 11348 [2022-03-15 15:29:31,083 INFO L226 Difference]: Without dead ends: 10723 [2022-03-15 15:29:31,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:31,083 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 174 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:31,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 197 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:31,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2022-03-15 15:29:31,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 5127. [2022-03-15 15:29:31,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.756340226297308) internal successors, (24381), 5126 states have internal predecessors, (24381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:31,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24381 transitions. [2022-03-15 15:29:31,223 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24381 transitions. Word has length 29 [2022-03-15 15:29:31,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:31,223 INFO L470 AbstractCegarLoop]: Abstraction has 5127 states and 24381 transitions. [2022-03-15 15:29:31,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:31,223 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24381 transitions. [2022-03-15 15:29:31,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:31,233 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:31,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:31,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-03-15 15:29:31,233 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:31,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:31,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1297315357, now seen corresponding path program 373 times [2022-03-15 15:29:31,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:31,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942902997] [2022-03-15 15:29:31,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:31,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:31,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:31,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:31,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942902997] [2022-03-15 15:29:31,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942902997] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:31,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:31,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:31,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938489317] [2022-03-15 15:29:31,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:31,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:31,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:31,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:31,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:31,375 INFO L87 Difference]: Start difference. First operand 5127 states and 24381 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:31,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:31,571 INFO L93 Difference]: Finished difference Result 10762 states and 48167 transitions. [2022-03-15 15:29:31,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:31,572 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:31,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:31,603 INFO L225 Difference]: With dead ends: 10762 [2022-03-15 15:29:31,603 INFO L226 Difference]: Without dead ends: 10347 [2022-03-15 15:29:31,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:31,604 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 162 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:31,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 234 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:31,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10347 states. [2022-03-15 15:29:31,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10347 to 5175. [2022-03-15 15:29:31,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.749323540780828) internal successors, (24573), 5174 states have internal predecessors, (24573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24573 transitions. [2022-03-15 15:29:31,738 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24573 transitions. Word has length 29 [2022-03-15 15:29:31,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:31,738 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24573 transitions. [2022-03-15 15:29:31,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24573 transitions. [2022-03-15 15:29:31,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:31,748 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:31,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:31,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-03-15 15:29:31,748 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:31,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:31,749 INFO L85 PathProgramCache]: Analyzing trace with hash -629849443, now seen corresponding path program 374 times [2022-03-15 15:29:31,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:31,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646483270] [2022-03-15 15:29:31,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:31,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:31,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:31,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646483270] [2022-03-15 15:29:31,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646483270] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:31,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:31,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:31,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465018116] [2022-03-15 15:29:31,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:31,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:31,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:31,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:31,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:31,907 INFO L87 Difference]: Start difference. First operand 5175 states and 24573 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:32,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:32,119 INFO L93 Difference]: Finished difference Result 10762 states and 48135 transitions. [2022-03-15 15:29:32,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:32,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:32,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:32,153 INFO L225 Difference]: With dead ends: 10762 [2022-03-15 15:29:32,153 INFO L226 Difference]: Without dead ends: 10315 [2022-03-15 15:29:32,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:32,153 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 171 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:32,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 208 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:32,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10315 states. [2022-03-15 15:29:32,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10315 to 5143. [2022-03-15 15:29:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.753986775573707) internal successors, (24445), 5142 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:32,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24445 transitions. [2022-03-15 15:29:32,311 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24445 transitions. Word has length 29 [2022-03-15 15:29:32,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:32,311 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24445 transitions. [2022-03-15 15:29:32,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:32,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24445 transitions. [2022-03-15 15:29:32,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:32,321 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:32,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:32,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-03-15 15:29:32,321 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:32,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:32,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1778217403, now seen corresponding path program 375 times [2022-03-15 15:29:32,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:32,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179730141] [2022-03-15 15:29:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:32,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:32,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:32,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:32,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179730141] [2022-03-15 15:29:32,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179730141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:32,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:32,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:32,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993088031] [2022-03-15 15:29:32,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:32,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:32,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:32,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:32,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:32,474 INFO L87 Difference]: Start difference. First operand 5143 states and 24445 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:32,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:32,681 INFO L93 Difference]: Finished difference Result 10838 states and 48495 transitions. [2022-03-15 15:29:32,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:32,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:32,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:32,715 INFO L225 Difference]: With dead ends: 10838 [2022-03-15 15:29:32,715 INFO L226 Difference]: Without dead ends: 10423 [2022-03-15 15:29:32,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:32,715 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 157 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:32,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 223 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:32,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2022-03-15 15:29:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5191. [2022-03-15 15:29:32,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.74393063583815) internal successors, (24621), 5190 states have internal predecessors, (24621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:32,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24621 transitions. [2022-03-15 15:29:32,861 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24621 transitions. Word has length 29 [2022-03-15 15:29:32,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:32,861 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24621 transitions. [2022-03-15 15:29:32,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:32,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24621 transitions. [2022-03-15 15:29:32,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:32,872 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:32,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:32,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-03-15 15:29:32,872 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:32,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:32,872 INFO L85 PathProgramCache]: Analyzing trace with hash 33254725, now seen corresponding path program 376 times [2022-03-15 15:29:32,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:32,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985140882] [2022-03-15 15:29:32,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:32,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:33,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:33,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985140882] [2022-03-15 15:29:33,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985140882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:33,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:33,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:33,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979952787] [2022-03-15 15:29:33,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:33,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:33,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:33,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:33,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:33,043 INFO L87 Difference]: Start difference. First operand 5191 states and 24621 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:33,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:33,248 INFO L93 Difference]: Finished difference Result 10898 states and 48711 transitions. [2022-03-15 15:29:33,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:33,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:33,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:33,283 INFO L225 Difference]: With dead ends: 10898 [2022-03-15 15:29:33,283 INFO L226 Difference]: Without dead ends: 10375 [2022-03-15 15:29:33,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:33,283 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 169 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:33,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 197 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:33,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10375 states. [2022-03-15 15:29:33,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10375 to 5143. [2022-03-15 15:29:33,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.750875145857643) internal successors, (24429), 5142 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:33,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24429 transitions. [2022-03-15 15:29:33,441 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24429 transitions. Word has length 29 [2022-03-15 15:29:33,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:33,441 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24429 transitions. [2022-03-15 15:29:33,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:33,441 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24429 transitions. [2022-03-15 15:29:33,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:33,452 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:33,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:33,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-03-15 15:29:33,452 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:33,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:33,452 INFO L85 PathProgramCache]: Analyzing trace with hash -760545507, now seen corresponding path program 377 times [2022-03-15 15:29:33,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:33,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458607950] [2022-03-15 15:29:33,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:33,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:33,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:33,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:33,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458607950] [2022-03-15 15:29:33,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458607950] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:33,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:33,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:33,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006163420] [2022-03-15 15:29:33,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:33,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:33,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:33,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:33,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:33,597 INFO L87 Difference]: Start difference. First operand 5143 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:33,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:33,820 INFO L93 Difference]: Finished difference Result 10838 states and 48479 transitions. [2022-03-15 15:29:33,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:33,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:33,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:33,854 INFO L225 Difference]: With dead ends: 10838 [2022-03-15 15:29:33,854 INFO L226 Difference]: Without dead ends: 10423 [2022-03-15 15:29:33,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:33,854 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 161 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:33,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 223 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:33,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2022-03-15 15:29:33,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5191. [2022-03-15 15:29:33,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.740847784200385) internal successors, (24605), 5190 states have internal predecessors, (24605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:34,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24605 transitions. [2022-03-15 15:29:34,015 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24605 transitions. Word has length 29 [2022-03-15 15:29:34,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:34,015 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24605 transitions. [2022-03-15 15:29:34,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:34,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24605 transitions. [2022-03-15 15:29:34,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:34,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:34,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:34,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-03-15 15:29:34,028 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:34,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:34,031 INFO L85 PathProgramCache]: Analyzing trace with hash 320517119, now seen corresponding path program 378 times [2022-03-15 15:29:34,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:34,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518927810] [2022-03-15 15:29:34,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:34,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:34,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:34,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:34,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518927810] [2022-03-15 15:29:34,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518927810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:34,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:34,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:34,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607384172] [2022-03-15 15:29:34,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:34,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:34,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:34,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:34,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:34,198 INFO L87 Difference]: Start difference. First operand 5191 states and 24605 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:34,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:34,386 INFO L93 Difference]: Finished difference Result 10898 states and 48695 transitions. [2022-03-15 15:29:34,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:34,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:34,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:34,419 INFO L225 Difference]: With dead ends: 10898 [2022-03-15 15:29:34,420 INFO L226 Difference]: Without dead ends: 10359 [2022-03-15 15:29:34,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:34,420 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:34,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 207 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:34,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10359 states. [2022-03-15 15:29:34,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10359 to 5127. [2022-03-15 15:29:34,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.7547795552087395) internal successors, (24373), 5126 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:34,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24373 transitions. [2022-03-15 15:29:34,576 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24373 transitions. Word has length 29 [2022-03-15 15:29:34,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:34,576 INFO L470 AbstractCegarLoop]: Abstraction has 5127 states and 24373 transitions. [2022-03-15 15:29:34,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:34,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24373 transitions. [2022-03-15 15:29:34,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:34,587 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:34,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:34,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-03-15 15:29:34,587 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:34,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:34,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1454228675, now seen corresponding path program 379 times [2022-03-15 15:29:34,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:34,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697539262] [2022-03-15 15:29:34,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:34,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:34,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:34,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697539262] [2022-03-15 15:29:34,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697539262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:34,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:34,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:34,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457146018] [2022-03-15 15:29:34,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:34,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:34,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:34,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:34,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:34,780 INFO L87 Difference]: Start difference. First operand 5127 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:34,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:34,986 INFO L93 Difference]: Finished difference Result 11325 states and 50603 transitions. [2022-03-15 15:29:34,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:34,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:34,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:35,023 INFO L225 Difference]: With dead ends: 11325 [2022-03-15 15:29:35,023 INFO L226 Difference]: Without dead ends: 10783 [2022-03-15 15:29:35,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:35,025 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 176 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:35,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 209 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:35,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10783 states. [2022-03-15 15:29:35,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10783 to 5247. [2022-03-15 15:29:35,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.739801753717118) internal successors, (24865), 5246 states have internal predecessors, (24865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24865 transitions. [2022-03-15 15:29:35,195 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24865 transitions. Word has length 29 [2022-03-15 15:29:35,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:35,196 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 24865 transitions. [2022-03-15 15:29:35,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:35,196 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24865 transitions. [2022-03-15 15:29:35,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:35,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:35,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:35,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-03-15 15:29:35,206 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:35,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:35,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1661036641, now seen corresponding path program 380 times [2022-03-15 15:29:35,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:35,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719843258] [2022-03-15 15:29:35,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:35,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:35,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:35,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:35,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719843258] [2022-03-15 15:29:35,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719843258] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:35,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:35,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:35,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696513542] [2022-03-15 15:29:35,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:35,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:35,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:35,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:35,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:35,395 INFO L87 Difference]: Start difference. First operand 5247 states and 24865 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:35,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:35,560 INFO L93 Difference]: Finished difference Result 11198 states and 49996 transitions. [2022-03-15 15:29:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:35,560 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:35,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:35,594 INFO L225 Difference]: With dead ends: 11198 [2022-03-15 15:29:35,594 INFO L226 Difference]: Without dead ends: 10703 [2022-03-15 15:29:35,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:35,594 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 175 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:35,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 203 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:35,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10703 states. [2022-03-15 15:29:35,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10703 to 5167. [2022-03-15 15:29:35,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.749709639953543) internal successors, (24537), 5166 states have internal predecessors, (24537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:35,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24537 transitions. [2022-03-15 15:29:35,750 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24537 transitions. Word has length 29 [2022-03-15 15:29:35,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:35,751 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24537 transitions. [2022-03-15 15:29:35,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:35,751 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24537 transitions. [2022-03-15 15:29:35,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:35,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:35,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:35,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-03-15 15:29:35,761 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:35,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:35,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1935130721, now seen corresponding path program 381 times [2022-03-15 15:29:35,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:35,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901236027] [2022-03-15 15:29:35,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:35,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:35,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:35,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:35,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901236027] [2022-03-15 15:29:35,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901236027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:35,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:35,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:35,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310087853] [2022-03-15 15:29:35,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:35,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:35,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:35,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:35,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:35,930 INFO L87 Difference]: Start difference. First operand 5167 states and 24537 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:36,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:36,122 INFO L93 Difference]: Finished difference Result 11415 states and 50974 transitions. [2022-03-15 15:29:36,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:36,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:36,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:36,156 INFO L225 Difference]: With dead ends: 11415 [2022-03-15 15:29:36,156 INFO L226 Difference]: Without dead ends: 10873 [2022-03-15 15:29:36,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:36,156 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 161 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:36,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 221 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:36,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10873 states. [2022-03-15 15:29:36,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10873 to 5277. [2022-03-15 15:29:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 4.727445034116755) internal successors, (24942), 5276 states have internal predecessors, (24942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:36,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 24942 transitions. [2022-03-15 15:29:36,312 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 24942 transitions. Word has length 29 [2022-03-15 15:29:36,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:36,312 INFO L470 AbstractCegarLoop]: Abstraction has 5277 states and 24942 transitions. [2022-03-15 15:29:36,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:36,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 24942 transitions. [2022-03-15 15:29:36,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:36,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:36,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:36,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-03-15 15:29:36,323 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:36,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:36,323 INFO L85 PathProgramCache]: Analyzing trace with hash -616280289, now seen corresponding path program 382 times [2022-03-15 15:29:36,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:36,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300132499] [2022-03-15 15:29:36,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:36,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:36,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:36,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:36,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300132499] [2022-03-15 15:29:36,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300132499] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:36,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:36,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:36,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128269483] [2022-03-15 15:29:36,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:36,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:36,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:36,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:36,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:36,480 INFO L87 Difference]: Start difference. First operand 5277 states and 24942 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:36,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:36,705 INFO L93 Difference]: Finished difference Result 11348 states and 50601 transitions. [2022-03-15 15:29:36,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:36,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:36,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:36,741 INFO L225 Difference]: With dead ends: 11348 [2022-03-15 15:29:36,741 INFO L226 Difference]: Without dead ends: 10763 [2022-03-15 15:29:36,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:36,742 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 176 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:36,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 197 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:36,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10763 states. [2022-03-15 15:29:36,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10763 to 5167. [2022-03-15 15:29:36,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.74196670538134) internal successors, (24497), 5166 states have internal predecessors, (24497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:36,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24497 transitions. [2022-03-15 15:29:36,901 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24497 transitions. Word has length 29 [2022-03-15 15:29:36,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:36,901 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24497 transitions. [2022-03-15 15:29:36,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:36,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24497 transitions. [2022-03-15 15:29:36,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:36,912 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:36,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:36,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-03-15 15:29:36,912 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:36,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:36,912 INFO L85 PathProgramCache]: Analyzing trace with hash 766913281, now seen corresponding path program 383 times [2022-03-15 15:29:36,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:36,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348180837] [2022-03-15 15:29:36,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:36,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:37,093 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:37,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348180837] [2022-03-15 15:29:37,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348180837] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:37,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:37,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:37,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412732046] [2022-03-15 15:29:37,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:37,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:37,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:37,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:37,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:37,094 INFO L87 Difference]: Start difference. First operand 5167 states and 24497 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:37,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:37,294 INFO L93 Difference]: Finished difference Result 11099 states and 49589 transitions. [2022-03-15 15:29:37,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:37,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:37,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:37,325 INFO L225 Difference]: With dead ends: 11099 [2022-03-15 15:29:37,325 INFO L226 Difference]: Without dead ends: 10684 [2022-03-15 15:29:37,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:37,325 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 154 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:37,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 226 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:37,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2022-03-15 15:29:37,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 5215. [2022-03-15 15:29:37,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.732067510548523) internal successors, (24673), 5214 states have internal predecessors, (24673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:37,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24673 transitions. [2022-03-15 15:29:37,457 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24673 transitions. Word has length 29 [2022-03-15 15:29:37,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:37,458 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24673 transitions. [2022-03-15 15:29:37,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:37,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24673 transitions. [2022-03-15 15:29:37,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:37,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:37,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:37,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-03-15 15:29:37,467 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:37,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:37,467 INFO L85 PathProgramCache]: Analyzing trace with hash -79883681, now seen corresponding path program 384 times [2022-03-15 15:29:37,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:37,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605280918] [2022-03-15 15:29:37,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:37,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:37,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:37,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:37,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605280918] [2022-03-15 15:29:37,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605280918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:37,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:37,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:37,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735801537] [2022-03-15 15:29:37,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:37,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:37,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:37,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:37,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:37,658 INFO L87 Difference]: Start difference. First operand 5215 states and 24673 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:37,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:37,982 INFO L93 Difference]: Finished difference Result 11159 states and 49805 transitions. [2022-03-15 15:29:37,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:37,982 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:37,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:38,014 INFO L225 Difference]: With dead ends: 11159 [2022-03-15 15:29:38,014 INFO L226 Difference]: Without dead ends: 10580 [2022-03-15 15:29:38,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:38,014 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:38,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 219 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:38,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10580 states. [2022-03-15 15:29:38,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10580 to 5111. [2022-03-15 15:29:38,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5111 states, 5110 states have (on average 4.758708414872799) internal successors, (24317), 5110 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:38,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5111 states to 5111 states and 24317 transitions. [2022-03-15 15:29:38,140 INFO L78 Accepts]: Start accepts. Automaton has 5111 states and 24317 transitions. Word has length 29 [2022-03-15 15:29:38,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:38,140 INFO L470 AbstractCegarLoop]: Abstraction has 5111 states and 24317 transitions. [2022-03-15 15:29:38,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:38,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5111 states and 24317 transitions. [2022-03-15 15:29:38,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:38,149 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:38,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:38,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-03-15 15:29:38,149 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:38,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:38,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1056416645, now seen corresponding path program 385 times [2022-03-15 15:29:38,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:38,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549016356] [2022-03-15 15:29:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:38,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:38,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:38,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:38,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549016356] [2022-03-15 15:29:38,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549016356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:38,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:38,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:38,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297398163] [2022-03-15 15:29:38,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:38,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:38,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:38,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:38,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:38,318 INFO L87 Difference]: Start difference. First operand 5111 states and 24317 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:38,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:38,549 INFO L93 Difference]: Finished difference Result 11078 states and 49554 transitions. [2022-03-15 15:29:38,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:38,549 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:38,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:38,580 INFO L225 Difference]: With dead ends: 11078 [2022-03-15 15:29:38,580 INFO L226 Difference]: Without dead ends: 10663 [2022-03-15 15:29:38,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:38,580 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 151 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:38,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 250 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:38,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10663 states. [2022-03-15 15:29:38,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10663 to 5239. [2022-03-15 15:29:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.75085910652921) internal successors, (24885), 5238 states have internal predecessors, (24885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:38,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24885 transitions. [2022-03-15 15:29:38,717 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24885 transitions. Word has length 29 [2022-03-15 15:29:38,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:38,718 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 24885 transitions. [2022-03-15 15:29:38,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:38,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24885 transitions. [2022-03-15 15:29:38,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:38,727 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:38,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:38,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-03-15 15:29:38,728 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:38,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:38,728 INFO L85 PathProgramCache]: Analyzing trace with hash 71212615, now seen corresponding path program 386 times [2022-03-15 15:29:38,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:38,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318311252] [2022-03-15 15:29:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:38,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:38,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:38,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:38,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318311252] [2022-03-15 15:29:38,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318311252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:38,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:38,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:38,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747133342] [2022-03-15 15:29:38,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:38,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:38,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:38,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:38,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:38,897 INFO L87 Difference]: Start difference. First operand 5239 states and 24885 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:39,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:39,100 INFO L93 Difference]: Finished difference Result 11205 states and 50033 transitions. [2022-03-15 15:29:39,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:39,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:39,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:39,130 INFO L225 Difference]: With dead ends: 11205 [2022-03-15 15:29:39,131 INFO L226 Difference]: Without dead ends: 10583 [2022-03-15 15:29:39,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:39,131 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 156 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:39,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 234 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:39,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10583 states. [2022-03-15 15:29:39,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10583 to 5159. [2022-03-15 15:29:39,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 4.756300891818534) internal successors, (24533), 5158 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:39,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 24533 transitions. [2022-03-15 15:29:39,267 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 24533 transitions. Word has length 29 [2022-03-15 15:29:39,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:39,267 INFO L470 AbstractCegarLoop]: Abstraction has 5159 states and 24533 transitions. [2022-03-15 15:29:39,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:39,267 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 24533 transitions. [2022-03-15 15:29:39,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:39,278 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:39,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:39,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-03-15 15:29:39,279 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:39,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:39,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1141204643, now seen corresponding path program 387 times [2022-03-15 15:29:39,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:39,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572600020] [2022-03-15 15:29:39,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:39,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:39,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:39,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:39,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572600020] [2022-03-15 15:29:39,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572600020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:39,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:39,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:39,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122014163] [2022-03-15 15:29:39,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:39,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:39,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:39,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:39,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:39,449 INFO L87 Difference]: Start difference. First operand 5159 states and 24533 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:39,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:39,656 INFO L93 Difference]: Finished difference Result 10903 states and 48771 transitions. [2022-03-15 15:29:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:39,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:39,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:39,687 INFO L225 Difference]: With dead ends: 10903 [2022-03-15 15:29:39,687 INFO L226 Difference]: Without dead ends: 10488 [2022-03-15 15:29:39,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:39,687 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 165 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:39,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 214 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:39,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10488 states. [2022-03-15 15:29:39,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10488 to 5191. [2022-03-15 15:29:39,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.7485549132947975) internal successors, (24645), 5190 states have internal predecessors, (24645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:39,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24645 transitions. [2022-03-15 15:29:39,820 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24645 transitions. Word has length 29 [2022-03-15 15:29:39,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:39,820 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24645 transitions. [2022-03-15 15:29:39,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:39,820 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24645 transitions. [2022-03-15 15:29:39,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:39,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:39,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:39,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-03-15 15:29:39,830 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:39,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:39,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1808670557, now seen corresponding path program 388 times [2022-03-15 15:29:39,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:39,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539540301] [2022-03-15 15:29:39,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:39,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:40,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:40,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:40,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539540301] [2022-03-15 15:29:40,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539540301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:40,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:40,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:40,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352753259] [2022-03-15 15:29:40,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:40,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:40,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:40,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:40,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:40,073 INFO L87 Difference]: Start difference. First operand 5191 states and 24645 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:40,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:40,269 INFO L93 Difference]: Finished difference Result 10903 states and 48739 transitions. [2022-03-15 15:29:40,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:40,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:40,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:40,299 INFO L225 Difference]: With dead ends: 10903 [2022-03-15 15:29:40,299 INFO L226 Difference]: Without dead ends: 10456 [2022-03-15 15:29:40,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:40,299 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:40,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 211 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:40,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10456 states. [2022-03-15 15:29:40,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10456 to 5159. [2022-03-15 15:29:40,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 5158 states have (on average 4.7531989143078714) internal successors, (24517), 5158 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:40,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 24517 transitions. [2022-03-15 15:29:40,432 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 24517 transitions. Word has length 29 [2022-03-15 15:29:40,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:40,432 INFO L470 AbstractCegarLoop]: Abstraction has 5159 states and 24517 transitions. [2022-03-15 15:29:40,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:40,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 24517 transitions. [2022-03-15 15:29:40,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:40,442 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:40,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:40,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-03-15 15:29:40,443 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:40,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:40,443 INFO L85 PathProgramCache]: Analyzing trace with hash 924584701, now seen corresponding path program 389 times [2022-03-15 15:29:40,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:40,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18535744] [2022-03-15 15:29:40,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:40,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:40,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:40,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18535744] [2022-03-15 15:29:40,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18535744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:40,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:40,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:40,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532245044] [2022-03-15 15:29:40,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:40,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:40,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:40,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:40,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:40,621 INFO L87 Difference]: Start difference. First operand 5159 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:40,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:40,838 INFO L93 Difference]: Finished difference Result 11205 states and 50033 transitions. [2022-03-15 15:29:40,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:40,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:40,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:40,872 INFO L225 Difference]: With dead ends: 11205 [2022-03-15 15:29:40,872 INFO L226 Difference]: Without dead ends: 10663 [2022-03-15 15:29:40,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:40,872 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 149 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:40,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 242 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:40,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10663 states. [2022-03-15 15:29:41,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10663 to 5239. [2022-03-15 15:29:41,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.735586101565483) internal successors, (24805), 5238 states have internal predecessors, (24805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24805 transitions. [2022-03-15 15:29:41,027 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24805 transitions. Word has length 29 [2022-03-15 15:29:41,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:41,027 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 24805 transitions. [2022-03-15 15:29:41,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:41,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24805 transitions. [2022-03-15 15:29:41,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:41,038 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:41,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:41,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-03-15 15:29:41,038 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:41,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:41,038 INFO L85 PathProgramCache]: Analyzing trace with hash 717776735, now seen corresponding path program 390 times [2022-03-15 15:29:41,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:41,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230428615] [2022-03-15 15:29:41,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:41,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:41,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:41,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:41,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230428615] [2022-03-15 15:29:41,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230428615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:41,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:41,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:41,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882171406] [2022-03-15 15:29:41,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:41,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:41,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:41,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:41,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:41,219 INFO L87 Difference]: Start difference. First operand 5239 states and 24805 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:41,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:41,416 INFO L93 Difference]: Finished difference Result 11078 states and 49426 transitions. [2022-03-15 15:29:41,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:41,417 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:41,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:41,451 INFO L225 Difference]: With dead ends: 11078 [2022-03-15 15:29:41,451 INFO L226 Difference]: Without dead ends: 10551 [2022-03-15 15:29:41,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:41,451 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 180 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:41,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 190 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:41,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10551 states. [2022-03-15 15:29:41,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10551 to 5127. [2022-03-15 15:29:41,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.757900897385876) internal successors, (24389), 5126 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:41,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24389 transitions. [2022-03-15 15:29:41,607 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24389 transitions. Word has length 29 [2022-03-15 15:29:41,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:41,607 INFO L470 AbstractCegarLoop]: Abstraction has 5127 states and 24389 transitions. [2022-03-15 15:29:41,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:41,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24389 transitions. [2022-03-15 15:29:41,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:41,617 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:41,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:41,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-03-15 15:29:41,618 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:41,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:41,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1593392005, now seen corresponding path program 391 times [2022-03-15 15:29:41,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:41,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211617384] [2022-03-15 15:29:41,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:41,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:41,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:41,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211617384] [2022-03-15 15:29:41,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211617384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:41,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:41,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:41,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705270001] [2022-03-15 15:29:41,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:41,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:41,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:41,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:41,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:41,800 INFO L87 Difference]: Start difference. First operand 5127 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:42,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:42,023 INFO L93 Difference]: Finished difference Result 11186 states and 50054 transitions. [2022-03-15 15:29:42,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:42,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:42,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:42,059 INFO L225 Difference]: With dead ends: 11186 [2022-03-15 15:29:42,059 INFO L226 Difference]: Without dead ends: 10771 [2022-03-15 15:29:42,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:42,059 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 163 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:42,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 220 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:42,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10771 states. [2022-03-15 15:29:42,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10771 to 5247. [2022-03-15 15:29:42,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.748951582157835) internal successors, (24913), 5246 states have internal predecessors, (24913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:42,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24913 transitions. [2022-03-15 15:29:42,221 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24913 transitions. Word has length 29 [2022-03-15 15:29:42,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:42,222 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 24913 transitions. [2022-03-15 15:29:42,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:42,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24913 transitions. [2022-03-15 15:29:42,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:42,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:42,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:42,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-03-15 15:29:42,233 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:42,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:42,233 INFO L85 PathProgramCache]: Analyzing trace with hash 608187975, now seen corresponding path program 392 times [2022-03-15 15:29:42,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:42,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941598026] [2022-03-15 15:29:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:42,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:42,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:42,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:42,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941598026] [2022-03-15 15:29:42,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941598026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:42,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:42,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:42,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151487243] [2022-03-15 15:29:42,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:42,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:42,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:42,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:42,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:42,368 INFO L87 Difference]: Start difference. First operand 5247 states and 24913 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:42,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:42,553 INFO L93 Difference]: Finished difference Result 11313 states and 50533 transitions. [2022-03-15 15:29:42,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:42,554 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:42,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:42,590 INFO L225 Difference]: With dead ends: 11313 [2022-03-15 15:29:42,590 INFO L226 Difference]: Without dead ends: 10691 [2022-03-15 15:29:42,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:42,591 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:42,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 207 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:42,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10691 states. [2022-03-15 15:29:42,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10691 to 5167. [2022-03-15 15:29:42,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.752806813782423) internal successors, (24553), 5166 states have internal predecessors, (24553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:42,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24553 transitions. [2022-03-15 15:29:42,751 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24553 transitions. Word has length 29 [2022-03-15 15:29:42,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:42,751 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24553 transitions. [2022-03-15 15:29:42,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:42,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24553 transitions. [2022-03-15 15:29:42,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:42,762 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:42,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:42,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-03-15 15:29:42,762 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:42,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:42,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1019527483, now seen corresponding path program 393 times [2022-03-15 15:29:42,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:42,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837727687] [2022-03-15 15:29:42,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:42,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:42,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:42,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:42,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837727687] [2022-03-15 15:29:42,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837727687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:42,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:42,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:42,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229193641] [2022-03-15 15:29:42,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:42,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:42,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:42,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:42,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:42,921 INFO L87 Difference]: Start difference. First operand 5167 states and 24553 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:43,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:43,163 INFO L93 Difference]: Finished difference Result 11083 states and 49595 transitions. [2022-03-15 15:29:43,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:43,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:43,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:43,198 INFO L225 Difference]: With dead ends: 11083 [2022-03-15 15:29:43,198 INFO L226 Difference]: Without dead ends: 10668 [2022-03-15 15:29:43,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:43,198 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 155 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:43,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 240 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:43,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10668 states. [2022-03-15 15:29:43,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10668 to 5215. [2022-03-15 15:29:43,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.742807825086306) internal successors, (24729), 5214 states have internal predecessors, (24729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:43,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24729 transitions. [2022-03-15 15:29:43,366 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24729 transitions. Word has length 29 [2022-03-15 15:29:43,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:43,366 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24729 transitions. [2022-03-15 15:29:43,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24729 transitions. [2022-03-15 15:29:43,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:43,377 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:43,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:43,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-03-15 15:29:43,377 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:43,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:43,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1657711015, now seen corresponding path program 394 times [2022-03-15 15:29:43,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:43,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421913283] [2022-03-15 15:29:43,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:43,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:43,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:43,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421913283] [2022-03-15 15:29:43,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421913283] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:43,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:43,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:43,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069340725] [2022-03-15 15:29:43,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:43,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:43,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:43,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:43,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:43,566 INFO L87 Difference]: Start difference. First operand 5215 states and 24729 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:43,770 INFO L93 Difference]: Finished difference Result 11139 states and 49799 transitions. [2022-03-15 15:29:43,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:43,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:43,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:43,807 INFO L225 Difference]: With dead ends: 11139 [2022-03-15 15:29:43,807 INFO L226 Difference]: Without dead ends: 10620 [2022-03-15 15:29:43,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:43,807 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 160 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:43,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 213 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:43,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10620 states. [2022-03-15 15:29:43,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10620 to 5167. [2022-03-15 15:29:43,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.748161053039102) internal successors, (24529), 5166 states have internal predecessors, (24529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:43,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24529 transitions. [2022-03-15 15:29:43,973 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24529 transitions. Word has length 29 [2022-03-15 15:29:43,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:43,973 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24529 transitions. [2022-03-15 15:29:43,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:43,973 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24529 transitions. [2022-03-15 15:29:43,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:43,984 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:43,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:43,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-03-15 15:29:43,984 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:43,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:43,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1375615977, now seen corresponding path program 395 times [2022-03-15 15:29:43,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:43,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471621039] [2022-03-15 15:29:43,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:43,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:44,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:44,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:44,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471621039] [2022-03-15 15:29:44,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471621039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:44,107 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:44,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:44,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382646840] [2022-03-15 15:29:44,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:44,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:44,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:44,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:44,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:44,108 INFO L87 Difference]: Start difference. First operand 5167 states and 24529 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:44,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:44,263 INFO L93 Difference]: Finished difference Result 11397 states and 50909 transitions. [2022-03-15 15:29:44,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:44,263 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:44,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:44,297 INFO L225 Difference]: With dead ends: 11397 [2022-03-15 15:29:44,297 INFO L226 Difference]: Without dead ends: 10855 [2022-03-15 15:29:44,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:44,297 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 168 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:44,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 213 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:44,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10855 states. [2022-03-15 15:29:44,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10855 to 5275. [2022-03-15 15:29:44,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.726772847933257) internal successors, (24929), 5274 states have internal predecessors, (24929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:44,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24929 transitions. [2022-03-15 15:29:44,453 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24929 transitions. Word has length 29 [2022-03-15 15:29:44,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:44,454 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 24929 transitions. [2022-03-15 15:29:44,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:44,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24929 transitions. [2022-03-15 15:29:44,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:44,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:44,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:44,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-03-15 15:29:44,464 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:44,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:44,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1285856327, now seen corresponding path program 396 times [2022-03-15 15:29:44,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:44,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726237394] [2022-03-15 15:29:44,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:44,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:44,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:44,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726237394] [2022-03-15 15:29:44,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726237394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:44,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:44,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:44,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090352124] [2022-03-15 15:29:44,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:44,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:44,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:44,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:44,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:44,592 INFO L87 Difference]: Start difference. First operand 5275 states and 24929 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:44,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:44,780 INFO L93 Difference]: Finished difference Result 11326 states and 50526 transitions. [2022-03-15 15:29:44,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:44,781 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:44,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:44,811 INFO L225 Difference]: With dead ends: 11326 [2022-03-15 15:29:44,811 INFO L226 Difference]: Without dead ends: 10707 [2022-03-15 15:29:44,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:44,812 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:44,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 243 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:44,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10707 states. [2022-03-15 15:29:44,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10707 to 5127. [2022-03-15 15:29:44,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.7547795552087395) internal successors, (24373), 5126 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:44,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24373 transitions. [2022-03-15 15:29:44,945 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24373 transitions. Word has length 29 [2022-03-15 15:29:44,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:44,945 INFO L470 AbstractCegarLoop]: Abstraction has 5127 states and 24373 transitions. [2022-03-15 15:29:44,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:44,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24373 transitions. [2022-03-15 15:29:44,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:44,954 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:44,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:44,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-03-15 15:29:44,955 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:44,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:44,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1512926621, now seen corresponding path program 397 times [2022-03-15 15:29:44,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:44,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893795925] [2022-03-15 15:29:44,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:44,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:45,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:45,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:45,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893795925] [2022-03-15 15:29:45,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893795925] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:45,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:45,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:45,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926270906] [2022-03-15 15:29:45,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:45,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:45,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:45,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:45,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:45,107 INFO L87 Difference]: Start difference. First operand 5127 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:45,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:45,268 INFO L93 Difference]: Finished difference Result 10752 states and 48128 transitions. [2022-03-15 15:29:45,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:45,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:45,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:45,303 INFO L225 Difference]: With dead ends: 10752 [2022-03-15 15:29:45,303 INFO L226 Difference]: Without dead ends: 10337 [2022-03-15 15:29:45,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:45,303 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 187 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:45,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 200 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:45,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10337 states. [2022-03-15 15:29:45,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10337 to 5175. [2022-03-15 15:29:45,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.747777348279861) internal successors, (24565), 5174 states have internal predecessors, (24565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:45,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24565 transitions. [2022-03-15 15:29:45,484 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24565 transitions. Word has length 29 [2022-03-15 15:29:45,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:45,484 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24565 transitions. [2022-03-15 15:29:45,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:45,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24565 transitions. [2022-03-15 15:29:45,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:45,496 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:45,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:45,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-03-15 15:29:45,496 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:45,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:45,496 INFO L85 PathProgramCache]: Analyzing trace with hash -845460707, now seen corresponding path program 398 times [2022-03-15 15:29:45,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:45,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173107552] [2022-03-15 15:29:45,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:45,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:45,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:45,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173107552] [2022-03-15 15:29:45,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173107552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:45,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:45,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:45,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414045338] [2022-03-15 15:29:45,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:45,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:45,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:45,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:45,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:45,609 INFO L87 Difference]: Start difference. First operand 5175 states and 24565 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:45,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:45,807 INFO L93 Difference]: Finished difference Result 10752 states and 48096 transitions. [2022-03-15 15:29:45,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:45,807 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:45,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:45,839 INFO L225 Difference]: With dead ends: 10752 [2022-03-15 15:29:45,839 INFO L226 Difference]: Without dead ends: 10305 [2022-03-15 15:29:45,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:45,839 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 168 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:45,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 223 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:45,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10305 states. [2022-03-15 15:29:45,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10305 to 5143. [2022-03-15 15:29:45,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.7524309607156745) internal successors, (24437), 5142 states have internal predecessors, (24437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:45,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24437 transitions. [2022-03-15 15:29:45,992 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24437 transitions. Word has length 29 [2022-03-15 15:29:45,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:45,992 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24437 transitions. [2022-03-15 15:29:45,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:45,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24437 transitions. [2022-03-15 15:29:46,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:46,004 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:46,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:46,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-03-15 15:29:46,005 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:46,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:46,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1608080965, now seen corresponding path program 399 times [2022-03-15 15:29:46,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:46,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181027010] [2022-03-15 15:29:46,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:46,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:46,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:46,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181027010] [2022-03-15 15:29:46,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181027010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:46,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:46,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:46,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534713325] [2022-03-15 15:29:46,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:46,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:46,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:46,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:46,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:46,175 INFO L87 Difference]: Start difference. First operand 5143 states and 24437 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:46,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:46,405 INFO L93 Difference]: Finished difference Result 10824 states and 48444 transitions. [2022-03-15 15:29:46,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:46,405 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:46,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:46,438 INFO L225 Difference]: With dead ends: 10824 [2022-03-15 15:29:46,438 INFO L226 Difference]: Without dead ends: 10409 [2022-03-15 15:29:46,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:46,438 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 151 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:46,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 260 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:46,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10409 states. [2022-03-15 15:29:46,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10409 to 5191. [2022-03-15 15:29:46,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.742389210019268) internal successors, (24613), 5190 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:46,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24613 transitions. [2022-03-15 15:29:46,591 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24613 transitions. Word has length 29 [2022-03-15 15:29:46,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:46,592 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24613 transitions. [2022-03-15 15:29:46,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:46,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24613 transitions. [2022-03-15 15:29:46,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:46,602 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:46,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:46,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-03-15 15:29:46,602 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:46,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:46,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1534598469, now seen corresponding path program 400 times [2022-03-15 15:29:46,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:46,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292779156] [2022-03-15 15:29:46,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:46,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:46,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:46,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:46,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292779156] [2022-03-15 15:29:46,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292779156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:46,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:46,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:46,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203275421] [2022-03-15 15:29:46,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:46,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:46,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:46,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:46,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:46,721 INFO L87 Difference]: Start difference. First operand 5191 states and 24613 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:46,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:46,893 INFO L93 Difference]: Finished difference Result 10880 states and 48648 transitions. [2022-03-15 15:29:46,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:46,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:46,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:46,927 INFO L225 Difference]: With dead ends: 10880 [2022-03-15 15:29:46,927 INFO L226 Difference]: Without dead ends: 10361 [2022-03-15 15:29:46,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:46,927 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 167 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:46,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 218 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:46,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10361 states. [2022-03-15 15:29:47,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10361 to 5143. [2022-03-15 15:29:47,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.749319330999611) internal successors, (24421), 5142 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:47,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24421 transitions. [2022-03-15 15:29:47,077 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24421 transitions. Word has length 29 [2022-03-15 15:29:47,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:47,077 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24421 transitions. [2022-03-15 15:29:47,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:47,077 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24421 transitions. [2022-03-15 15:29:47,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:47,087 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:47,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:47,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-03-15 15:29:47,087 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:47,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:47,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1356470173, now seen corresponding path program 401 times [2022-03-15 15:29:47,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:47,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25447586] [2022-03-15 15:29:47,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:47,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:47,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:47,245 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:47,245 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25447586] [2022-03-15 15:29:47,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25447586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:47,245 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:47,245 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:47,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139248737] [2022-03-15 15:29:47,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:47,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:47,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:47,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:47,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:47,246 INFO L87 Difference]: Start difference. First operand 5143 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:47,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:47,431 INFO L93 Difference]: Finished difference Result 10824 states and 48428 transitions. [2022-03-15 15:29:47,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:47,431 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:47,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:47,464 INFO L225 Difference]: With dead ends: 10824 [2022-03-15 15:29:47,465 INFO L226 Difference]: Without dead ends: 10409 [2022-03-15 15:29:47,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:47,465 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 153 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:47,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 212 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:47,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10409 states. [2022-03-15 15:29:47,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10409 to 5191. [2022-03-15 15:29:47,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.739306358381503) internal successors, (24597), 5190 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:47,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24597 transitions. [2022-03-15 15:29:47,618 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24597 transitions. Word has length 29 [2022-03-15 15:29:47,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:47,618 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24597 transitions. [2022-03-15 15:29:47,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:47,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24597 transitions. [2022-03-15 15:29:47,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:47,629 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:47,629 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:47,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-03-15 15:29:47,629 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:47,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:47,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1149662207, now seen corresponding path program 402 times [2022-03-15 15:29:47,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:47,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625873325] [2022-03-15 15:29:47,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:47,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:47,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:47,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:47,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625873325] [2022-03-15 15:29:47,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625873325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:47,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:47,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:47,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736792632] [2022-03-15 15:29:47,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:47,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:47,774 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:47,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:47,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:47,775 INFO L87 Difference]: Start difference. First operand 5191 states and 24597 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:47,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:47,986 INFO L93 Difference]: Finished difference Result 10880 states and 48632 transitions. [2022-03-15 15:29:47,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:47,986 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:47,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:48,021 INFO L225 Difference]: With dead ends: 10880 [2022-03-15 15:29:48,021 INFO L226 Difference]: Without dead ends: 10345 [2022-03-15 15:29:48,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:48,021 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 143 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:48,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 235 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:48,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10345 states. [2022-03-15 15:29:48,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10345 to 5127. [2022-03-15 15:29:48,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 5126 states have (on average 4.753218884120171) internal successors, (24365), 5126 states have internal predecessors, (24365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:48,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 24365 transitions. [2022-03-15 15:29:48,196 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 24365 transitions. Word has length 29 [2022-03-15 15:29:48,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:48,196 INFO L470 AbstractCegarLoop]: Abstraction has 5127 states and 24365 transitions. [2022-03-15 15:29:48,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 24365 transitions. [2022-03-15 15:29:48,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:48,207 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:48,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:48,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-03-15 15:29:48,207 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:48,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:48,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1669839939, now seen corresponding path program 403 times [2022-03-15 15:29:48,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:48,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068971178] [2022-03-15 15:29:48,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:48,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:48,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:48,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:48,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068971178] [2022-03-15 15:29:48,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068971178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:48,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:48,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:48,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658530948] [2022-03-15 15:29:48,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:48,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:48,337 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:48,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:48,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:48,337 INFO L87 Difference]: Start difference. First operand 5127 states and 24365 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:48,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:48,499 INFO L93 Difference]: Finished difference Result 11313 states and 50557 transitions. [2022-03-15 15:29:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:48,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:48,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:48,535 INFO L225 Difference]: With dead ends: 11313 [2022-03-15 15:29:48,535 INFO L226 Difference]: Without dead ends: 10771 [2022-03-15 15:29:48,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:48,535 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 175 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:48,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 210 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:48,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10771 states. [2022-03-15 15:29:48,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10771 to 5247. [2022-03-15 15:29:48,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5247 states, 5246 states have (on average 4.738276782310332) internal successors, (24857), 5246 states have internal predecessors, (24857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:48,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5247 states to 5247 states and 24857 transitions. [2022-03-15 15:29:48,713 INFO L78 Accepts]: Start accepts. Automaton has 5247 states and 24857 transitions. Word has length 29 [2022-03-15 15:29:48,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:48,713 INFO L470 AbstractCegarLoop]: Abstraction has 5247 states and 24857 transitions. [2022-03-15 15:29:48,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:48,713 INFO L276 IsEmpty]: Start isEmpty. Operand 5247 states and 24857 transitions. [2022-03-15 15:29:48,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:48,726 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:48,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:48,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-03-15 15:29:48,727 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:48,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:48,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1876647905, now seen corresponding path program 404 times [2022-03-15 15:29:48,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:48,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017063521] [2022-03-15 15:29:48,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:48,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:48,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:48,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:48,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017063521] [2022-03-15 15:29:48,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017063521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:48,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:48,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:48,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428310527] [2022-03-15 15:29:48,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:48,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:48,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:48,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:48,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:48,915 INFO L87 Difference]: Start difference. First operand 5247 states and 24857 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:49,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:49,126 INFO L93 Difference]: Finished difference Result 11186 states and 49950 transitions. [2022-03-15 15:29:49,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:49,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:49,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:49,162 INFO L225 Difference]: With dead ends: 11186 [2022-03-15 15:29:49,162 INFO L226 Difference]: Without dead ends: 10691 [2022-03-15 15:29:49,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:49,162 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 171 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:49,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 228 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:49,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10691 states. [2022-03-15 15:29:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10691 to 5167. [2022-03-15 15:29:49,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.748161053039102) internal successors, (24529), 5166 states have internal predecessors, (24529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:49,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24529 transitions. [2022-03-15 15:29:49,324 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24529 transitions. Word has length 29 [2022-03-15 15:29:49,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:49,324 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24529 transitions. [2022-03-15 15:29:49,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:49,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24529 transitions. [2022-03-15 15:29:49,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:49,335 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:49,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:49,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-03-15 15:29:49,335 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:49,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:49,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1451167647, now seen corresponding path program 405 times [2022-03-15 15:29:49,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:49,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639180535] [2022-03-15 15:29:49,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:49,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:49,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:49,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:49,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639180535] [2022-03-15 15:29:49,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639180535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:49,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:49,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:49,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933456184] [2022-03-15 15:29:49,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:49,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:49,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:49,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:49,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:49,501 INFO L87 Difference]: Start difference. First operand 5167 states and 24529 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:49,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:49,694 INFO L93 Difference]: Finished difference Result 11397 states and 50909 transitions. [2022-03-15 15:29:49,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:49,695 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:49,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:49,729 INFO L225 Difference]: With dead ends: 11397 [2022-03-15 15:29:49,729 INFO L226 Difference]: Without dead ends: 10855 [2022-03-15 15:29:49,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:49,729 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 157 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:49,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 219 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:49,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10855 states. [2022-03-15 15:29:49,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10855 to 5275. [2022-03-15 15:29:49,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.726772847933257) internal successors, (24929), 5274 states have internal predecessors, (24929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:49,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24929 transitions. [2022-03-15 15:29:49,888 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24929 transitions. Word has length 29 [2022-03-15 15:29:49,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:49,889 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 24929 transitions. [2022-03-15 15:29:49,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:49,889 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24929 transitions. [2022-03-15 15:29:49,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:49,899 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:49,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:49,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-03-15 15:29:49,899 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:49,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:49,900 INFO L85 PathProgramCache]: Analyzing trace with hash 212864799, now seen corresponding path program 406 times [2022-03-15 15:29:49,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:49,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817796526] [2022-03-15 15:29:49,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:49,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:50,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:50,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:50,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817796526] [2022-03-15 15:29:50,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817796526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:50,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:50,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:50,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100221850] [2022-03-15 15:29:50,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:50,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:50,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:50,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:50,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:50,032 INFO L87 Difference]: Start difference. First operand 5275 states and 24929 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:50,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:50,236 INFO L93 Difference]: Finished difference Result 11326 states and 50526 transitions. [2022-03-15 15:29:50,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:50,237 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:50,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:50,273 INFO L225 Difference]: With dead ends: 11326 [2022-03-15 15:29:50,273 INFO L226 Difference]: Without dead ends: 10747 [2022-03-15 15:29:50,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:50,273 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 147 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:50,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 233 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:50,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10747 states. [2022-03-15 15:29:50,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10747 to 5167. [2022-03-15 15:29:50,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.7404181184668985) internal successors, (24489), 5166 states have internal predecessors, (24489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:50,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24489 transitions. [2022-03-15 15:29:50,431 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24489 transitions. Word has length 29 [2022-03-15 15:29:50,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:50,431 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24489 transitions. [2022-03-15 15:29:50,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:50,431 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24489 transitions. [2022-03-15 15:29:50,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:50,441 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:50,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:50,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-03-15 15:29:50,441 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:50,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:50,442 INFO L85 PathProgramCache]: Analyzing trace with hash -141755647, now seen corresponding path program 407 times [2022-03-15 15:29:50,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:50,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620507771] [2022-03-15 15:29:50,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:50,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:50,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:50,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:50,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620507771] [2022-03-15 15:29:50,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620507771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:50,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:50,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:50,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322161018] [2022-03-15 15:29:50,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:50,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:50,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:50,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:50,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:50,598 INFO L87 Difference]: Start difference. First operand 5167 states and 24489 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:50,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:50,806 INFO L93 Difference]: Finished difference Result 11083 states and 49531 transitions. [2022-03-15 15:29:50,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:50,807 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:50,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:50,844 INFO L225 Difference]: With dead ends: 11083 [2022-03-15 15:29:50,844 INFO L226 Difference]: Without dead ends: 10668 [2022-03-15 15:29:50,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:50,844 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 156 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:50,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 219 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:50,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10668 states. [2022-03-15 15:29:50,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10668 to 5215. [2022-03-15 15:29:50,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.730533179900268) internal successors, (24665), 5214 states have internal predecessors, (24665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:51,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24665 transitions. [2022-03-15 15:29:51,014 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24665 transitions. Word has length 29 [2022-03-15 15:29:51,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:51,015 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24665 transitions. [2022-03-15 15:29:51,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:51,015 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24665 transitions. [2022-03-15 15:29:51,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:51,025 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:51,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:51,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-03-15 15:29:51,025 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:51,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:51,026 INFO L85 PathProgramCache]: Analyzing trace with hash 2037131999, now seen corresponding path program 408 times [2022-03-15 15:29:51,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:51,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242826124] [2022-03-15 15:29:51,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:51,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:51,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:51,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:51,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242826124] [2022-03-15 15:29:51,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242826124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:51,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:51,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:51,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107419094] [2022-03-15 15:29:51,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:51,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:51,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:51,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:51,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:51,201 INFO L87 Difference]: Start difference. First operand 5215 states and 24665 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:51,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:51,406 INFO L93 Difference]: Finished difference Result 11139 states and 49735 transitions. [2022-03-15 15:29:51,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:51,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:51,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:51,437 INFO L225 Difference]: With dead ends: 11139 [2022-03-15 15:29:51,437 INFO L226 Difference]: Without dead ends: 10564 [2022-03-15 15:29:51,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:51,437 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:51,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 213 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:51,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10564 states. [2022-03-15 15:29:51,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10564 to 5111. [2022-03-15 15:29:51,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5111 states, 5110 states have (on average 4.757142857142857) internal successors, (24309), 5110 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:51,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5111 states to 5111 states and 24309 transitions. [2022-03-15 15:29:51,568 INFO L78 Accepts]: Start accepts. Automaton has 5111 states and 24309 transitions. Word has length 29 [2022-03-15 15:29:51,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:51,568 INFO L470 AbstractCegarLoop]: Abstraction has 5111 states and 24309 transitions. [2022-03-15 15:29:51,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:51,569 INFO L276 IsEmpty]: Start isEmpty. Operand 5111 states and 24309 transitions. [2022-03-15 15:29:51,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:51,578 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:51,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:51,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-03-15 15:29:51,578 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:51,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:51,578 INFO L85 PathProgramCache]: Analyzing trace with hash -604007325, now seen corresponding path program 409 times [2022-03-15 15:29:51,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:51,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262631950] [2022-03-15 15:29:51,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:51,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:51,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:51,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:51,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262631950] [2022-03-15 15:29:51,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262631950] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:51,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:51,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:51,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100204203] [2022-03-15 15:29:51,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:51,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:51,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:51,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:51,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:51,753 INFO L87 Difference]: Start difference. First operand 5111 states and 24309 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:51,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:51,963 INFO L93 Difference]: Finished difference Result 11360 states and 50901 transitions. [2022-03-15 15:29:51,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:51,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:51,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:51,996 INFO L225 Difference]: With dead ends: 11360 [2022-03-15 15:29:51,996 INFO L226 Difference]: Without dead ends: 10945 [2022-03-15 15:29:51,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:51,996 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 175 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:51,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 199 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:52,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10945 states. [2022-03-15 15:29:52,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10945 to 5251. [2022-03-15 15:29:52,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.751428571428572) internal successors, (24945), 5250 states have internal predecessors, (24945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:52,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24945 transitions. [2022-03-15 15:29:52,191 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24945 transitions. Word has length 29 [2022-03-15 15:29:52,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:52,191 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24945 transitions. [2022-03-15 15:29:52,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:52,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24945 transitions. [2022-03-15 15:29:52,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:52,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:52,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:52,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-03-15 15:29:52,200 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:52,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:52,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1589211355, now seen corresponding path program 410 times [2022-03-15 15:29:52,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:52,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73024958] [2022-03-15 15:29:52,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:52,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:52,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:52,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:52,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73024958] [2022-03-15 15:29:52,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73024958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:52,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:52,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:52,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669765722] [2022-03-15 15:29:52,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:52,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:52,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:52,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:52,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:52,368 INFO L87 Difference]: Start difference. First operand 5251 states and 24945 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:52,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:52,545 INFO L93 Difference]: Finished difference Result 11487 states and 51380 transitions. [2022-03-15 15:29:52,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:52,545 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:52,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:52,576 INFO L225 Difference]: With dead ends: 11487 [2022-03-15 15:29:52,576 INFO L226 Difference]: Without dead ends: 10865 [2022-03-15 15:29:52,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:52,576 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 160 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:52,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 218 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:52,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10865 states. [2022-03-15 15:29:52,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10865 to 5171. [2022-03-15 15:29:52,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.75531914893617) internal successors, (24585), 5170 states have internal predecessors, (24585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:52,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24585 transitions. [2022-03-15 15:29:52,733 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24585 transitions. Word has length 29 [2022-03-15 15:29:52,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:52,734 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24585 transitions. [2022-03-15 15:29:52,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:52,734 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24585 transitions. [2022-03-15 15:29:52,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:52,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:52,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:52,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-03-15 15:29:52,744 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:52,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:52,745 INFO L85 PathProgramCache]: Analyzing trace with hash -936151133, now seen corresponding path program 411 times [2022-03-15 15:29:52,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:52,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908446108] [2022-03-15 15:29:52,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:52,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:52,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:52,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:52,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908446108] [2022-03-15 15:29:52,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908446108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:52,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:52,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:52,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881654221] [2022-03-15 15:29:52,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:52,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:52,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:52,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:52,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:52,904 INFO L87 Difference]: Start difference. First operand 5171 states and 24585 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:53,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:53,112 INFO L93 Difference]: Finished difference Result 11261 states and 50454 transitions. [2022-03-15 15:29:53,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:53,112 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:53,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:53,146 INFO L225 Difference]: With dead ends: 11261 [2022-03-15 15:29:53,147 INFO L226 Difference]: Without dead ends: 10846 [2022-03-15 15:29:53,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:53,147 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 167 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:53,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 206 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:53,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10846 states. [2022-03-15 15:29:53,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10846 to 5219. [2022-03-15 15:29:53,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.745304714449981) internal successors, (24761), 5218 states have internal predecessors, (24761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:53,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24761 transitions. [2022-03-15 15:29:53,296 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24761 transitions. Word has length 29 [2022-03-15 15:29:53,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:53,296 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24761 transitions. [2022-03-15 15:29:53,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:53,296 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24761 transitions. [2022-03-15 15:29:53,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:53,306 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:53,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:53,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-03-15 15:29:53,306 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:53,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:53,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1938207995, now seen corresponding path program 412 times [2022-03-15 15:29:53,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:53,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038395100] [2022-03-15 15:29:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:53,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:53,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:53,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:53,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038395100] [2022-03-15 15:29:53,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038395100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:53,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:53,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:53,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537452324] [2022-03-15 15:29:53,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:53,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:53,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:53,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:53,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:53,467 INFO L87 Difference]: Start difference. First operand 5219 states and 24761 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:53,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:53,681 INFO L93 Difference]: Finished difference Result 11321 states and 50670 transitions. [2022-03-15 15:29:53,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:53,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:53,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:53,713 INFO L225 Difference]: With dead ends: 11321 [2022-03-15 15:29:53,713 INFO L226 Difference]: Without dead ends: 10798 [2022-03-15 15:29:53,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:53,713 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:53,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 213 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:53,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10798 states. [2022-03-15 15:29:53,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10798 to 5171. [2022-03-15 15:29:53,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.750676982591877) internal successors, (24561), 5170 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:53,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24561 transitions. [2022-03-15 15:29:53,868 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24561 transitions. Word has length 29 [2022-03-15 15:29:53,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:53,868 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24561 transitions. [2022-03-15 15:29:53,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:53,868 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24561 transitions. [2022-03-15 15:29:53,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:53,878 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:53,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:53,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-03-15 15:29:53,878 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:53,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:53,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1548104377, now seen corresponding path program 413 times [2022-03-15 15:29:53,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:53,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898750712] [2022-03-15 15:29:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:53,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:54,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:54,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:54,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898750712] [2022-03-15 15:29:54,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898750712] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:54,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:54,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:54,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737595981] [2022-03-15 15:29:54,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:54,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:54,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:54,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:54,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:54,051 INFO L87 Difference]: Start difference. First operand 5171 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:54,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:54,238 INFO L93 Difference]: Finished difference Result 11577 states and 51775 transitions. [2022-03-15 15:29:54,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:54,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:54,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:54,271 INFO L225 Difference]: With dead ends: 11577 [2022-03-15 15:29:54,271 INFO L226 Difference]: Without dead ends: 11035 [2022-03-15 15:29:54,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:54,272 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 163 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:54,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 214 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:54,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11035 states. [2022-03-15 15:29:54,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11035 to 5281. [2022-03-15 15:29:54,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 4.728409090909091) internal successors, (24966), 5280 states have internal predecessors, (24966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:54,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 24966 transitions. [2022-03-15 15:29:54,425 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 24966 transitions. Word has length 29 [2022-03-15 15:29:54,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:54,425 INFO L470 AbstractCegarLoop]: Abstraction has 5281 states and 24966 transitions. [2022-03-15 15:29:54,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:54,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 24966 transitions. [2022-03-15 15:29:54,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:54,435 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:54,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:54,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-03-15 15:29:54,435 INFO L402 AbstractCegarLoop]: === Iteration 419 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:54,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:54,436 INFO L85 PathProgramCache]: Analyzing trace with hash 2005910821, now seen corresponding path program 414 times [2022-03-15 15:29:54,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:54,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045632321] [2022-03-15 15:29:54,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:54,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:54,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:54,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:54,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045632321] [2022-03-15 15:29:54,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045632321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:54,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:54,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:54,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244346526] [2022-03-15 15:29:54,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:54,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:54,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:54,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:54,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:54,581 INFO L87 Difference]: Start difference. First operand 5281 states and 24966 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:54,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:54,790 INFO L93 Difference]: Finished difference Result 11510 states and 51402 transitions. [2022-03-15 15:29:54,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:54,791 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:54,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:54,823 INFO L225 Difference]: With dead ends: 11510 [2022-03-15 15:29:54,823 INFO L226 Difference]: Without dead ends: 10885 [2022-03-15 15:29:54,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:54,823 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 158 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:54,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 222 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:54,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2022-03-15 15:29:54,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 5131. [2022-03-15 15:29:54,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.756530214424951) internal successors, (24401), 5130 states have internal predecessors, (24401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:54,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24401 transitions. [2022-03-15 15:29:54,976 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24401 transitions. Word has length 29 [2022-03-15 15:29:54,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:54,976 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24401 transitions. [2022-03-15 15:29:54,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24401 transitions. [2022-03-15 15:29:54,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:54,986 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:54,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:54,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2022-03-15 15:29:54,987 INFO L402 AbstractCegarLoop]: === Iteration 420 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:54,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:54,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1645778885, now seen corresponding path program 415 times [2022-03-15 15:29:54,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:54,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49361494] [2022-03-15 15:29:54,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:54,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:55,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:55,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:55,156 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49361494] [2022-03-15 15:29:55,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49361494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:55,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:55,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:55,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573525004] [2022-03-15 15:29:55,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:55,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:55,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:55,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:55,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:55,157 INFO L87 Difference]: Start difference. First operand 5131 states and 24401 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:55,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:55,340 INFO L93 Difference]: Finished difference Result 11354 states and 50862 transitions. [2022-03-15 15:29:55,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:55,340 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:55,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:55,370 INFO L225 Difference]: With dead ends: 11354 [2022-03-15 15:29:55,370 INFO L226 Difference]: Without dead ends: 10939 [2022-03-15 15:29:55,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:55,371 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 158 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:55,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 232 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:55,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2022-03-15 15:29:55,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5251. [2022-03-15 15:29:55,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.747619047619048) internal successors, (24925), 5250 states have internal predecessors, (24925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:55,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24925 transitions. [2022-03-15 15:29:55,501 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24925 transitions. Word has length 29 [2022-03-15 15:29:55,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:55,501 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24925 transitions. [2022-03-15 15:29:55,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:55,502 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24925 transitions. [2022-03-15 15:29:55,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:55,511 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:55,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:55,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2022-03-15 15:29:55,511 INFO L402 AbstractCegarLoop]: === Iteration 421 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:55,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:55,511 INFO L85 PathProgramCache]: Analyzing trace with hash 660574855, now seen corresponding path program 416 times [2022-03-15 15:29:55,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:55,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398726063] [2022-03-15 15:29:55,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:55,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:55,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:55,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:55,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398726063] [2022-03-15 15:29:55,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398726063] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:55,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:55,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:55,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176401078] [2022-03-15 15:29:55,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:55,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:55,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:55,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:55,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:55,629 INFO L87 Difference]: Start difference. First operand 5251 states and 24925 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:55,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:55,785 INFO L93 Difference]: Finished difference Result 11481 states and 51341 transitions. [2022-03-15 15:29:55,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:55,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:55,817 INFO L225 Difference]: With dead ends: 11481 [2022-03-15 15:29:55,817 INFO L226 Difference]: Without dead ends: 10859 [2022-03-15 15:29:55,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:55,817 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 175 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:55,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 206 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:55,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10859 states. [2022-03-15 15:29:55,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10859 to 5171. [2022-03-15 15:29:55,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.751450676982592) internal successors, (24565), 5170 states have internal predecessors, (24565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:55,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24565 transitions. [2022-03-15 15:29:55,960 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24565 transitions. Word has length 29 [2022-03-15 15:29:55,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:55,960 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24565 transitions. [2022-03-15 15:29:55,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:55,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24565 transitions. [2022-03-15 15:29:55,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:55,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:55,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:55,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2022-03-15 15:29:55,970 INFO L402 AbstractCegarLoop]: === Iteration 422 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:55,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:55,970 INFO L85 PathProgramCache]: Analyzing trace with hash 4368291, now seen corresponding path program 417 times [2022-03-15 15:29:55,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:55,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151649186] [2022-03-15 15:29:55,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:55,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:56,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:56,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:56,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151649186] [2022-03-15 15:29:56,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151649186] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:56,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:56,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:56,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383797322] [2022-03-15 15:29:56,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:56,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:56,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:56,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:56,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:56,079 INFO L87 Difference]: Start difference. First operand 5171 states and 24565 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:56,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:56,269 INFO L93 Difference]: Finished difference Result 11251 states and 50403 transitions. [2022-03-15 15:29:56,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:56,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:56,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:56,301 INFO L225 Difference]: With dead ends: 11251 [2022-03-15 15:29:56,301 INFO L226 Difference]: Without dead ends: 10836 [2022-03-15 15:29:56,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:56,301 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 168 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:56,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 248 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:56,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10836 states. [2022-03-15 15:29:56,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10836 to 5219. [2022-03-15 15:29:56,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.741471828286699) internal successors, (24741), 5218 states have internal predecessors, (24741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24741 transitions. [2022-03-15 15:29:56,460 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24741 transitions. Word has length 29 [2022-03-15 15:29:56,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:56,461 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24741 transitions. [2022-03-15 15:29:56,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:56,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24741 transitions. [2022-03-15 15:29:56,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:56,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:56,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:56,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2022-03-15 15:29:56,472 INFO L402 AbstractCegarLoop]: === Iteration 423 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:56,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:56,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1613360507, now seen corresponding path program 418 times [2022-03-15 15:29:56,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:56,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10611316] [2022-03-15 15:29:56,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:56,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:56,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:56,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:56,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10611316] [2022-03-15 15:29:56,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10611316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:56,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:56,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:56,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779220639] [2022-03-15 15:29:56,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:56,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:56,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:56,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:56,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:56,591 INFO L87 Difference]: Start difference. First operand 5219 states and 24741 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:56,749 INFO L93 Difference]: Finished difference Result 11307 states and 50607 transitions. [2022-03-15 15:29:56,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:56,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:56,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:56,783 INFO L225 Difference]: With dead ends: 11307 [2022-03-15 15:29:56,783 INFO L226 Difference]: Without dead ends: 10788 [2022-03-15 15:29:56,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:56,783 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:56,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 211 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:56,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10788 states. [2022-03-15 15:29:56,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10788 to 5171. [2022-03-15 15:29:56,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.746808510638298) internal successors, (24541), 5170 states have internal predecessors, (24541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:56,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24541 transitions. [2022-03-15 15:29:56,930 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24541 transitions. Word has length 29 [2022-03-15 15:29:56,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:56,930 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24541 transitions. [2022-03-15 15:29:56,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:56,930 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24541 transitions. [2022-03-15 15:29:56,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:56,941 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:56,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:56,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2022-03-15 15:29:56,941 INFO L402 AbstractCegarLoop]: === Iteration 424 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:56,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:56,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1895455545, now seen corresponding path program 419 times [2022-03-15 15:29:56,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:56,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028107383] [2022-03-15 15:29:56,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:56,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:57,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:57,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:57,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028107383] [2022-03-15 15:29:57,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028107383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:57,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:57,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:57,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86047251] [2022-03-15 15:29:57,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:57,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:57,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:57,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:57,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:57,065 INFO L87 Difference]: Start difference. First operand 5171 states and 24541 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:57,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:57,264 INFO L93 Difference]: Finished difference Result 11565 states and 51717 transitions. [2022-03-15 15:29:57,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:57,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:57,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:57,301 INFO L225 Difference]: With dead ends: 11565 [2022-03-15 15:29:57,301 INFO L226 Difference]: Without dead ends: 11023 [2022-03-15 15:29:57,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:57,301 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 154 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:57,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 223 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:57,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11023 states. [2022-03-15 15:29:57,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11023 to 5279. [2022-03-15 15:29:57,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.725464190981432) internal successors, (24941), 5278 states have internal predecessors, (24941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:57,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24941 transitions. [2022-03-15 15:29:57,453 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24941 transitions. Word has length 29 [2022-03-15 15:29:57,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:57,453 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 24941 transitions. [2022-03-15 15:29:57,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:57,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24941 transitions. [2022-03-15 15:29:57,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:57,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:57,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:57,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2022-03-15 15:29:57,464 INFO L402 AbstractCegarLoop]: === Iteration 425 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:57,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:57,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1985215195, now seen corresponding path program 420 times [2022-03-15 15:29:57,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:57,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968126495] [2022-03-15 15:29:57,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:57,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:57,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:57,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:57,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968126495] [2022-03-15 15:29:57,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968126495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:57,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:57,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:57,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655443294] [2022-03-15 15:29:57,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:57,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:57,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:57,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:57,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:57,651 INFO L87 Difference]: Start difference. First operand 5279 states and 24941 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:57,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:57,890 INFO L93 Difference]: Finished difference Result 11494 states and 51334 transitions. [2022-03-15 15:29:57,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:57,891 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:57,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:57,927 INFO L225 Difference]: With dead ends: 11494 [2022-03-15 15:29:57,927 INFO L226 Difference]: Without dead ends: 10875 [2022-03-15 15:29:57,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:57,927 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 154 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:57,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 252 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:57,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10875 states. [2022-03-15 15:29:58,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10875 to 5131. [2022-03-15 15:29:58,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.752631578947368) internal successors, (24381), 5130 states have internal predecessors, (24381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:58,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24381 transitions. [2022-03-15 15:29:58,105 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24381 transitions. Word has length 29 [2022-03-15 15:29:58,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:58,105 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24381 transitions. [2022-03-15 15:29:58,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:58,105 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24381 transitions. [2022-03-15 15:29:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:58,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:58,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:58,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2022-03-15 15:29:58,116 INFO L402 AbstractCegarLoop]: === Iteration 426 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:58,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:58,117 INFO L85 PathProgramCache]: Analyzing trace with hash 604089059, now seen corresponding path program 421 times [2022-03-15 15:29:58,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:58,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254326713] [2022-03-15 15:29:58,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:58,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:58,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:58,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:58,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254326713] [2022-03-15 15:29:58,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254326713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:58,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:58,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:58,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517257695] [2022-03-15 15:29:58,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:58,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:58,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:58,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:58,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:58,279 INFO L87 Difference]: Start difference. First operand 5131 states and 24381 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:58,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:58,456 INFO L93 Difference]: Finished difference Result 11108 states and 49804 transitions. [2022-03-15 15:29:58,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:58,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:58,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:58,495 INFO L225 Difference]: With dead ends: 11108 [2022-03-15 15:29:58,495 INFO L226 Difference]: Without dead ends: 10693 [2022-03-15 15:29:58,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:58,495 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 174 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:58,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 202 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:58,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10693 states. [2022-03-15 15:29:58,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10693 to 5203. [2022-03-15 15:29:58,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.744521337946943) internal successors, (24681), 5202 states have internal predecessors, (24681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:58,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24681 transitions. [2022-03-15 15:29:58,656 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24681 transitions. Word has length 29 [2022-03-15 15:29:58,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:58,657 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24681 transitions. [2022-03-15 15:29:58,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:58,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24681 transitions. [2022-03-15 15:29:58,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:58,668 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:58,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:58,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2022-03-15 15:29:58,669 INFO L402 AbstractCegarLoop]: === Iteration 427 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:58,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:58,669 INFO L85 PathProgramCache]: Analyzing trace with hash -397967803, now seen corresponding path program 422 times [2022-03-15 15:29:58,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:58,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107037775] [2022-03-15 15:29:58,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:58,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:58,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:58,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:58,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107037775] [2022-03-15 15:29:58,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107037775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:58,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:58,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:58,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168857046] [2022-03-15 15:29:58,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:58,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:58,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:58,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:58,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:58,801 INFO L87 Difference]: Start difference. First operand 5203 states and 24681 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:59,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:59,010 INFO L93 Difference]: Finished difference Result 11168 states and 50020 transitions. [2022-03-15 15:29:59,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:59,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:59,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:59,047 INFO L225 Difference]: With dead ends: 11168 [2022-03-15 15:29:59,047 INFO L226 Difference]: Without dead ends: 10645 [2022-03-15 15:29:59,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:59,047 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 154 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:59,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 219 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:59,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10645 states. [2022-03-15 15:29:59,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10645 to 5155. [2022-03-15 15:29:59,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.749902987970509) internal successors, (24481), 5154 states have internal predecessors, (24481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24481 transitions. [2022-03-15 15:29:59,209 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24481 transitions. Word has length 29 [2022-03-15 15:29:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:59,209 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24481 transitions. [2022-03-15 15:29:59,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:59,209 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24481 transitions. [2022-03-15 15:29:59,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:59,220 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:59,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:59,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2022-03-15 15:29:59,220 INFO L402 AbstractCegarLoop]: === Iteration 428 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:59,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:59,220 INFO L85 PathProgramCache]: Analyzing trace with hash 123187013, now seen corresponding path program 423 times [2022-03-15 15:29:59,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:59,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606382585] [2022-03-15 15:29:59,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:59,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:59,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:59,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:59,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606382585] [2022-03-15 15:29:59,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606382585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:59,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:59,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:59,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859541604] [2022-03-15 15:29:59,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:59,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:59,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:59,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:59,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:59,323 INFO L87 Difference]: Start difference. First operand 5155 states and 24481 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:59,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:59,493 INFO L93 Difference]: Finished difference Result 11104 states and 49768 transitions. [2022-03-15 15:29:59,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:59,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:59,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:29:59,528 INFO L225 Difference]: With dead ends: 11104 [2022-03-15 15:29:59,528 INFO L226 Difference]: Without dead ends: 10689 [2022-03-15 15:29:59,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:29:59,528 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 164 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:29:59,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 215 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:29:59,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10689 states. [2022-03-15 15:29:59,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10689 to 5203. [2022-03-15 15:29:59,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.739907727797001) internal successors, (24657), 5202 states have internal predecessors, (24657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:59,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24657 transitions. [2022-03-15 15:29:59,689 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24657 transitions. Word has length 29 [2022-03-15 15:29:59,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:29:59,689 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24657 transitions. [2022-03-15 15:29:59,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:59,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24657 transitions. [2022-03-15 15:29:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:29:59,700 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:29:59,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:29:59,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2022-03-15 15:29:59,700 INFO L402 AbstractCegarLoop]: === Iteration 429 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:29:59,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:29:59,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1318987205, now seen corresponding path program 424 times [2022-03-15 15:29:59,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:29:59,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100055231] [2022-03-15 15:29:59,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:29:59,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:29:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:29:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:29:59,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:29:59,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100055231] [2022-03-15 15:29:59,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100055231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:29:59,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:29:59,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:29:59,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474989015] [2022-03-15 15:29:59,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:29:59,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:29:59,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:29:59,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:29:59,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:29:59,805 INFO L87 Difference]: Start difference. First operand 5203 states and 24657 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:29:59,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:29:59,993 INFO L93 Difference]: Finished difference Result 11160 states and 49972 transitions. [2022-03-15 15:29:59,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:29:59,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:29:59,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:00,026 INFO L225 Difference]: With dead ends: 11160 [2022-03-15 15:30:00,026 INFO L226 Difference]: Without dead ends: 10641 [2022-03-15 15:30:00,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:00,026 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 153 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:00,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 241 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:00,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10641 states. [2022-03-15 15:30:00,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10641 to 5155. [2022-03-15 15:30:00,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.745246410554909) internal successors, (24457), 5154 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:00,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24457 transitions. [2022-03-15 15:30:00,162 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24457 transitions. Word has length 29 [2022-03-15 15:30:00,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:00,162 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24457 transitions. [2022-03-15 15:30:00,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:00,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24457 transitions. [2022-03-15 15:30:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:00,172 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:00,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:00,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2022-03-15 15:30:00,172 INFO L402 AbstractCegarLoop]: === Iteration 430 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:00,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:00,172 INFO L85 PathProgramCache]: Analyzing trace with hash -257181529, now seen corresponding path program 425 times [2022-03-15 15:30:00,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:00,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166951021] [2022-03-15 15:30:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:00,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:00,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:00,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166951021] [2022-03-15 15:30:00,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166951021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:00,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:00,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:00,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043823879] [2022-03-15 15:30:00,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:00,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:00,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:00,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:00,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:00,325 INFO L87 Difference]: Start difference. First operand 5155 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:00,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:00,542 INFO L93 Difference]: Finished difference Result 11252 states and 50412 transitions. [2022-03-15 15:30:00,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:00,542 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:00,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:00,576 INFO L225 Difference]: With dead ends: 11252 [2022-03-15 15:30:00,576 INFO L226 Difference]: Without dead ends: 10777 [2022-03-15 15:30:00,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:00,576 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:00,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 232 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:00,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10777 states. [2022-03-15 15:30:00,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10777 to 5231. [2022-03-15 15:30:00,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 4.731357552581262) internal successors, (24745), 5230 states have internal predecessors, (24745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:00,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 24745 transitions. [2022-03-15 15:30:00,723 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 24745 transitions. Word has length 29 [2022-03-15 15:30:00,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:00,723 INFO L470 AbstractCegarLoop]: Abstraction has 5231 states and 24745 transitions. [2022-03-15 15:30:00,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:00,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 24745 transitions. [2022-03-15 15:30:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:00,734 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:00,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:00,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2022-03-15 15:30:00,734 INFO L402 AbstractCegarLoop]: === Iteration 431 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:00,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:00,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1994448773, now seen corresponding path program 426 times [2022-03-15 15:30:00,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:00,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937504732] [2022-03-15 15:30:00,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:00,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:00,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:00,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:00,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937504732] [2022-03-15 15:30:00,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937504732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:00,943 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:00,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:00,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415165213] [2022-03-15 15:30:00,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:00,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:00,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:00,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:00,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:00,944 INFO L87 Difference]: Start difference. First operand 5231 states and 24745 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:01,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:01,169 INFO L93 Difference]: Finished difference Result 11248 states and 50324 transitions. [2022-03-15 15:30:01,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:01,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:01,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:01,208 INFO L225 Difference]: With dead ends: 11248 [2022-03-15 15:30:01,209 INFO L226 Difference]: Without dead ends: 10677 [2022-03-15 15:30:01,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:01,209 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 151 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:01,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 211 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:01,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10677 states. [2022-03-15 15:30:01,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10677 to 5131. [2022-03-15 15:30:01,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.750292397660819) internal successors, (24369), 5130 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24369 transitions. [2022-03-15 15:30:01,374 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24369 transitions. Word has length 29 [2022-03-15 15:30:01,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:01,374 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24369 transitions. [2022-03-15 15:30:01,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:01,374 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24369 transitions. [2022-03-15 15:30:01,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:01,384 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:01,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:01,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2022-03-15 15:30:01,385 INFO L402 AbstractCegarLoop]: === Iteration 432 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:01,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:01,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1510797929, now seen corresponding path program 427 times [2022-03-15 15:30:01,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:01,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618212145] [2022-03-15 15:30:01,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:01,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:01,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:01,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:01,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618212145] [2022-03-15 15:30:01,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618212145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:01,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:01,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:01,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271149236] [2022-03-15 15:30:01,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:01,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:01,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:01,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:01,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:01,537 INFO L87 Difference]: Start difference. First operand 5131 states and 24369 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:01,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:01,737 INFO L93 Difference]: Finished difference Result 11703 states and 52396 transitions. [2022-03-15 15:30:01,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:01,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:01,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:01,776 INFO L225 Difference]: With dead ends: 11703 [2022-03-15 15:30:01,776 INFO L226 Difference]: Without dead ends: 11161 [2022-03-15 15:30:01,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:01,776 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:01,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 226 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:01,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11161 states. [2022-03-15 15:30:01,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11161 to 5295. [2022-03-15 15:30:01,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 4.732716282584057) internal successors, (25055), 5294 states have internal predecessors, (25055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:01,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 25055 transitions. [2022-03-15 15:30:01,963 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 25055 transitions. Word has length 29 [2022-03-15 15:30:01,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:01,963 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 25055 transitions. [2022-03-15 15:30:01,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:01,963 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 25055 transitions. [2022-03-15 15:30:01,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:01,977 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:01,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:01,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2022-03-15 15:30:01,977 INFO L402 AbstractCegarLoop]: === Iteration 433 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:01,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:01,977 INFO L85 PathProgramCache]: Analyzing trace with hash 769845831, now seen corresponding path program 428 times [2022-03-15 15:30:01,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:01,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043334418] [2022-03-15 15:30:01,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:01,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:02,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:02,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043334418] [2022-03-15 15:30:02,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043334418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:02,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:02,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:02,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916776869] [2022-03-15 15:30:02,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:02,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:02,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:02,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:02,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:02,135 INFO L87 Difference]: Start difference. First operand 5295 states and 25055 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:02,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:02,314 INFO L93 Difference]: Finished difference Result 11636 states and 52023 transitions. [2022-03-15 15:30:02,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:02,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:02,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:02,350 INFO L225 Difference]: With dead ends: 11636 [2022-03-15 15:30:02,351 INFO L226 Difference]: Without dead ends: 11051 [2022-03-15 15:30:02,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:02,351 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 172 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:02,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 196 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:02,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11051 states. [2022-03-15 15:30:02,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11051 to 5185. [2022-03-15 15:30:02,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.744598765432099) internal successors, (24596), 5184 states have internal predecessors, (24596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:02,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24596 transitions. [2022-03-15 15:30:02,511 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24596 transitions. Word has length 29 [2022-03-15 15:30:02,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:02,512 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24596 transitions. [2022-03-15 15:30:02,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:02,512 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24596 transitions. [2022-03-15 15:30:02,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:02,523 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:02,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:02,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2022-03-15 15:30:02,523 INFO L402 AbstractCegarLoop]: === Iteration 434 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:02,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:02,523 INFO L85 PathProgramCache]: Analyzing trace with hash 664000967, now seen corresponding path program 429 times [2022-03-15 15:30:02,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:02,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729828278] [2022-03-15 15:30:02,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:02,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:02,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:02,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:02,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729828278] [2022-03-15 15:30:02,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729828278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:02,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:02,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:02,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122905744] [2022-03-15 15:30:02,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:02,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:02,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:02,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:02,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:02,637 INFO L87 Difference]: Start difference. First operand 5185 states and 24596 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:02,806 INFO L93 Difference]: Finished difference Result 11697 states and 52323 transitions. [2022-03-15 15:30:02,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:02,806 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:02,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:02,846 INFO L225 Difference]: With dead ends: 11697 [2022-03-15 15:30:02,846 INFO L226 Difference]: Without dead ends: 11155 [2022-03-15 15:30:02,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:02,846 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 170 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:02,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 199 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:02,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11155 states. [2022-03-15 15:30:03,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11155 to 5293. [2022-03-15 15:30:03,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 4.723356009070295) internal successors, (24996), 5292 states have internal predecessors, (24996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:03,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 24996 transitions. [2022-03-15 15:30:03,033 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 24996 transitions. Word has length 29 [2022-03-15 15:30:03,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:03,033 INFO L470 AbstractCegarLoop]: Abstraction has 5293 states and 24996 transitions. [2022-03-15 15:30:03,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:03,033 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 24996 transitions. [2022-03-15 15:30:03,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:03,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:03,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:03,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2022-03-15 15:30:03,044 INFO L402 AbstractCegarLoop]: === Iteration 435 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:03,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:03,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1136115001, now seen corresponding path program 430 times [2022-03-15 15:30:03,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:03,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133119622] [2022-03-15 15:30:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:03,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:03,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:03,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:03,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133119622] [2022-03-15 15:30:03,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133119622] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:03,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:03,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:03,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944537079] [2022-03-15 15:30:03,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:03,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:03,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:03,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:03,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:03,163 INFO L87 Difference]: Start difference. First operand 5293 states and 24996 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:03,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:03,345 INFO L93 Difference]: Finished difference Result 11626 states and 51940 transitions. [2022-03-15 15:30:03,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:03,345 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:03,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:03,382 INFO L225 Difference]: With dead ends: 11626 [2022-03-15 15:30:03,382 INFO L226 Difference]: Without dead ends: 11047 [2022-03-15 15:30:03,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:03,382 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 162 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:03,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 221 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:03,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11047 states. [2022-03-15 15:30:03,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11047 to 5185. [2022-03-15 15:30:03,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.734182098765432) internal successors, (24542), 5184 states have internal predecessors, (24542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:03,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24542 transitions. [2022-03-15 15:30:03,548 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24542 transitions. Word has length 29 [2022-03-15 15:30:03,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:03,548 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24542 transitions. [2022-03-15 15:30:03,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:03,548 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24542 transitions. [2022-03-15 15:30:03,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:03,560 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:03,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:03,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2022-03-15 15:30:03,560 INFO L402 AbstractCegarLoop]: === Iteration 436 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:03,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:03,560 INFO L85 PathProgramCache]: Analyzing trace with hash 410168101, now seen corresponding path program 431 times [2022-03-15 15:30:03,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:03,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46083188] [2022-03-15 15:30:03,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:03,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:03,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:03,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46083188] [2022-03-15 15:30:03,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46083188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:03,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:03,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:03,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821811363] [2022-03-15 15:30:03,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:03,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:03,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:03,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:03,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:03,736 INFO L87 Difference]: Start difference. First operand 5185 states and 24542 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:03,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:03,941 INFO L93 Difference]: Finished difference Result 11531 states and 51599 transitions. [2022-03-15 15:30:03,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:03,941 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:03,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:03,980 INFO L225 Difference]: With dead ends: 11531 [2022-03-15 15:30:03,980 INFO L226 Difference]: Without dead ends: 11056 [2022-03-15 15:30:03,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:03,981 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 176 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:03,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 205 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:04,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2022-03-15 15:30:04,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5261. [2022-03-15 15:30:04,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.720532319391635) internal successors, (24830), 5260 states have internal predecessors, (24830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:04,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24830 transitions. [2022-03-15 15:30:04,130 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24830 transitions. Word has length 29 [2022-03-15 15:30:04,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:04,130 INFO L470 AbstractCegarLoop]: Abstraction has 5261 states and 24830 transitions. [2022-03-15 15:30:04,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:04,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24830 transitions. [2022-03-15 15:30:04,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:04,140 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:04,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:04,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2022-03-15 15:30:04,140 INFO L402 AbstractCegarLoop]: === Iteration 437 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:04,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:04,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1491230727, now seen corresponding path program 432 times [2022-03-15 15:30:04,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:04,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172490053] [2022-03-15 15:30:04,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:04,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:04,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:04,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:04,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172490053] [2022-03-15 15:30:04,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172490053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:04,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:04,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:04,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089543456] [2022-03-15 15:30:04,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:04,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:04,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:04,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:04,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:04,326 INFO L87 Difference]: Start difference. First operand 5261 states and 24830 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:04,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:04,572 INFO L93 Difference]: Finished difference Result 11527 states and 51511 transitions. [2022-03-15 15:30:04,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:04,573 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:04,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:04,611 INFO L225 Difference]: With dead ends: 11527 [2022-03-15 15:30:04,611 INFO L226 Difference]: Without dead ends: 10906 [2022-03-15 15:30:04,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:04,612 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:04,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 198 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:04,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2022-03-15 15:30:04,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 5111. [2022-03-15 15:30:04,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5111 states, 5110 states have (on average 4.7555772994129155) internal successors, (24301), 5110 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:04,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5111 states to 5111 states and 24301 transitions. [2022-03-15 15:30:04,785 INFO L78 Accepts]: Start accepts. Automaton has 5111 states and 24301 transitions. Word has length 29 [2022-03-15 15:30:04,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:04,785 INFO L470 AbstractCegarLoop]: Abstraction has 5111 states and 24301 transitions. [2022-03-15 15:30:04,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:04,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5111 states and 24301 transitions. [2022-03-15 15:30:04,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:04,795 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:04,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:04,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2022-03-15 15:30:04,795 INFO L402 AbstractCegarLoop]: === Iteration 438 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:04,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:04,795 INFO L85 PathProgramCache]: Analyzing trace with hash 856260353, now seen corresponding path program 433 times [2022-03-15 15:30:04,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:04,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38319739] [2022-03-15 15:30:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:04,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:04,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:04,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:04,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38319739] [2022-03-15 15:30:04,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38319739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:04,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:04,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:04,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984614804] [2022-03-15 15:30:04,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:04,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:04,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:04,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:04,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:04,956 INFO L87 Difference]: Start difference. First operand 5111 states and 24301 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:05,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:05,205 INFO L93 Difference]: Finished difference Result 10537 states and 47177 transitions. [2022-03-15 15:30:05,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:05,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:05,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:05,242 INFO L225 Difference]: With dead ends: 10537 [2022-03-15 15:30:05,243 INFO L226 Difference]: Without dead ends: 10122 [2022-03-15 15:30:05,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:05,243 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 152 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:05,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 259 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:30:05,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10122 states. [2022-03-15 15:30:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10122 to 5167. [2022-03-15 15:30:05,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.749709639953543) internal successors, (24537), 5166 states have internal predecessors, (24537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:05,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24537 transitions. [2022-03-15 15:30:05,409 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24537 transitions. Word has length 29 [2022-03-15 15:30:05,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:05,409 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24537 transitions. [2022-03-15 15:30:05,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:05,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24537 transitions. [2022-03-15 15:30:05,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:05,420 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:05,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:05,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2022-03-15 15:30:05,420 INFO L402 AbstractCegarLoop]: === Iteration 439 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:05,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:05,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1523726267, now seen corresponding path program 434 times [2022-03-15 15:30:05,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:05,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133482170] [2022-03-15 15:30:05,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:05,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:05,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:05,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:05,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133482170] [2022-03-15 15:30:05,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133482170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:05,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:05,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:05,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390024076] [2022-03-15 15:30:05,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:05,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:05,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:05,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:05,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:05,588 INFO L87 Difference]: Start difference. First operand 5167 states and 24537 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:05,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:05,787 INFO L93 Difference]: Finished difference Result 10537 states and 47145 transitions. [2022-03-15 15:30:05,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:05,788 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:05,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:05,824 INFO L225 Difference]: With dead ends: 10537 [2022-03-15 15:30:05,824 INFO L226 Difference]: Without dead ends: 10090 [2022-03-15 15:30:05,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:05,824 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 149 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:05,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 236 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:05,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10090 states. [2022-03-15 15:30:05,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10090 to 5135. [2022-03-15 15:30:05,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.754382547721075) internal successors, (24409), 5134 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24409 transitions. [2022-03-15 15:30:05,981 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24409 transitions. Word has length 29 [2022-03-15 15:30:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:05,981 INFO L470 AbstractCegarLoop]: Abstraction has 5135 states and 24409 transitions. [2022-03-15 15:30:05,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:05,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24409 transitions. [2022-03-15 15:30:06,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:06,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:06,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:06,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2022-03-15 15:30:06,028 INFO L402 AbstractCegarLoop]: === Iteration 440 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:06,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:06,028 INFO L85 PathProgramCache]: Analyzing trace with hash 375358307, now seen corresponding path program 435 times [2022-03-15 15:30:06,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:06,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681884442] [2022-03-15 15:30:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:06,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:06,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:06,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:06,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681884442] [2022-03-15 15:30:06,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681884442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:06,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:06,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:06,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15078607] [2022-03-15 15:30:06,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:06,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:06,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:06,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:06,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:06,140 INFO L87 Difference]: Start difference. First operand 5135 states and 24409 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:06,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:06,303 INFO L93 Difference]: Finished difference Result 10613 states and 47505 transitions. [2022-03-15 15:30:06,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:06,304 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:06,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:06,332 INFO L225 Difference]: With dead ends: 10613 [2022-03-15 15:30:06,332 INFO L226 Difference]: Without dead ends: 10198 [2022-03-15 15:30:06,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:06,332 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 162 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:06,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 225 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:06,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states. [2022-03-15 15:30:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 5183. [2022-03-15 15:30:06,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.744307217290621) internal successors, (24585), 5182 states have internal predecessors, (24585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24585 transitions. [2022-03-15 15:30:06,457 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24585 transitions. Word has length 29 [2022-03-15 15:30:06,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:06,457 INFO L470 AbstractCegarLoop]: Abstraction has 5183 states and 24585 transitions. [2022-03-15 15:30:06,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:06,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24585 transitions. [2022-03-15 15:30:06,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:06,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:06,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:06,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2022-03-15 15:30:06,467 INFO L402 AbstractCegarLoop]: === Iteration 441 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:06,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:06,467 INFO L85 PathProgramCache]: Analyzing trace with hash -2108136861, now seen corresponding path program 436 times [2022-03-15 15:30:06,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:06,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780764961] [2022-03-15 15:30:06,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:06,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:06,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:06,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:06,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780764961] [2022-03-15 15:30:06,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780764961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:06,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:06,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:06,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182959940] [2022-03-15 15:30:06,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:06,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:06,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:06,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:06,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:06,574 INFO L87 Difference]: Start difference. First operand 5183 states and 24585 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:06,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:06,783 INFO L93 Difference]: Finished difference Result 10673 states and 47721 transitions. [2022-03-15 15:30:06,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:06,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:06,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:06,816 INFO L225 Difference]: With dead ends: 10673 [2022-03-15 15:30:06,816 INFO L226 Difference]: Without dead ends: 10150 [2022-03-15 15:30:06,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:06,816 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 173 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:06,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 212 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:06,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10150 states. [2022-03-15 15:30:06,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10150 to 5135. [2022-03-15 15:30:06,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.751266069341644) internal successors, (24393), 5134 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:06,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24393 transitions. [2022-03-15 15:30:06,944 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24393 transitions. Word has length 29 [2022-03-15 15:30:06,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:06,944 INFO L470 AbstractCegarLoop]: Abstraction has 5135 states and 24393 transitions. [2022-03-15 15:30:06,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:06,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24393 transitions. [2022-03-15 15:30:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:06,954 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:06,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:06,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2022-03-15 15:30:06,954 INFO L402 AbstractCegarLoop]: === Iteration 442 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:06,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:06,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1393030203, now seen corresponding path program 437 times [2022-03-15 15:30:06,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:06,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68423601] [2022-03-15 15:30:06,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:06,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:07,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:07,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:07,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68423601] [2022-03-15 15:30:07,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68423601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:07,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:07,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:07,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213141296] [2022-03-15 15:30:07,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:07,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:07,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:07,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:07,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:07,119 INFO L87 Difference]: Start difference. First operand 5135 states and 24393 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:07,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:07,271 INFO L93 Difference]: Finished difference Result 10613 states and 47489 transitions. [2022-03-15 15:30:07,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:07,271 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:07,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:07,301 INFO L225 Difference]: With dead ends: 10613 [2022-03-15 15:30:07,301 INFO L226 Difference]: Without dead ends: 10198 [2022-03-15 15:30:07,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:07,301 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:07,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 212 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:07,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states. [2022-03-15 15:30:07,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 5183. [2022-03-15 15:30:07,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.741219606329603) internal successors, (24569), 5182 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:07,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24569 transitions. [2022-03-15 15:30:07,433 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24569 transitions. Word has length 29 [2022-03-15 15:30:07,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:07,433 INFO L470 AbstractCegarLoop]: Abstraction has 5183 states and 24569 transitions. [2022-03-15 15:30:07,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:07,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24569 transitions. [2022-03-15 15:30:07,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:07,443 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:07,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:07,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2022-03-15 15:30:07,444 INFO L402 AbstractCegarLoop]: === Iteration 443 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:07,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:07,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1820874467, now seen corresponding path program 438 times [2022-03-15 15:30:07,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:07,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739147472] [2022-03-15 15:30:07,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:07,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:07,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:07,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:07,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739147472] [2022-03-15 15:30:07,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739147472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:07,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:07,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:07,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570056997] [2022-03-15 15:30:07,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:07,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:07,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:07,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:07,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:07,553 INFO L87 Difference]: Start difference. First operand 5183 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:07,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:07,736 INFO L93 Difference]: Finished difference Result 10673 states and 47705 transitions. [2022-03-15 15:30:07,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:07,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:07,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:07,766 INFO L225 Difference]: With dead ends: 10673 [2022-03-15 15:30:07,767 INFO L226 Difference]: Without dead ends: 10134 [2022-03-15 15:30:07,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:07,767 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 145 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:07,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 259 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:07,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10134 states. [2022-03-15 15:30:07,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10134 to 5119. [2022-03-15 15:30:07,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.755177803829621) internal successors, (24337), 5118 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24337 transitions. [2022-03-15 15:30:07,898 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24337 transitions. Word has length 29 [2022-03-15 15:30:07,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:07,898 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24337 transitions. [2022-03-15 15:30:07,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:07,898 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24337 transitions. [2022-03-15 15:30:07,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:07,907 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:07,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:07,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2022-03-15 15:30:07,907 INFO L402 AbstractCegarLoop]: === Iteration 444 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:07,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:07,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1729105181, now seen corresponding path program 439 times [2022-03-15 15:30:07,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:07,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642817611] [2022-03-15 15:30:07,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:07,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:08,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:08,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:08,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642817611] [2022-03-15 15:30:08,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642817611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:08,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:08,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:08,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82968727] [2022-03-15 15:30:08,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:08,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:08,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:08,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:08,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:08,018 INFO L87 Difference]: Start difference. First operand 5119 states and 24337 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:08,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:08,171 INFO L93 Difference]: Finished difference Result 10533 states and 47157 transitions. [2022-03-15 15:30:08,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:08,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:08,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:08,201 INFO L225 Difference]: With dead ends: 10533 [2022-03-15 15:30:08,201 INFO L226 Difference]: Without dead ends: 10118 [2022-03-15 15:30:08,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:08,201 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 182 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:08,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 198 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:08,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10118 states. [2022-03-15 15:30:08,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10118 to 5167. [2022-03-15 15:30:08,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.748161053039102) internal successors, (24529), 5166 states have internal predecessors, (24529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:08,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24529 transitions. [2022-03-15 15:30:08,332 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24529 transitions. Word has length 29 [2022-03-15 15:30:08,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:08,332 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24529 transitions. [2022-03-15 15:30:08,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:08,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24529 transitions. [2022-03-15 15:30:08,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:08,343 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:08,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:08,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2022-03-15 15:30:08,343 INFO L402 AbstractCegarLoop]: === Iteration 445 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:08,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:08,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1061639267, now seen corresponding path program 440 times [2022-03-15 15:30:08,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:08,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418969007] [2022-03-15 15:30:08,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:08,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:08,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:08,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418969007] [2022-03-15 15:30:08,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418969007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:08,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:08,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:08,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4476746] [2022-03-15 15:30:08,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:08,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:08,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:08,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:08,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:08,491 INFO L87 Difference]: Start difference. First operand 5167 states and 24529 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:08,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:08,753 INFO L93 Difference]: Finished difference Result 10533 states and 47125 transitions. [2022-03-15 15:30:08,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:08,753 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:08,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:08,793 INFO L225 Difference]: With dead ends: 10533 [2022-03-15 15:30:08,793 INFO L226 Difference]: Without dead ends: 10086 [2022-03-15 15:30:08,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:08,793 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:08,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 214 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:30:08,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10086 states. [2022-03-15 15:30:08,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10086 to 5135. [2022-03-15 15:30:08,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.75282430853136) internal successors, (24401), 5134 states have internal predecessors, (24401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:08,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24401 transitions. [2022-03-15 15:30:08,990 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24401 transitions. Word has length 29 [2022-03-15 15:30:08,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:08,990 INFO L470 AbstractCegarLoop]: Abstraction has 5135 states and 24401 transitions. [2022-03-15 15:30:08,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:08,990 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24401 transitions. [2022-03-15 15:30:09,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:09,001 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:09,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:09,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2022-03-15 15:30:09,001 INFO L402 AbstractCegarLoop]: === Iteration 446 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:09,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:09,002 INFO L85 PathProgramCache]: Analyzing trace with hash -636134685, now seen corresponding path program 441 times [2022-03-15 15:30:09,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:09,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968258811] [2022-03-15 15:30:09,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:09,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:09,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:09,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:09,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968258811] [2022-03-15 15:30:09,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968258811] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:09,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:09,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:09,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850415562] [2022-03-15 15:30:09,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:09,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:09,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:09,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:09,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:09,252 INFO L87 Difference]: Start difference. First operand 5135 states and 24401 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:09,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:09,479 INFO L93 Difference]: Finished difference Result 10605 states and 47473 transitions. [2022-03-15 15:30:09,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:09,479 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:09,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:09,512 INFO L225 Difference]: With dead ends: 10605 [2022-03-15 15:30:09,512 INFO L226 Difference]: Without dead ends: 10190 [2022-03-15 15:30:09,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:09,512 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 173 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:09,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 206 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:09,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10190 states. [2022-03-15 15:30:09,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10190 to 5183. [2022-03-15 15:30:09,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.742763411810112) internal successors, (24577), 5182 states have internal predecessors, (24577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:09,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24577 transitions. [2022-03-15 15:30:09,659 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24577 transitions. Word has length 29 [2022-03-15 15:30:09,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:09,659 INFO L470 AbstractCegarLoop]: Abstraction has 5183 states and 24577 transitions. [2022-03-15 15:30:09,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:09,659 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24577 transitions. [2022-03-15 15:30:09,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:09,669 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:09,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:09,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2022-03-15 15:30:09,669 INFO L402 AbstractCegarLoop]: === Iteration 447 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:09,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:09,669 INFO L85 PathProgramCache]: Analyzing trace with hash -709617181, now seen corresponding path program 442 times [2022-03-15 15:30:09,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:09,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138105326] [2022-03-15 15:30:09,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:09,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:09,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:09,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138105326] [2022-03-15 15:30:09,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138105326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:09,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:09,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:09,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236643989] [2022-03-15 15:30:09,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:09,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:09,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:09,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:09,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:09,836 INFO L87 Difference]: Start difference. First operand 5183 states and 24577 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:10,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:10,035 INFO L93 Difference]: Finished difference Result 10661 states and 47677 transitions. [2022-03-15 15:30:10,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:10,035 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:10,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:10,066 INFO L225 Difference]: With dead ends: 10661 [2022-03-15 15:30:10,066 INFO L226 Difference]: Without dead ends: 10142 [2022-03-15 15:30:10,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:10,067 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 168 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:10,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 201 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:10,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10142 states. [2022-03-15 15:30:10,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10142 to 5135. [2022-03-15 15:30:10,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5135 states, 5134 states have (on average 4.749707830151928) internal successors, (24385), 5134 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:10,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 24385 transitions. [2022-03-15 15:30:10,201 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 24385 transitions. Word has length 29 [2022-03-15 15:30:10,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:10,201 INFO L470 AbstractCegarLoop]: Abstraction has 5135 states and 24385 transitions. [2022-03-15 15:30:10,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:10,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 24385 transitions. [2022-03-15 15:30:10,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:10,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:10,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:10,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2022-03-15 15:30:10,210 INFO L402 AbstractCegarLoop]: === Iteration 448 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:10,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:10,210 INFO L85 PathProgramCache]: Analyzing trace with hash -887745477, now seen corresponding path program 443 times [2022-03-15 15:30:10,211 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:10,211 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550901561] [2022-03-15 15:30:10,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:10,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:10,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:10,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:10,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550901561] [2022-03-15 15:30:10,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550901561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:10,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:10,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:10,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915174682] [2022-03-15 15:30:10,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:10,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:10,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:10,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:10,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:10,387 INFO L87 Difference]: Start difference. First operand 5135 states and 24385 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:10,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:10,580 INFO L93 Difference]: Finished difference Result 10605 states and 47457 transitions. [2022-03-15 15:30:10,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:10,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:10,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:10,610 INFO L225 Difference]: With dead ends: 10605 [2022-03-15 15:30:10,610 INFO L226 Difference]: Without dead ends: 10190 [2022-03-15 15:30:10,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:10,611 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 152 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:10,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 249 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:10,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10190 states. [2022-03-15 15:30:10,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10190 to 5183. [2022-03-15 15:30:10,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.739675800849093) internal successors, (24561), 5182 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:10,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24561 transitions. [2022-03-15 15:30:10,744 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24561 transitions. Word has length 29 [2022-03-15 15:30:10,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:10,744 INFO L470 AbstractCegarLoop]: Abstraction has 5183 states and 24561 transitions. [2022-03-15 15:30:10,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:10,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24561 transitions. [2022-03-15 15:30:10,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:10,754 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:10,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:10,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2022-03-15 15:30:10,754 INFO L402 AbstractCegarLoop]: === Iteration 449 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:10,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:10,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1094553443, now seen corresponding path program 444 times [2022-03-15 15:30:10,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:10,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361044426] [2022-03-15 15:30:10,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:10,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:10,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:10,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:10,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361044426] [2022-03-15 15:30:10,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361044426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:10,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:10,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:10,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772743236] [2022-03-15 15:30:10,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:10,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:10,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:10,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:10,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:10,880 INFO L87 Difference]: Start difference. First operand 5183 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:11,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:11,034 INFO L93 Difference]: Finished difference Result 10661 states and 47661 transitions. [2022-03-15 15:30:11,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:11,034 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:11,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:11,064 INFO L225 Difference]: With dead ends: 10661 [2022-03-15 15:30:11,064 INFO L226 Difference]: Without dead ends: 10126 [2022-03-15 15:30:11,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:11,065 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:11,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 199 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:11,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10126 states. [2022-03-15 15:30:11,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10126 to 5119. [2022-03-15 15:30:11,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.753614693239546) internal successors, (24329), 5118 states have internal predecessors, (24329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:11,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24329 transitions. [2022-03-15 15:30:11,199 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24329 transitions. Word has length 29 [2022-03-15 15:30:11,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:11,199 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24329 transitions. [2022-03-15 15:30:11,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:11,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24329 transitions. [2022-03-15 15:30:11,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:11,209 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:11,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:11,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2022-03-15 15:30:11,209 INFO L402 AbstractCegarLoop]: === Iteration 450 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:11,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:11,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1776475845, now seen corresponding path program 445 times [2022-03-15 15:30:11,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:11,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881101583] [2022-03-15 15:30:11,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:11,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:11,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:11,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881101583] [2022-03-15 15:30:11,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881101583] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:11,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:11,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:11,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320303646] [2022-03-15 15:30:11,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:11,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:11,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:11,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:11,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:11,322 INFO L87 Difference]: Start difference. First operand 5119 states and 24329 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:11,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:11,481 INFO L93 Difference]: Finished difference Result 10721 states and 48021 transitions. [2022-03-15 15:30:11,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:11,481 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:11,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:11,514 INFO L225 Difference]: With dead ends: 10721 [2022-03-15 15:30:11,515 INFO L226 Difference]: Without dead ends: 10306 [2022-03-15 15:30:11,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:11,515 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:11,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 207 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:11,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2022-03-15 15:30:11,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 5191. [2022-03-15 15:30:11,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.745472061657033) internal successors, (24629), 5190 states have internal predecessors, (24629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:11,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24629 transitions. [2022-03-15 15:30:11,645 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24629 transitions. Word has length 29 [2022-03-15 15:30:11,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:11,645 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24629 transitions. [2022-03-15 15:30:11,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:11,646 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24629 transitions. [2022-03-15 15:30:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:11,655 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:11,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:11,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2022-03-15 15:30:11,655 INFO L402 AbstractCegarLoop]: === Iteration 451 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:11,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:11,655 INFO L85 PathProgramCache]: Analyzing trace with hash -707019323, now seen corresponding path program 446 times [2022-03-15 15:30:11,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:11,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354749231] [2022-03-15 15:30:11,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:11,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:11,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:11,769 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:11,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354749231] [2022-03-15 15:30:11,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354749231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:11,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:11,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:11,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751752148] [2022-03-15 15:30:11,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:11,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:11,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:11,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:11,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:11,770 INFO L87 Difference]: Start difference. First operand 5191 states and 24629 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:11,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:11,953 INFO L93 Difference]: Finished difference Result 10781 states and 48237 transitions. [2022-03-15 15:30:11,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:11,953 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:11,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:11,983 INFO L225 Difference]: With dead ends: 10781 [2022-03-15 15:30:11,983 INFO L226 Difference]: Without dead ends: 10258 [2022-03-15 15:30:11,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:11,983 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:11,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 236 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:11,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10258 states. [2022-03-15 15:30:12,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10258 to 5143. [2022-03-15 15:30:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.750875145857643) internal successors, (24429), 5142 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:12,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24429 transitions. [2022-03-15 15:30:12,114 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24429 transitions. Word has length 29 [2022-03-15 15:30:12,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:12,114 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24429 transitions. [2022-03-15 15:30:12,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:12,114 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24429 transitions. [2022-03-15 15:30:12,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:12,124 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:12,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:12,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2022-03-15 15:30:12,124 INFO L402 AbstractCegarLoop]: === Iteration 452 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:12,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:12,124 INFO L85 PathProgramCache]: Analyzing trace with hash -246585693, now seen corresponding path program 447 times [2022-03-15 15:30:12,124 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:12,124 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534652146] [2022-03-15 15:30:12,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:12,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:12,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:12,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:12,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534652146] [2022-03-15 15:30:12,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534652146] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:12,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:12,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:12,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424148759] [2022-03-15 15:30:12,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:12,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:12,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:12,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:12,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:12,271 INFO L87 Difference]: Start difference. First operand 5143 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:12,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:12,458 INFO L93 Difference]: Finished difference Result 10717 states and 47985 transitions. [2022-03-15 15:30:12,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:12,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:12,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:12,489 INFO L225 Difference]: With dead ends: 10717 [2022-03-15 15:30:12,489 INFO L226 Difference]: Without dead ends: 10302 [2022-03-15 15:30:12,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:12,490 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 175 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:12,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 207 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:12,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10302 states. [2022-03-15 15:30:12,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10302 to 5191. [2022-03-15 15:30:12,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.740847784200385) internal successors, (24605), 5190 states have internal predecessors, (24605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:12,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24605 transitions. [2022-03-15 15:30:12,618 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24605 transitions. Word has length 29 [2022-03-15 15:30:12,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:12,619 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24605 transitions. [2022-03-15 15:30:12,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:12,619 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24605 transitions. [2022-03-15 15:30:12,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:12,628 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:12,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:12,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2022-03-15 15:30:12,628 INFO L402 AbstractCegarLoop]: === Iteration 453 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:12,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:12,629 INFO L85 PathProgramCache]: Analyzing trace with hash 999984581, now seen corresponding path program 448 times [2022-03-15 15:30:12,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:12,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580517994] [2022-03-15 15:30:12,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:12,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:12,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:12,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:12,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580517994] [2022-03-15 15:30:12,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580517994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:12,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:12,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:12,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387687506] [2022-03-15 15:30:12,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:12,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:12,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:12,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:12,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:12,803 INFO L87 Difference]: Start difference. First operand 5191 states and 24605 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:13,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:13,044 INFO L93 Difference]: Finished difference Result 10773 states and 48189 transitions. [2022-03-15 15:30:13,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:13,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:13,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:13,074 INFO L225 Difference]: With dead ends: 10773 [2022-03-15 15:30:13,074 INFO L226 Difference]: Without dead ends: 10254 [2022-03-15 15:30:13,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:13,074 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:13,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 212 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:30:13,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10254 states. [2022-03-15 15:30:13,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10254 to 5143. [2022-03-15 15:30:13,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.746207701283547) internal successors, (24405), 5142 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:13,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24405 transitions. [2022-03-15 15:30:13,200 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24405 transitions. Word has length 29 [2022-03-15 15:30:13,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:13,200 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24405 transitions. [2022-03-15 15:30:13,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:13,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24405 transitions. [2022-03-15 15:30:13,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:13,209 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:13,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:13,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2022-03-15 15:30:13,209 INFO L402 AbstractCegarLoop]: === Iteration 454 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:13,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:13,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1690746053, now seen corresponding path program 449 times [2022-03-15 15:30:13,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:13,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112362502] [2022-03-15 15:30:13,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:13,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:13,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:13,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:13,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112362502] [2022-03-15 15:30:13,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112362502] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:13,364 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:13,364 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:13,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945585757] [2022-03-15 15:30:13,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:13,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:13,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:13,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:13,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:13,365 INFO L87 Difference]: Start difference. First operand 5143 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:13,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:13,577 INFO L93 Difference]: Finished difference Result 10865 states and 48629 transitions. [2022-03-15 15:30:13,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:13,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:13,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:13,608 INFO L225 Difference]: With dead ends: 10865 [2022-03-15 15:30:13,608 INFO L226 Difference]: Without dead ends: 10390 [2022-03-15 15:30:13,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:13,609 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 152 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:13,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 224 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:13,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10390 states. [2022-03-15 15:30:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10390 to 5219. [2022-03-15 15:30:13,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.7322729014948255) internal successors, (24693), 5218 states have internal predecessors, (24693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:13,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24693 transitions. [2022-03-15 15:30:13,751 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24693 transitions. Word has length 29 [2022-03-15 15:30:13,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:13,752 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24693 transitions. [2022-03-15 15:30:13,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:13,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24693 transitions. [2022-03-15 15:30:13,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:13,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:13,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:13,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2022-03-15 15:30:13,762 INFO L402 AbstractCegarLoop]: === Iteration 455 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:13,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:13,762 INFO L85 PathProgramCache]: Analyzing trace with hash -352590941, now seen corresponding path program 450 times [2022-03-15 15:30:13,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:13,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063370] [2022-03-15 15:30:13,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:13,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:13,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:13,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:13,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063370] [2022-03-15 15:30:13,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:13,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:13,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:13,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767440457] [2022-03-15 15:30:13,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:13,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:13,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:13,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:13,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:13,866 INFO L87 Difference]: Start difference. First operand 5219 states and 24693 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:14,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:14,027 INFO L93 Difference]: Finished difference Result 10861 states and 48541 transitions. [2022-03-15 15:30:14,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:14,028 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:14,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:14,060 INFO L225 Difference]: With dead ends: 10861 [2022-03-15 15:30:14,060 INFO L226 Difference]: Without dead ends: 10290 [2022-03-15 15:30:14,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:14,060 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 153 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:14,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 207 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:14,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10290 states. [2022-03-15 15:30:14,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10290 to 5119. [2022-03-15 15:30:14,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.7520515826494725) internal successors, (24321), 5118 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:14,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24321 transitions. [2022-03-15 15:30:14,209 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24321 transitions. Word has length 29 [2022-03-15 15:30:14,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:14,209 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24321 transitions. [2022-03-15 15:30:14,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:14,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24321 transitions. [2022-03-15 15:30:14,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:14,220 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:14,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:14,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2022-03-15 15:30:14,220 INFO L402 AbstractCegarLoop]: === Iteration 456 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:14,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:14,220 INFO L85 PathProgramCache]: Analyzing trace with hash 29728955, now seen corresponding path program 451 times [2022-03-15 15:30:14,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:14,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493377854] [2022-03-15 15:30:14,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:14,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:14,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:14,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:14,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493377854] [2022-03-15 15:30:14,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493377854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:14,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:14,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:14,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140821465] [2022-03-15 15:30:14,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:14,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:14,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:14,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:14,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:14,326 INFO L87 Difference]: Start difference. First operand 5119 states and 24321 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:14,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:14,474 INFO L93 Difference]: Finished difference Result 10721 states and 48013 transitions. [2022-03-15 15:30:14,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:14,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:14,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:14,505 INFO L225 Difference]: With dead ends: 10721 [2022-03-15 15:30:14,505 INFO L226 Difference]: Without dead ends: 10306 [2022-03-15 15:30:14,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:14,505 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 160 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:14,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 217 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:14,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2022-03-15 15:30:14,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 5191. [2022-03-15 15:30:14,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.74393063583815) internal successors, (24621), 5190 states have internal predecessors, (24621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:14,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24621 transitions. [2022-03-15 15:30:14,650 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24621 transitions. Word has length 29 [2022-03-15 15:30:14,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:14,650 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24621 transitions. [2022-03-15 15:30:14,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:14,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24621 transitions. [2022-03-15 15:30:14,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:14,660 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:14,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:14,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2022-03-15 15:30:14,660 INFO L402 AbstractCegarLoop]: === Iteration 457 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:14,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:14,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1110791581, now seen corresponding path program 452 times [2022-03-15 15:30:14,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:14,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946934914] [2022-03-15 15:30:14,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:14,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:14,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:14,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946934914] [2022-03-15 15:30:14,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946934914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:14,768 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:14,768 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:14,768 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950458782] [2022-03-15 15:30:14,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:14,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:14,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:14,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:14,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:14,769 INFO L87 Difference]: Start difference. First operand 5191 states and 24621 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:14,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:14,925 INFO L93 Difference]: Finished difference Result 10781 states and 48229 transitions. [2022-03-15 15:30:14,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:14,926 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:14,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:14,959 INFO L225 Difference]: With dead ends: 10781 [2022-03-15 15:30:14,959 INFO L226 Difference]: Without dead ends: 10258 [2022-03-15 15:30:14,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:14,959 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 167 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:14,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 205 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:14,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10258 states. [2022-03-15 15:30:15,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10258 to 5143. [2022-03-15 15:30:15,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.749319330999611) internal successors, (24421), 5142 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:15,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24421 transitions. [2022-03-15 15:30:15,095 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24421 transitions. Word has length 29 [2022-03-15 15:30:15,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:15,095 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24421 transitions. [2022-03-15 15:30:15,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24421 transitions. [2022-03-15 15:30:15,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:15,105 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:15,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:15,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2022-03-15 15:30:15,105 INFO L402 AbstractCegarLoop]: === Iteration 458 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:15,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:15,106 INFO L85 PathProgramCache]: Analyzing trace with hash -451173091, now seen corresponding path program 453 times [2022-03-15 15:30:15,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:15,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270380591] [2022-03-15 15:30:15,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:15,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:15,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:15,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:15,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270380591] [2022-03-15 15:30:15,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270380591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:15,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:15,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:15,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247743408] [2022-03-15 15:30:15,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:15,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:15,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:15,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:15,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:15,216 INFO L87 Difference]: Start difference. First operand 5143 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:15,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:15,360 INFO L93 Difference]: Finished difference Result 10717 states and 47977 transitions. [2022-03-15 15:30:15,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:15,360 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:15,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:15,390 INFO L225 Difference]: With dead ends: 10717 [2022-03-15 15:30:15,390 INFO L226 Difference]: Without dead ends: 10302 [2022-03-15 15:30:15,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:15,390 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 179 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:15,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 210 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:15,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10302 states. [2022-03-15 15:30:15,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10302 to 5191. [2022-03-15 15:30:15,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.739306358381503) internal successors, (24597), 5190 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:15,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24597 transitions. [2022-03-15 15:30:15,520 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24597 transitions. Word has length 29 [2022-03-15 15:30:15,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:15,520 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24597 transitions. [2022-03-15 15:30:15,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:15,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24597 transitions. [2022-03-15 15:30:15,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:15,530 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:15,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:15,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2022-03-15 15:30:15,530 INFO L402 AbstractCegarLoop]: === Iteration 459 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:15,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:15,531 INFO L85 PathProgramCache]: Analyzing trace with hash -2139419363, now seen corresponding path program 454 times [2022-03-15 15:30:15,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:15,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817244200] [2022-03-15 15:30:15,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:15,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:15,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:15,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817244200] [2022-03-15 15:30:15,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817244200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:15,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:15,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:15,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118529610] [2022-03-15 15:30:15,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:15,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:15,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:15,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:15,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:15,650 INFO L87 Difference]: Start difference. First operand 5191 states and 24597 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:15,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:15,881 INFO L93 Difference]: Finished difference Result 10773 states and 48181 transitions. [2022-03-15 15:30:15,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:15,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:15,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:15,912 INFO L225 Difference]: With dead ends: 10773 [2022-03-15 15:30:15,912 INFO L226 Difference]: Without dead ends: 10254 [2022-03-15 15:30:15,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:15,913 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 140 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:15,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 252 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:15,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10254 states. [2022-03-15 15:30:16,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10254 to 5143. [2022-03-15 15:30:16,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.744651886425515) internal successors, (24397), 5142 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:16,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24397 transitions. [2022-03-15 15:30:16,049 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24397 transitions. Word has length 29 [2022-03-15 15:30:16,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:16,049 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24397 transitions. [2022-03-15 15:30:16,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:16,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24397 transitions. [2022-03-15 15:30:16,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:16,059 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:16,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:16,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2022-03-15 15:30:16,059 INFO L402 AbstractCegarLoop]: === Iteration 460 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:16,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:16,059 INFO L85 PathProgramCache]: Analyzing trace with hash -63168129, now seen corresponding path program 455 times [2022-03-15 15:30:16,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:16,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774604794] [2022-03-15 15:30:16,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:16,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:16,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:16,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:16,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774604794] [2022-03-15 15:30:16,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774604794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:16,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:16,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:16,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286474911] [2022-03-15 15:30:16,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:16,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:16,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:16,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:16,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:16,225 INFO L87 Difference]: Start difference. First operand 5143 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:16,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:16,414 INFO L93 Difference]: Finished difference Result 10865 states and 48621 transitions. [2022-03-15 15:30:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:16,415 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:16,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:16,444 INFO L225 Difference]: With dead ends: 10865 [2022-03-15 15:30:16,444 INFO L226 Difference]: Without dead ends: 10390 [2022-03-15 15:30:16,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:16,444 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 173 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:16,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 199 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:16,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10390 states. [2022-03-15 15:30:16,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10390 to 5219. [2022-03-15 15:30:16,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.730739747029514) internal successors, (24685), 5218 states have internal predecessors, (24685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24685 transitions. [2022-03-15 15:30:16,576 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24685 transitions. Word has length 29 [2022-03-15 15:30:16,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:16,576 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24685 transitions. [2022-03-15 15:30:16,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:16,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24685 transitions. [2022-03-15 15:30:16,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:16,586 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:16,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:16,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2022-03-15 15:30:16,586 INFO L402 AbstractCegarLoop]: === Iteration 461 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:16,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:16,586 INFO L85 PathProgramCache]: Analyzing trace with hash -909965091, now seen corresponding path program 456 times [2022-03-15 15:30:16,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:16,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412599373] [2022-03-15 15:30:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:16,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:16,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:16,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:16,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412599373] [2022-03-15 15:30:16,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412599373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:16,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:16,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:16,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028723861] [2022-03-15 15:30:16,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:16,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:16,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:16,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:16,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:16,702 INFO L87 Difference]: Start difference. First operand 5219 states and 24685 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:16,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:16,878 INFO L93 Difference]: Finished difference Result 10861 states and 48533 transitions. [2022-03-15 15:30:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:16,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:16,908 INFO L225 Difference]: With dead ends: 10861 [2022-03-15 15:30:16,908 INFO L226 Difference]: Without dead ends: 10282 [2022-03-15 15:30:16,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:16,908 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 145 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:16,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 220 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:16,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10282 states. [2022-03-15 15:30:17,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10282 to 5111. [2022-03-15 15:30:17,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5111 states, 5110 states have (on average 4.754794520547946) internal successors, (24297), 5110 states have internal predecessors, (24297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5111 states to 5111 states and 24297 transitions. [2022-03-15 15:30:17,052 INFO L78 Accepts]: Start accepts. Automaton has 5111 states and 24297 transitions. Word has length 29 [2022-03-15 15:30:17,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:17,053 INFO L470 AbstractCegarLoop]: Abstraction has 5111 states and 24297 transitions. [2022-03-15 15:30:17,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:17,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5111 states and 24297 transitions. [2022-03-15 15:30:17,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:17,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:17,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:17,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2022-03-15 15:30:17,063 INFO L402 AbstractCegarLoop]: === Iteration 462 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:17,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:17,063 INFO L85 PathProgramCache]: Analyzing trace with hash -2052129445, now seen corresponding path program 457 times [2022-03-15 15:30:17,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:17,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927500764] [2022-03-15 15:30:17,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:17,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:17,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:17,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927500764] [2022-03-15 15:30:17,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927500764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:17,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:17,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:17,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990406713] [2022-03-15 15:30:17,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:17,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:17,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:17,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:17,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:17,180 INFO L87 Difference]: Start difference. First operand 5111 states and 24297 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:17,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:17,331 INFO L93 Difference]: Finished difference Result 11487 states and 51416 transitions. [2022-03-15 15:30:17,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:17,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:17,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:17,362 INFO L225 Difference]: With dead ends: 11487 [2022-03-15 15:30:17,362 INFO L226 Difference]: Without dead ends: 10945 [2022-03-15 15:30:17,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:17,362 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 194 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:17,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 189 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10945 states. [2022-03-15 15:30:17,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10945 to 5251. [2022-03-15 15:30:17,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.743047619047619) internal successors, (24901), 5250 states have internal predecessors, (24901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:17,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24901 transitions. [2022-03-15 15:30:17,512 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24901 transitions. Word has length 29 [2022-03-15 15:30:17,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:17,512 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24901 transitions. [2022-03-15 15:30:17,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:17,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24901 transitions. [2022-03-15 15:30:17,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:17,522 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:17,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:17,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2022-03-15 15:30:17,522 INFO L402 AbstractCegarLoop]: === Iteration 463 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:17,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:17,522 INFO L85 PathProgramCache]: Analyzing trace with hash 2036029885, now seen corresponding path program 458 times [2022-03-15 15:30:17,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:17,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278792276] [2022-03-15 15:30:17,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:17,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:17,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:17,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:17,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278792276] [2022-03-15 15:30:17,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278792276] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:17,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:17,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:17,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476193908] [2022-03-15 15:30:17,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:17,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:17,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:17,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:17,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:17,642 INFO L87 Difference]: Start difference. First operand 5251 states and 24901 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:17,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:17,787 INFO L93 Difference]: Finished difference Result 11360 states and 50809 transitions. [2022-03-15 15:30:17,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:17,787 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:17,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:17,821 INFO L225 Difference]: With dead ends: 11360 [2022-03-15 15:30:17,821 INFO L226 Difference]: Without dead ends: 10865 [2022-03-15 15:30:17,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:17,821 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 195 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:17,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 185 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:17,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10865 states. [2022-03-15 15:30:17,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10865 to 5171. [2022-03-15 15:30:17,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.752998065764023) internal successors, (24573), 5170 states have internal predecessors, (24573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:17,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24573 transitions. [2022-03-15 15:30:17,960 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24573 transitions. Word has length 29 [2022-03-15 15:30:17,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:17,960 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24573 transitions. [2022-03-15 15:30:17,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:17,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24573 transitions. [2022-03-15 15:30:17,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:17,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:17,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:17,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2022-03-15 15:30:17,970 INFO L402 AbstractCegarLoop]: === Iteration 464 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:17,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:17,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1761935805, now seen corresponding path program 459 times [2022-03-15 15:30:17,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:17,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114411402] [2022-03-15 15:30:17,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:17,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:18,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:18,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:18,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114411402] [2022-03-15 15:30:18,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114411402] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:18,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:18,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:18,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097925243] [2022-03-15 15:30:18,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:18,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:18,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:18,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:18,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:18,086 INFO L87 Difference]: Start difference. First operand 5171 states and 24573 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:18,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:18,235 INFO L93 Difference]: Finished difference Result 11577 states and 51787 transitions. [2022-03-15 15:30:18,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:18,235 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:18,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:18,267 INFO L225 Difference]: With dead ends: 11577 [2022-03-15 15:30:18,268 INFO L226 Difference]: Without dead ends: 11035 [2022-03-15 15:30:18,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:18,268 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 171 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:18,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 202 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:18,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11035 states. [2022-03-15 15:30:18,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11035 to 5281. [2022-03-15 15:30:18,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 4.730681818181818) internal successors, (24978), 5280 states have internal predecessors, (24978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:18,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 24978 transitions. [2022-03-15 15:30:18,408 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 24978 transitions. Word has length 29 [2022-03-15 15:30:18,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:18,408 INFO L470 AbstractCegarLoop]: Abstraction has 5281 states and 24978 transitions. [2022-03-15 15:30:18,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:18,408 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 24978 transitions. [2022-03-15 15:30:18,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:18,418 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:18,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:18,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2022-03-15 15:30:18,418 INFO L402 AbstractCegarLoop]: === Iteration 465 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:18,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:18,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1214181059, now seen corresponding path program 460 times [2022-03-15 15:30:18,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:18,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744141056] [2022-03-15 15:30:18,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:18,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:18,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:18,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:18,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744141056] [2022-03-15 15:30:18,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744141056] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:18,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:18,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:18,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553439104] [2022-03-15 15:30:18,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:18,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:18,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:18,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:18,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:18,534 INFO L87 Difference]: Start difference. First operand 5281 states and 24978 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:18,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:18,768 INFO L93 Difference]: Finished difference Result 11510 states and 51414 transitions. [2022-03-15 15:30:18,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:18,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:18,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:18,804 INFO L225 Difference]: With dead ends: 11510 [2022-03-15 15:30:18,804 INFO L226 Difference]: Without dead ends: 10925 [2022-03-15 15:30:18,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:18,804 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 157 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:18,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 219 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:30:18,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10925 states. [2022-03-15 15:30:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10925 to 5171. [2022-03-15 15:30:18,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.745261121856866) internal successors, (24533), 5170 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:18,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24533 transitions. [2022-03-15 15:30:18,951 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24533 transitions. Word has length 29 [2022-03-15 15:30:18,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:18,951 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24533 transitions. [2022-03-15 15:30:18,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:18,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24533 transitions. [2022-03-15 15:30:18,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:18,961 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:18,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:18,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2022-03-15 15:30:18,962 INFO L402 AbstractCegarLoop]: === Iteration 466 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:18,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:18,962 INFO L85 PathProgramCache]: Analyzing trace with hash 169012511, now seen corresponding path program 461 times [2022-03-15 15:30:18,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:18,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624102408] [2022-03-15 15:30:18,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:18,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:19,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:19,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:19,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624102408] [2022-03-15 15:30:19,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624102408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:19,129 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:19,129 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:19,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898119480] [2022-03-15 15:30:19,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:19,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:19,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:19,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:19,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:19,130 INFO L87 Difference]: Start difference. First operand 5171 states and 24533 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:19,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:19,320 INFO L93 Difference]: Finished difference Result 11261 states and 50402 transitions. [2022-03-15 15:30:19,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:19,321 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:19,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:19,353 INFO L225 Difference]: With dead ends: 11261 [2022-03-15 15:30:19,354 INFO L226 Difference]: Without dead ends: 10846 [2022-03-15 15:30:19,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:19,354 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 164 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:19,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 215 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:19,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10846 states. [2022-03-15 15:30:19,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10846 to 5219. [2022-03-15 15:30:19,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.73533921042545) internal successors, (24709), 5218 states have internal predecessors, (24709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:19,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24709 transitions. [2022-03-15 15:30:19,495 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24709 transitions. Word has length 29 [2022-03-15 15:30:19,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:19,495 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24709 transitions. [2022-03-15 15:30:19,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:19,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24709 transitions. [2022-03-15 15:30:19,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:19,505 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:19,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:19,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2022-03-15 15:30:19,506 INFO L402 AbstractCegarLoop]: === Iteration 467 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:19,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:19,506 INFO L85 PathProgramCache]: Analyzing trace with hash -677784451, now seen corresponding path program 462 times [2022-03-15 15:30:19,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:19,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055354541] [2022-03-15 15:30:19,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:19,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:19,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:19,644 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:19,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055354541] [2022-03-15 15:30:19,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055354541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:19,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:19,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:19,645 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350887428] [2022-03-15 15:30:19,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:19,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:19,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:19,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:19,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:19,645 INFO L87 Difference]: Start difference. First operand 5219 states and 24709 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:19,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:19,835 INFO L93 Difference]: Finished difference Result 11321 states and 50618 transitions. [2022-03-15 15:30:19,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:19,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:19,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:19,868 INFO L225 Difference]: With dead ends: 11321 [2022-03-15 15:30:19,868 INFO L226 Difference]: Without dead ends: 10758 [2022-03-15 15:30:19,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:19,868 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 149 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:19,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 204 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:19,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10758 states. [2022-03-15 15:30:19,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10758 to 5131. [2022-03-15 15:30:19,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.754191033138402) internal successors, (24389), 5130 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24389 transitions. [2022-03-15 15:30:20,009 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24389 transitions. Word has length 29 [2022-03-15 15:30:20,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:20,010 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24389 transitions. [2022-03-15 15:30:20,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:20,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24389 transitions. [2022-03-15 15:30:20,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:20,019 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:20,020 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:20,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2022-03-15 15:30:20,020 INFO L402 AbstractCegarLoop]: === Iteration 468 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:20,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:20,020 INFO L85 PathProgramCache]: Analyzing trace with hash -342527683, now seen corresponding path program 463 times [2022-03-15 15:30:20,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:20,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165745486] [2022-03-15 15:30:20,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:20,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:20,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:20,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:20,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165745486] [2022-03-15 15:30:20,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165745486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:20,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:20,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:20,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866332586] [2022-03-15 15:30:20,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:20,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:20,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:20,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:20,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:20,210 INFO L87 Difference]: Start difference. First operand 5131 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:20,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:20,395 INFO L93 Difference]: Finished difference Result 11481 states and 51377 transitions. [2022-03-15 15:30:20,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:20,396 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:20,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:20,430 INFO L225 Difference]: With dead ends: 11481 [2022-03-15 15:30:20,430 INFO L226 Difference]: Without dead ends: 10939 [2022-03-15 15:30:20,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:20,430 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 185 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:20,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 196 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:20,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2022-03-15 15:30:20,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5251. [2022-03-15 15:30:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.739238095238095) internal successors, (24881), 5250 states have internal predecessors, (24881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:20,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24881 transitions. [2022-03-15 15:30:20,583 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24881 transitions. Word has length 29 [2022-03-15 15:30:20,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:20,583 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24881 transitions. [2022-03-15 15:30:20,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:20,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24881 transitions. [2022-03-15 15:30:20,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:20,593 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:20,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:20,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2022-03-15 15:30:20,594 INFO L402 AbstractCegarLoop]: === Iteration 469 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:20,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:20,594 INFO L85 PathProgramCache]: Analyzing trace with hash -549335649, now seen corresponding path program 464 times [2022-03-15 15:30:20,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:20,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946259625] [2022-03-15 15:30:20,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:20,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:20,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:20,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:20,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946259625] [2022-03-15 15:30:20,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946259625] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:20,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:20,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:20,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322383147] [2022-03-15 15:30:20,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:20,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:20,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:20,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:20,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:20,708 INFO L87 Difference]: Start difference. First operand 5251 states and 24881 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:20,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:20,874 INFO L93 Difference]: Finished difference Result 11354 states and 50770 transitions. [2022-03-15 15:30:20,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:20,875 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:20,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:20,914 INFO L225 Difference]: With dead ends: 11354 [2022-03-15 15:30:20,914 INFO L226 Difference]: Without dead ends: 10859 [2022-03-15 15:30:20,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:20,914 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 159 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:20,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 217 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:20,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10859 states. [2022-03-15 15:30:21,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10859 to 5171. [2022-03-15 15:30:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.749129593810445) internal successors, (24553), 5170 states have internal predecessors, (24553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:21,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24553 transitions. [2022-03-15 15:30:21,095 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24553 transitions. Word has length 29 [2022-03-15 15:30:21,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:21,095 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24553 transitions. [2022-03-15 15:30:21,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:21,095 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24553 transitions. [2022-03-15 15:30:21,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:21,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:21,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:21,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2022-03-15 15:30:21,107 INFO L402 AbstractCegarLoop]: === Iteration 470 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:21,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:21,107 INFO L85 PathProgramCache]: Analyzing trace with hash 750442813, now seen corresponding path program 465 times [2022-03-15 15:30:21,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:21,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793340290] [2022-03-15 15:30:21,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:21,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:21,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:21,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:21,222 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793340290] [2022-03-15 15:30:21,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793340290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:21,222 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:21,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:21,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116005433] [2022-03-15 15:30:21,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:21,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:21,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:21,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:21,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:21,223 INFO L87 Difference]: Start difference. First operand 5171 states and 24553 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:21,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:21,381 INFO L93 Difference]: Finished difference Result 11565 states and 51729 transitions. [2022-03-15 15:30:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:21,381 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:21,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:21,414 INFO L225 Difference]: With dead ends: 11565 [2022-03-15 15:30:21,415 INFO L226 Difference]: Without dead ends: 11023 [2022-03-15 15:30:21,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:21,415 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 156 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:21,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 227 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:21,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11023 states. [2022-03-15 15:30:21,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11023 to 5279. [2022-03-15 15:30:21,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.7277377794619175) internal successors, (24953), 5278 states have internal predecessors, (24953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:21,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24953 transitions. [2022-03-15 15:30:21,568 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24953 transitions. Word has length 29 [2022-03-15 15:30:21,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:21,568 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 24953 transitions. [2022-03-15 15:30:21,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:21,569 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24953 transitions. [2022-03-15 15:30:21,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:21,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:21,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:21,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2022-03-15 15:30:21,580 INFO L402 AbstractCegarLoop]: === Iteration 471 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:21,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:21,580 INFO L85 PathProgramCache]: Analyzing trace with hash -487860035, now seen corresponding path program 466 times [2022-03-15 15:30:21,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:21,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544247007] [2022-03-15 15:30:21,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:21,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:21,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:21,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:21,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544247007] [2022-03-15 15:30:21,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544247007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:21,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:21,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:21,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883961005] [2022-03-15 15:30:21,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:21,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:21,750 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:21,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:21,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:21,750 INFO L87 Difference]: Start difference. First operand 5279 states and 24953 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:21,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:21,937 INFO L93 Difference]: Finished difference Result 11494 states and 51346 transitions. [2022-03-15 15:30:21,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:21,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:21,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:21,971 INFO L225 Difference]: With dead ends: 11494 [2022-03-15 15:30:21,971 INFO L226 Difference]: Without dead ends: 10915 [2022-03-15 15:30:21,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:21,972 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 158 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:21,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 204 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:21,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2022-03-15 15:30:22,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 5171. [2022-03-15 15:30:22,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.741392649903288) internal successors, (24513), 5170 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:22,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24513 transitions. [2022-03-15 15:30:22,123 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24513 transitions. Word has length 29 [2022-03-15 15:30:22,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:22,123 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24513 transitions. [2022-03-15 15:30:22,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:22,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24513 transitions. [2022-03-15 15:30:22,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:22,133 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:22,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:22,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2022-03-15 15:30:22,133 INFO L402 AbstractCegarLoop]: === Iteration 472 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:22,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:22,133 INFO L85 PathProgramCache]: Analyzing trace with hash -842480481, now seen corresponding path program 467 times [2022-03-15 15:30:22,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:22,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946155478] [2022-03-15 15:30:22,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:22,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:22,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:22,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:22,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946155478] [2022-03-15 15:30:22,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946155478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:22,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:22,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:22,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507125587] [2022-03-15 15:30:22,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:22,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:22,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:22,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:22,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:22,262 INFO L87 Difference]: Start difference. First operand 5171 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:22,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:22,453 INFO L93 Difference]: Finished difference Result 11251 states and 50351 transitions. [2022-03-15 15:30:22,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:22,453 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:22,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:22,486 INFO L225 Difference]: With dead ends: 11251 [2022-03-15 15:30:22,486 INFO L226 Difference]: Without dead ends: 10836 [2022-03-15 15:30:22,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:22,487 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:22,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 213 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:22,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10836 states. [2022-03-15 15:30:22,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10836 to 5219. [2022-03-15 15:30:22,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.7315063242621695) internal successors, (24689), 5218 states have internal predecessors, (24689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:22,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24689 transitions. [2022-03-15 15:30:22,631 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24689 transitions. Word has length 29 [2022-03-15 15:30:22,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:22,631 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24689 transitions. [2022-03-15 15:30:22,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:22,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24689 transitions. [2022-03-15 15:30:22,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:22,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:22,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:22,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2022-03-15 15:30:22,641 INFO L402 AbstractCegarLoop]: === Iteration 473 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:22,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:22,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1336407165, now seen corresponding path program 468 times [2022-03-15 15:30:22,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:22,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729248214] [2022-03-15 15:30:22,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:22,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:22,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:22,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:22,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729248214] [2022-03-15 15:30:22,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729248214] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:22,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:22,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:22,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52656698] [2022-03-15 15:30:22,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:22,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:22,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:22,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:22,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:22,786 INFO L87 Difference]: Start difference. First operand 5219 states and 24689 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:22,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:22,970 INFO L93 Difference]: Finished difference Result 11307 states and 50555 transitions. [2022-03-15 15:30:22,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:22,970 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:22,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:23,001 INFO L225 Difference]: With dead ends: 11307 [2022-03-15 15:30:23,001 INFO L226 Difference]: Without dead ends: 10748 [2022-03-15 15:30:23,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:23,001 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 157 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:23,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 203 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:23,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10748 states. [2022-03-15 15:30:23,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10748 to 5131. [2022-03-15 15:30:23,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.750292397660819) internal successors, (24369), 5130 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:23,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24369 transitions. [2022-03-15 15:30:23,139 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24369 transitions. Word has length 29 [2022-03-15 15:30:23,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:23,139 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24369 transitions. [2022-03-15 15:30:23,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:23,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24369 transitions. [2022-03-15 15:30:23,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:23,149 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:23,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:23,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2022-03-15 15:30:23,149 INFO L402 AbstractCegarLoop]: === Iteration 474 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:23,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:23,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1131913953, now seen corresponding path program 469 times [2022-03-15 15:30:23,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:23,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44771840] [2022-03-15 15:30:23,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:23,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:23,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:23,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44771840] [2022-03-15 15:30:23,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44771840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:23,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:23,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:23,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460860124] [2022-03-15 15:30:23,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:23,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:23,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:23,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:23,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:23,321 INFO L87 Difference]: Start difference. First operand 5131 states and 24369 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:23,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:23,511 INFO L93 Difference]: Finished difference Result 11703 states and 52396 transitions. [2022-03-15 15:30:23,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:23,511 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:23,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:23,557 INFO L225 Difference]: With dead ends: 11703 [2022-03-15 15:30:23,558 INFO L226 Difference]: Without dead ends: 11161 [2022-03-15 15:30:23,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:23,558 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 167 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:23,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 208 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:23,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11161 states. [2022-03-15 15:30:23,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11161 to 5295. [2022-03-15 15:30:23,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 4.732716282584057) internal successors, (25055), 5294 states have internal predecessors, (25055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:23,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 25055 transitions. [2022-03-15 15:30:23,744 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 25055 transitions. Word has length 29 [2022-03-15 15:30:23,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:23,744 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 25055 transitions. [2022-03-15 15:30:23,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:23,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 25055 transitions. [2022-03-15 15:30:23,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:23,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:23,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:23,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2022-03-15 15:30:23,757 INFO L402 AbstractCegarLoop]: === Iteration 475 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:23,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:23,757 INFO L85 PathProgramCache]: Analyzing trace with hash 186936479, now seen corresponding path program 470 times [2022-03-15 15:30:23,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:23,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095916178] [2022-03-15 15:30:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:23,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:23,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:23,933 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:23,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095916178] [2022-03-15 15:30:23,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095916178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:23,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:23,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:23,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783888980] [2022-03-15 15:30:23,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:23,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:23,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:23,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:23,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:23,933 INFO L87 Difference]: Start difference. First operand 5295 states and 25055 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:24,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:24,153 INFO L93 Difference]: Finished difference Result 11636 states and 52023 transitions. [2022-03-15 15:30:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:24,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:24,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:24,186 INFO L225 Difference]: With dead ends: 11636 [2022-03-15 15:30:24,186 INFO L226 Difference]: Without dead ends: 11051 [2022-03-15 15:30:24,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:24,186 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 157 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:24,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 215 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:24,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11051 states. [2022-03-15 15:30:24,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11051 to 5185. [2022-03-15 15:30:24,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.744598765432099) internal successors, (24596), 5184 states have internal predecessors, (24596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:24,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24596 transitions. [2022-03-15 15:30:24,329 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24596 transitions. Word has length 29 [2022-03-15 15:30:24,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:24,329 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24596 transitions. [2022-03-15 15:30:24,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:24,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24596 transitions. [2022-03-15 15:30:24,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:24,338 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:24,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:24,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2022-03-15 15:30:24,339 INFO L402 AbstractCegarLoop]: === Iteration 476 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:24,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:24,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1139991805, now seen corresponding path program 471 times [2022-03-15 15:30:24,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:24,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203873369] [2022-03-15 15:30:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:24,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:24,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:24,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:24,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203873369] [2022-03-15 15:30:24,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203873369] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:24,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:24,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:24,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252172391] [2022-03-15 15:30:24,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:24,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:24,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:24,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:24,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:24,469 INFO L87 Difference]: Start difference. First operand 5185 states and 24596 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:24,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:24,637 INFO L93 Difference]: Finished difference Result 11697 states and 52323 transitions. [2022-03-15 15:30:24,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:24,637 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:24,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:24,671 INFO L225 Difference]: With dead ends: 11697 [2022-03-15 15:30:24,671 INFO L226 Difference]: Without dead ends: 11155 [2022-03-15 15:30:24,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:24,671 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 153 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:24,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 223 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:24,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11155 states. [2022-03-15 15:30:24,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11155 to 5293. [2022-03-15 15:30:24,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 4.723356009070295) internal successors, (24996), 5292 states have internal predecessors, (24996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:24,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 24996 transitions. [2022-03-15 15:30:24,829 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 24996 transitions. Word has length 29 [2022-03-15 15:30:24,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:24,829 INFO L470 AbstractCegarLoop]: Abstraction has 5293 states and 24996 transitions. [2022-03-15 15:30:24,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:24,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 24996 transitions. [2022-03-15 15:30:24,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:24,840 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:24,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:24,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2022-03-15 15:30:24,840 INFO L402 AbstractCegarLoop]: === Iteration 477 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:24,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:24,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1221741727, now seen corresponding path program 472 times [2022-03-15 15:30:24,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:24,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920191757] [2022-03-15 15:30:24,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:24,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:24,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:24,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:24,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920191757] [2022-03-15 15:30:24,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920191757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:24,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:24,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:24,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647649688] [2022-03-15 15:30:24,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:24,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:24,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:24,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:24,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:24,979 INFO L87 Difference]: Start difference. First operand 5293 states and 24996 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:25,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:25,181 INFO L93 Difference]: Finished difference Result 11626 states and 51940 transitions. [2022-03-15 15:30:25,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:25,181 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:25,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:25,216 INFO L225 Difference]: With dead ends: 11626 [2022-03-15 15:30:25,216 INFO L226 Difference]: Without dead ends: 11047 [2022-03-15 15:30:25,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:25,216 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 138 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:25,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 270 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:25,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11047 states. [2022-03-15 15:30:25,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11047 to 5185. [2022-03-15 15:30:25,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.734182098765432) internal successors, (24542), 5184 states have internal predecessors, (24542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:25,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24542 transitions. [2022-03-15 15:30:25,366 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24542 transitions. Word has length 29 [2022-03-15 15:30:25,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:25,366 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24542 transitions. [2022-03-15 15:30:25,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:25,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24542 transitions. [2022-03-15 15:30:25,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:25,376 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:25,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:25,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2022-03-15 15:30:25,376 INFO L402 AbstractCegarLoop]: === Iteration 478 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:25,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:25,377 INFO L85 PathProgramCache]: Analyzing trace with hash -116159457, now seen corresponding path program 473 times [2022-03-15 15:30:25,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:25,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999584362] [2022-03-15 15:30:25,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:25,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:25,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:25,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999584362] [2022-03-15 15:30:25,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999584362] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:25,543 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:25,543 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:25,543 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745635969] [2022-03-15 15:30:25,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:25,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:25,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:25,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:25,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:25,543 INFO L87 Difference]: Start difference. First operand 5185 states and 24542 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:25,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:25,734 INFO L93 Difference]: Finished difference Result 11531 states and 51599 transitions. [2022-03-15 15:30:25,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:25,734 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:25,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:25,766 INFO L225 Difference]: With dead ends: 11531 [2022-03-15 15:30:25,766 INFO L226 Difference]: Without dead ends: 11056 [2022-03-15 15:30:25,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:25,766 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:25,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 214 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:25,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2022-03-15 15:30:25,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5261. [2022-03-15 15:30:25,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.720532319391635) internal successors, (24830), 5260 states have internal predecessors, (24830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:25,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24830 transitions. [2022-03-15 15:30:25,945 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24830 transitions. Word has length 29 [2022-03-15 15:30:25,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:25,955 INFO L470 AbstractCegarLoop]: Abstraction has 5261 states and 24830 transitions. [2022-03-15 15:30:25,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:25,955 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24830 transitions. [2022-03-15 15:30:25,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:25,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:25,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:25,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2022-03-15 15:30:25,965 INFO L402 AbstractCegarLoop]: === Iteration 479 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:25,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:25,966 INFO L85 PathProgramCache]: Analyzing trace with hash -962956419, now seen corresponding path program 474 times [2022-03-15 15:30:25,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:25,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606269183] [2022-03-15 15:30:25,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:25,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:26,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:26,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:26,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606269183] [2022-03-15 15:30:26,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606269183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:26,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:26,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:26,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000962624] [2022-03-15 15:30:26,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:26,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:26,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:26,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:26,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:26,126 INFO L87 Difference]: Start difference. First operand 5261 states and 24830 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:26,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:26,344 INFO L93 Difference]: Finished difference Result 11527 states and 51511 transitions. [2022-03-15 15:30:26,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:26,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:26,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:26,376 INFO L225 Difference]: With dead ends: 11527 [2022-03-15 15:30:26,376 INFO L226 Difference]: Without dead ends: 10926 [2022-03-15 15:30:26,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:26,376 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 153 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:26,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 205 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:26,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10926 states. [2022-03-15 15:30:26,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10926 to 5131. [2022-03-15 15:30:26,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.746393762183236) internal successors, (24349), 5130 states have internal predecessors, (24349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:26,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24349 transitions. [2022-03-15 15:30:26,515 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24349 transitions. Word has length 29 [2022-03-15 15:30:26,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:26,515 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24349 transitions. [2022-03-15 15:30:26,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24349 transitions. [2022-03-15 15:30:26,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:26,525 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:26,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:26,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2022-03-15 15:30:26,525 INFO L402 AbstractCegarLoop]: === Iteration 480 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:26,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:26,525 INFO L85 PathProgramCache]: Analyzing trace with hash 953161601, now seen corresponding path program 475 times [2022-03-15 15:30:26,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:26,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104989697] [2022-03-15 15:30:26,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:26,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:26,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:26,644 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:26,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104989697] [2022-03-15 15:30:26,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104989697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:26,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:26,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:26,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990968819] [2022-03-15 15:30:26,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:26,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:26,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:26,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:26,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:26,644 INFO L87 Difference]: Start difference. First operand 5131 states and 24349 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:26,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:26,804 INFO L93 Difference]: Finished difference Result 11108 states and 49772 transitions. [2022-03-15 15:30:26,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:26,805 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:26,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:26,836 INFO L225 Difference]: With dead ends: 11108 [2022-03-15 15:30:26,836 INFO L226 Difference]: Without dead ends: 10693 [2022-03-15 15:30:26,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:26,836 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 160 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:26,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 205 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:26,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10693 states. [2022-03-15 15:30:26,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10693 to 5203. [2022-03-15 15:30:26,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.738369857747021) internal successors, (24649), 5202 states have internal predecessors, (24649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:26,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24649 transitions. [2022-03-15 15:30:26,973 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24649 transitions. Word has length 29 [2022-03-15 15:30:26,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:26,973 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24649 transitions. [2022-03-15 15:30:26,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:26,974 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24649 transitions. [2022-03-15 15:30:26,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:26,984 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:26,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:26,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2022-03-15 15:30:26,984 INFO L402 AbstractCegarLoop]: === Iteration 481 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:26,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:26,984 INFO L85 PathProgramCache]: Analyzing trace with hash 106364639, now seen corresponding path program 476 times [2022-03-15 15:30:26,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:26,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608701083] [2022-03-15 15:30:26,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:26,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:27,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:27,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:27,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608701083] [2022-03-15 15:30:27,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608701083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:27,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:27,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:27,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069576783] [2022-03-15 15:30:27,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:27,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:27,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:27,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:27,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:27,141 INFO L87 Difference]: Start difference. First operand 5203 states and 24649 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:27,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:27,393 INFO L93 Difference]: Finished difference Result 11168 states and 49988 transitions. [2022-03-15 15:30:27,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:27,393 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:27,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:27,427 INFO L225 Difference]: With dead ends: 11168 [2022-03-15 15:30:27,428 INFO L226 Difference]: Without dead ends: 10645 [2022-03-15 15:30:27,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:27,428 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 152 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:27,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 250 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:30:27,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10645 states. [2022-03-15 15:30:27,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10645 to 5155. [2022-03-15 15:30:27,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.743694218083042) internal successors, (24449), 5154 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:27,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24449 transitions. [2022-03-15 15:30:27,580 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24449 transitions. Word has length 29 [2022-03-15 15:30:27,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:27,580 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24449 transitions. [2022-03-15 15:30:27,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:27,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24449 transitions. [2022-03-15 15:30:27,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:27,590 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:27,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:27,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2022-03-15 15:30:27,591 INFO L402 AbstractCegarLoop]: === Iteration 482 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:27,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:27,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1069899937, now seen corresponding path program 477 times [2022-03-15 15:30:27,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:27,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012740836] [2022-03-15 15:30:27,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:27,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:27,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:27,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:27,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012740836] [2022-03-15 15:30:27,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012740836] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:27,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:27,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:27,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084384436] [2022-03-15 15:30:27,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:27,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:27,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:27,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:27,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:27,771 INFO L87 Difference]: Start difference. First operand 5155 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:27,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:27,967 INFO L93 Difference]: Finished difference Result 11104 states and 49736 transitions. [2022-03-15 15:30:27,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:27,968 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:27,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:28,002 INFO L225 Difference]: With dead ends: 11104 [2022-03-15 15:30:28,002 INFO L226 Difference]: Without dead ends: 10689 [2022-03-15 15:30:28,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:28,002 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 154 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:28,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 234 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:28,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10689 states. [2022-03-15 15:30:28,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10689 to 5203. [2022-03-15 15:30:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.7337562475970785) internal successors, (24625), 5202 states have internal predecessors, (24625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:28,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24625 transitions. [2022-03-15 15:30:28,151 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24625 transitions. Word has length 29 [2022-03-15 15:30:28,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:28,151 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24625 transitions. [2022-03-15 15:30:28,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:28,151 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24625 transitions. [2022-03-15 15:30:28,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:28,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:28,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:28,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2022-03-15 15:30:28,162 INFO L402 AbstractCegarLoop]: === Iteration 483 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:28,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:28,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1865926817, now seen corresponding path program 478 times [2022-03-15 15:30:28,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:28,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55628202] [2022-03-15 15:30:28,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:28,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:28,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:28,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:28,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55628202] [2022-03-15 15:30:28,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55628202] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:28,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:28,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:28,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782210328] [2022-03-15 15:30:28,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:28,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:28,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:28,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:28,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:28,297 INFO L87 Difference]: Start difference. First operand 5203 states and 24625 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:28,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:28,490 INFO L93 Difference]: Finished difference Result 11160 states and 49940 transitions. [2022-03-15 15:30:28,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:28,490 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:28,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:28,531 INFO L225 Difference]: With dead ends: 11160 [2022-03-15 15:30:28,532 INFO L226 Difference]: Without dead ends: 10641 [2022-03-15 15:30:28,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:28,532 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:28,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 232 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:28,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10641 states. [2022-03-15 15:30:28,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10641 to 5155. [2022-03-15 15:30:28,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.739037640667442) internal successors, (24425), 5154 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:28,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24425 transitions. [2022-03-15 15:30:28,724 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24425 transitions. Word has length 29 [2022-03-15 15:30:28,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:28,724 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24425 transitions. [2022-03-15 15:30:28,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:28,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24425 transitions. [2022-03-15 15:30:28,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:28,736 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:28,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:28,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2022-03-15 15:30:28,736 INFO L402 AbstractCegarLoop]: === Iteration 484 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:28,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:28,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1926648003, now seen corresponding path program 479 times [2022-03-15 15:30:28,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:28,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013295612] [2022-03-15 15:30:28,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:28,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:28,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:28,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013295612] [2022-03-15 15:30:28,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013295612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:28,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:28,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:28,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867859275] [2022-03-15 15:30:28,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:28,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:28,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:28,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:28,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:28,877 INFO L87 Difference]: Start difference. First operand 5155 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:29,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:29,083 INFO L93 Difference]: Finished difference Result 11252 states and 50380 transitions. [2022-03-15 15:30:29,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:29,084 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:29,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:29,118 INFO L225 Difference]: With dead ends: 11252 [2022-03-15 15:30:29,118 INFO L226 Difference]: Without dead ends: 10777 [2022-03-15 15:30:29,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:29,118 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 138 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:29,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 249 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:29,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10777 states. [2022-03-15 15:30:29,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10777 to 5231. [2022-03-15 15:30:29,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 4.725239005736138) internal successors, (24713), 5230 states have internal predecessors, (24713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:29,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 24713 transitions. [2022-03-15 15:30:29,268 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 24713 transitions. Word has length 29 [2022-03-15 15:30:29,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:29,269 INFO L470 AbstractCegarLoop]: Abstraction has 5231 states and 24713 transitions. [2022-03-15 15:30:29,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:29,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 24713 transitions. [2022-03-15 15:30:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:29,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:29,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:29,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2022-03-15 15:30:29,279 INFO L402 AbstractCegarLoop]: === Iteration 485 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:29,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:29,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1887417247, now seen corresponding path program 480 times [2022-03-15 15:30:29,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:29,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714759408] [2022-03-15 15:30:29,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:29,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:29,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:29,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714759408] [2022-03-15 15:30:29,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714759408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:29,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:29,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:29,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608723183] [2022-03-15 15:30:29,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:29,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:29,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:29,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:29,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:29,393 INFO L87 Difference]: Start difference. First operand 5231 states and 24713 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:29,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:29,590 INFO L93 Difference]: Finished difference Result 11248 states and 50292 transitions. [2022-03-15 15:30:29,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:29,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:29,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:29,624 INFO L225 Difference]: With dead ends: 11248 [2022-03-15 15:30:29,624 INFO L226 Difference]: Without dead ends: 10649 [2022-03-15 15:30:29,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:29,625 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 149 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:29,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 232 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:29,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10649 states. [2022-03-15 15:30:29,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10649 to 5103. [2022-03-15 15:30:29,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5102 states have (on average 4.757546060368483) internal successors, (24273), 5102 states have internal predecessors, (24273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:29,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 24273 transitions. [2022-03-15 15:30:29,773 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 24273 transitions. Word has length 29 [2022-03-15 15:30:29,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:29,773 INFO L470 AbstractCegarLoop]: Abstraction has 5103 states and 24273 transitions. [2022-03-15 15:30:29,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:29,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 24273 transitions. [2022-03-15 15:30:29,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:29,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:29,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:29,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2022-03-15 15:30:29,783 INFO L402 AbstractCegarLoop]: === Iteration 486 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:29,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:29,783 INFO L85 PathProgramCache]: Analyzing trace with hash -341051903, now seen corresponding path program 481 times [2022-03-15 15:30:29,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:29,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776065345] [2022-03-15 15:30:29,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:29,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:29,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:29,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:29,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776065345] [2022-03-15 15:30:29,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776065345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:29,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:29,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:29,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472992302] [2022-03-15 15:30:29,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:29,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:29,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:29,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:29,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:29,895 INFO L87 Difference]: Start difference. First operand 5103 states and 24273 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:30,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:30,057 INFO L93 Difference]: Finished difference Result 10300 states and 46061 transitions. [2022-03-15 15:30:30,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:30,057 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:30,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:30,089 INFO L225 Difference]: With dead ends: 10300 [2022-03-15 15:30:30,089 INFO L226 Difference]: Without dead ends: 9885 [2022-03-15 15:30:30,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:30,089 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 188 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:30,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 193 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:30,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9885 states. [2022-03-15 15:30:30,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9885 to 5179. [2022-03-15 15:30:30,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.750289687137891) internal successors, (24597), 5178 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:30,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24597 transitions. [2022-03-15 15:30:30,249 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24597 transitions. Word has length 29 [2022-03-15 15:30:30,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:30,249 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24597 transitions. [2022-03-15 15:30:30,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:30,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24597 transitions. [2022-03-15 15:30:30,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:30,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:30,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:30,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2022-03-15 15:30:30,260 INFO L402 AbstractCegarLoop]: === Iteration 487 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:30,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:30,260 INFO L85 PathProgramCache]: Analyzing trace with hash -111764893, now seen corresponding path program 482 times [2022-03-15 15:30:30,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:30,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679624848] [2022-03-15 15:30:30,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:30,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:30,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:30,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679624848] [2022-03-15 15:30:30,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679624848] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:30,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:30,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:30,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945838852] [2022-03-15 15:30:30,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:30,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:30,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:30,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:30,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:30,373 INFO L87 Difference]: Start difference. First operand 5179 states and 24597 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:30,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:30,524 INFO L93 Difference]: Finished difference Result 10362 states and 46282 transitions. [2022-03-15 15:30:30,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:30,525 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:30,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:30,556 INFO L225 Difference]: With dead ends: 10362 [2022-03-15 15:30:30,556 INFO L226 Difference]: Without dead ends: 9837 [2022-03-15 15:30:30,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:30,556 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 171 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:30,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 199 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:30,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9837 states. [2022-03-15 15:30:30,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9837 to 5131. [2022-03-15 15:30:30,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.757309941520468) internal successors, (24405), 5130 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:30,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24405 transitions. [2022-03-15 15:30:30,712 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24405 transitions. Word has length 29 [2022-03-15 15:30:30,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:30,712 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24405 transitions. [2022-03-15 15:30:30,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:30,713 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24405 transitions. [2022-03-15 15:30:30,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:30,725 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:30,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:30,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2022-03-15 15:30:30,725 INFO L402 AbstractCegarLoop]: === Iteration 488 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:30,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:30,725 INFO L85 PathProgramCache]: Analyzing trace with hash -821953949, now seen corresponding path program 483 times [2022-03-15 15:30:30,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:30,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467386343] [2022-03-15 15:30:30,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:30,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:30,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:30,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:30,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467386343] [2022-03-15 15:30:30,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467386343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:30,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:30,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:30,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401808058] [2022-03-15 15:30:30,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:30,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:30,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:30,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:30,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:30,871 INFO L87 Difference]: Start difference. First operand 5131 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:31,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:31,103 INFO L93 Difference]: Finished difference Result 10222 states and 45696 transitions. [2022-03-15 15:30:31,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:31,103 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:31,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:31,134 INFO L225 Difference]: With dead ends: 10222 [2022-03-15 15:30:31,135 INFO L226 Difference]: Without dead ends: 9807 [2022-03-15 15:30:31,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:31,135 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 145 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:31,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 255 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:31,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9807 states. [2022-03-15 15:30:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9807 to 5163. [2022-03-15 15:30:31,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.749515691592406) internal successors, (24517), 5162 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:31,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24517 transitions. [2022-03-15 15:30:31,279 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24517 transitions. Word has length 29 [2022-03-15 15:30:31,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:31,279 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 24517 transitions. [2022-03-15 15:30:31,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:31,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24517 transitions. [2022-03-15 15:30:31,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:31,289 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:31,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:31,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2022-03-15 15:30:31,290 INFO L402 AbstractCegarLoop]: === Iteration 489 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:31,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:31,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1635926341, now seen corresponding path program 484 times [2022-03-15 15:30:31,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:31,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803541804] [2022-03-15 15:30:31,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:31,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:31,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:31,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803541804] [2022-03-15 15:30:31,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803541804] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:31,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:31,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:31,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074477875] [2022-03-15 15:30:31,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:31,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:31,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:31,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:31,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:31,412 INFO L87 Difference]: Start difference. First operand 5163 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:31,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:31,568 INFO L93 Difference]: Finished difference Result 10222 states and 45664 transitions. [2022-03-15 15:30:31,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:31,569 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:31,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:31,599 INFO L225 Difference]: With dead ends: 10222 [2022-03-15 15:30:31,599 INFO L226 Difference]: Without dead ends: 9775 [2022-03-15 15:30:31,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:31,599 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 166 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:31,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 201 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:31,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9775 states. [2022-03-15 15:30:31,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9775 to 5131. [2022-03-15 15:30:31,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.754191033138402) internal successors, (24389), 5130 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:31,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24389 transitions. [2022-03-15 15:30:31,739 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24389 transitions. Word has length 29 [2022-03-15 15:30:31,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:31,739 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24389 transitions. [2022-03-15 15:30:31,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:31,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24389 transitions. [2022-03-15 15:30:31,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:31,749 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:31,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:31,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2022-03-15 15:30:31,750 INFO L402 AbstractCegarLoop]: === Iteration 490 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:31,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:31,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1500230853, now seen corresponding path program 485 times [2022-03-15 15:30:31,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:31,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401974738] [2022-03-15 15:30:31,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:31,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:31,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:31,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:31,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401974738] [2022-03-15 15:30:31,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401974738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:31,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:31,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:31,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313655097] [2022-03-15 15:30:31,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:31,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:31,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:31,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:31,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:31,867 INFO L87 Difference]: Start difference. First operand 5131 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:32,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:32,039 INFO L93 Difference]: Finished difference Result 10362 states and 46298 transitions. [2022-03-15 15:30:32,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:32,039 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:32,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:32,071 INFO L225 Difference]: With dead ends: 10362 [2022-03-15 15:30:32,071 INFO L226 Difference]: Without dead ends: 9885 [2022-03-15 15:30:32,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:32,071 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 163 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:32,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 217 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:32,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9885 states. [2022-03-15 15:30:32,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9885 to 5179. [2022-03-15 15:30:32,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.744109694862882) internal successors, (24565), 5178 states have internal predecessors, (24565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:32,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24565 transitions. [2022-03-15 15:30:32,213 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24565 transitions. Word has length 29 [2022-03-15 15:30:32,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:32,214 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24565 transitions. [2022-03-15 15:30:32,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:32,214 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24565 transitions. [2022-03-15 15:30:32,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:32,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:32,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:32,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2022-03-15 15:30:32,224 INFO L402 AbstractCegarLoop]: === Iteration 491 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:32,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:32,224 INFO L85 PathProgramCache]: Analyzing trace with hash -419168227, now seen corresponding path program 486 times [2022-03-15 15:30:32,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:32,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226402654] [2022-03-15 15:30:32,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:32,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:32,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:32,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:32,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226402654] [2022-03-15 15:30:32,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226402654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:32,343 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:32,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:32,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605979659] [2022-03-15 15:30:32,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:32,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:32,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:32,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:32,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:32,344 INFO L87 Difference]: Start difference. First operand 5179 states and 24565 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:32,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:32,499 INFO L93 Difference]: Finished difference Result 10300 states and 45981 transitions. [2022-03-15 15:30:32,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:32,499 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:32,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:32,630 INFO L225 Difference]: With dead ends: 10300 [2022-03-15 15:30:32,631 INFO L226 Difference]: Without dead ends: 9821 [2022-03-15 15:30:32,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:32,631 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 163 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:32,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 211 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:32,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9821 states. [2022-03-15 15:30:32,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9821 to 5115. [2022-03-15 15:30:32,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.758114978490418) internal successors, (24333), 5114 states have internal predecessors, (24333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24333 transitions. [2022-03-15 15:30:32,751 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24333 transitions. Word has length 29 [2022-03-15 15:30:32,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:32,751 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24333 transitions. [2022-03-15 15:30:32,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:32,751 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24333 transitions. [2022-03-15 15:30:32,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:32,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:32,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:32,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2022-03-15 15:30:32,761 INFO L402 AbstractCegarLoop]: === Iteration 492 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:32,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:32,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1368549859, now seen corresponding path program 487 times [2022-03-15 15:30:32,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:32,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814942294] [2022-03-15 15:30:32,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:32,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:32,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:32,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:32,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814942294] [2022-03-15 15:30:32,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814942294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:32,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:32,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:32,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747593706] [2022-03-15 15:30:32,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:32,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:32,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:32,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:32,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:32,868 INFO L87 Difference]: Start difference. First operand 5115 states and 24333 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:33,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:33,036 INFO L93 Difference]: Finished difference Result 10414 states and 46588 transitions. [2022-03-15 15:30:33,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:33,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:33,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:33,065 INFO L225 Difference]: With dead ends: 10414 [2022-03-15 15:30:33,065 INFO L226 Difference]: Without dead ends: 9999 [2022-03-15 15:30:33,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:33,066 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 152 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:33,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 255 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:33,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9999 states. [2022-03-15 15:30:33,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9999 to 5187. [2022-03-15 15:30:33,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.749903586579252) internal successors, (24633), 5186 states have internal predecessors, (24633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:33,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24633 transitions. [2022-03-15 15:30:33,202 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24633 transitions. Word has length 29 [2022-03-15 15:30:33,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:33,202 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24633 transitions. [2022-03-15 15:30:33,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:33,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24633 transitions. [2022-03-15 15:30:33,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:33,212 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:33,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:33,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2022-03-15 15:30:33,212 INFO L402 AbstractCegarLoop]: === Iteration 493 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:33,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:33,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1597836869, now seen corresponding path program 488 times [2022-03-15 15:30:33,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:33,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194235249] [2022-03-15 15:30:33,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:33,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:33,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:33,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:33,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194235249] [2022-03-15 15:30:33,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194235249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:33,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:33,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:33,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155418522] [2022-03-15 15:30:33,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:33,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:33,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:33,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:33,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:33,325 INFO L87 Difference]: Start difference. First operand 5187 states and 24633 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:33,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:33,479 INFO L93 Difference]: Finished difference Result 10476 states and 46809 transitions. [2022-03-15 15:30:33,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:33,479 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:33,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:33,510 INFO L225 Difference]: With dead ends: 10476 [2022-03-15 15:30:33,511 INFO L226 Difference]: Without dead ends: 9951 [2022-03-15 15:30:33,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:33,511 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 152 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:33,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 215 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:33,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9951 states. [2022-03-15 15:30:33,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9951 to 5139. [2022-03-15 15:30:33,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.755352277150642) internal successors, (24433), 5138 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:33,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24433 transitions. [2022-03-15 15:30:33,646 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24433 transitions. Word has length 29 [2022-03-15 15:30:33,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:33,646 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24433 transitions. [2022-03-15 15:30:33,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:33,646 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24433 transitions. [2022-03-15 15:30:33,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:33,656 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:33,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:33,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2022-03-15 15:30:33,656 INFO L402 AbstractCegarLoop]: === Iteration 494 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:33,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:33,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1833446941, now seen corresponding path program 489 times [2022-03-15 15:30:33,656 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:33,656 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128337357] [2022-03-15 15:30:33,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:33,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:33,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:33,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128337357] [2022-03-15 15:30:33,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128337357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:33,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:33,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:33,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091919854] [2022-03-15 15:30:33,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:33,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:33,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:33,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:33,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:33,802 INFO L87 Difference]: Start difference. First operand 5139 states and 24433 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:33,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:33,984 INFO L93 Difference]: Finished difference Result 10412 states and 46559 transitions. [2022-03-15 15:30:33,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:33,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:33,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:34,014 INFO L225 Difference]: With dead ends: 10412 [2022-03-15 15:30:34,014 INFO L226 Difference]: Without dead ends: 9997 [2022-03-15 15:30:34,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:34,014 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 174 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:34,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 201 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:34,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9997 states. [2022-03-15 15:30:34,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9997 to 5187. [2022-03-15 15:30:34,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.74527574238334) internal successors, (24609), 5186 states have internal predecessors, (24609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:34,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24609 transitions. [2022-03-15 15:30:34,139 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24609 transitions. Word has length 29 [2022-03-15 15:30:34,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:34,139 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24609 transitions. [2022-03-15 15:30:34,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:34,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24609 transitions. [2022-03-15 15:30:34,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:34,148 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:34,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:34,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2022-03-15 15:30:34,148 INFO L402 AbstractCegarLoop]: === Iteration 495 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:34,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:34,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1291257501, now seen corresponding path program 490 times [2022-03-15 15:30:34,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:34,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501379062] [2022-03-15 15:30:34,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:34,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:34,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:34,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:34,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501379062] [2022-03-15 15:30:34,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501379062] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:34,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:34,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:34,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557693895] [2022-03-15 15:30:34,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:34,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:34,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:34,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:34,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:34,260 INFO L87 Difference]: Start difference. First operand 5187 states and 24609 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:34,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:34,417 INFO L93 Difference]: Finished difference Result 10472 states and 46775 transitions. [2022-03-15 15:30:34,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:34,417 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:34,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:34,445 INFO L225 Difference]: With dead ends: 10472 [2022-03-15 15:30:34,446 INFO L226 Difference]: Without dead ends: 9949 [2022-03-15 15:30:34,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:34,446 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 171 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:34,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 200 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:34,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9949 states. [2022-03-15 15:30:34,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9949 to 5139. [2022-03-15 15:30:34,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.7506811989100814) internal successors, (24409), 5138 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:34,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24409 transitions. [2022-03-15 15:30:34,571 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24409 transitions. Word has length 29 [2022-03-15 15:30:34,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:34,571 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24409 transitions. [2022-03-15 15:30:34,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:34,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24409 transitions. [2022-03-15 15:30:34,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:34,581 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:34,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:34,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2022-03-15 15:30:34,581 INFO L402 AbstractCegarLoop]: === Iteration 496 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:34,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:34,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1334170299, now seen corresponding path program 491 times [2022-03-15 15:30:34,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:34,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174543764] [2022-03-15 15:30:34,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:34,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:34,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:34,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174543764] [2022-03-15 15:30:34,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174543764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:34,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:34,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:34,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495110855] [2022-03-15 15:30:34,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:34,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:34,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:34,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:34,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:34,690 INFO L87 Difference]: Start difference. First operand 5139 states and 24409 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:34,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:34,845 INFO L93 Difference]: Finished difference Result 10566 states and 47220 transitions. [2022-03-15 15:30:34,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:34,845 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:34,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:34,874 INFO L225 Difference]: With dead ends: 10566 [2022-03-15 15:30:34,874 INFO L226 Difference]: Without dead ends: 10089 [2022-03-15 15:30:34,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:34,875 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 156 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:34,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 223 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:34,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10089 states. [2022-03-15 15:30:34,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10089 to 5217. [2022-03-15 15:30:34,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.735812883435583) internal successors, (24702), 5216 states have internal predecessors, (24702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:35,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24702 transitions. [2022-03-15 15:30:35,003 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24702 transitions. Word has length 29 [2022-03-15 15:30:35,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:35,003 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24702 transitions. [2022-03-15 15:30:35,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:35,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24702 transitions. [2022-03-15 15:30:35,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:35,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:35,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:35,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2022-03-15 15:30:35,013 INFO L402 AbstractCegarLoop]: === Iteration 497 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:35,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:35,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1568652451, now seen corresponding path program 492 times [2022-03-15 15:30:35,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:35,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307766715] [2022-03-15 15:30:35,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:35,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:35,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:35,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:35,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307766715] [2022-03-15 15:30:35,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307766715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:35,129 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:35,129 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:35,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422506142] [2022-03-15 15:30:35,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:35,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:35,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:35,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:35,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:35,130 INFO L87 Difference]: Start difference. First operand 5217 states and 24702 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:35,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:35,309 INFO L93 Difference]: Finished difference Result 10564 states and 47137 transitions. [2022-03-15 15:30:35,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:35,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:35,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:35,341 INFO L225 Difference]: With dead ends: 10564 [2022-03-15 15:30:35,341 INFO L226 Difference]: Without dead ends: 9987 [2022-03-15 15:30:35,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:35,341 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 183 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:35,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 201 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:35,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9987 states. [2022-03-15 15:30:35,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9987 to 5115. [2022-03-15 15:30:35,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.756550645287446) internal successors, (24325), 5114 states have internal predecessors, (24325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:35,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24325 transitions. [2022-03-15 15:30:35,471 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24325 transitions. Word has length 29 [2022-03-15 15:30:35,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:35,471 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24325 transitions. [2022-03-15 15:30:35,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:35,471 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24325 transitions. [2022-03-15 15:30:35,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:35,480 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:35,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:35,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2022-03-15 15:30:35,481 INFO L402 AbstractCegarLoop]: === Iteration 498 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:35,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:35,481 INFO L85 PathProgramCache]: Analyzing trace with hash 579163589, now seen corresponding path program 493 times [2022-03-15 15:30:35,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:35,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156368391] [2022-03-15 15:30:35,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:35,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:35,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:35,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:35,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156368391] [2022-03-15 15:30:35,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156368391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:35,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:35,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:35,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355386355] [2022-03-15 15:30:35,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:35,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:35,643 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:35,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:35,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:35,643 INFO L87 Difference]: Start difference. First operand 5115 states and 24325 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:35,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:35,841 INFO L93 Difference]: Finished difference Result 10220 states and 45691 transitions. [2022-03-15 15:30:35,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:35,841 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:35,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:35,870 INFO L225 Difference]: With dead ends: 10220 [2022-03-15 15:30:35,870 INFO L226 Difference]: Without dead ends: 9805 [2022-03-15 15:30:35,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:35,870 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 175 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:35,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 206 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:35,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9805 states. [2022-03-15 15:30:35,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9805 to 5163. [2022-03-15 15:30:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.749515691592406) internal successors, (24517), 5162 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:35,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24517 transitions. [2022-03-15 15:30:35,998 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24517 transitions. Word has length 29 [2022-03-15 15:30:35,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:35,998 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 24517 transitions. [2022-03-15 15:30:35,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:35,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24517 transitions. [2022-03-15 15:30:36,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:36,008 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:36,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:36,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2022-03-15 15:30:36,008 INFO L402 AbstractCegarLoop]: === Iteration 499 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:36,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:36,009 INFO L85 PathProgramCache]: Analyzing trace with hash -234808803, now seen corresponding path program 494 times [2022-03-15 15:30:36,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:36,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097868599] [2022-03-15 15:30:36,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:36,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:36,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:36,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:36,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097868599] [2022-03-15 15:30:36,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097868599] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:36,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:36,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:36,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803189779] [2022-03-15 15:30:36,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:36,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:36,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:36,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:36,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:36,181 INFO L87 Difference]: Start difference. First operand 5163 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:36,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:36,348 INFO L93 Difference]: Finished difference Result 10220 states and 45659 transitions. [2022-03-15 15:30:36,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:36,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:36,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:36,375 INFO L225 Difference]: With dead ends: 10220 [2022-03-15 15:30:36,376 INFO L226 Difference]: Without dead ends: 9773 [2022-03-15 15:30:36,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:36,376 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 172 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:36,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 212 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:36,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9773 states. [2022-03-15 15:30:36,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9773 to 5131. [2022-03-15 15:30:36,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.754191033138402) internal successors, (24389), 5130 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:36,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24389 transitions. [2022-03-15 15:30:36,515 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24389 transitions. Word has length 29 [2022-03-15 15:30:36,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:36,515 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24389 transitions. [2022-03-15 15:30:36,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:36,515 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24389 transitions. [2022-03-15 15:30:36,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:36,524 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:36,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:36,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2022-03-15 15:30:36,525 INFO L402 AbstractCegarLoop]: === Iteration 500 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:36,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:36,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1443897949, now seen corresponding path program 495 times [2022-03-15 15:30:36,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:36,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796477988] [2022-03-15 15:30:36,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:36,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:36,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:36,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:36,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796477988] [2022-03-15 15:30:36,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796477988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:36,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:36,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:36,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884149454] [2022-03-15 15:30:36,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:36,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:36,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:36,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:36,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:36,650 INFO L87 Difference]: Start difference. First operand 5131 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:36,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:36,842 INFO L93 Difference]: Finished difference Result 10296 states and 46019 transitions. [2022-03-15 15:30:36,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:36,842 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:36,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:36,871 INFO L225 Difference]: With dead ends: 10296 [2022-03-15 15:30:36,871 INFO L226 Difference]: Without dead ends: 9881 [2022-03-15 15:30:36,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:36,871 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 184 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:36,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 188 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:36,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9881 states. [2022-03-15 15:30:36,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9881 to 5179. [2022-03-15 15:30:36,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.744109694862882) internal successors, (24565), 5178 states have internal predecessors, (24565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:36,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24565 transitions. [2022-03-15 15:30:36,999 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24565 transitions. Word has length 29 [2022-03-15 15:30:36,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:36,999 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24565 transitions. [2022-03-15 15:30:36,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:37,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24565 transitions. [2022-03-15 15:30:37,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:37,009 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:37,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:37,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2022-03-15 15:30:37,010 INFO L402 AbstractCegarLoop]: === Iteration 501 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:37,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:37,010 INFO L85 PathProgramCache]: Analyzing trace with hash 418344261, now seen corresponding path program 496 times [2022-03-15 15:30:37,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:37,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641309679] [2022-03-15 15:30:37,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:37,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:37,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:37,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641309679] [2022-03-15 15:30:37,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641309679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:37,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:37,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:37,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463344545] [2022-03-15 15:30:37,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:37,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:37,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:37,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:37,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:37,126 INFO L87 Difference]: Start difference. First operand 5179 states and 24565 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:37,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:37,323 INFO L93 Difference]: Finished difference Result 10356 states and 46235 transitions. [2022-03-15 15:30:37,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:37,324 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:37,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:37,352 INFO L225 Difference]: With dead ends: 10356 [2022-03-15 15:30:37,353 INFO L226 Difference]: Without dead ends: 9833 [2022-03-15 15:30:37,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:37,353 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 167 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:37,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 208 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:37,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2022-03-15 15:30:37,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 5131. [2022-03-15 15:30:37,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.751072124756336) internal successors, (24373), 5130 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:37,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24373 transitions. [2022-03-15 15:30:37,479 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24373 transitions. Word has length 29 [2022-03-15 15:30:37,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:37,479 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24373 transitions. [2022-03-15 15:30:37,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:37,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24373 transitions. [2022-03-15 15:30:37,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:37,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:37,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:37,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2022-03-15 15:30:37,488 INFO L402 AbstractCegarLoop]: === Iteration 502 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:37,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:37,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1891474235, now seen corresponding path program 497 times [2022-03-15 15:30:37,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:37,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556997322] [2022-03-15 15:30:37,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:37,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:37,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:37,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556997322] [2022-03-15 15:30:37,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556997322] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:37,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:37,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:37,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218935903] [2022-03-15 15:30:37,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:37,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:37,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:37,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:37,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:37,679 INFO L87 Difference]: Start difference. First operand 5131 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:37,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:37,852 INFO L93 Difference]: Finished difference Result 10296 states and 46003 transitions. [2022-03-15 15:30:37,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:37,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:37,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:37,881 INFO L225 Difference]: With dead ends: 10296 [2022-03-15 15:30:37,881 INFO L226 Difference]: Without dead ends: 9881 [2022-03-15 15:30:37,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:37,881 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:37,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 204 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:37,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9881 states. [2022-03-15 15:30:37,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9881 to 5179. [2022-03-15 15:30:37,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.741019698725377) internal successors, (24549), 5178 states have internal predecessors, (24549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24549 transitions. [2022-03-15 15:30:38,012 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24549 transitions. Word has length 29 [2022-03-15 15:30:38,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:38,012 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24549 transitions. [2022-03-15 15:30:38,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:38,012 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24549 transitions. [2022-03-15 15:30:38,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:38,021 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:38,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:38,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2022-03-15 15:30:38,022 INFO L402 AbstractCegarLoop]: === Iteration 503 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:38,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:38,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1322430435, now seen corresponding path program 498 times [2022-03-15 15:30:38,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:38,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027108390] [2022-03-15 15:30:38,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:38,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:38,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:38,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:38,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027108390] [2022-03-15 15:30:38,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027108390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:38,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:38,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:38,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420705892] [2022-03-15 15:30:38,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:38,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:38,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:38,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:38,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:38,151 INFO L87 Difference]: Start difference. First operand 5179 states and 24549 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:38,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:38,323 INFO L93 Difference]: Finished difference Result 10356 states and 46219 transitions. [2022-03-15 15:30:38,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:38,324 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:38,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:38,352 INFO L225 Difference]: With dead ends: 10356 [2022-03-15 15:30:38,353 INFO L226 Difference]: Without dead ends: 9817 [2022-03-15 15:30:38,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:38,353 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 159 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:38,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 200 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:38,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2022-03-15 15:30:38,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 5115. [2022-03-15 15:30:38,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.754986312084474) internal successors, (24317), 5114 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:38,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24317 transitions. [2022-03-15 15:30:38,481 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24317 transitions. Word has length 29 [2022-03-15 15:30:38,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:38,481 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24317 transitions. [2022-03-15 15:30:38,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:38,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24317 transitions. [2022-03-15 15:30:38,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:38,491 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:38,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:38,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2022-03-15 15:30:38,491 INFO L402 AbstractCegarLoop]: === Iteration 504 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:38,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:38,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1749870523, now seen corresponding path program 499 times [2022-03-15 15:30:38,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:38,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467362550] [2022-03-15 15:30:38,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:38,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:38,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:38,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467362550] [2022-03-15 15:30:38,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467362550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:38,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:38,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:38,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140529808] [2022-03-15 15:30:38,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:38,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:38,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:38,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:38,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:38,672 INFO L87 Difference]: Start difference. First operand 5115 states and 24317 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:38,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:38,869 INFO L93 Difference]: Finished difference Result 10476 states and 46841 transitions. [2022-03-15 15:30:38,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:38,869 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:38,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:38,900 INFO L225 Difference]: With dead ends: 10476 [2022-03-15 15:30:38,900 INFO L226 Difference]: Without dead ends: 9999 [2022-03-15 15:30:38,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:38,900 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 166 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:38,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 208 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:38,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9999 states. [2022-03-15 15:30:39,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9999 to 5187. [2022-03-15 15:30:39,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.746818357115311) internal successors, (24617), 5186 states have internal predecessors, (24617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:39,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24617 transitions. [2022-03-15 15:30:39,112 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24617 transitions. Word has length 29 [2022-03-15 15:30:39,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:39,112 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24617 transitions. [2022-03-15 15:30:39,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:39,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24617 transitions. [2022-03-15 15:30:39,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:39,122 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:39,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:39,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2022-03-15 15:30:39,122 INFO L402 AbstractCegarLoop]: === Iteration 505 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:39,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:39,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1464034147, now seen corresponding path program 500 times [2022-03-15 15:30:39,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:39,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572775535] [2022-03-15 15:30:39,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:39,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:39,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:39,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:39,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572775535] [2022-03-15 15:30:39,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572775535] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:39,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:39,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:39,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570906707] [2022-03-15 15:30:39,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:39,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:39,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:39,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:39,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:39,283 INFO L87 Difference]: Start difference. First operand 5187 states and 24617 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:39,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:39,462 INFO L93 Difference]: Finished difference Result 10414 states and 46524 transitions. [2022-03-15 15:30:39,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:39,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:39,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:39,491 INFO L225 Difference]: With dead ends: 10414 [2022-03-15 15:30:39,491 INFO L226 Difference]: Without dead ends: 9951 [2022-03-15 15:30:39,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:39,492 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 178 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:39,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 200 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:39,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9951 states. [2022-03-15 15:30:39,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9951 to 5139. [2022-03-15 15:30:39,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.752238224990268) internal successors, (24417), 5138 states have internal predecessors, (24417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:39,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24417 transitions. [2022-03-15 15:30:39,617 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24417 transitions. Word has length 29 [2022-03-15 15:30:39,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:39,618 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24417 transitions. [2022-03-15 15:30:39,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:39,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24417 transitions. [2022-03-15 15:30:39,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:39,627 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:39,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:39,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2022-03-15 15:30:39,627 INFO L402 AbstractCegarLoop]: === Iteration 506 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:39,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:39,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1268968477, now seen corresponding path program 501 times [2022-03-15 15:30:39,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:39,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427657146] [2022-03-15 15:30:39,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:39,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:39,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:39,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:39,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427657146] [2022-03-15 15:30:39,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427657146] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:39,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:39,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:39,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833522081] [2022-03-15 15:30:39,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:39,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:39,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:39,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:39,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:39,791 INFO L87 Difference]: Start difference. First operand 5139 states and 24417 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:39,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:39,982 INFO L93 Difference]: Finished difference Result 10566 states and 47228 transitions. [2022-03-15 15:30:39,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:39,982 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:39,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:40,012 INFO L225 Difference]: With dead ends: 10566 [2022-03-15 15:30:40,012 INFO L226 Difference]: Without dead ends: 10089 [2022-03-15 15:30:40,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:40,013 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 161 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:40,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 217 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:40,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10089 states. [2022-03-15 15:30:40,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10089 to 5217. [2022-03-15 15:30:40,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.737346625766871) internal successors, (24710), 5216 states have internal predecessors, (24710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:40,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24710 transitions. [2022-03-15 15:30:40,145 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24710 transitions. Word has length 29 [2022-03-15 15:30:40,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:40,145 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24710 transitions. [2022-03-15 15:30:40,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:40,146 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24710 transitions. [2022-03-15 15:30:40,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:40,155 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:40,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:40,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2022-03-15 15:30:40,155 INFO L402 AbstractCegarLoop]: === Iteration 507 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:40,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:40,155 INFO L85 PathProgramCache]: Analyzing trace with hash -419277795, now seen corresponding path program 502 times [2022-03-15 15:30:40,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:40,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546586817] [2022-03-15 15:30:40,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:40,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:40,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:40,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546586817] [2022-03-15 15:30:40,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546586817] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:40,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:40,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:40,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723060841] [2022-03-15 15:30:40,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:40,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:40,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:40,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:40,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:40,273 INFO L87 Difference]: Start difference. First operand 5217 states and 24710 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:40,438 INFO L93 Difference]: Finished difference Result 10564 states and 47145 transitions. [2022-03-15 15:30:40,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:40,438 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:40,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:40,466 INFO L225 Difference]: With dead ends: 10564 [2022-03-15 15:30:40,466 INFO L226 Difference]: Without dead ends: 10011 [2022-03-15 15:30:40,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:40,467 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 166 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:40,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 210 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:40,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10011 states. [2022-03-15 15:30:40,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10011 to 5139. [2022-03-15 15:30:40,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.7475671467497085) internal successors, (24393), 5138 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:40,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24393 transitions. [2022-03-15 15:30:40,591 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24393 transitions. Word has length 29 [2022-03-15 15:30:40,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:40,591 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24393 transitions. [2022-03-15 15:30:40,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:40,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24393 transitions. [2022-03-15 15:30:40,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:40,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:40,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:40,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2022-03-15 15:30:40,600 INFO L402 AbstractCegarLoop]: === Iteration 508 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:40,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:40,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1656973439, now seen corresponding path program 503 times [2022-03-15 15:30:40,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:40,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213377114] [2022-03-15 15:30:40,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:40,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:40,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:40,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:40,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213377114] [2022-03-15 15:30:40,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213377114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:40,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:40,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:40,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454800731] [2022-03-15 15:30:40,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:40,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:40,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:40,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:40,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:40,722 INFO L87 Difference]: Start difference. First operand 5139 states and 24393 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:40,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:40,889 INFO L93 Difference]: Finished difference Result 10412 states and 46519 transitions. [2022-03-15 15:30:40,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:40,889 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:40,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:40,924 INFO L225 Difference]: With dead ends: 10412 [2022-03-15 15:30:40,924 INFO L226 Difference]: Without dead ends: 9997 [2022-03-15 15:30:40,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:40,924 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 148 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:40,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 249 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:40,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9997 states. [2022-03-15 15:30:41,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9997 to 5187. [2022-03-15 15:30:41,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.737562668723486) internal successors, (24569), 5186 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:41,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24569 transitions. [2022-03-15 15:30:41,059 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24569 transitions. Word has length 29 [2022-03-15 15:30:41,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:41,059 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24569 transitions. [2022-03-15 15:30:41,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:41,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24569 transitions. [2022-03-15 15:30:41,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:41,068 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:41,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:41,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2022-03-15 15:30:41,069 INFO L402 AbstractCegarLoop]: === Iteration 509 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:41,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:41,069 INFO L85 PathProgramCache]: Analyzing trace with hash 810176477, now seen corresponding path program 504 times [2022-03-15 15:30:41,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:41,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574885006] [2022-03-15 15:30:41,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:41,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:41,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:41,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:41,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574885006] [2022-03-15 15:30:41,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574885006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:41,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:41,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:41,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284908280] [2022-03-15 15:30:41,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:41,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:41,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:41,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:41,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:41,177 INFO L87 Difference]: Start difference. First operand 5187 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:41,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:41,332 INFO L93 Difference]: Finished difference Result 10472 states and 46735 transitions. [2022-03-15 15:30:41,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:41,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:41,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:41,365 INFO L225 Difference]: With dead ends: 10472 [2022-03-15 15:30:41,365 INFO L226 Difference]: Without dead ends: 9917 [2022-03-15 15:30:41,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:41,366 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 149 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:41,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 217 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:41,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9917 states. [2022-03-15 15:30:41,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9917 to 5107. [2022-03-15 15:30:41,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.7577359968664314) internal successors, (24293), 5106 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:41,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24293 transitions. [2022-03-15 15:30:41,526 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24293 transitions. Word has length 29 [2022-03-15 15:30:41,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:41,526 INFO L470 AbstractCegarLoop]: Abstraction has 5107 states and 24293 transitions. [2022-03-15 15:30:41,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:41,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24293 transitions. [2022-03-15 15:30:41,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:41,536 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:41,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:41,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2022-03-15 15:30:41,537 INFO L402 AbstractCegarLoop]: === Iteration 510 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:41,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:41,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1908734307, now seen corresponding path program 505 times [2022-03-15 15:30:41,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:41,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366483174] [2022-03-15 15:30:41,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:41,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:41,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:41,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366483174] [2022-03-15 15:30:41,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366483174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:41,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:41,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:41,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777393626] [2022-03-15 15:30:41,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:41,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:41,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:41,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:41,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:41,675 INFO L87 Difference]: Start difference. First operand 5107 states and 24293 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:41,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:41,830 INFO L93 Difference]: Finished difference Result 10294 states and 46038 transitions. [2022-03-15 15:30:41,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:41,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:41,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:41,864 INFO L225 Difference]: With dead ends: 10294 [2022-03-15 15:30:41,864 INFO L226 Difference]: Without dead ends: 9879 [2022-03-15 15:30:41,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:41,865 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 166 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:41,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 219 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:41,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9879 states. [2022-03-15 15:30:41,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9879 to 5179. [2022-03-15 15:30:41,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.749517188103515) internal successors, (24593), 5178 states have internal predecessors, (24593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:42,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24593 transitions. [2022-03-15 15:30:42,001 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24593 transitions. Word has length 29 [2022-03-15 15:30:42,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:42,001 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24593 transitions. [2022-03-15 15:30:42,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:42,001 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24593 transitions. [2022-03-15 15:30:42,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:42,011 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:42,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:42,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2022-03-15 15:30:42,011 INFO L402 AbstractCegarLoop]: === Iteration 511 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:42,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:42,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2138021317, now seen corresponding path program 506 times [2022-03-15 15:30:42,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:42,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450227154] [2022-03-15 15:30:42,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:42,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:42,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:42,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:42,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450227154] [2022-03-15 15:30:42,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450227154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:42,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:42,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:42,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555880316] [2022-03-15 15:30:42,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:42,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:42,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:42,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:42,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:42,124 INFO L87 Difference]: Start difference. First operand 5179 states and 24593 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:42,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:42,301 INFO L93 Difference]: Finished difference Result 10356 states and 46259 transitions. [2022-03-15 15:30:42,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:42,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:42,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:42,330 INFO L225 Difference]: With dead ends: 10356 [2022-03-15 15:30:42,331 INFO L226 Difference]: Without dead ends: 9831 [2022-03-15 15:30:42,331 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:42,331 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 179 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:42,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 211 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:42,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9831 states. [2022-03-15 15:30:42,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9831 to 5131. [2022-03-15 15:30:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.756530214424951) internal successors, (24401), 5130 states have internal predecessors, (24401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:42,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24401 transitions. [2022-03-15 15:30:42,462 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24401 transitions. Word has length 29 [2022-03-15 15:30:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:42,462 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24401 transitions. [2022-03-15 15:30:42,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:42,462 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24401 transitions. [2022-03-15 15:30:42,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:42,472 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:42,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:42,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2022-03-15 15:30:42,472 INFO L402 AbstractCegarLoop]: === Iteration 512 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:42,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1427832261, now seen corresponding path program 507 times [2022-03-15 15:30:42,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:42,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160882358] [2022-03-15 15:30:42,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:42,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:42,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:42,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:42,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160882358] [2022-03-15 15:30:42,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160882358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:42,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:42,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:42,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614379192] [2022-03-15 15:30:42,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:42,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:42,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:42,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:42,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:42,591 INFO L87 Difference]: Start difference. First operand 5131 states and 24401 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:42,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:42,797 INFO L93 Difference]: Finished difference Result 10216 states and 45673 transitions. [2022-03-15 15:30:42,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:42,797 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:42,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:42,826 INFO L225 Difference]: With dead ends: 10216 [2022-03-15 15:30:42,827 INFO L226 Difference]: Without dead ends: 9801 [2022-03-15 15:30:42,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:42,827 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:42,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 232 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:42,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9801 states. [2022-03-15 15:30:42,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9801 to 5163. [2022-03-15 15:30:42,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.748740798140256) internal successors, (24513), 5162 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:42,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24513 transitions. [2022-03-15 15:30:42,965 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24513 transitions. Word has length 29 [2022-03-15 15:30:42,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:42,965 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 24513 transitions. [2022-03-15 15:30:42,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:42,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24513 transitions. [2022-03-15 15:30:42,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:42,975 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:42,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:42,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2022-03-15 15:30:42,975 INFO L402 AbstractCegarLoop]: === Iteration 513 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:42,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:42,976 INFO L85 PathProgramCache]: Analyzing trace with hash 613859869, now seen corresponding path program 508 times [2022-03-15 15:30:42,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:42,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336228374] [2022-03-15 15:30:42,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:42,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:43,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:43,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:43,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336228374] [2022-03-15 15:30:43,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336228374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:43,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:43,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:43,096 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617735835] [2022-03-15 15:30:43,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:43,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:43,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:43,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:43,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:43,096 INFO L87 Difference]: Start difference. First operand 5163 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:43,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:43,269 INFO L93 Difference]: Finished difference Result 10216 states and 45641 transitions. [2022-03-15 15:30:43,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:43,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:43,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:43,301 INFO L225 Difference]: With dead ends: 10216 [2022-03-15 15:30:43,301 INFO L226 Difference]: Without dead ends: 9769 [2022-03-15 15:30:43,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:43,301 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 149 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:43,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 225 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:43,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9769 states. [2022-03-15 15:30:43,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9769 to 5131. [2022-03-15 15:30:43,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.753411306042885) internal successors, (24385), 5130 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:43,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24385 transitions. [2022-03-15 15:30:43,445 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24385 transitions. Word has length 29 [2022-03-15 15:30:43,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:43,445 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24385 transitions. [2022-03-15 15:30:43,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:43,445 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24385 transitions. [2022-03-15 15:30:43,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:43,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:43,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:43,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2022-03-15 15:30:43,456 INFO L402 AbstractCegarLoop]: === Iteration 514 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:43,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:43,456 INFO L85 PathProgramCache]: Analyzing trace with hash 749555357, now seen corresponding path program 509 times [2022-03-15 15:30:43,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:43,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150532038] [2022-03-15 15:30:43,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:43,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:43,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:43,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150532038] [2022-03-15 15:30:43,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150532038] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:43,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:43,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:43,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335332363] [2022-03-15 15:30:43,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:43,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:43,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:43,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:43,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:43,586 INFO L87 Difference]: Start difference. First operand 5131 states and 24385 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:43,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:43,778 INFO L93 Difference]: Finished difference Result 10356 states and 46275 transitions. [2022-03-15 15:30:43,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:43,779 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:43,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:43,810 INFO L225 Difference]: With dead ends: 10356 [2022-03-15 15:30:43,810 INFO L226 Difference]: Without dead ends: 9879 [2022-03-15 15:30:43,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:43,810 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:43,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 213 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:43,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9879 states. [2022-03-15 15:30:43,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9879 to 5179. [2022-03-15 15:30:43,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.743337195828505) internal successors, (24561), 5178 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:43,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24561 transitions. [2022-03-15 15:30:43,951 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24561 transitions. Word has length 29 [2022-03-15 15:30:43,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:43,951 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24561 transitions. [2022-03-15 15:30:43,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:43,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24561 transitions. [2022-03-15 15:30:43,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:43,961 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:43,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:43,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2022-03-15 15:30:43,961 INFO L402 AbstractCegarLoop]: === Iteration 515 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:43,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:43,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1830617983, now seen corresponding path program 510 times [2022-03-15 15:30:43,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:43,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718389590] [2022-03-15 15:30:43,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:43,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:44,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:44,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718389590] [2022-03-15 15:30:44,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718389590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:44,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:44,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:44,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835119891] [2022-03-15 15:30:44,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:44,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:44,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:44,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:44,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:44,080 INFO L87 Difference]: Start difference. First operand 5179 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:44,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:44,247 INFO L93 Difference]: Finished difference Result 10294 states and 45958 transitions. [2022-03-15 15:30:44,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:44,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:44,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:44,276 INFO L225 Difference]: With dead ends: 10294 [2022-03-15 15:30:44,277 INFO L226 Difference]: Without dead ends: 9815 [2022-03-15 15:30:44,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:44,277 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 154 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:44,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 241 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:44,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9815 states. [2022-03-15 15:30:44,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9815 to 5115. [2022-03-15 15:30:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.757332811888932) internal successors, (24329), 5114 states have internal predecessors, (24329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:44,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24329 transitions. [2022-03-15 15:30:44,421 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24329 transitions. Word has length 29 [2022-03-15 15:30:44,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:44,421 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24329 transitions. [2022-03-15 15:30:44,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:44,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24329 transitions. [2022-03-15 15:30:44,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:44,431 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:44,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:44,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2022-03-15 15:30:44,431 INFO L402 AbstractCegarLoop]: === Iteration 516 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:44,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:44,432 INFO L85 PathProgramCache]: Analyzing trace with hash -13606557, now seen corresponding path program 511 times [2022-03-15 15:30:44,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:44,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404619225] [2022-03-15 15:30:44,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:44,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:44,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:44,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404619225] [2022-03-15 15:30:44,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404619225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:44,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:44,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:44,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821269832] [2022-03-15 15:30:44,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:44,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:44,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:44,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:44,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:44,573 INFO L87 Difference]: Start difference. First operand 5115 states and 24329 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:44,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:44,775 INFO L93 Difference]: Finished difference Result 10402 states and 46546 transitions. [2022-03-15 15:30:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:44,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:44,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:44,805 INFO L225 Difference]: With dead ends: 10402 [2022-03-15 15:30:44,806 INFO L226 Difference]: Without dead ends: 9987 [2022-03-15 15:30:44,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:44,806 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 165 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:44,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 240 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:44,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9987 states. [2022-03-15 15:30:44,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9987 to 5187. [2022-03-15 15:30:44,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.749132279213266) internal successors, (24629), 5186 states have internal predecessors, (24629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:44,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24629 transitions. [2022-03-15 15:30:44,937 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24629 transitions. Word has length 29 [2022-03-15 15:30:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:44,938 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24629 transitions. [2022-03-15 15:30:44,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24629 transitions. [2022-03-15 15:30:44,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:44,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:44,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:44,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2022-03-15 15:30:44,948 INFO L402 AbstractCegarLoop]: === Iteration 517 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:44,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:44,948 INFO L85 PathProgramCache]: Analyzing trace with hash 215680453, now seen corresponding path program 512 times [2022-03-15 15:30:44,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:44,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705348787] [2022-03-15 15:30:44,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:44,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:45,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:45,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:45,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705348787] [2022-03-15 15:30:45,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705348787] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:45,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:45,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:45,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646159941] [2022-03-15 15:30:45,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:45,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:45,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:45,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:45,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:45,058 INFO L87 Difference]: Start difference. First operand 5187 states and 24629 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:45,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:45,225 INFO L93 Difference]: Finished difference Result 10464 states and 46767 transitions. [2022-03-15 15:30:45,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:45,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:45,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:45,255 INFO L225 Difference]: With dead ends: 10464 [2022-03-15 15:30:45,255 INFO L226 Difference]: Without dead ends: 9939 [2022-03-15 15:30:45,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:45,255 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 147 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:45,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 235 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:45,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9939 states. [2022-03-15 15:30:45,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9939 to 5139. [2022-03-15 15:30:45,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.754573764110549) internal successors, (24429), 5138 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:45,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24429 transitions. [2022-03-15 15:30:45,459 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24429 transitions. Word has length 29 [2022-03-15 15:30:45,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:45,459 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24429 transitions. [2022-03-15 15:30:45,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:45,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24429 transitions. [2022-03-15 15:30:45,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:45,469 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:45,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:45,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2022-03-15 15:30:45,469 INFO L402 AbstractCegarLoop]: === Iteration 518 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:45,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:45,470 INFO L85 PathProgramCache]: Analyzing trace with hash 376355171, now seen corresponding path program 513 times [2022-03-15 15:30:45,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:45,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862002681] [2022-03-15 15:30:45,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:45,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:45,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:45,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862002681] [2022-03-15 15:30:45,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862002681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:45,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:45,569 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:45,569 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11507939] [2022-03-15 15:30:45,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:45,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:45,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:45,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:45,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:45,569 INFO L87 Difference]: Start difference. First operand 5139 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:45,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:45,747 INFO L93 Difference]: Finished difference Result 10396 states and 46505 transitions. [2022-03-15 15:30:45,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:45,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:45,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:45,777 INFO L225 Difference]: With dead ends: 10396 [2022-03-15 15:30:45,777 INFO L226 Difference]: Without dead ends: 9981 [2022-03-15 15:30:45,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:45,777 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 157 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:45,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 223 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:45,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9981 states. [2022-03-15 15:30:45,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9981 to 5187. [2022-03-15 15:30:45,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.744504435017355) internal successors, (24605), 5186 states have internal predecessors, (24605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:45,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24605 transitions. [2022-03-15 15:30:45,906 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24605 transitions. Word has length 29 [2022-03-15 15:30:45,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:45,906 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24605 transitions. [2022-03-15 15:30:45,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:45,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24605 transitions. [2022-03-15 15:30:45,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:45,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:45,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:45,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2022-03-15 15:30:45,917 INFO L402 AbstractCegarLoop]: === Iteration 519 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:45,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:45,917 INFO L85 PathProgramCache]: Analyzing trace with hash -966410013, now seen corresponding path program 514 times [2022-03-15 15:30:45,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:45,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563754570] [2022-03-15 15:30:45,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:45,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:46,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:46,051 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:46,051 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563754570] [2022-03-15 15:30:46,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563754570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:46,051 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:46,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:46,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472321565] [2022-03-15 15:30:46,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:46,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:46,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:46,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:46,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:46,051 INFO L87 Difference]: Start difference. First operand 5187 states and 24605 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:46,250 INFO L93 Difference]: Finished difference Result 10452 states and 46709 transitions. [2022-03-15 15:30:46,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:46,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:46,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:46,283 INFO L225 Difference]: With dead ends: 10452 [2022-03-15 15:30:46,283 INFO L226 Difference]: Without dead ends: 9933 [2022-03-15 15:30:46,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:46,283 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 153 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:46,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 218 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:46,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9933 states. [2022-03-15 15:30:46,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9933 to 5139. [2022-03-15 15:30:46,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.749902685869988) internal successors, (24405), 5138 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24405 transitions. [2022-03-15 15:30:46,446 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24405 transitions. Word has length 29 [2022-03-15 15:30:46,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:46,446 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24405 transitions. [2022-03-15 15:30:46,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:46,446 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24405 transitions. [2022-03-15 15:30:46,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:46,457 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:46,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:46,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2022-03-15 15:30:46,457 INFO L402 AbstractCegarLoop]: === Iteration 520 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:46,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:46,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1681521467, now seen corresponding path program 515 times [2022-03-15 15:30:46,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:46,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573367105] [2022-03-15 15:30:46,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:46,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:46,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:46,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:46,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573367105] [2022-03-15 15:30:46,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573367105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:46,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:46,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:46,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340797599] [2022-03-15 15:30:46,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:46,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:46,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:46,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:46,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:46,593 INFO L87 Difference]: Start difference. First operand 5139 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:46,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:46,797 INFO L93 Difference]: Finished difference Result 10548 states and 47159 transitions. [2022-03-15 15:30:46,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:46,798 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:46,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:46,832 INFO L225 Difference]: With dead ends: 10548 [2022-03-15 15:30:46,832 INFO L226 Difference]: Without dead ends: 10071 [2022-03-15 15:30:46,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:46,833 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 170 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:46,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 217 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:46,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10071 states. [2022-03-15 15:30:46,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10071 to 5215. [2022-03-15 15:30:46,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.73590333716916) internal successors, (24693), 5214 states have internal predecessors, (24693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24693 transitions. [2022-03-15 15:30:46,982 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24693 transitions. Word has length 29 [2022-03-15 15:30:46,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:46,982 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24693 transitions. [2022-03-15 15:30:46,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:46,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24693 transitions. [2022-03-15 15:30:46,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:46,993 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:46,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:46,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2022-03-15 15:30:46,993 INFO L402 AbstractCegarLoop]: === Iteration 521 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:46,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:46,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1872493731, now seen corresponding path program 516 times [2022-03-15 15:30:46,993 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:46,993 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345237264] [2022-03-15 15:30:46,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:46,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:47,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:47,156 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:47,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345237264] [2022-03-15 15:30:47,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345237264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:47,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:47,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:47,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732250715] [2022-03-15 15:30:47,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:47,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:47,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:47,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:47,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:47,157 INFO L87 Difference]: Start difference. First operand 5215 states and 24693 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:47,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:47,374 INFO L93 Difference]: Finished difference Result 10542 states and 47066 transitions. [2022-03-15 15:30:47,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:47,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:47,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:47,405 INFO L225 Difference]: With dead ends: 10542 [2022-03-15 15:30:47,406 INFO L226 Difference]: Without dead ends: 9971 [2022-03-15 15:30:47,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:47,406 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:47,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 211 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:47,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9971 states. [2022-03-15 15:30:47,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9971 to 5115. [2022-03-15 15:30:47,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.75576847868596) internal successors, (24321), 5114 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:47,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24321 transitions. [2022-03-15 15:30:47,545 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24321 transitions. Word has length 29 [2022-03-15 15:30:47,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:47,545 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24321 transitions. [2022-03-15 15:30:47,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:47,545 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24321 transitions. [2022-03-15 15:30:47,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:47,556 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:47,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:47,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2022-03-15 15:30:47,556 INFO L402 AbstractCegarLoop]: === Iteration 522 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:47,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:47,556 INFO L85 PathProgramCache]: Analyzing trace with hash -802992827, now seen corresponding path program 517 times [2022-03-15 15:30:47,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:47,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685738288] [2022-03-15 15:30:47,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:47,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:47,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:47,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:47,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685738288] [2022-03-15 15:30:47,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685738288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:47,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:47,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:47,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566324429] [2022-03-15 15:30:47,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:47,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:47,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:47,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:47,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:47,663 INFO L87 Difference]: Start difference. First operand 5115 states and 24321 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:47,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:47,823 INFO L93 Difference]: Finished difference Result 10210 states and 45656 transitions. [2022-03-15 15:30:47,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:47,823 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:47,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:47,856 INFO L225 Difference]: With dead ends: 10210 [2022-03-15 15:30:47,856 INFO L226 Difference]: Without dead ends: 9795 [2022-03-15 15:30:47,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:47,856 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 179 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:47,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 201 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:47,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9795 states. [2022-03-15 15:30:47,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9795 to 5163. [2022-03-15 15:30:47,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.748740798140256) internal successors, (24513), 5162 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:48,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24513 transitions. [2022-03-15 15:30:48,013 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24513 transitions. Word has length 29 [2022-03-15 15:30:48,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:48,013 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 24513 transitions. [2022-03-15 15:30:48,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:48,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24513 transitions. [2022-03-15 15:30:48,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:48,024 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:48,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:48,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2022-03-15 15:30:48,024 INFO L402 AbstractCegarLoop]: === Iteration 523 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:48,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:48,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1616965219, now seen corresponding path program 518 times [2022-03-15 15:30:48,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:48,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484751551] [2022-03-15 15:30:48,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:48,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:48,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:48,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:48,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484751551] [2022-03-15 15:30:48,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484751551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:48,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:48,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:48,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794187713] [2022-03-15 15:30:48,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:48,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:48,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:48,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:48,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:48,141 INFO L87 Difference]: Start difference. First operand 5163 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:48,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:48,312 INFO L93 Difference]: Finished difference Result 10210 states and 45624 transitions. [2022-03-15 15:30:48,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:48,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:48,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:48,343 INFO L225 Difference]: With dead ends: 10210 [2022-03-15 15:30:48,344 INFO L226 Difference]: Without dead ends: 9763 [2022-03-15 15:30:48,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:48,344 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 161 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:48,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 238 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:48,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9763 states. [2022-03-15 15:30:48,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9763 to 5131. [2022-03-15 15:30:48,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.753411306042885) internal successors, (24385), 5130 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:48,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24385 transitions. [2022-03-15 15:30:48,494 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24385 transitions. Word has length 29 [2022-03-15 15:30:48,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:48,494 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24385 transitions. [2022-03-15 15:30:48,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:48,494 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24385 transitions. [2022-03-15 15:30:48,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:48,505 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:48,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:48,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2022-03-15 15:30:48,505 INFO L402 AbstractCegarLoop]: === Iteration 524 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:48,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:48,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1458961827, now seen corresponding path program 519 times [2022-03-15 15:30:48,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:48,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058289269] [2022-03-15 15:30:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:48,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:48,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:48,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:48,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058289269] [2022-03-15 15:30:48,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058289269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:48,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:48,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:48,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68147324] [2022-03-15 15:30:48,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:48,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:48,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:48,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:48,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:48,615 INFO L87 Difference]: Start difference. First operand 5131 states and 24385 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:48,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:48,858 INFO L93 Difference]: Finished difference Result 10282 states and 45972 transitions. [2022-03-15 15:30:48,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:48,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:48,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:48,896 INFO L225 Difference]: With dead ends: 10282 [2022-03-15 15:30:48,896 INFO L226 Difference]: Without dead ends: 9867 [2022-03-15 15:30:48,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:48,896 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 163 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:48,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 226 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:48,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9867 states. [2022-03-15 15:30:49,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9867 to 5179. [2022-03-15 15:30:49,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.743337195828505) internal successors, (24561), 5178 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:49,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24561 transitions. [2022-03-15 15:30:49,063 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24561 transitions. Word has length 29 [2022-03-15 15:30:49,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:49,063 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24561 transitions. [2022-03-15 15:30:49,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:49,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24561 transitions. [2022-03-15 15:30:49,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:49,074 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:49,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:49,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2022-03-15 15:30:49,074 INFO L402 AbstractCegarLoop]: === Iteration 525 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:49,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:49,075 INFO L85 PathProgramCache]: Analyzing trace with hash 743191749, now seen corresponding path program 520 times [2022-03-15 15:30:49,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:49,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826414411] [2022-03-15 15:30:49,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:49,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:49,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:49,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:49,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826414411] [2022-03-15 15:30:49,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826414411] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:49,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:49,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:49,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450132346] [2022-03-15 15:30:49,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:49,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:49,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:49,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:49,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:49,197 INFO L87 Difference]: Start difference. First operand 5179 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:49,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:49,367 INFO L93 Difference]: Finished difference Result 10338 states and 46176 transitions. [2022-03-15 15:30:49,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:49,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:49,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:49,398 INFO L225 Difference]: With dead ends: 10338 [2022-03-15 15:30:49,398 INFO L226 Difference]: Without dead ends: 9819 [2022-03-15 15:30:49,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:49,398 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 151 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:49,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 232 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:49,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9819 states. [2022-03-15 15:30:49,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9819 to 5131. [2022-03-15 15:30:49,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.750292397660819) internal successors, (24369), 5130 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:49,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24369 transitions. [2022-03-15 15:30:49,549 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24369 transitions. Word has length 29 [2022-03-15 15:30:49,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:49,549 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24369 transitions. [2022-03-15 15:30:49,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:49,550 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24369 transitions. [2022-03-15 15:30:49,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:49,560 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:49,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:49,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2022-03-15 15:30:49,560 INFO L402 AbstractCegarLoop]: === Iteration 526 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:49,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:49,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1462973637, now seen corresponding path program 521 times [2022-03-15 15:30:49,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:49,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461553041] [2022-03-15 15:30:49,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:49,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:49,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:49,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461553041] [2022-03-15 15:30:49,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461553041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:49,676 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:49,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:49,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36232706] [2022-03-15 15:30:49,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:49,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:49,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:49,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:49,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:49,676 INFO L87 Difference]: Start difference. First operand 5131 states and 24369 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:49,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:49,830 INFO L93 Difference]: Finished difference Result 10282 states and 45956 transitions. [2022-03-15 15:30:49,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:49,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:49,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:49,865 INFO L225 Difference]: With dead ends: 10282 [2022-03-15 15:30:49,865 INFO L226 Difference]: Without dead ends: 9867 [2022-03-15 15:30:49,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:49,865 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:49,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 206 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:49,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9867 states. [2022-03-15 15:30:50,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9867 to 5179. [2022-03-15 15:30:50,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.740247199691001) internal successors, (24545), 5178 states have internal predecessors, (24545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24545 transitions. [2022-03-15 15:30:50,047 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24545 transitions. Word has length 29 [2022-03-15 15:30:50,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:50,047 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24545 transitions. [2022-03-15 15:30:50,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:50,047 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24545 transitions. [2022-03-15 15:30:50,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:50,059 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:50,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:50,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2022-03-15 15:30:50,059 INFO L402 AbstractCegarLoop]: === Iteration 527 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:50,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:50,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1669781603, now seen corresponding path program 522 times [2022-03-15 15:30:50,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:50,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87139574] [2022-03-15 15:30:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:50,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:50,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:50,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:50,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87139574] [2022-03-15 15:30:50,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87139574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:50,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:50,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:50,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49793046] [2022-03-15 15:30:50,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:50,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:50,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:50,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:50,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:50,227 INFO L87 Difference]: Start difference. First operand 5179 states and 24545 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:50,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:50,400 INFO L93 Difference]: Finished difference Result 10338 states and 46160 transitions. [2022-03-15 15:30:50,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:50,400 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:50,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:50,433 INFO L225 Difference]: With dead ends: 10338 [2022-03-15 15:30:50,433 INFO L226 Difference]: Without dead ends: 9803 [2022-03-15 15:30:50,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:50,433 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 156 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:50,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 198 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:50,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9803 states. [2022-03-15 15:30:50,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9803 to 5115. [2022-03-15 15:30:50,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.754204145482988) internal successors, (24313), 5114 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:50,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24313 transitions. [2022-03-15 15:30:50,581 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24313 transitions. Word has length 29 [2022-03-15 15:30:50,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:50,581 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24313 transitions. [2022-03-15 15:30:50,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:50,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24313 transitions. [2022-03-15 15:30:50,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:50,592 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:50,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:50,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2022-03-15 15:30:50,592 INFO L402 AbstractCegarLoop]: === Iteration 528 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:50,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:50,592 INFO L85 PathProgramCache]: Analyzing trace with hash 357763003, now seen corresponding path program 523 times [2022-03-15 15:30:50,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:50,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270592082] [2022-03-15 15:30:50,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:50,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:50,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:50,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:50,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270592082] [2022-03-15 15:30:50,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270592082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:50,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:50,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:50,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564278630] [2022-03-15 15:30:50,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:50,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:50,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:50,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:50,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:50,707 INFO L87 Difference]: Start difference. First operand 5115 states and 24313 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:50,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:50,861 INFO L93 Difference]: Finished difference Result 10464 states and 46799 transitions. [2022-03-15 15:30:50,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:50,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:50,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:50,895 INFO L225 Difference]: With dead ends: 10464 [2022-03-15 15:30:50,895 INFO L226 Difference]: Without dead ends: 9987 [2022-03-15 15:30:50,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:50,895 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 184 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:50,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 188 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:50,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9987 states. [2022-03-15 15:30:51,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9987 to 5187. [2022-03-15 15:30:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.7460470497493255) internal successors, (24613), 5186 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:51,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24613 transitions. [2022-03-15 15:30:51,077 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24613 transitions. Word has length 29 [2022-03-15 15:30:51,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:51,078 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24613 transitions. [2022-03-15 15:30:51,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:51,078 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24613 transitions. [2022-03-15 15:30:51,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:51,089 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:51,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:51,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2022-03-15 15:30:51,090 INFO L402 AbstractCegarLoop]: === Iteration 529 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:51,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:51,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1438825629, now seen corresponding path program 524 times [2022-03-15 15:30:51,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:51,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098247750] [2022-03-15 15:30:51,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:51,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:51,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:51,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:51,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098247750] [2022-03-15 15:30:51,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098247750] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:51,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:51,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:51,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901928248] [2022-03-15 15:30:51,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:51,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:51,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:51,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:51,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:51,211 INFO L87 Difference]: Start difference. First operand 5187 states and 24613 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:51,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:51,350 INFO L93 Difference]: Finished difference Result 10402 states and 46482 transitions. [2022-03-15 15:30:51,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:51,350 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:51,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:51,380 INFO L225 Difference]: With dead ends: 10402 [2022-03-15 15:30:51,380 INFO L226 Difference]: Without dead ends: 9939 [2022-03-15 15:30:51,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:51,381 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 182 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:51,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 187 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:51,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9939 states. [2022-03-15 15:30:51,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9939 to 5139. [2022-03-15 15:30:51,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.751459711950175) internal successors, (24413), 5138 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:51,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24413 transitions. [2022-03-15 15:30:51,524 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24413 transitions. Word has length 29 [2022-03-15 15:30:51,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:51,524 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24413 transitions. [2022-03-15 15:30:51,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:51,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24413 transitions. [2022-03-15 15:30:51,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:51,535 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:51,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:51,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2022-03-15 15:30:51,535 INFO L402 AbstractCegarLoop]: === Iteration 530 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:51,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:51,535 INFO L85 PathProgramCache]: Analyzing trace with hash -816196707, now seen corresponding path program 525 times [2022-03-15 15:30:51,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:51,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204356085] [2022-03-15 15:30:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:51,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:51,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:51,667 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:51,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204356085] [2022-03-15 15:30:51,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204356085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:51,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:51,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:51,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892909557] [2022-03-15 15:30:51,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:51,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:51,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:51,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:51,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:51,668 INFO L87 Difference]: Start difference. First operand 5139 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:51,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:51,858 INFO L93 Difference]: Finished difference Result 10548 states and 47167 transitions. [2022-03-15 15:30:51,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:51,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:51,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:51,893 INFO L225 Difference]: With dead ends: 10548 [2022-03-15 15:30:51,894 INFO L226 Difference]: Without dead ends: 10071 [2022-03-15 15:30:51,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:51,894 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 152 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:51,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 219 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:51,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10071 states. [2022-03-15 15:30:52,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10071 to 5215. [2022-03-15 15:30:52,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.737437667817415) internal successors, (24701), 5214 states have internal predecessors, (24701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:52,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24701 transitions. [2022-03-15 15:30:52,073 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24701 transitions. Word has length 29 [2022-03-15 15:30:52,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:52,073 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24701 transitions. [2022-03-15 15:30:52,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:52,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24701 transitions. [2022-03-15 15:30:52,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:52,084 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:52,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:52,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2022-03-15 15:30:52,084 INFO L402 AbstractCegarLoop]: === Iteration 531 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:52,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:52,084 INFO L85 PathProgramCache]: Analyzing trace with hash -766628963, now seen corresponding path program 526 times [2022-03-15 15:30:52,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:52,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769713042] [2022-03-15 15:30:52,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:52,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:52,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:52,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:52,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769713042] [2022-03-15 15:30:52,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769713042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:52,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:52,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:52,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343063051] [2022-03-15 15:30:52,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:52,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:52,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:52,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:52,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:52,279 INFO L87 Difference]: Start difference. First operand 5215 states and 24701 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:52,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:52,479 INFO L93 Difference]: Finished difference Result 10542 states and 47074 transitions. [2022-03-15 15:30:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:52,480 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:52,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:52,509 INFO L225 Difference]: With dead ends: 10542 [2022-03-15 15:30:52,509 INFO L226 Difference]: Without dead ends: 9995 [2022-03-15 15:30:52,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:52,510 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 166 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:52,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 196 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:52,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9995 states. [2022-03-15 15:30:52,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9995 to 5139. [2022-03-15 15:30:52,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.746788633709615) internal successors, (24389), 5138 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:52,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24389 transitions. [2022-03-15 15:30:52,650 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24389 transitions. Word has length 29 [2022-03-15 15:30:52,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:52,650 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24389 transitions. [2022-03-15 15:30:52,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:52,650 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24389 transitions. [2022-03-15 15:30:52,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:52,660 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:52,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:52,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2022-03-15 15:30:52,660 INFO L402 AbstractCegarLoop]: === Iteration 532 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:52,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:52,660 INFO L85 PathProgramCache]: Analyzing trace with hash -428191745, now seen corresponding path program 527 times [2022-03-15 15:30:52,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:52,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148477362] [2022-03-15 15:30:52,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:52,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:52,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:52,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:52,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148477362] [2022-03-15 15:30:52,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148477362] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:52,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:52,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:52,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36281601] [2022-03-15 15:30:52,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:52,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:52,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:52,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:52,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:52,814 INFO L87 Difference]: Start difference. First operand 5139 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:52,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:52,975 INFO L93 Difference]: Finished difference Result 10396 states and 46465 transitions. [2022-03-15 15:30:52,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:52,976 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:52,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:53,004 INFO L225 Difference]: With dead ends: 10396 [2022-03-15 15:30:53,004 INFO L226 Difference]: Without dead ends: 9981 [2022-03-15 15:30:53,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:53,004 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 152 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:53,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 231 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:53,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9981 states. [2022-03-15 15:30:53,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9981 to 5187. [2022-03-15 15:30:53,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.736791361357501) internal successors, (24565), 5186 states have internal predecessors, (24565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:53,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24565 transitions. [2022-03-15 15:30:53,139 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24565 transitions. Word has length 29 [2022-03-15 15:30:53,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:53,139 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24565 transitions. [2022-03-15 15:30:53,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:53,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24565 transitions. [2022-03-15 15:30:53,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:53,149 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:53,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:53,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2022-03-15 15:30:53,149 INFO L402 AbstractCegarLoop]: === Iteration 533 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:53,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:53,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1750695901, now seen corresponding path program 528 times [2022-03-15 15:30:53,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:53,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100124818] [2022-03-15 15:30:53,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:53,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:53,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:53,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:53,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100124818] [2022-03-15 15:30:53,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100124818] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:53,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:53,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:53,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330136903] [2022-03-15 15:30:53,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:53,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:53,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:53,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:53,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:53,258 INFO L87 Difference]: Start difference. First operand 5187 states and 24565 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:53,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:53,418 INFO L93 Difference]: Finished difference Result 10452 states and 46669 transitions. [2022-03-15 15:30:53,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:53,418 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:53,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:53,449 INFO L225 Difference]: With dead ends: 10452 [2022-03-15 15:30:53,449 INFO L226 Difference]: Without dead ends: 9901 [2022-03-15 15:30:53,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:53,449 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:53,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 216 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:53,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9901 states. [2022-03-15 15:30:53,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9901 to 5107. [2022-03-15 15:30:53,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.756952604778692) internal successors, (24289), 5106 states have internal predecessors, (24289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:53,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24289 transitions. [2022-03-15 15:30:53,590 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24289 transitions. Word has length 29 [2022-03-15 15:30:53,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:53,590 INFO L470 AbstractCegarLoop]: Abstraction has 5107 states and 24289 transitions. [2022-03-15 15:30:53,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:53,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24289 transitions. [2022-03-15 15:30:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:53,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:53,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:53,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2022-03-15 15:30:53,600 INFO L402 AbstractCegarLoop]: === Iteration 534 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:53,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:53,600 INFO L85 PathProgramCache]: Analyzing trace with hash -777227067, now seen corresponding path program 529 times [2022-03-15 15:30:53,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:53,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664543259] [2022-03-15 15:30:53,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:53,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:53,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:53,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:53,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664543259] [2022-03-15 15:30:53,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664543259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:53,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:53,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:53,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608590701] [2022-03-15 15:30:53,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:53,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:53,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:53,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:53,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:53,779 INFO L87 Difference]: Start difference. First operand 5107 states and 24289 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:53,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:53,987 INFO L93 Difference]: Finished difference Result 10576 states and 47389 transitions. [2022-03-15 15:30:53,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:53,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:53,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:54,021 INFO L225 Difference]: With dead ends: 10576 [2022-03-15 15:30:54,022 INFO L226 Difference]: Without dead ends: 10161 [2022-03-15 15:30:54,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:54,022 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 156 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:54,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 219 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:54,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2022-03-15 15:30:54,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 5191. [2022-03-15 15:30:54,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.750867052023121) internal successors, (24657), 5190 states have internal predecessors, (24657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:54,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24657 transitions. [2022-03-15 15:30:54,173 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24657 transitions. Word has length 29 [2022-03-15 15:30:54,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:54,173 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24657 transitions. [2022-03-15 15:30:54,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:54,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24657 transitions. [2022-03-15 15:30:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:54,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:54,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:54,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2022-03-15 15:30:54,183 INFO L402 AbstractCegarLoop]: === Iteration 535 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:54,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:54,184 INFO L85 PathProgramCache]: Analyzing trace with hash -547940057, now seen corresponding path program 530 times [2022-03-15 15:30:54,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:54,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232895516] [2022-03-15 15:30:54,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:54,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:54,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:54,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:54,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232895516] [2022-03-15 15:30:54,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232895516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:54,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:54,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:54,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403648140] [2022-03-15 15:30:54,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:54,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:54,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:54,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:54,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:54,354 INFO L87 Difference]: Start difference. First operand 5191 states and 24657 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:54,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:54,541 INFO L93 Difference]: Finished difference Result 10638 states and 47610 transitions. [2022-03-15 15:30:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:54,541 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:54,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:54,573 INFO L225 Difference]: With dead ends: 10638 [2022-03-15 15:30:54,573 INFO L226 Difference]: Without dead ends: 10113 [2022-03-15 15:30:54,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:54,573 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:54,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 217 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:54,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10113 states. [2022-03-15 15:30:54,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10113 to 5143. [2022-03-15 15:30:54,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.756320497860755) internal successors, (24457), 5142 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24457 transitions. [2022-03-15 15:30:54,702 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24457 transitions. Word has length 29 [2022-03-15 15:30:54,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:54,702 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24457 transitions. [2022-03-15 15:30:54,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:54,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24457 transitions. [2022-03-15 15:30:54,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:54,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:54,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:54,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2022-03-15 15:30:54,712 INFO L402 AbstractCegarLoop]: === Iteration 536 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:54,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:54,712 INFO L85 PathProgramCache]: Analyzing trace with hash 315743429, now seen corresponding path program 531 times [2022-03-15 15:30:54,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:54,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311834098] [2022-03-15 15:30:54,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:54,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:54,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:54,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311834098] [2022-03-15 15:30:54,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311834098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:54,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:54,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:54,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564670202] [2022-03-15 15:30:54,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:54,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:54,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:54,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:54,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:54,866 INFO L87 Difference]: Start difference. First operand 5143 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:55,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:55,057 INFO L93 Difference]: Finished difference Result 10574 states and 47360 transitions. [2022-03-15 15:30:55,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:55,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:55,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:55,088 INFO L225 Difference]: With dead ends: 10574 [2022-03-15 15:30:55,088 INFO L226 Difference]: Without dead ends: 10159 [2022-03-15 15:30:55,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:55,088 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 157 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:55,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 213 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:55,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10159 states. [2022-03-15 15:30:55,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10159 to 5191. [2022-03-15 15:30:55,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.746242774566474) internal successors, (24633), 5190 states have internal predecessors, (24633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:55,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24633 transitions. [2022-03-15 15:30:55,225 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24633 transitions. Word has length 29 [2022-03-15 15:30:55,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:55,225 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24633 transitions. [2022-03-15 15:30:55,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:55,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24633 transitions. [2022-03-15 15:30:55,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:55,235 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:55,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:55,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2022-03-15 15:30:55,236 INFO L402 AbstractCegarLoop]: === Iteration 537 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:55,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:55,236 INFO L85 PathProgramCache]: Analyzing trace with hash 857932869, now seen corresponding path program 532 times [2022-03-15 15:30:55,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:55,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977110771] [2022-03-15 15:30:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:55,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:55,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:55,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:55,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977110771] [2022-03-15 15:30:55,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977110771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:55,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:55,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:55,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370249996] [2022-03-15 15:30:55,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:55,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:55,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:55,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:55,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:55,404 INFO L87 Difference]: Start difference. First operand 5191 states and 24633 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:55,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:55,581 INFO L93 Difference]: Finished difference Result 10634 states and 47576 transitions. [2022-03-15 15:30:55,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:55,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:55,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:55,613 INFO L225 Difference]: With dead ends: 10634 [2022-03-15 15:30:55,613 INFO L226 Difference]: Without dead ends: 10111 [2022-03-15 15:30:55,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:55,613 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 163 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:55,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 221 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:55,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10111 states. [2022-03-15 15:30:55,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10111 to 5143. [2022-03-15 15:30:55,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.751653053286659) internal successors, (24433), 5142 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:55,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24433 transitions. [2022-03-15 15:30:55,763 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24433 transitions. Word has length 29 [2022-03-15 15:30:55,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:55,763 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24433 transitions. [2022-03-15 15:30:55,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:55,763 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24433 transitions. [2022-03-15 15:30:55,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:55,773 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:55,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:55,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2022-03-15 15:30:55,773 INFO L402 AbstractCegarLoop]: === Iteration 538 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:55,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:55,774 INFO L85 PathProgramCache]: Analyzing trace with hash 815020071, now seen corresponding path program 533 times [2022-03-15 15:30:55,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:55,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462944620] [2022-03-15 15:30:55,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:55,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:55,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:55,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462944620] [2022-03-15 15:30:55,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462944620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:55,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:55,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:55,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228712758] [2022-03-15 15:30:55,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:55,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:55,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:55,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:55,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:55,942 INFO L87 Difference]: Start difference. First operand 5143 states and 24433 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:56,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:56,143 INFO L93 Difference]: Finished difference Result 10728 states and 48021 transitions. [2022-03-15 15:30:56,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:56,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:56,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:56,176 INFO L225 Difference]: With dead ends: 10728 [2022-03-15 15:30:56,176 INFO L226 Difference]: Without dead ends: 10251 [2022-03-15 15:30:56,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:56,177 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 146 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:56,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 230 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:56,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10251 states. [2022-03-15 15:30:56,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10251 to 5221. [2022-03-15 15:30:56,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.736781609195402) internal successors, (24726), 5220 states have internal predecessors, (24726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:56,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24726 transitions. [2022-03-15 15:30:56,324 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24726 transitions. Word has length 29 [2022-03-15 15:30:56,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:56,324 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24726 transitions. [2022-03-15 15:30:56,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:56,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24726 transitions. [2022-03-15 15:30:56,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:56,334 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:56,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:56,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2022-03-15 15:30:56,335 INFO L402 AbstractCegarLoop]: === Iteration 539 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:56,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:56,335 INFO L85 PathProgramCache]: Analyzing trace with hash -577124475, now seen corresponding path program 534 times [2022-03-15 15:30:56,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:56,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006104191] [2022-03-15 15:30:56,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:56,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:56,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:56,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:56,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006104191] [2022-03-15 15:30:56,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006104191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:56,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:56,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:56,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645411890] [2022-03-15 15:30:56,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:56,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:56,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:56,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:56,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:56,463 INFO L87 Difference]: Start difference. First operand 5221 states and 24726 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:56,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:56,632 INFO L93 Difference]: Finished difference Result 10726 states and 47938 transitions. [2022-03-15 15:30:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:56,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:56,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:56,664 INFO L225 Difference]: With dead ends: 10726 [2022-03-15 15:30:56,664 INFO L226 Difference]: Without dead ends: 10149 [2022-03-15 15:30:56,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:56,664 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 177 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:56,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 203 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:56,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10149 states. [2022-03-15 15:30:56,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10149 to 5119. [2022-03-15 15:30:56,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.756740914419695) internal successors, (24345), 5118 states have internal predecessors, (24345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:56,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24345 transitions. [2022-03-15 15:30:56,805 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24345 transitions. Word has length 29 [2022-03-15 15:30:56,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:56,805 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24345 transitions. [2022-03-15 15:30:56,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24345 transitions. [2022-03-15 15:30:56,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:56,815 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:56,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:56,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2022-03-15 15:30:56,816 INFO L402 AbstractCegarLoop]: === Iteration 540 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:56,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:56,816 INFO L85 PathProgramCache]: Analyzing trace with hash 680820003, now seen corresponding path program 535 times [2022-03-15 15:30:56,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:56,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597676184] [2022-03-15 15:30:56,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:56,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:56,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:56,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:56,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597676184] [2022-03-15 15:30:56,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597676184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:56,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:56,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:56,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052714333] [2022-03-15 15:30:56,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:56,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:56,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:56,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:56,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:56,941 INFO L87 Difference]: Start difference. First operand 5119 states and 24345 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:57,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:57,108 INFO L93 Difference]: Finished difference Result 10570 states and 47358 transitions. [2022-03-15 15:30:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:57,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:57,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:57,143 INFO L225 Difference]: With dead ends: 10570 [2022-03-15 15:30:57,143 INFO L226 Difference]: Without dead ends: 10155 [2022-03-15 15:30:57,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:57,143 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:57,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 211 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:57,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10155 states. [2022-03-15 15:30:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10155 to 5191. [2022-03-15 15:30:57,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.7485549132947975) internal successors, (24645), 5190 states have internal predecessors, (24645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:57,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24645 transitions. [2022-03-15 15:30:57,289 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24645 transitions. Word has length 29 [2022-03-15 15:30:57,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:57,289 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24645 transitions. [2022-03-15 15:30:57,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:57,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24645 transitions. [2022-03-15 15:30:57,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:57,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:57,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:57,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2022-03-15 15:30:57,299 INFO L402 AbstractCegarLoop]: === Iteration 541 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:57,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:57,299 INFO L85 PathProgramCache]: Analyzing trace with hash 910107013, now seen corresponding path program 536 times [2022-03-15 15:30:57,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:57,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788932227] [2022-03-15 15:30:57,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:57,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:57,411 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:57,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788932227] [2022-03-15 15:30:57,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788932227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:57,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:57,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:57,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998564707] [2022-03-15 15:30:57,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:57,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:57,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:57,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:57,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:57,412 INFO L87 Difference]: Start difference. First operand 5191 states and 24645 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:57,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:57,593 INFO L93 Difference]: Finished difference Result 10632 states and 47579 transitions. [2022-03-15 15:30:57,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:57,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:57,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:57,622 INFO L225 Difference]: With dead ends: 10632 [2022-03-15 15:30:57,623 INFO L226 Difference]: Without dead ends: 10107 [2022-03-15 15:30:57,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:57,623 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 144 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:57,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 233 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:57,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10107 states. [2022-03-15 15:30:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10107 to 5143. [2022-03-15 15:30:57,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.753986775573707) internal successors, (24445), 5142 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:57,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24445 transitions. [2022-03-15 15:30:57,753 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24445 transitions. Word has length 29 [2022-03-15 15:30:57,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:57,753 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24445 transitions. [2022-03-15 15:30:57,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:57,753 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24445 transitions. [2022-03-15 15:30:57,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:57,763 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:57,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:57,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2022-03-15 15:30:57,763 INFO L402 AbstractCegarLoop]: === Iteration 542 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:57,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:57,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1668825915, now seen corresponding path program 537 times [2022-03-15 15:30:57,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:57,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805160686] [2022-03-15 15:30:57,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:57,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:57,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:57,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:57,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805160686] [2022-03-15 15:30:57,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805160686] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:57,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:57,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:57,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743280411] [2022-03-15 15:30:57,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:57,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:57,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:57,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:57,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:57,944 INFO L87 Difference]: Start difference. First operand 5143 states and 24445 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:58,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:58,132 INFO L93 Difference]: Finished difference Result 10564 states and 47317 transitions. [2022-03-15 15:30:58,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:58,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:58,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:58,161 INFO L225 Difference]: With dead ends: 10564 [2022-03-15 15:30:58,161 INFO L226 Difference]: Without dead ends: 10149 [2022-03-15 15:30:58,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:58,162 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 159 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:58,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 235 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:58,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10149 states. [2022-03-15 15:30:58,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10149 to 5191. [2022-03-15 15:30:58,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.74393063583815) internal successors, (24621), 5190 states have internal predecessors, (24621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:58,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24621 transitions. [2022-03-15 15:30:58,288 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24621 transitions. Word has length 29 [2022-03-15 15:30:58,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:58,288 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24621 transitions. [2022-03-15 15:30:58,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:58,288 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24621 transitions. [2022-03-15 15:30:58,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:58,297 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:58,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:58,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2022-03-15 15:30:58,298 INFO L402 AbstractCegarLoop]: === Iteration 543 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:58,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:58,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1283376197, now seen corresponding path program 538 times [2022-03-15 15:30:58,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:58,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593945991] [2022-03-15 15:30:58,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:58,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:58,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:58,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:58,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593945991] [2022-03-15 15:30:58,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593945991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:58,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:58,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:58,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098142838] [2022-03-15 15:30:58,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:58,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:58,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:58,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:58,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:58,424 INFO L87 Difference]: Start difference. First operand 5191 states and 24621 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:58,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:58,588 INFO L93 Difference]: Finished difference Result 10620 states and 47521 transitions. [2022-03-15 15:30:58,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:58,589 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:58,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:58,618 INFO L225 Difference]: With dead ends: 10620 [2022-03-15 15:30:58,618 INFO L226 Difference]: Without dead ends: 10101 [2022-03-15 15:30:58,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:58,618 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:58,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 190 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:58,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10101 states. [2022-03-15 15:30:58,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10101 to 5143. [2022-03-15 15:30:58,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.749319330999611) internal successors, (24421), 5142 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:58,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24421 transitions. [2022-03-15 15:30:58,754 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24421 transitions. Word has length 29 [2022-03-15 15:30:58,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:58,754 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24421 transitions. [2022-03-15 15:30:58,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:58,754 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24421 transitions. [2022-03-15 15:30:58,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:58,764 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:58,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:58,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2022-03-15 15:30:58,764 INFO L402 AbstractCegarLoop]: === Iteration 544 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:58,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:58,764 INFO L85 PathProgramCache]: Analyzing trace with hash 568264743, now seen corresponding path program 539 times [2022-03-15 15:30:58,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:58,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690967704] [2022-03-15 15:30:58,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:58,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:58,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:58,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:58,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690967704] [2022-03-15 15:30:58,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690967704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:58,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:58,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:58,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932588711] [2022-03-15 15:30:58,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:58,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:58,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:58,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:58,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:58,940 INFO L87 Difference]: Start difference. First operand 5143 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:59,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:59,193 INFO L93 Difference]: Finished difference Result 10716 states and 47971 transitions. [2022-03-15 15:30:59,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:59,194 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:59,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:59,223 INFO L225 Difference]: With dead ends: 10716 [2022-03-15 15:30:59,223 INFO L226 Difference]: Without dead ends: 10239 [2022-03-15 15:30:59,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:59,224 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 156 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:59,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 212 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:59,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10239 states. [2022-03-15 15:30:59,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10239 to 5219. [2022-03-15 15:30:59,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.73533921042545) internal successors, (24709), 5218 states have internal predecessors, (24709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:59,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24709 transitions. [2022-03-15 15:30:59,352 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24709 transitions. Word has length 29 [2022-03-15 15:30:59,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:59,352 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24709 transitions. [2022-03-15 15:30:59,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24709 transitions. [2022-03-15 15:30:59,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:59,362 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:59,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:59,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2022-03-15 15:30:59,363 INFO L402 AbstractCegarLoop]: === Iteration 545 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:59,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:59,363 INFO L85 PathProgramCache]: Analyzing trace with hash -172687355, now seen corresponding path program 540 times [2022-03-15 15:30:59,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:59,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674093576] [2022-03-15 15:30:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:59,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:30:59,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:30:59,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:30:59,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674093576] [2022-03-15 15:30:59,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674093576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:30:59,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:30:59,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:30:59,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434238231] [2022-03-15 15:30:59,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:30:59,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:30:59,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:30:59,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:30:59,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:30:59,517 INFO L87 Difference]: Start difference. First operand 5219 states and 24709 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:59,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:30:59,739 INFO L93 Difference]: Finished difference Result 10710 states and 47878 transitions. [2022-03-15 15:30:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:30:59,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:30:59,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:30:59,770 INFO L225 Difference]: With dead ends: 10710 [2022-03-15 15:30:59,771 INFO L226 Difference]: Without dead ends: 10139 [2022-03-15 15:30:59,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:30:59,771 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 156 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:30:59,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 233 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:30:59,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10139 states. [2022-03-15 15:30:59,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10139 to 5119. [2022-03-15 15:30:59,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.754396248534584) internal successors, (24333), 5118 states have internal predecessors, (24333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:59,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24333 transitions. [2022-03-15 15:30:59,921 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24333 transitions. Word has length 29 [2022-03-15 15:30:59,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:30:59,921 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24333 transitions. [2022-03-15 15:30:59,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:30:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24333 transitions. [2022-03-15 15:30:59,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:30:59,932 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:30:59,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:30:59,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2022-03-15 15:30:59,932 INFO L402 AbstractCegarLoop]: === Iteration 546 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:30:59,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:30:59,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1406809285, now seen corresponding path program 541 times [2022-03-15 15:30:59,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:30:59,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509485794] [2022-03-15 15:30:59,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:30:59,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:30:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:00,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:00,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:00,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509485794] [2022-03-15 15:31:00,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509485794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:00,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:00,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:00,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143296486] [2022-03-15 15:31:00,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:00,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:00,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:00,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:00,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:00,099 INFO L87 Difference]: Start difference. First operand 5119 states and 24333 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:00,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:00,305 INFO L93 Difference]: Finished difference Result 10566 states and 47336 transitions. [2022-03-15 15:31:00,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:00,305 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:00,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:00,338 INFO L225 Difference]: With dead ends: 10566 [2022-03-15 15:31:00,338 INFO L226 Difference]: Without dead ends: 10151 [2022-03-15 15:31:00,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:00,338 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 151 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:00,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 232 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:00,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10151 states. [2022-03-15 15:31:00,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10151 to 5191. [2022-03-15 15:31:00,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.746242774566474) internal successors, (24633), 5190 states have internal predecessors, (24633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:00,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24633 transitions. [2022-03-15 15:31:00,498 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24633 transitions. Word has length 29 [2022-03-15 15:31:00,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:00,498 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24633 transitions. [2022-03-15 15:31:00,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:00,498 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24633 transitions. [2022-03-15 15:31:00,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:00,509 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:00,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:00,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2022-03-15 15:31:00,509 INFO L402 AbstractCegarLoop]: === Iteration 547 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:00,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:00,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1948998725, now seen corresponding path program 542 times [2022-03-15 15:31:00,510 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:00,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795057248] [2022-03-15 15:31:00,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:00,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:00,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:00,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795057248] [2022-03-15 15:31:00,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795057248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:00,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:00,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:00,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773362539] [2022-03-15 15:31:00,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:00,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:00,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:00,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:00,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:00,652 INFO L87 Difference]: Start difference. First operand 5191 states and 24633 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:00,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:00,912 INFO L93 Difference]: Finished difference Result 10626 states and 47552 transitions. [2022-03-15 15:31:00,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:00,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:00,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:00,946 INFO L225 Difference]: With dead ends: 10626 [2022-03-15 15:31:00,946 INFO L226 Difference]: Without dead ends: 10103 [2022-03-15 15:31:00,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:00,947 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 148 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:00,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 219 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:00,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2022-03-15 15:31:01,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 5143. [2022-03-15 15:31:01,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.751653053286659) internal successors, (24433), 5142 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:01,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24433 transitions. [2022-03-15 15:31:01,101 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24433 transitions. Word has length 29 [2022-03-15 15:31:01,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:01,101 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24433 transitions. [2022-03-15 15:31:01,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:01,101 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24433 transitions. [2022-03-15 15:31:01,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:01,111 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:01,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:01,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2022-03-15 15:31:01,111 INFO L402 AbstractCegarLoop]: === Iteration 548 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:01,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:01,112 INFO L85 PathProgramCache]: Analyzing trace with hash -616252253, now seen corresponding path program 543 times [2022-03-15 15:31:01,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:01,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32596598] [2022-03-15 15:31:01,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:01,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:01,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:01,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:01,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32596598] [2022-03-15 15:31:01,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32596598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:01,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:01,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:01,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872483898] [2022-03-15 15:31:01,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:01,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:01,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:01,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:01,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:01,277 INFO L87 Difference]: Start difference. First operand 5143 states and 24433 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:01,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:01,491 INFO L93 Difference]: Finished difference Result 10562 states and 47300 transitions. [2022-03-15 15:31:01,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:01,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:01,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:01,529 INFO L225 Difference]: With dead ends: 10562 [2022-03-15 15:31:01,530 INFO L226 Difference]: Without dead ends: 10147 [2022-03-15 15:31:01,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:01,530 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 171 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:01,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 211 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:01,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10147 states. [2022-03-15 15:31:01,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10147 to 5191. [2022-03-15 15:31:01,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.741618497109827) internal successors, (24609), 5190 states have internal predecessors, (24609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:01,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24609 transitions. [2022-03-15 15:31:01,738 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24609 transitions. Word has length 29 [2022-03-15 15:31:01,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:01,738 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24609 transitions. [2022-03-15 15:31:01,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:01,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24609 transitions. [2022-03-15 15:31:01,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:01,751 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:01,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:01,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2022-03-15 15:31:01,751 INFO L402 AbstractCegarLoop]: === Iteration 549 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:01,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:01,752 INFO L85 PathProgramCache]: Analyzing trace with hash -638964667, now seen corresponding path program 544 times [2022-03-15 15:31:01,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:01,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600514844] [2022-03-15 15:31:01,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:01,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:01,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:01,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600514844] [2022-03-15 15:31:01,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600514844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:01,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:01,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:01,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972029765] [2022-03-15 15:31:01,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:01,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:01,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:01,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:01,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:01,932 INFO L87 Difference]: Start difference. First operand 5191 states and 24609 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:02,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:02,154 INFO L93 Difference]: Finished difference Result 10618 states and 47504 transitions. [2022-03-15 15:31:02,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:02,154 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:02,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:02,189 INFO L225 Difference]: With dead ends: 10618 [2022-03-15 15:31:02,190 INFO L226 Difference]: Without dead ends: 10099 [2022-03-15 15:31:02,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:02,190 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 149 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:02,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 238 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:02,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10099 states. [2022-03-15 15:31:02,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10099 to 5143. [2022-03-15 15:31:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.7469856087125635) internal successors, (24409), 5142 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24409 transitions. [2022-03-15 15:31:02,358 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24409 transitions. Word has length 29 [2022-03-15 15:31:02,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:02,358 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24409 transitions. [2022-03-15 15:31:02,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:02,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24409 transitions. [2022-03-15 15:31:02,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:02,369 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:02,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:02,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2022-03-15 15:31:02,369 INFO L402 AbstractCegarLoop]: === Iteration 550 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:02,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:02,369 INFO L85 PathProgramCache]: Analyzing trace with hash 41845701, now seen corresponding path program 545 times [2022-03-15 15:31:02,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:02,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927930852] [2022-03-15 15:31:02,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:02,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:02,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:02,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927930852] [2022-03-15 15:31:02,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927930852] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:02,484 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:02,484 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:02,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789638313] [2022-03-15 15:31:02,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:02,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:02,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:02,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:02,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:02,485 INFO L87 Difference]: Start difference. First operand 5143 states and 24409 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:02,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:02,665 INFO L93 Difference]: Finished difference Result 10710 states and 47944 transitions. [2022-03-15 15:31:02,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:02,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:02,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:02,699 INFO L225 Difference]: With dead ends: 10710 [2022-03-15 15:31:02,699 INFO L226 Difference]: Without dead ends: 10235 [2022-03-15 15:31:02,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:02,699 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:02,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 256 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:02,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10235 states. [2022-03-15 15:31:02,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10235 to 5219. [2022-03-15 15:31:02,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.733039478727481) internal successors, (24697), 5218 states have internal predecessors, (24697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:02,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24697 transitions. [2022-03-15 15:31:02,863 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24697 transitions. Word has length 29 [2022-03-15 15:31:02,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:02,863 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24697 transitions. [2022-03-15 15:31:02,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:02,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24697 transitions. [2022-03-15 15:31:02,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:02,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:02,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:02,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2022-03-15 15:31:02,874 INFO L402 AbstractCegarLoop]: === Iteration 551 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:02,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:02,875 INFO L85 PathProgramCache]: Analyzing trace with hash -2001491293, now seen corresponding path program 546 times [2022-03-15 15:31:02,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:02,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281666738] [2022-03-15 15:31:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:02,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:02,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:02,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281666738] [2022-03-15 15:31:02,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281666738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:02,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:02,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:02,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443311476] [2022-03-15 15:31:02,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:02,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:02,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:02,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:02,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:02,984 INFO L87 Difference]: Start difference. First operand 5219 states and 24697 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:03,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:03,156 INFO L93 Difference]: Finished difference Result 10706 states and 47856 transitions. [2022-03-15 15:31:03,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:03,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:03,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:03,192 INFO L225 Difference]: With dead ends: 10706 [2022-03-15 15:31:03,192 INFO L226 Difference]: Without dead ends: 10135 [2022-03-15 15:31:03,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:03,192 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 146 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:03,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 214 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:03,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10135 states. [2022-03-15 15:31:03,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10135 to 5119. [2022-03-15 15:31:03,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.7520515826494725) internal successors, (24321), 5118 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:03,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24321 transitions. [2022-03-15 15:31:03,364 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24321 transitions. Word has length 29 [2022-03-15 15:31:03,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:03,364 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24321 transitions. [2022-03-15 15:31:03,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:03,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24321 transitions. [2022-03-15 15:31:03,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:03,376 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:03,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:03,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2022-03-15 15:31:03,376 INFO L402 AbstractCegarLoop]: === Iteration 552 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:03,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:03,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1329891545, now seen corresponding path program 547 times [2022-03-15 15:31:03,377 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:03,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096089073] [2022-03-15 15:31:03,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:03,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:03,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:03,496 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:03,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096089073] [2022-03-15 15:31:03,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096089073] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:03,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:03,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:03,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899009654] [2022-03-15 15:31:03,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:03,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:03,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:03,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:03,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:03,497 INFO L87 Difference]: Start difference. First operand 5119 states and 24321 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:03,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:03,654 INFO L93 Difference]: Finished difference Result 10854 states and 48642 transitions. [2022-03-15 15:31:03,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:03,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:03,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:03,700 INFO L225 Difference]: With dead ends: 10854 [2022-03-15 15:31:03,700 INFO L226 Difference]: Without dead ends: 10377 [2022-03-15 15:31:03,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:03,701 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 171 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:03,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 210 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:03,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10377 states. [2022-03-15 15:31:03,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10377 to 5235. [2022-03-15 15:31:03,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.741115781429118) internal successors, (24815), 5234 states have internal predecessors, (24815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:03,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24815 transitions. [2022-03-15 15:31:03,869 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24815 transitions. Word has length 29 [2022-03-15 15:31:03,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:03,869 INFO L470 AbstractCegarLoop]: Abstraction has 5235 states and 24815 transitions. [2022-03-15 15:31:03,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:03,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24815 transitions. [2022-03-15 15:31:03,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:03,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:03,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:03,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2022-03-15 15:31:03,880 INFO L402 AbstractCegarLoop]: === Iteration 553 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:03,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:03,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1572931205, now seen corresponding path program 548 times [2022-03-15 15:31:03,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:03,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098944595] [2022-03-15 15:31:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:03,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:03,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:03,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098944595] [2022-03-15 15:31:03,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098944595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:03,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:03,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:03,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698230312] [2022-03-15 15:31:03,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:03,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:03,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:03,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:03,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:03,995 INFO L87 Difference]: Start difference. First operand 5235 states and 24815 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:04,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:04,176 INFO L93 Difference]: Finished difference Result 10852 states and 48559 transitions. [2022-03-15 15:31:04,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:04,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:04,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:04,211 INFO L225 Difference]: With dead ends: 10852 [2022-03-15 15:31:04,211 INFO L226 Difference]: Without dead ends: 10299 [2022-03-15 15:31:04,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:04,212 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 147 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:04,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 246 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:04,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2022-03-15 15:31:04,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 5157. [2022-03-15 15:31:04,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.748642358417378) internal successors, (24484), 5156 states have internal predecessors, (24484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:04,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24484 transitions. [2022-03-15 15:31:04,375 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24484 transitions. Word has length 29 [2022-03-15 15:31:04,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:04,375 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24484 transitions. [2022-03-15 15:31:04,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:04,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24484 transitions. [2022-03-15 15:31:04,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:04,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:04,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:04,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2022-03-15 15:31:04,386 INFO L402 AbstractCegarLoop]: === Iteration 554 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:04,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:04,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2118278789, now seen corresponding path program 549 times [2022-03-15 15:31:04,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:04,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119521351] [2022-03-15 15:31:04,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:04,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:04,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:04,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119521351] [2022-03-15 15:31:04,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119521351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:04,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:04,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:04,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69572408] [2022-03-15 15:31:04,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:04,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:04,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:04,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:04,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:04,547 INFO L87 Difference]: Start difference. First operand 5157 states and 24484 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:04,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:04,753 INFO L93 Difference]: Finished difference Result 10848 states and 48585 transitions. [2022-03-15 15:31:04,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:04,753 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:04,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:04,784 INFO L225 Difference]: With dead ends: 10848 [2022-03-15 15:31:04,784 INFO L226 Difference]: Without dead ends: 10371 [2022-03-15 15:31:04,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:04,784 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 148 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:04,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 248 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:04,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10371 states. [2022-03-15 15:31:04,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10371 to 5233. [2022-03-15 15:31:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.734709480122324) internal successors, (24772), 5232 states have internal predecessors, (24772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:04,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24772 transitions. [2022-03-15 15:31:04,920 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24772 transitions. Word has length 29 [2022-03-15 15:31:04,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:04,920 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24772 transitions. [2022-03-15 15:31:04,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:04,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24772 transitions. [2022-03-15 15:31:04,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:04,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:04,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:04,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2022-03-15 15:31:04,930 INFO L402 AbstractCegarLoop]: === Iteration 555 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:04,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:04,931 INFO L85 PathProgramCache]: Analyzing trace with hash -333029627, now seen corresponding path program 550 times [2022-03-15 15:31:04,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:04,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255647071] [2022-03-15 15:31:04,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:04,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:05,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:05,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255647071] [2022-03-15 15:31:05,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255647071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:05,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:05,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:05,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87425572] [2022-03-15 15:31:05,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:05,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:05,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:05,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:05,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:05,069 INFO L87 Difference]: Start difference. First operand 5233 states and 24772 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:05,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:05,254 INFO L93 Difference]: Finished difference Result 10842 states and 48492 transitions. [2022-03-15 15:31:05,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:05,254 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:05,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:05,283 INFO L225 Difference]: With dead ends: 10842 [2022-03-15 15:31:05,284 INFO L226 Difference]: Without dead ends: 10295 [2022-03-15 15:31:05,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:05,287 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 152 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:05,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 207 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:05,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10295 states. [2022-03-15 15:31:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10295 to 5157. [2022-03-15 15:31:05,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.741272304111715) internal successors, (24446), 5156 states have internal predecessors, (24446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:05,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24446 transitions. [2022-03-15 15:31:05,461 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24446 transitions. Word has length 29 [2022-03-15 15:31:05,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:05,461 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24446 transitions. [2022-03-15 15:31:05,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:05,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24446 transitions. [2022-03-15 15:31:05,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:05,472 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:05,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:05,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2022-03-15 15:31:05,472 INFO L402 AbstractCegarLoop]: === Iteration 556 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:05,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:05,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1812431133, now seen corresponding path program 551 times [2022-03-15 15:31:05,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:05,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861270318] [2022-03-15 15:31:05,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:05,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:05,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:05,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:05,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861270318] [2022-03-15 15:31:05,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861270318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:05,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:05,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:05,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111677385] [2022-03-15 15:31:05,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:05,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:05,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:05,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:05,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:05,629 INFO L87 Difference]: Start difference. First operand 5157 states and 24446 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:05,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:05,833 INFO L93 Difference]: Finished difference Result 10844 states and 48537 transitions. [2022-03-15 15:31:05,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:05,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:05,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:05,868 INFO L225 Difference]: With dead ends: 10844 [2022-03-15 15:31:05,868 INFO L226 Difference]: Without dead ends: 10369 [2022-03-15 15:31:05,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:05,868 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 164 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:05,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 197 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:05,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10369 states. [2022-03-15 15:31:06,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10369 to 5233. [2022-03-15 15:31:06,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.727446483180428) internal successors, (24734), 5232 states have internal predecessors, (24734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:06,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24734 transitions. [2022-03-15 15:31:06,027 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24734 transitions. Word has length 29 [2022-03-15 15:31:06,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:06,027 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24734 transitions. [2022-03-15 15:31:06,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:06,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24734 transitions. [2022-03-15 15:31:06,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:06,038 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:06,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:06,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2022-03-15 15:31:06,038 INFO L402 AbstractCegarLoop]: === Iteration 557 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:06,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:06,038 INFO L85 PathProgramCache]: Analyzing trace with hash -731368507, now seen corresponding path program 552 times [2022-03-15 15:31:06,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:06,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796764363] [2022-03-15 15:31:06,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:06,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:06,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:06,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796764363] [2022-03-15 15:31:06,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796764363] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:06,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:06,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:06,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811511241] [2022-03-15 15:31:06,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:06,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:06,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:06,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:06,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:06,170 INFO L87 Difference]: Start difference. First operand 5233 states and 24734 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:06,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:06,392 INFO L93 Difference]: Finished difference Result 10840 states and 48449 transitions. [2022-03-15 15:31:06,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:06,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:06,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:06,427 INFO L225 Difference]: With dead ends: 10840 [2022-03-15 15:31:06,427 INFO L226 Difference]: Without dead ends: 10243 [2022-03-15 15:31:06,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:06,427 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 164 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:06,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 198 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:06,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10243 states. [2022-03-15 15:31:06,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10243 to 5107. [2022-03-15 15:31:06,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.756169212690952) internal successors, (24285), 5106 states have internal predecessors, (24285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:06,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24285 transitions. [2022-03-15 15:31:06,577 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24285 transitions. Word has length 29 [2022-03-15 15:31:06,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:06,578 INFO L470 AbstractCegarLoop]: Abstraction has 5107 states and 24285 transitions. [2022-03-15 15:31:06,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:06,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24285 transitions. [2022-03-15 15:31:06,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:06,588 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:06,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:06,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2022-03-15 15:31:06,588 INFO L402 AbstractCegarLoop]: === Iteration 558 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:06,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:06,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1667209177, now seen corresponding path program 553 times [2022-03-15 15:31:06,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:06,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361609231] [2022-03-15 15:31:06,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:06,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:06,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:06,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:06,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361609231] [2022-03-15 15:31:06,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361609231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:06,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:06,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:06,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400337013] [2022-03-15 15:31:06,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:06,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:06,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:06,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:06,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:06,759 INFO L87 Difference]: Start difference. First operand 5107 states and 24285 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:06,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:06,967 INFO L93 Difference]: Finished difference Result 10212 states and 45671 transitions. [2022-03-15 15:31:06,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:06,967 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:06,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:06,997 INFO L225 Difference]: With dead ends: 10212 [2022-03-15 15:31:06,997 INFO L226 Difference]: Without dead ends: 9797 [2022-03-15 15:31:06,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:06,997 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 167 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:06,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 224 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:07,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9797 states. [2022-03-15 15:31:07,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9797 to 5163. [2022-03-15 15:31:07,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.7502905850445565) internal successors, (24521), 5162 states have internal predecessors, (24521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:07,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24521 transitions. [2022-03-15 15:31:07,130 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24521 transitions. Word has length 29 [2022-03-15 15:31:07,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:07,130 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 24521 transitions. [2022-03-15 15:31:07,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:07,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24521 transitions. [2022-03-15 15:31:07,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:07,140 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:07,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:07,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2022-03-15 15:31:07,140 INFO L402 AbstractCegarLoop]: === Iteration 559 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:07,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:07,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1813785727, now seen corresponding path program 554 times [2022-03-15 15:31:07,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:07,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915487478] [2022-03-15 15:31:07,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:07,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:07,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:07,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915487478] [2022-03-15 15:31:07,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915487478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:07,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:07,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:07,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609589660] [2022-03-15 15:31:07,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:07,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:07,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:07,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:07,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:07,303 INFO L87 Difference]: Start difference. First operand 5163 states and 24521 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:07,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:07,494 INFO L93 Difference]: Finished difference Result 10212 states and 45639 transitions. [2022-03-15 15:31:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:07,494 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:07,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:07,524 INFO L225 Difference]: With dead ends: 10212 [2022-03-15 15:31:07,524 INFO L226 Difference]: Without dead ends: 9765 [2022-03-15 15:31:07,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:07,524 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 166 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:07,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 219 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:07,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2022-03-15 15:31:07,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 5131. [2022-03-15 15:31:07,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.754970760233918) internal successors, (24393), 5130 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24393 transitions. [2022-03-15 15:31:07,662 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24393 transitions. Word has length 29 [2022-03-15 15:31:07,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:07,663 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24393 transitions. [2022-03-15 15:31:07,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:07,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24393 transitions. [2022-03-15 15:31:07,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:07,672 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:07,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:07,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2022-03-15 15:31:07,672 INFO L402 AbstractCegarLoop]: === Iteration 560 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:07,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:07,672 INFO L85 PathProgramCache]: Analyzing trace with hash 604696581, now seen corresponding path program 555 times [2022-03-15 15:31:07,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:07,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337102719] [2022-03-15 15:31:07,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:07,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:07,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:07,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:07,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337102719] [2022-03-15 15:31:07,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337102719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:07,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:07,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:07,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645925764] [2022-03-15 15:31:07,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:07,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:07,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:07,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:07,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:07,810 INFO L87 Difference]: Start difference. First operand 5131 states and 24393 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:08,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:08,032 INFO L93 Difference]: Finished difference Result 10288 states and 45999 transitions. [2022-03-15 15:31:08,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:08,032 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:08,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:08,068 INFO L225 Difference]: With dead ends: 10288 [2022-03-15 15:31:08,068 INFO L226 Difference]: Without dead ends: 9873 [2022-03-15 15:31:08,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:08,068 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 169 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:08,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 216 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:08,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9873 states. [2022-03-15 15:31:08,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9873 to 5179. [2022-03-15 15:31:08,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.744882193897258) internal successors, (24569), 5178 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24569 transitions. [2022-03-15 15:31:08,230 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24569 transitions. Word has length 29 [2022-03-15 15:31:08,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:08,231 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24569 transitions. [2022-03-15 15:31:08,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:08,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24569 transitions. [2022-03-15 15:31:08,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:08,243 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:08,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:08,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2022-03-15 15:31:08,244 INFO L402 AbstractCegarLoop]: === Iteration 561 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:08,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:08,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1828028505, now seen corresponding path program 556 times [2022-03-15 15:31:08,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:08,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894186566] [2022-03-15 15:31:08,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:08,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:08,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:08,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894186566] [2022-03-15 15:31:08,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894186566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:08,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:08,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:08,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027982534] [2022-03-15 15:31:08,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:08,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:08,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:08,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:08,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:08,408 INFO L87 Difference]: Start difference. First operand 5179 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:08,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:08,603 INFO L93 Difference]: Finished difference Result 10348 states and 46215 transitions. [2022-03-15 15:31:08,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:08,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:08,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:08,636 INFO L225 Difference]: With dead ends: 10348 [2022-03-15 15:31:08,636 INFO L226 Difference]: Without dead ends: 9825 [2022-03-15 15:31:08,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:08,637 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 159 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:08,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 227 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:08,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9825 states. [2022-03-15 15:31:08,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9825 to 5131. [2022-03-15 15:31:08,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.7518518518518515) internal successors, (24377), 5130 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:08,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24377 transitions. [2022-03-15 15:31:08,817 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24377 transitions. Word has length 29 [2022-03-15 15:31:08,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:08,817 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24377 transitions. [2022-03-15 15:31:08,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:08,818 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24377 transitions. [2022-03-15 15:31:08,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:08,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:08,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:08,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2022-03-15 15:31:08,831 INFO L402 AbstractCegarLoop]: === Iteration 562 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:08,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:08,831 INFO L85 PathProgramCache]: Analyzing trace with hash -354898531, now seen corresponding path program 557 times [2022-03-15 15:31:08,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:08,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496077372] [2022-03-15 15:31:08,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:08,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:09,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:09,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:09,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496077372] [2022-03-15 15:31:09,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496077372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:09,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:09,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:09,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162440094] [2022-03-15 15:31:09,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:09,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:09,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:09,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:09,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:09,006 INFO L87 Difference]: Start difference. First operand 5131 states and 24377 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:09,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:09,193 INFO L93 Difference]: Finished difference Result 10288 states and 45983 transitions. [2022-03-15 15:31:09,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:09,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:09,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:09,224 INFO L225 Difference]: With dead ends: 10288 [2022-03-15 15:31:09,224 INFO L226 Difference]: Without dead ends: 9873 [2022-03-15 15:31:09,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:09,225 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 172 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:09,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 195 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:09,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9873 states. [2022-03-15 15:31:09,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9873 to 5179. [2022-03-15 15:31:09,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.741792197759753) internal successors, (24553), 5178 states have internal predecessors, (24553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:09,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24553 transitions. [2022-03-15 15:31:09,372 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24553 transitions. Word has length 29 [2022-03-15 15:31:09,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:09,372 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24553 transitions. [2022-03-15 15:31:09,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:09,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24553 transitions. [2022-03-15 15:31:09,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:09,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:09,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:09,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2022-03-15 15:31:09,383 INFO L402 AbstractCegarLoop]: === Iteration 563 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:09,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:09,383 INFO L85 PathProgramCache]: Analyzing trace with hash 726164095, now seen corresponding path program 558 times [2022-03-15 15:31:09,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:09,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59075079] [2022-03-15 15:31:09,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:09,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:09,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:09,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:09,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59075079] [2022-03-15 15:31:09,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59075079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:09,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:09,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:09,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429483401] [2022-03-15 15:31:09,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:09,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:09,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:09,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:09,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:09,562 INFO L87 Difference]: Start difference. First operand 5179 states and 24553 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:09,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:09,823 INFO L93 Difference]: Finished difference Result 10348 states and 46199 transitions. [2022-03-15 15:31:09,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:09,823 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:09,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:09,856 INFO L225 Difference]: With dead ends: 10348 [2022-03-15 15:31:09,856 INFO L226 Difference]: Without dead ends: 9809 [2022-03-15 15:31:09,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:09,856 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 152 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:09,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 217 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:31:09,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9809 states. [2022-03-15 15:31:09,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9809 to 5115. [2022-03-15 15:31:09,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.75576847868596) internal successors, (24321), 5114 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:09,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24321 transitions. [2022-03-15 15:31:09,998 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24321 transitions. Word has length 29 [2022-03-15 15:31:09,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:09,998 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24321 transitions. [2022-03-15 15:31:09,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:09,999 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24321 transitions. [2022-03-15 15:31:10,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:10,008 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:10,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:10,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2022-03-15 15:31:10,009 INFO L402 AbstractCegarLoop]: === Iteration 564 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:10,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:10,009 INFO L85 PathProgramCache]: Analyzing trace with hash -209162107, now seen corresponding path program 559 times [2022-03-15 15:31:10,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:10,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883485521] [2022-03-15 15:31:10,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:10,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:10,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:10,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883485521] [2022-03-15 15:31:10,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883485521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:10,154 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:10,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:10,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333749075] [2022-03-15 15:31:10,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:10,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:10,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:10,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:10,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:10,154 INFO L87 Difference]: Start difference. First operand 5115 states and 24321 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:10,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:10,345 INFO L93 Difference]: Finished difference Result 10208 states and 45651 transitions. [2022-03-15 15:31:10,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:10,346 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:10,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:10,376 INFO L225 Difference]: With dead ends: 10208 [2022-03-15 15:31:10,376 INFO L226 Difference]: Without dead ends: 9793 [2022-03-15 15:31:10,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:10,377 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 147 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:10,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 253 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:10,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2022-03-15 15:31:10,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 5163. [2022-03-15 15:31:10,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.748740798140256) internal successors, (24513), 5162 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:10,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24513 transitions. [2022-03-15 15:31:10,516 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24513 transitions. Word has length 29 [2022-03-15 15:31:10,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:10,516 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 24513 transitions. [2022-03-15 15:31:10,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:10,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24513 transitions. [2022-03-15 15:31:10,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:10,526 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:10,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:10,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2022-03-15 15:31:10,527 INFO L402 AbstractCegarLoop]: === Iteration 565 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:10,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:10,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1023134499, now seen corresponding path program 560 times [2022-03-15 15:31:10,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:10,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188191841] [2022-03-15 15:31:10,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:10,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:10,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:10,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:10,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188191841] [2022-03-15 15:31:10,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188191841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:10,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:10,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:10,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158928412] [2022-03-15 15:31:10,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:10,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:10,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:10,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:10,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:10,707 INFO L87 Difference]: Start difference. First operand 5163 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:10,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:10,912 INFO L93 Difference]: Finished difference Result 10208 states and 45619 transitions. [2022-03-15 15:31:10,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:10,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:10,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:10,945 INFO L225 Difference]: With dead ends: 10208 [2022-03-15 15:31:10,945 INFO L226 Difference]: Without dead ends: 9761 [2022-03-15 15:31:10,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:10,945 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 172 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:10,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 214 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:10,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9761 states. [2022-03-15 15:31:11,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9761 to 5131. [2022-03-15 15:31:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.753411306042885) internal successors, (24385), 5130 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:11,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24385 transitions. [2022-03-15 15:31:11,110 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24385 transitions. Word has length 29 [2022-03-15 15:31:11,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:11,111 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24385 transitions. [2022-03-15 15:31:11,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:11,111 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24385 transitions. [2022-03-15 15:31:11,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:11,121 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:11,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:11,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2022-03-15 15:31:11,122 INFO L402 AbstractCegarLoop]: === Iteration 566 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:11,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:11,122 INFO L85 PathProgramCache]: Analyzing trace with hash -686815099, now seen corresponding path program 561 times [2022-03-15 15:31:11,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:11,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243630235] [2022-03-15 15:31:11,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:11,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:11,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:11,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243630235] [2022-03-15 15:31:11,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243630235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:11,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:11,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:11,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759711567] [2022-03-15 15:31:11,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:11,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:11,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:11,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:11,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:11,297 INFO L87 Difference]: Start difference. First operand 5131 states and 24385 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:11,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:11,515 INFO L93 Difference]: Finished difference Result 10280 states and 45967 transitions. [2022-03-15 15:31:11,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:11,515 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:11,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:11,548 INFO L225 Difference]: With dead ends: 10280 [2022-03-15 15:31:11,549 INFO L226 Difference]: Without dead ends: 9865 [2022-03-15 15:31:11,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:11,549 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 176 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:11,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 205 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:11,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9865 states. [2022-03-15 15:31:11,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9865 to 5179. [2022-03-15 15:31:11,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.743337195828505) internal successors, (24561), 5178 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:11,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24561 transitions. [2022-03-15 15:31:11,698 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24561 transitions. Word has length 29 [2022-03-15 15:31:11,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:11,699 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24561 transitions. [2022-03-15 15:31:11,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:11,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24561 transitions. [2022-03-15 15:31:11,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:11,709 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:11,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:11,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2022-03-15 15:31:11,709 INFO L402 AbstractCegarLoop]: === Iteration 567 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:11,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:11,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1402585177, now seen corresponding path program 562 times [2022-03-15 15:31:11,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:11,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471635768] [2022-03-15 15:31:11,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:11,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:11,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:11,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:11,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471635768] [2022-03-15 15:31:11,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471635768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:11,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:11,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:11,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586766643] [2022-03-15 15:31:11,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:11,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:11,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:11,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:11,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:11,902 INFO L87 Difference]: Start difference. First operand 5179 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:12,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:12,104 INFO L93 Difference]: Finished difference Result 10336 states and 46171 transitions. [2022-03-15 15:31:12,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:12,104 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:12,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:12,139 INFO L225 Difference]: With dead ends: 10336 [2022-03-15 15:31:12,139 INFO L226 Difference]: Without dead ends: 9817 [2022-03-15 15:31:12,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:12,139 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 157 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:12,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 214 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:12,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9817 states. [2022-03-15 15:31:12,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9817 to 5131. [2022-03-15 15:31:12,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.750292397660819) internal successors, (24369), 5130 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:12,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24369 transitions. [2022-03-15 15:31:12,295 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24369 transitions. Word has length 29 [2022-03-15 15:31:12,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:12,296 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24369 transitions. [2022-03-15 15:31:12,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:12,296 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24369 transitions. [2022-03-15 15:31:12,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:12,306 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:12,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:12,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2022-03-15 15:31:12,306 INFO L402 AbstractCegarLoop]: === Iteration 568 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:12,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:12,306 INFO L85 PathProgramCache]: Analyzing trace with hash 686216733, now seen corresponding path program 563 times [2022-03-15 15:31:12,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:12,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343290963] [2022-03-15 15:31:12,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:12,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:12,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:12,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:12,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343290963] [2022-03-15 15:31:12,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343290963] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:12,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:12,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:12,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815166235] [2022-03-15 15:31:12,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:12,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:12,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:12,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:12,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:12,430 INFO L87 Difference]: Start difference. First operand 5131 states and 24369 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:12,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:12,601 INFO L93 Difference]: Finished difference Result 10280 states and 45951 transitions. [2022-03-15 15:31:12,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:12,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:12,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:12,636 INFO L225 Difference]: With dead ends: 10280 [2022-03-15 15:31:12,636 INFO L226 Difference]: Without dead ends: 9865 [2022-03-15 15:31:12,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:12,636 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 157 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:12,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 228 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:12,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9865 states. [2022-03-15 15:31:12,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9865 to 5179. [2022-03-15 15:31:12,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.740247199691001) internal successors, (24545), 5178 states have internal predecessors, (24545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:12,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24545 transitions. [2022-03-15 15:31:12,834 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24545 transitions. Word has length 29 [2022-03-15 15:31:12,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:12,834 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24545 transitions. [2022-03-15 15:31:12,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:12,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24545 transitions. [2022-03-15 15:31:12,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:12,844 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:12,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:12,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2022-03-15 15:31:12,845 INFO L402 AbstractCegarLoop]: === Iteration 569 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:12,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:12,845 INFO L85 PathProgramCache]: Analyzing trace with hash 479408767, now seen corresponding path program 564 times [2022-03-15 15:31:12,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:12,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276817282] [2022-03-15 15:31:12,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:12,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:12,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:12,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:12,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276817282] [2022-03-15 15:31:12,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276817282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:12,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:12,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:12,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528059211] [2022-03-15 15:31:12,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:12,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:12,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:12,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:12,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:12,970 INFO L87 Difference]: Start difference. First operand 5179 states and 24545 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:13,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:13,138 INFO L93 Difference]: Finished difference Result 10336 states and 46155 transitions. [2022-03-15 15:31:13,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:13,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:13,171 INFO L225 Difference]: With dead ends: 10336 [2022-03-15 15:31:13,171 INFO L226 Difference]: Without dead ends: 9801 [2022-03-15 15:31:13,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:13,172 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 173 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:13,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 198 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:13,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9801 states. [2022-03-15 15:31:13,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9801 to 5115. [2022-03-15 15:31:13,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.754204145482988) internal successors, (24313), 5114 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:13,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24313 transitions. [2022-03-15 15:31:13,336 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24313 transitions. Word has length 29 [2022-03-15 15:31:13,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:13,336 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24313 transitions. [2022-03-15 15:31:13,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:13,336 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24313 transitions. [2022-03-15 15:31:13,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:13,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:13,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:13,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2022-03-15 15:31:13,347 INFO L402 AbstractCegarLoop]: === Iteration 570 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:13,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:13,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1089667299, now seen corresponding path program 565 times [2022-03-15 15:31:13,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:13,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600851270] [2022-03-15 15:31:13,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:13,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:13,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:13,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:13,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600851270] [2022-03-15 15:31:13,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600851270] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:13,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:13,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:13,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761236602] [2022-03-15 15:31:13,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:13,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:13,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:13,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:13,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:13,490 INFO L87 Difference]: Start difference. First operand 5115 states and 24313 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:13,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:13,671 INFO L93 Difference]: Finished difference Result 10396 states and 46515 transitions. [2022-03-15 15:31:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:13,672 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:13,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:13,707 INFO L225 Difference]: With dead ends: 10396 [2022-03-15 15:31:13,707 INFO L226 Difference]: Without dead ends: 9981 [2022-03-15 15:31:13,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:13,707 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 182 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:13,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 199 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:13,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9981 states. [2022-03-15 15:31:13,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9981 to 5187. [2022-03-15 15:31:13,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.7460470497493255) internal successors, (24613), 5186 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:13,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24613 transitions. [2022-03-15 15:31:13,935 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24613 transitions. Word has length 29 [2022-03-15 15:31:13,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:13,935 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24613 transitions. [2022-03-15 15:31:13,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:13,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24613 transitions. [2022-03-15 15:31:13,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:13,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:13,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:13,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2022-03-15 15:31:13,946 INFO L402 AbstractCegarLoop]: === Iteration 571 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:13,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:13,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1343057787, now seen corresponding path program 566 times [2022-03-15 15:31:13,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:13,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125105058] [2022-03-15 15:31:13,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:13,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:14,099 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:14,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125105058] [2022-03-15 15:31:14,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125105058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:14,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:14,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:14,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225059566] [2022-03-15 15:31:14,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:14,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:14,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:14,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:14,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:14,100 INFO L87 Difference]: Start difference. First operand 5187 states and 24613 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:14,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:14,294 INFO L93 Difference]: Finished difference Result 10456 states and 46731 transitions. [2022-03-15 15:31:14,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:14,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:14,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:14,327 INFO L225 Difference]: With dead ends: 10456 [2022-03-15 15:31:14,327 INFO L226 Difference]: Without dead ends: 9933 [2022-03-15 15:31:14,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:14,327 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 185 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:14,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 196 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:14,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9933 states. [2022-03-15 15:31:14,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9933 to 5139. [2022-03-15 15:31:14,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.751459711950175) internal successors, (24413), 5138 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:14,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24413 transitions. [2022-03-15 15:31:14,468 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24413 transitions. Word has length 29 [2022-03-15 15:31:14,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:14,468 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24413 transitions. [2022-03-15 15:31:14,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:14,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24413 transitions. [2022-03-15 15:31:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:14,478 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:14,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:14,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2022-03-15 15:31:14,478 INFO L402 AbstractCegarLoop]: === Iteration 572 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:14,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:14,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1495698235, now seen corresponding path program 567 times [2022-03-15 15:31:14,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:14,479 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31171925] [2022-03-15 15:31:14,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:14,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:14,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:14,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:14,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31171925] [2022-03-15 15:31:14,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31171925] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:14,607 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:14,607 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:14,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090156827] [2022-03-15 15:31:14,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:14,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:14,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:14,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:14,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:14,608 INFO L87 Difference]: Start difference. First operand 5139 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:14,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:14,781 INFO L93 Difference]: Finished difference Result 10392 states and 46479 transitions. [2022-03-15 15:31:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:14,781 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:14,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:14,816 INFO L225 Difference]: With dead ends: 10392 [2022-03-15 15:31:14,816 INFO L226 Difference]: Without dead ends: 9977 [2022-03-15 15:31:14,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:14,817 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 152 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:14,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 231 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:14,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9977 states. [2022-03-15 15:31:14,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9977 to 5187. [2022-03-15 15:31:14,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.741419205553413) internal successors, (24589), 5186 states have internal predecessors, (24589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:14,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24589 transitions. [2022-03-15 15:31:14,983 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24589 transitions. Word has length 29 [2022-03-15 15:31:14,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:14,983 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24589 transitions. [2022-03-15 15:31:14,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:14,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24589 transitions. [2022-03-15 15:31:14,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:14,994 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:14,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:14,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2022-03-15 15:31:14,994 INFO L402 AbstractCegarLoop]: === Iteration 573 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:14,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:14,994 INFO L85 PathProgramCache]: Analyzing trace with hash 55461893, now seen corresponding path program 568 times [2022-03-15 15:31:14,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:14,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221150889] [2022-03-15 15:31:14,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:14,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:15,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:15,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:15,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221150889] [2022-03-15 15:31:15,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221150889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:15,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:15,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:15,102 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498602396] [2022-03-15 15:31:15,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:15,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:15,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:15,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:15,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:15,102 INFO L87 Difference]: Start difference. First operand 5187 states and 24589 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:15,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:15,275 INFO L93 Difference]: Finished difference Result 10448 states and 46683 transitions. [2022-03-15 15:31:15,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:15,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:15,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:15,307 INFO L225 Difference]: With dead ends: 10448 [2022-03-15 15:31:15,307 INFO L226 Difference]: Without dead ends: 9929 [2022-03-15 15:31:15,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:15,307 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 153 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:15,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 234 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:15,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9929 states. [2022-03-15 15:31:15,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9929 to 5139. [2022-03-15 15:31:15,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.746788633709615) internal successors, (24389), 5138 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:15,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24389 transitions. [2022-03-15 15:31:15,462 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24389 transitions. Word has length 29 [2022-03-15 15:31:15,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:15,462 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24389 transitions. [2022-03-15 15:31:15,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:15,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24389 transitions. [2022-03-15 15:31:15,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:15,473 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:15,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:15,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572 [2022-03-15 15:31:15,474 INFO L402 AbstractCegarLoop]: === Iteration 574 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:15,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:15,474 INFO L85 PathProgramCache]: Analyzing trace with hash -2003335385, now seen corresponding path program 569 times [2022-03-15 15:31:15,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:15,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369316474] [2022-03-15 15:31:15,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:15,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:15,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:15,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:15,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369316474] [2022-03-15 15:31:15,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369316474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:15,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:15,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:15,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309799014] [2022-03-15 15:31:15,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:15,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:15,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:15,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:15,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:15,586 INFO L87 Difference]: Start difference. First operand 5139 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:15,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:15,767 INFO L93 Difference]: Finished difference Result 10540 states and 47123 transitions. [2022-03-15 15:31:15,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:15,767 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:15,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:15,803 INFO L225 Difference]: With dead ends: 10540 [2022-03-15 15:31:15,803 INFO L226 Difference]: Without dead ends: 10065 [2022-03-15 15:31:15,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:15,803 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 166 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:15,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 216 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:15,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10065 states. [2022-03-15 15:31:15,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10065 to 5215. [2022-03-15 15:31:15,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.732834675872651) internal successors, (24677), 5214 states have internal predecessors, (24677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:15,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24677 transitions. [2022-03-15 15:31:15,967 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24677 transitions. Word has length 29 [2022-03-15 15:31:15,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:15,967 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24677 transitions. [2022-03-15 15:31:15,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:15,967 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24677 transitions. [2022-03-15 15:31:15,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:15,978 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:15,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:15,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573 [2022-03-15 15:31:15,978 INFO L402 AbstractCegarLoop]: === Iteration 575 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:15,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:15,979 INFO L85 PathProgramCache]: Analyzing trace with hash 248294917, now seen corresponding path program 570 times [2022-03-15 15:31:15,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:15,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529692437] [2022-03-15 15:31:15,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:15,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:16,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:16,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529692437] [2022-03-15 15:31:16,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529692437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:16,102 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:16,102 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:16,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952788566] [2022-03-15 15:31:16,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:16,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:16,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:16,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:16,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:16,103 INFO L87 Difference]: Start difference. First operand 5215 states and 24677 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:16,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:16,267 INFO L93 Difference]: Finished difference Result 10536 states and 47035 transitions. [2022-03-15 15:31:16,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:16,267 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:16,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:16,300 INFO L225 Difference]: With dead ends: 10536 [2022-03-15 15:31:16,300 INFO L226 Difference]: Without dead ends: 9965 [2022-03-15 15:31:16,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:16,300 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 163 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:16,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 196 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:16,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9965 states. [2022-03-15 15:31:16,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9965 to 5115. [2022-03-15 15:31:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.752639812280016) internal successors, (24305), 5114 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:16,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24305 transitions. [2022-03-15 15:31:16,485 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24305 transitions. Word has length 29 [2022-03-15 15:31:16,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:16,485 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24305 transitions. [2022-03-15 15:31:16,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:16,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24305 transitions. [2022-03-15 15:31:16,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:16,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:16,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:16,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574 [2022-03-15 15:31:16,498 INFO L402 AbstractCegarLoop]: === Iteration 576 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:16,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:16,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1602123707, now seen corresponding path program 571 times [2022-03-15 15:31:16,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:16,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299569257] [2022-03-15 15:31:16,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:16,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:16,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:16,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:16,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299569257] [2022-03-15 15:31:16,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299569257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:16,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:16,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:16,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343539740] [2022-03-15 15:31:16,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:16,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:16,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:16,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:16,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:16,611 INFO L87 Difference]: Start difference. First operand 5115 states and 24305 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:16,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:16,772 INFO L93 Difference]: Finished difference Result 10396 states and 46507 transitions. [2022-03-15 15:31:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:16,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:16,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:16,805 INFO L225 Difference]: With dead ends: 10396 [2022-03-15 15:31:16,805 INFO L226 Difference]: Without dead ends: 9981 [2022-03-15 15:31:16,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:16,806 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 152 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:16,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 240 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:16,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9981 states. [2022-03-15 15:31:16,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9981 to 5187. [2022-03-15 15:31:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.744504435017355) internal successors, (24605), 5186 states have internal predecessors, (24605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24605 transitions. [2022-03-15 15:31:16,960 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24605 transitions. Word has length 29 [2022-03-15 15:31:16,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:16,960 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24605 transitions. [2022-03-15 15:31:16,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:16,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24605 transitions. [2022-03-15 15:31:16,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:16,971 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:16,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:16,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2022-03-15 15:31:16,972 INFO L402 AbstractCegarLoop]: === Iteration 577 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:16,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:16,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1611780963, now seen corresponding path program 572 times [2022-03-15 15:31:16,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:16,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682997512] [2022-03-15 15:31:16,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:16,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:17,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:17,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:17,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682997512] [2022-03-15 15:31:17,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682997512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:17,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:17,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:17,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942302600] [2022-03-15 15:31:17,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:17,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:17,085 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:17,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:17,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:17,086 INFO L87 Difference]: Start difference. First operand 5187 states and 24605 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:17,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:17,285 INFO L93 Difference]: Finished difference Result 10456 states and 46723 transitions. [2022-03-15 15:31:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:17,285 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:17,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:17,317 INFO L225 Difference]: With dead ends: 10456 [2022-03-15 15:31:17,318 INFO L226 Difference]: Without dead ends: 9933 [2022-03-15 15:31:17,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:17,318 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 151 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:17,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 228 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:17,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9933 states. [2022-03-15 15:31:17,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9933 to 5139. [2022-03-15 15:31:17,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.749902685869988) internal successors, (24405), 5138 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:17,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24405 transitions. [2022-03-15 15:31:17,473 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24405 transitions. Word has length 29 [2022-03-15 15:31:17,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:17,473 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24405 transitions. [2022-03-15 15:31:17,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:17,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24405 transitions. [2022-03-15 15:31:17,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:17,483 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:17,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:17,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2022-03-15 15:31:17,484 INFO L402 AbstractCegarLoop]: === Iteration 578 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:17,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:17,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1121221661, now seen corresponding path program 573 times [2022-03-15 15:31:17,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:17,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238589482] [2022-03-15 15:31:17,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:17,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:17,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:17,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:17,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238589482] [2022-03-15 15:31:17,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238589482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:17,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:17,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:17,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901532201] [2022-03-15 15:31:17,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:17,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:17,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:17,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:17,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:17,646 INFO L87 Difference]: Start difference. First operand 5139 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:17,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:17,860 INFO L93 Difference]: Finished difference Result 10392 states and 46471 transitions. [2022-03-15 15:31:17,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:17,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:17,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:17,893 INFO L225 Difference]: With dead ends: 10392 [2022-03-15 15:31:17,893 INFO L226 Difference]: Without dead ends: 9977 [2022-03-15 15:31:17,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:17,894 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:17,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 224 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:17,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9977 states. [2022-03-15 15:31:18,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9977 to 5187. [2022-03-15 15:31:18,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.739876590821442) internal successors, (24581), 5186 states have internal predecessors, (24581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:18,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24581 transitions. [2022-03-15 15:31:18,051 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24581 transitions. Word has length 29 [2022-03-15 15:31:18,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:18,051 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24581 transitions. [2022-03-15 15:31:18,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:18,051 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24581 transitions. [2022-03-15 15:31:18,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:18,062 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:18,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:18,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2022-03-15 15:31:18,062 INFO L402 AbstractCegarLoop]: === Iteration 579 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:18,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:18,062 INFO L85 PathProgramCache]: Analyzing trace with hash -567024611, now seen corresponding path program 574 times [2022-03-15 15:31:18,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:18,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951761632] [2022-03-15 15:31:18,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:18,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:18,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:18,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:18,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951761632] [2022-03-15 15:31:18,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951761632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:18,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:18,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:18,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751038857] [2022-03-15 15:31:18,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:18,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:18,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:18,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:18,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:18,221 INFO L87 Difference]: Start difference. First operand 5187 states and 24581 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:18,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:18,448 INFO L93 Difference]: Finished difference Result 10448 states and 46675 transitions. [2022-03-15 15:31:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:18,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:18,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:18,486 INFO L225 Difference]: With dead ends: 10448 [2022-03-15 15:31:18,486 INFO L226 Difference]: Without dead ends: 9929 [2022-03-15 15:31:18,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:18,486 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 147 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:18,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 213 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:18,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9929 states. [2022-03-15 15:31:18,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9929 to 5139. [2022-03-15 15:31:18,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.745231607629428) internal successors, (24381), 5138 states have internal predecessors, (24381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:18,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24381 transitions. [2022-03-15 15:31:18,658 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24381 transitions. Word has length 29 [2022-03-15 15:31:18,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:18,658 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24381 transitions. [2022-03-15 15:31:18,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:18,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24381 transitions. [2022-03-15 15:31:18,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:18,670 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:18,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:18,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578 [2022-03-15 15:31:18,670 INFO L402 AbstractCegarLoop]: === Iteration 580 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:18,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1509226623, now seen corresponding path program 575 times [2022-03-15 15:31:18,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:18,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353969466] [2022-03-15 15:31:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:18,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:18,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:18,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353969466] [2022-03-15 15:31:18,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353969466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:18,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:18,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:18,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240934843] [2022-03-15 15:31:18,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:18,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:18,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:18,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:18,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:18,866 INFO L87 Difference]: Start difference. First operand 5139 states and 24381 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:19,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:19,104 INFO L93 Difference]: Finished difference Result 10540 states and 47115 transitions. [2022-03-15 15:31:19,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:19,104 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:19,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:19,140 INFO L225 Difference]: With dead ends: 10540 [2022-03-15 15:31:19,140 INFO L226 Difference]: Without dead ends: 10065 [2022-03-15 15:31:19,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:19,140 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 146 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:19,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 222 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:19,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10065 states. [2022-03-15 15:31:19,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10065 to 5215. [2022-03-15 15:31:19,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.731300345224396) internal successors, (24669), 5214 states have internal predecessors, (24669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:19,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24669 transitions. [2022-03-15 15:31:19,316 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24669 transitions. Word has length 29 [2022-03-15 15:31:19,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:19,317 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24669 transitions. [2022-03-15 15:31:19,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:19,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24669 transitions. [2022-03-15 15:31:19,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:19,328 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:19,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:19,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579 [2022-03-15 15:31:19,328 INFO L402 AbstractCegarLoop]: === Iteration 581 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:19,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:19,328 INFO L85 PathProgramCache]: Analyzing trace with hash 662429661, now seen corresponding path program 576 times [2022-03-15 15:31:19,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:19,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458589670] [2022-03-15 15:31:19,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:19,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:19,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:19,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:19,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458589670] [2022-03-15 15:31:19,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458589670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:19,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:19,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:19,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500004133] [2022-03-15 15:31:19,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:19,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:19,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:19,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:19,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:19,517 INFO L87 Difference]: Start difference. First operand 5215 states and 24669 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:19,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:19,746 INFO L93 Difference]: Finished difference Result 10536 states and 47027 transitions. [2022-03-15 15:31:19,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:19,746 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:19,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:19,781 INFO L225 Difference]: With dead ends: 10536 [2022-03-15 15:31:19,781 INFO L226 Difference]: Without dead ends: 9957 [2022-03-15 15:31:19,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:19,781 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 145 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:19,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 218 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:19,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9957 states. [2022-03-15 15:31:19,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9957 to 5107. [2022-03-15 15:31:19,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.755385820603212) internal successors, (24281), 5106 states have internal predecessors, (24281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:19,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24281 transitions. [2022-03-15 15:31:19,941 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24281 transitions. Word has length 29 [2022-03-15 15:31:19,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:19,941 INFO L470 AbstractCegarLoop]: Abstraction has 5107 states and 24281 transitions. [2022-03-15 15:31:19,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24281 transitions. [2022-03-15 15:31:19,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:19,952 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:19,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:19,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580 [2022-03-15 15:31:19,952 INFO L402 AbstractCegarLoop]: === Iteration 582 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:19,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:19,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1582396475, now seen corresponding path program 577 times [2022-03-15 15:31:19,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:19,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265929947] [2022-03-15 15:31:19,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:19,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:20,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:20,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:20,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265929947] [2022-03-15 15:31:20,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265929947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:20,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:20,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:20,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248476229] [2022-03-15 15:31:20,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:20,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:20,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:20,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:20,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:20,149 INFO L87 Difference]: Start difference. First operand 5107 states and 24281 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:20,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:20,365 INFO L93 Difference]: Finished difference Result 10638 states and 47650 transitions. [2022-03-15 15:31:20,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:20,366 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:20,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:20,400 INFO L225 Difference]: With dead ends: 10638 [2022-03-15 15:31:20,401 INFO L226 Difference]: Without dead ends: 10161 [2022-03-15 15:31:20,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:20,401 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 151 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:20,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 220 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:20,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2022-03-15 15:31:20,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 5191. [2022-03-15 15:31:20,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.7493256262042385) internal successors, (24649), 5190 states have internal predecessors, (24649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:20,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24649 transitions. [2022-03-15 15:31:20,570 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24649 transitions. Word has length 29 [2022-03-15 15:31:20,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:20,570 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24649 transitions. [2022-03-15 15:31:20,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:20,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24649 transitions. [2022-03-15 15:31:20,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:20,581 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:20,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:20,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2022-03-15 15:31:20,582 INFO L402 AbstractCegarLoop]: === Iteration 583 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:20,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:20,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1631508195, now seen corresponding path program 578 times [2022-03-15 15:31:20,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:20,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136721034] [2022-03-15 15:31:20,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:20,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:20,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:20,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:20,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136721034] [2022-03-15 15:31:20,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136721034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:20,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:20,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:20,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362947138] [2022-03-15 15:31:20,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:20,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:20,750 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:20,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:20,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:20,750 INFO L87 Difference]: Start difference. First operand 5191 states and 24649 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:20,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:20,931 INFO L93 Difference]: Finished difference Result 10576 states and 47333 transitions. [2022-03-15 15:31:20,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:20,932 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:20,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:20,961 INFO L225 Difference]: With dead ends: 10576 [2022-03-15 15:31:20,962 INFO L226 Difference]: Without dead ends: 10113 [2022-03-15 15:31:20,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:20,962 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 169 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:20,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 197 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:20,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10113 states. [2022-03-15 15:31:21,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10113 to 5143. [2022-03-15 15:31:21,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.754764683002723) internal successors, (24449), 5142 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:21,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24449 transitions. [2022-03-15 15:31:21,133 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24449 transitions. Word has length 29 [2022-03-15 15:31:21,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:21,133 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24449 transitions. [2022-03-15 15:31:21,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:21,133 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24449 transitions. [2022-03-15 15:31:21,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:21,143 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:21,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:21,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582 [2022-03-15 15:31:21,143 INFO L402 AbstractCegarLoop]: === Iteration 584 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:21,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:21,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1101494429, now seen corresponding path program 579 times [2022-03-15 15:31:21,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:21,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703662459] [2022-03-15 15:31:21,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:21,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:21,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:21,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:21,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703662459] [2022-03-15 15:31:21,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703662459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:21,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:21,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:21,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801320542] [2022-03-15 15:31:21,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:21,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:21,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:21,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:21,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:21,305 INFO L87 Difference]: Start difference. First operand 5143 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:21,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:21,484 INFO L93 Difference]: Finished difference Result 10728 states and 48037 transitions. [2022-03-15 15:31:21,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:21,485 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:21,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:21,515 INFO L225 Difference]: With dead ends: 10728 [2022-03-15 15:31:21,515 INFO L226 Difference]: Without dead ends: 10251 [2022-03-15 15:31:21,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:21,515 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 166 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:21,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 199 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:21,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10251 states. [2022-03-15 15:31:21,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10251 to 5221. [2022-03-15 15:31:21,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.739846743295019) internal successors, (24742), 5220 states have internal predecessors, (24742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:21,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24742 transitions. [2022-03-15 15:31:21,648 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24742 transitions. Word has length 29 [2022-03-15 15:31:21,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:21,648 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24742 transitions. [2022-03-15 15:31:21,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:21,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24742 transitions. [2022-03-15 15:31:21,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:21,658 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:21,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:21,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583 [2022-03-15 15:31:21,658 INFO L402 AbstractCegarLoop]: === Iteration 585 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:21,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:21,658 INFO L85 PathProgramCache]: Analyzing trace with hash -586751843, now seen corresponding path program 580 times [2022-03-15 15:31:21,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:21,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722334728] [2022-03-15 15:31:21,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:21,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:21,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:21,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:21,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722334728] [2022-03-15 15:31:21,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722334728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:21,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:21,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:21,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505562727] [2022-03-15 15:31:21,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:21,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:21,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:21,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:21,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:21,829 INFO L87 Difference]: Start difference. First operand 5221 states and 24742 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:22,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:22,041 INFO L93 Difference]: Finished difference Result 10726 states and 47954 transitions. [2022-03-15 15:31:22,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:22,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:22,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:22,072 INFO L225 Difference]: With dead ends: 10726 [2022-03-15 15:31:22,072 INFO L226 Difference]: Without dead ends: 10173 [2022-03-15 15:31:22,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:22,072 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 147 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:22,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 232 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:22,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10173 states. [2022-03-15 15:31:22,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10173 to 5143. [2022-03-15 15:31:22,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.750097238428627) internal successors, (24425), 5142 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:22,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24425 transitions. [2022-03-15 15:31:22,202 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24425 transitions. Word has length 29 [2022-03-15 15:31:22,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:22,202 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24425 transitions. [2022-03-15 15:31:22,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:22,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24425 transitions. [2022-03-15 15:31:22,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:22,211 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:22,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:22,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584 [2022-03-15 15:31:22,212 INFO L402 AbstractCegarLoop]: === Iteration 586 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:22,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:22,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1489499391, now seen corresponding path program 581 times [2022-03-15 15:31:22,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:22,212 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755972731] [2022-03-15 15:31:22,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:22,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:22,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:22,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:22,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755972731] [2022-03-15 15:31:22,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755972731] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:22,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:22,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:22,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643237432] [2022-03-15 15:31:22,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:22,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:22,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:22,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:22,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:22,362 INFO L87 Difference]: Start difference. First operand 5143 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:22,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:22,542 INFO L93 Difference]: Finished difference Result 10574 states and 47328 transitions. [2022-03-15 15:31:22,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:22,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:22,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:22,572 INFO L225 Difference]: With dead ends: 10574 [2022-03-15 15:31:22,572 INFO L226 Difference]: Without dead ends: 10159 [2022-03-15 15:31:22,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:22,572 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 157 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:22,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 210 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10159 states. [2022-03-15 15:31:22,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10159 to 5191. [2022-03-15 15:31:22,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.740077071290944) internal successors, (24601), 5190 states have internal predecessors, (24601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:22,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24601 transitions. [2022-03-15 15:31:22,703 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24601 transitions. Word has length 29 [2022-03-15 15:31:22,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:22,703 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24601 transitions. [2022-03-15 15:31:22,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:22,704 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24601 transitions. [2022-03-15 15:31:22,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:22,713 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:22,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:22,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585 [2022-03-15 15:31:22,713 INFO L402 AbstractCegarLoop]: === Iteration 587 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:22,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:22,713 INFO L85 PathProgramCache]: Analyzing trace with hash 642702429, now seen corresponding path program 582 times [2022-03-15 15:31:22,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:22,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036752921] [2022-03-15 15:31:22,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:22,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:22,853 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:22,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036752921] [2022-03-15 15:31:22,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036752921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:22,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:22,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:22,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31923732] [2022-03-15 15:31:22,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:22,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:22,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:22,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:22,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:22,854 INFO L87 Difference]: Start difference. First operand 5191 states and 24601 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:23,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:23,043 INFO L93 Difference]: Finished difference Result 10634 states and 47544 transitions. [2022-03-15 15:31:23,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:23,044 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:23,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:23,073 INFO L225 Difference]: With dead ends: 10634 [2022-03-15 15:31:23,073 INFO L226 Difference]: Without dead ends: 10087 [2022-03-15 15:31:23,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:23,073 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 167 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:23,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 196 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:23,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10087 states. [2022-03-15 15:31:23,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10087 to 5119. [2022-03-15 15:31:23,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.755177803829621) internal successors, (24337), 5118 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:23,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24337 transitions. [2022-03-15 15:31:23,213 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24337 transitions. Word has length 29 [2022-03-15 15:31:23,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:23,213 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24337 transitions. [2022-03-15 15:31:23,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:23,214 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24337 transitions. [2022-03-15 15:31:23,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:23,223 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:23,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:23,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586 [2022-03-15 15:31:23,224 INFO L402 AbstractCegarLoop]: === Iteration 588 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:23,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:23,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1002969059, now seen corresponding path program 583 times [2022-03-15 15:31:23,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:23,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729632510] [2022-03-15 15:31:23,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:23,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:23,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:23,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729632510] [2022-03-15 15:31:23,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729632510] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:23,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:23,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:23,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844502575] [2022-03-15 15:31:23,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:23,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:23,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:23,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:23,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:23,393 INFO L87 Difference]: Start difference. First operand 5119 states and 24337 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:23,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:23,639 INFO L93 Difference]: Finished difference Result 10632 states and 47619 transitions. [2022-03-15 15:31:23,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:23,639 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:23,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:23,670 INFO L225 Difference]: With dead ends: 10632 [2022-03-15 15:31:23,670 INFO L226 Difference]: Without dead ends: 10155 [2022-03-15 15:31:23,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:23,670 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 150 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:23,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 228 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:31:23,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10155 states. [2022-03-15 15:31:23,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10155 to 5191. [2022-03-15 15:31:23,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.747013487475916) internal successors, (24637), 5190 states have internal predecessors, (24637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:23,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24637 transitions. [2022-03-15 15:31:23,809 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24637 transitions. Word has length 29 [2022-03-15 15:31:23,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:23,809 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24637 transitions. [2022-03-15 15:31:23,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:23,809 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24637 transitions. [2022-03-15 15:31:23,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:23,818 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:23,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:23,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587 [2022-03-15 15:31:23,819 INFO L402 AbstractCegarLoop]: === Iteration 589 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:23,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:23,819 INFO L85 PathProgramCache]: Analyzing trace with hash 78093567, now seen corresponding path program 584 times [2022-03-15 15:31:23,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:23,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722650547] [2022-03-15 15:31:23,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:23,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:24,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:24,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722650547] [2022-03-15 15:31:24,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722650547] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:24,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:24,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:24,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196560810] [2022-03-15 15:31:24,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:24,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:24,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:24,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:24,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:24,005 INFO L87 Difference]: Start difference. First operand 5191 states and 24637 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:24,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:24,187 INFO L93 Difference]: Finished difference Result 10570 states and 47302 transitions. [2022-03-15 15:31:24,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:24,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:24,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:24,217 INFO L225 Difference]: With dead ends: 10570 [2022-03-15 15:31:24,217 INFO L226 Difference]: Without dead ends: 10107 [2022-03-15 15:31:24,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:24,218 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 171 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:24,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 202 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:24,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10107 states. [2022-03-15 15:31:24,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10107 to 5143. [2022-03-15 15:31:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.7524309607156745) internal successors, (24437), 5142 states have internal predecessors, (24437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:24,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24437 transitions. [2022-03-15 15:31:24,349 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24437 transitions. Word has length 29 [2022-03-15 15:31:24,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:24,349 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24437 transitions. [2022-03-15 15:31:24,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:24,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24437 transitions. [2022-03-15 15:31:24,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:24,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:24,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:24,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2022-03-15 15:31:24,359 INFO L402 AbstractCegarLoop]: === Iteration 590 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:24,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:24,359 INFO L85 PathProgramCache]: Analyzing trace with hash 90001437, now seen corresponding path program 585 times [2022-03-15 15:31:24,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:24,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188602196] [2022-03-15 15:31:24,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:24,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:24,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:24,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:24,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188602196] [2022-03-15 15:31:24,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188602196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:24,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:24,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:24,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839542166] [2022-03-15 15:31:24,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:24,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:24,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:24,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:24,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:24,528 INFO L87 Difference]: Start difference. First operand 5143 states and 24437 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:24,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:24,735 INFO L93 Difference]: Finished difference Result 10716 states and 47987 transitions. [2022-03-15 15:31:24,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:24,736 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:24,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:24,766 INFO L225 Difference]: With dead ends: 10716 [2022-03-15 15:31:24,766 INFO L226 Difference]: Without dead ends: 10239 [2022-03-15 15:31:24,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:24,766 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 153 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:24,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 231 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:24,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10239 states. [2022-03-15 15:31:24,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10239 to 5219. [2022-03-15 15:31:24,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.738405519356075) internal successors, (24725), 5218 states have internal predecessors, (24725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:24,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24725 transitions. [2022-03-15 15:31:24,897 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24725 transitions. Word has length 29 [2022-03-15 15:31:24,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:24,898 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24725 transitions. [2022-03-15 15:31:24,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:24,898 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24725 transitions. [2022-03-15 15:31:24,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:24,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:24,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:24,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589 [2022-03-15 15:31:24,908 INFO L402 AbstractCegarLoop]: === Iteration 591 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:24,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:24,908 INFO L85 PathProgramCache]: Analyzing trace with hash 139569181, now seen corresponding path program 586 times [2022-03-15 15:31:24,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:24,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672867340] [2022-03-15 15:31:24,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:24,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:25,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:25,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672867340] [2022-03-15 15:31:25,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672867340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:25,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:25,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:25,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110303699] [2022-03-15 15:31:25,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:25,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:25,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:25,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:25,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:25,077 INFO L87 Difference]: Start difference. First operand 5219 states and 24725 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:25,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:25,313 INFO L93 Difference]: Finished difference Result 10710 states and 47894 transitions. [2022-03-15 15:31:25,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:25,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:25,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:25,344 INFO L225 Difference]: With dead ends: 10710 [2022-03-15 15:31:25,344 INFO L226 Difference]: Without dead ends: 10163 [2022-03-15 15:31:25,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:25,344 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 139 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:25,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 264 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:25,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10163 states. [2022-03-15 15:31:25,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10163 to 5143. [2022-03-15 15:31:25,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.747763516141579) internal successors, (24413), 5142 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:25,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24413 transitions. [2022-03-15 15:31:25,477 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24413 transitions. Word has length 29 [2022-03-15 15:31:25,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:25,477 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24413 transitions. [2022-03-15 15:31:25,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:25,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24413 transitions. [2022-03-15 15:31:25,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:25,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:25,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:25,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590 [2022-03-15 15:31:25,487 INFO L402 AbstractCegarLoop]: === Iteration 592 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:25,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:25,487 INFO L85 PathProgramCache]: Analyzing trace with hash 478006399, now seen corresponding path program 587 times [2022-03-15 15:31:25,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:25,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570075232] [2022-03-15 15:31:25,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:25,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:25,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:25,672 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:25,672 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570075232] [2022-03-15 15:31:25,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570075232] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:25,672 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:25,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:25,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219905687] [2022-03-15 15:31:25,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:25,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:25,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:25,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:25,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:25,673 INFO L87 Difference]: Start difference. First operand 5143 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:25,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:25,855 INFO L93 Difference]: Finished difference Result 10564 states and 47285 transitions. [2022-03-15 15:31:25,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:25,855 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:25,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:25,887 INFO L225 Difference]: With dead ends: 10564 [2022-03-15 15:31:25,888 INFO L226 Difference]: Without dead ends: 10149 [2022-03-15 15:31:25,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:25,888 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 167 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:25,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 195 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:25,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10149 states. [2022-03-15 15:31:26,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10149 to 5191. [2022-03-15 15:31:26,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.73776493256262) internal successors, (24589), 5190 states have internal predecessors, (24589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24589 transitions. [2022-03-15 15:31:26,038 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24589 transitions. Word has length 29 [2022-03-15 15:31:26,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:26,038 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24589 transitions. [2022-03-15 15:31:26,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:26,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24589 transitions. [2022-03-15 15:31:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:26,048 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:26,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:26,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2022-03-15 15:31:26,048 INFO L402 AbstractCegarLoop]: === Iteration 593 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:26,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:26,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1638073251, now seen corresponding path program 588 times [2022-03-15 15:31:26,049 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:26,049 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133359602] [2022-03-15 15:31:26,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:26,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:26,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:26,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:26,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133359602] [2022-03-15 15:31:26,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133359602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:26,230 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:26,230 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:26,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205479230] [2022-03-15 15:31:26,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:26,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:26,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:26,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:26,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:26,230 INFO L87 Difference]: Start difference. First operand 5191 states and 24589 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:26,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:26,441 INFO L93 Difference]: Finished difference Result 10620 states and 47489 transitions. [2022-03-15 15:31:26,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:26,442 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:26,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:26,472 INFO L225 Difference]: With dead ends: 10620 [2022-03-15 15:31:26,472 INFO L226 Difference]: Without dead ends: 10077 [2022-03-15 15:31:26,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:26,473 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 150 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:26,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 231 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:26,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10077 states. [2022-03-15 15:31:26,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10077 to 5119. [2022-03-15 15:31:26,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.75283313794451) internal successors, (24325), 5118 states have internal predecessors, (24325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:26,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24325 transitions. [2022-03-15 15:31:26,613 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24325 transitions. Word has length 29 [2022-03-15 15:31:26,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:26,613 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24325 transitions. [2022-03-15 15:31:26,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:26,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24325 transitions. [2022-03-15 15:31:26,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:26,623 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:26,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:26,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592 [2022-03-15 15:31:26,624 INFO L402 AbstractCegarLoop]: === Iteration 594 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:26,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:26,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1792355329, now seen corresponding path program 589 times [2022-03-15 15:31:26,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:26,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801560378] [2022-03-15 15:31:26,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:26,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:26,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:26,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:26,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801560378] [2022-03-15 15:31:26,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801560378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:26,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:26,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:26,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121461657] [2022-03-15 15:31:26,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:26,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:26,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:26,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:26,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:26,805 INFO L87 Difference]: Start difference. First operand 5119 states and 24325 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:27,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:27,014 INFO L93 Difference]: Finished difference Result 10854 states and 48646 transitions. [2022-03-15 15:31:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:27,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:27,048 INFO L225 Difference]: With dead ends: 10854 [2022-03-15 15:31:27,048 INFO L226 Difference]: Without dead ends: 10377 [2022-03-15 15:31:27,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:27,049 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 163 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:27,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 216 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:27,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10377 states. [2022-03-15 15:31:27,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10377 to 5235. [2022-03-15 15:31:27,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.741880015284677) internal successors, (24819), 5234 states have internal predecessors, (24819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:27,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24819 transitions. [2022-03-15 15:31:27,198 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24819 transitions. Word has length 29 [2022-03-15 15:31:27,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:27,198 INFO L470 AbstractCegarLoop]: Abstraction has 5235 states and 24819 transitions. [2022-03-15 15:31:27,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:27,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24819 transitions. [2022-03-15 15:31:27,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:27,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:27,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:27,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2022-03-15 15:31:27,209 INFO L402 AbstractCegarLoop]: === Iteration 595 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:27,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:27,209 INFO L85 PathProgramCache]: Analyzing trace with hash 814365695, now seen corresponding path program 590 times [2022-03-15 15:31:27,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:27,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667723187] [2022-03-15 15:31:27,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:27,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:27,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:27,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:27,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667723187] [2022-03-15 15:31:27,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667723187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:27,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:27,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:27,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285329463] [2022-03-15 15:31:27,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:27,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:27,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:27,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:27,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:27,390 INFO L87 Difference]: Start difference. First operand 5235 states and 24819 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:27,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:27,593 INFO L93 Difference]: Finished difference Result 10852 states and 48563 transitions. [2022-03-15 15:31:27,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:27,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:27,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:27,625 INFO L225 Difference]: With dead ends: 10852 [2022-03-15 15:31:27,625 INFO L226 Difference]: Without dead ends: 10299 [2022-03-15 15:31:27,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:27,625 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 170 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:27,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 211 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:27,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2022-03-15 15:31:27,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 5157. [2022-03-15 15:31:27,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.749418153607448) internal successors, (24488), 5156 states have internal predecessors, (24488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:27,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24488 transitions. [2022-03-15 15:31:27,766 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24488 transitions. Word has length 29 [2022-03-15 15:31:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:27,766 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24488 transitions. [2022-03-15 15:31:27,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24488 transitions. [2022-03-15 15:31:27,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:27,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:27,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:27,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2022-03-15 15:31:27,777 INFO L402 AbstractCegarLoop]: === Iteration 596 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:27,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:27,777 INFO L85 PathProgramCache]: Analyzing trace with hash 479550429, now seen corresponding path program 591 times [2022-03-15 15:31:27,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:27,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454158609] [2022-03-15 15:31:27,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:27,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:27,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:27,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:27,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454158609] [2022-03-15 15:31:27,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454158609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:27,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:27,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:27,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865212823] [2022-03-15 15:31:27,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:27,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:27,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:27,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:27,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:27,958 INFO L87 Difference]: Start difference. First operand 5157 states and 24488 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:28,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:28,178 INFO L93 Difference]: Finished difference Result 10848 states and 48589 transitions. [2022-03-15 15:31:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:28,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:28,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:28,212 INFO L225 Difference]: With dead ends: 10848 [2022-03-15 15:31:28,212 INFO L226 Difference]: Without dead ends: 10371 [2022-03-15 15:31:28,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:28,227 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 148 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:28,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 229 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:28,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10371 states. [2022-03-15 15:31:28,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10371 to 5233. [2022-03-15 15:31:28,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.735474006116208) internal successors, (24776), 5232 states have internal predecessors, (24776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:28,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24776 transitions. [2022-03-15 15:31:28,463 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24776 transitions. Word has length 29 [2022-03-15 15:31:28,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:28,463 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24776 transitions. [2022-03-15 15:31:28,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:28,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24776 transitions. [2022-03-15 15:31:28,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:28,474 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:28,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:28,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable595 [2022-03-15 15:31:28,474 INFO L402 AbstractCegarLoop]: === Iteration 597 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:28,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:28,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1849170943, now seen corresponding path program 592 times [2022-03-15 15:31:28,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:28,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848961413] [2022-03-15 15:31:28,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:28,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:28,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:28,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:28,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848961413] [2022-03-15 15:31:28,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848961413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:28,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:28,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:28,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615256599] [2022-03-15 15:31:28,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:28,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:28,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:28,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:28,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:28,636 INFO L87 Difference]: Start difference. First operand 5233 states and 24776 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:28,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:28,830 INFO L93 Difference]: Finished difference Result 10842 states and 48496 transitions. [2022-03-15 15:31:28,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:28,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:28,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:28,862 INFO L225 Difference]: With dead ends: 10842 [2022-03-15 15:31:28,862 INFO L226 Difference]: Without dead ends: 10295 [2022-03-15 15:31:28,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:28,863 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 150 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:28,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 217 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:28,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10295 states. [2022-03-15 15:31:28,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10295 to 5157. [2022-03-15 15:31:28,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.742048099301784) internal successors, (24450), 5156 states have internal predecessors, (24450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:29,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24450 transitions. [2022-03-15 15:31:29,010 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24450 transitions. Word has length 29 [2022-03-15 15:31:29,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:29,010 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24450 transitions. [2022-03-15 15:31:29,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:29,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24450 transitions. [2022-03-15 15:31:29,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:29,021 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:29,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:29,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable596 [2022-03-15 15:31:29,021 INFO L402 AbstractCegarLoop]: === Iteration 598 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:29,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:29,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1204327423, now seen corresponding path program 593 times [2022-03-15 15:31:29,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:29,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563022392] [2022-03-15 15:31:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:29,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:29,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:29,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:29,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563022392] [2022-03-15 15:31:29,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563022392] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:29,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:29,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:29,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131063722] [2022-03-15 15:31:29,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:29,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:29,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:29,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:29,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:29,171 INFO L87 Difference]: Start difference. First operand 5157 states and 24450 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:29,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:29,377 INFO L93 Difference]: Finished difference Result 10844 states and 48541 transitions. [2022-03-15 15:31:29,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:29,377 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:29,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:29,409 INFO L225 Difference]: With dead ends: 10844 [2022-03-15 15:31:29,409 INFO L226 Difference]: Without dead ends: 10369 [2022-03-15 15:31:29,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:29,423 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 148 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:29,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 235 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:29,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10369 states. [2022-03-15 15:31:29,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10369 to 5233. [2022-03-15 15:31:29,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.728211009174312) internal successors, (24738), 5232 states have internal predecessors, (24738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:29,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24738 transitions. [2022-03-15 15:31:29,574 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24738 transitions. Word has length 29 [2022-03-15 15:31:29,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:29,574 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24738 transitions. [2022-03-15 15:31:29,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:29,574 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24738 transitions. [2022-03-15 15:31:29,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:29,584 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:29,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:29,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable597 [2022-03-15 15:31:29,585 INFO L402 AbstractCegarLoop]: === Iteration 599 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:29,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:29,585 INFO L85 PathProgramCache]: Analyzing trace with hash 357530461, now seen corresponding path program 594 times [2022-03-15 15:31:29,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:29,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563498786] [2022-03-15 15:31:29,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:29,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:29,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:29,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563498786] [2022-03-15 15:31:29,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563498786] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:29,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:29,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:29,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565214595] [2022-03-15 15:31:29,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:29,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:29,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:29,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:29,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:29,727 INFO L87 Difference]: Start difference. First operand 5233 states and 24738 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:29,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:29,920 INFO L93 Difference]: Finished difference Result 10840 states and 48453 transitions. [2022-03-15 15:31:29,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:29,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:29,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:29,958 INFO L225 Difference]: With dead ends: 10840 [2022-03-15 15:31:29,958 INFO L226 Difference]: Without dead ends: 10255 [2022-03-15 15:31:29,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:29,959 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 155 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:29,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 188 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:29,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10255 states. [2022-03-15 15:31:30,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10255 to 5119. [2022-03-15 15:31:30,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.7504884720593985) internal successors, (24313), 5118 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:30,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24313 transitions. [2022-03-15 15:31:30,137 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24313 transitions. Word has length 29 [2022-03-15 15:31:30,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:30,137 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24313 transitions. [2022-03-15 15:31:30,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:30,137 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24313 transitions. [2022-03-15 15:31:30,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:30,148 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:30,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:30,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable598 [2022-03-15 15:31:30,148 INFO L402 AbstractCegarLoop]: === Iteration 600 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:30,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:30,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1712834591, now seen corresponding path program 595 times [2022-03-15 15:31:30,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:30,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388720757] [2022-03-15 15:31:30,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:30,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:30,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:30,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:30,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388720757] [2022-03-15 15:31:30,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388720757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:30,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:30,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:30,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061999944] [2022-03-15 15:31:30,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:30,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:30,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:30,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:30,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:30,310 INFO L87 Difference]: Start difference. First operand 5119 states and 24313 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:30,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:30,472 INFO L93 Difference]: Finished difference Result 10566 states and 47316 transitions. [2022-03-15 15:31:30,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:30,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:30,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:30,505 INFO L225 Difference]: With dead ends: 10566 [2022-03-15 15:31:30,506 INFO L226 Difference]: Without dead ends: 10151 [2022-03-15 15:31:30,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:30,506 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 159 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:30,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 216 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:30,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10151 states. [2022-03-15 15:31:30,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10151 to 5191. [2022-03-15 15:31:30,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.742389210019268) internal successors, (24613), 5190 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:30,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24613 transitions. [2022-03-15 15:31:30,661 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24613 transitions. Word has length 29 [2022-03-15 15:31:30,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:30,661 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24613 transitions. [2022-03-15 15:31:30,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:30,661 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24613 transitions. [2022-03-15 15:31:30,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:30,671 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:30,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:30,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599 [2022-03-15 15:31:30,672 INFO L402 AbstractCegarLoop]: === Iteration 601 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:30,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:30,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1735335743, now seen corresponding path program 596 times [2022-03-15 15:31:30,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:30,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401840152] [2022-03-15 15:31:30,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:30,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:30,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:30,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:30,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401840152] [2022-03-15 15:31:30,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401840152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:30,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:30,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:30,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266943776] [2022-03-15 15:31:30,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:30,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:30,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:30,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:30,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:30,866 INFO L87 Difference]: Start difference. First operand 5191 states and 24613 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:31,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:31,080 INFO L93 Difference]: Finished difference Result 10626 states and 47532 transitions. [2022-03-15 15:31:31,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:31,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:31,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:31,117 INFO L225 Difference]: With dead ends: 10626 [2022-03-15 15:31:31,118 INFO L226 Difference]: Without dead ends: 10103 [2022-03-15 15:31:31,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:31,118 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 157 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:31,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 214 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:31,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2022-03-15 15:31:31,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 5143. [2022-03-15 15:31:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.747763516141579) internal successors, (24413), 5142 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:31,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24413 transitions. [2022-03-15 15:31:31,294 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24413 transitions. Word has length 29 [2022-03-15 15:31:31,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:31,294 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24413 transitions. [2022-03-15 15:31:31,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:31,294 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24413 transitions. [2022-03-15 15:31:31,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:31,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:31,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:31,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable600 [2022-03-15 15:31:31,305 INFO L402 AbstractCegarLoop]: === Iteration 602 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:31,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:31,306 INFO L85 PathProgramCache]: Analyzing trace with hash 559071167, now seen corresponding path program 597 times [2022-03-15 15:31:31,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:31,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277288061] [2022-03-15 15:31:31,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:31,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:31,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:31,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:31,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277288061] [2022-03-15 15:31:31,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277288061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:31,419 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:31,419 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:31,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285282605] [2022-03-15 15:31:31,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:31,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:31,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:31,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:31,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:31,420 INFO L87 Difference]: Start difference. First operand 5143 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:31,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:31,592 INFO L93 Difference]: Finished difference Result 10562 states and 47280 transitions. [2022-03-15 15:31:31,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:31,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:31,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:31,627 INFO L225 Difference]: With dead ends: 10562 [2022-03-15 15:31:31,627 INFO L226 Difference]: Without dead ends: 10147 [2022-03-15 15:31:31,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:31,627 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 154 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:31,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 212 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:31,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10147 states. [2022-03-15 15:31:31,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10147 to 5191. [2022-03-15 15:31:31,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.73776493256262) internal successors, (24589), 5190 states have internal predecessors, (24589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:31,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24589 transitions. [2022-03-15 15:31:31,788 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24589 transitions. Word has length 29 [2022-03-15 15:31:31,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:31,788 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24589 transitions. [2022-03-15 15:31:31,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24589 transitions. [2022-03-15 15:31:31,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:31,798 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:31,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:31,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable601 [2022-03-15 15:31:31,799 INFO L402 AbstractCegarLoop]: === Iteration 603 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:31,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:31,799 INFO L85 PathProgramCache]: Analyzing trace with hash -236955713, now seen corresponding path program 598 times [2022-03-15 15:31:31,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:31,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333207601] [2022-03-15 15:31:31,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:31,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:31,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:31,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:31,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333207601] [2022-03-15 15:31:31,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333207601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:31,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:31,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:31,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370188562] [2022-03-15 15:31:31,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:31,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:31,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:31,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:31,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:31,918 INFO L87 Difference]: Start difference. First operand 5191 states and 24589 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:32,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:32,099 INFO L93 Difference]: Finished difference Result 10618 states and 47484 transitions. [2022-03-15 15:31:32,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:32,099 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:32,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:32,134 INFO L225 Difference]: With dead ends: 10618 [2022-03-15 15:31:32,135 INFO L226 Difference]: Without dead ends: 10099 [2022-03-15 15:31:32,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:32,135 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 144 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:32,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 212 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:32,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10099 states. [2022-03-15 15:31:32,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10099 to 5143. [2022-03-15 15:31:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.743096071567483) internal successors, (24389), 5142 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24389 transitions. [2022-03-15 15:31:32,314 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24389 transitions. Word has length 29 [2022-03-15 15:31:32,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:32,314 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24389 transitions. [2022-03-15 15:31:32,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:32,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24389 transitions. [2022-03-15 15:31:32,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:32,325 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:32,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:32,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable602 [2022-03-15 15:31:32,325 INFO L402 AbstractCegarLoop]: === Iteration 604 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:32,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:32,325 INFO L85 PathProgramCache]: Analyzing trace with hash -297676899, now seen corresponding path program 599 times [2022-03-15 15:31:32,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:32,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322731202] [2022-03-15 15:31:32,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:32,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:32,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:32,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:32,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322731202] [2022-03-15 15:31:32,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322731202] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:32,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:32,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:32,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872478681] [2022-03-15 15:31:32,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:32,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:32,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:32,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:32,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:32,445 INFO L87 Difference]: Start difference. First operand 5143 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:32,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:32,631 INFO L93 Difference]: Finished difference Result 10710 states and 47924 transitions. [2022-03-15 15:31:32,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:32,631 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:32,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:32,664 INFO L225 Difference]: With dead ends: 10710 [2022-03-15 15:31:32,664 INFO L226 Difference]: Without dead ends: 10235 [2022-03-15 15:31:32,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:32,664 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 142 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:32,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 248 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:32,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10235 states. [2022-03-15 15:31:32,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10235 to 5219. [2022-03-15 15:31:32,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.729206592564201) internal successors, (24677), 5218 states have internal predecessors, (24677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:32,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24677 transitions. [2022-03-15 15:31:32,814 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24677 transitions. Word has length 29 [2022-03-15 15:31:32,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:32,814 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24677 transitions. [2022-03-15 15:31:32,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:32,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24677 transitions. [2022-03-15 15:31:32,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:32,824 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:32,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:32,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable603 [2022-03-15 15:31:32,825 INFO L402 AbstractCegarLoop]: === Iteration 605 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:32,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:32,825 INFO L85 PathProgramCache]: Analyzing trace with hash -778578945, now seen corresponding path program 600 times [2022-03-15 15:31:32,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:32,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310103677] [2022-03-15 15:31:32,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:32,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:32,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:32,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:32,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310103677] [2022-03-15 15:31:32,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310103677] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:32,958 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:32,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:32,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837297127] [2022-03-15 15:31:32,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:32,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:32,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:32,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:32,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:32,959 INFO L87 Difference]: Start difference. First operand 5219 states and 24677 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:33,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:33,129 INFO L93 Difference]: Finished difference Result 10706 states and 47836 transitions. [2022-03-15 15:31:33,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:33,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:33,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:33,164 INFO L225 Difference]: With dead ends: 10706 [2022-03-15 15:31:33,164 INFO L226 Difference]: Without dead ends: 10119 [2022-03-15 15:31:33,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:33,164 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 146 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:33,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 205 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:33,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10119 states. [2022-03-15 15:31:33,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10119 to 5103. [2022-03-15 15:31:33,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5102 states have (on average 4.757154057232458) internal successors, (24271), 5102 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:33,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 24271 transitions. [2022-03-15 15:31:33,322 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 24271 transitions. Word has length 29 [2022-03-15 15:31:33,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:33,322 INFO L470 AbstractCegarLoop]: Abstraction has 5103 states and 24271 transitions. [2022-03-15 15:31:33,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:33,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 24271 transitions. [2022-03-15 15:31:33,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:33,332 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:33,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:33,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable604 [2022-03-15 15:31:33,333 INFO L402 AbstractCegarLoop]: === Iteration 606 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:33,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:33,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1718484645, now seen corresponding path program 601 times [2022-03-15 15:31:33,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:33,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449079943] [2022-03-15 15:31:33,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:33,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:33,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:33,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:33,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449079943] [2022-03-15 15:31:33,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449079943] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:33,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:33,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:33,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120731505] [2022-03-15 15:31:33,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:33,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:33,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:33,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:33,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:33,449 INFO L87 Difference]: Start difference. First operand 5103 states and 24271 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:33,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:33,609 INFO L93 Difference]: Finished difference Result 12182 states and 54407 transitions. [2022-03-15 15:31:33,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:33,610 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:33,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:33,645 INFO L225 Difference]: With dead ends: 12182 [2022-03-15 15:31:33,646 INFO L226 Difference]: Without dead ends: 11640 [2022-03-15 15:31:33,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:33,646 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 177 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:33,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 197 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:33,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11640 states. [2022-03-15 15:31:33,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11640 to 5360. [2022-03-15 15:31:33,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5359 states have (on average 4.729053927971637) internal successors, (25343), 5359 states have internal predecessors, (25343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:33,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 25343 transitions. [2022-03-15 15:31:33,834 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 25343 transitions. Word has length 29 [2022-03-15 15:31:33,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:33,834 INFO L470 AbstractCegarLoop]: Abstraction has 5360 states and 25343 transitions. [2022-03-15 15:31:33,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:33,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 25343 transitions. [2022-03-15 15:31:33,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:33,844 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:33,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:33,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable605 [2022-03-15 15:31:33,845 INFO L402 AbstractCegarLoop]: === Iteration 607 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:33,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:33,845 INFO L85 PathProgramCache]: Analyzing trace with hash -637422019, now seen corresponding path program 602 times [2022-03-15 15:31:33,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:33,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633656192] [2022-03-15 15:31:33,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:33,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:33,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:33,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:33,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633656192] [2022-03-15 15:31:33,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633656192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:33,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:33,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:33,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115561821] [2022-03-15 15:31:33,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:33,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:33,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:33,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:33,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:33,968 INFO L87 Difference]: Start difference. First operand 5360 states and 25343 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:34,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:34,174 INFO L93 Difference]: Finished difference Result 12117 states and 54038 transitions. [2022-03-15 15:31:34,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:34,175 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:34,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:34,213 INFO L225 Difference]: With dead ends: 12117 [2022-03-15 15:31:34,213 INFO L226 Difference]: Without dead ends: 11497 [2022-03-15 15:31:34,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:34,213 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 173 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:34,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 200 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:34,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11497 states. [2022-03-15 15:31:34,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11497 to 5217. [2022-03-15 15:31:34,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.748466257668712) internal successors, (24768), 5216 states have internal predecessors, (24768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:34,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24768 transitions. [2022-03-15 15:31:34,376 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24768 transitions. Word has length 29 [2022-03-15 15:31:34,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:34,376 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24768 transitions. [2022-03-15 15:31:34,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:34,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24768 transitions. [2022-03-15 15:31:34,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:34,387 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:34,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:34,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable606 [2022-03-15 15:31:34,387 INFO L402 AbstractCegarLoop]: === Iteration 608 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:34,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:34,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2095580605, now seen corresponding path program 603 times [2022-03-15 15:31:34,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:34,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738149835] [2022-03-15 15:31:34,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:34,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:34,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:34,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:34,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738149835] [2022-03-15 15:31:34,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738149835] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:34,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:34,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:34,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776574469] [2022-03-15 15:31:34,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:34,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:34,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:34,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:34,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:34,506 INFO L87 Difference]: Start difference. First operand 5217 states and 24768 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:34,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:34,680 INFO L93 Difference]: Finished difference Result 12057 states and 53820 transitions. [2022-03-15 15:31:34,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:34,680 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:34,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:34,720 INFO L225 Difference]: With dead ends: 12057 [2022-03-15 15:31:34,720 INFO L226 Difference]: Without dead ends: 11515 [2022-03-15 15:31:34,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:34,720 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 165 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:34,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 223 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:34,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11515 states. [2022-03-15 15:31:34,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11515 to 5297. [2022-03-15 15:31:34,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5297 states, 5296 states have (on average 4.731117824773414) internal successors, (25056), 5296 states have internal predecessors, (25056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5297 states to 5297 states and 25056 transitions. [2022-03-15 15:31:34,909 INFO L78 Accepts]: Start accepts. Automaton has 5297 states and 25056 transitions. Word has length 29 [2022-03-15 15:31:34,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:34,909 INFO L470 AbstractCegarLoop]: Abstraction has 5297 states and 25056 transitions. [2022-03-15 15:31:34,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:34,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5297 states and 25056 transitions. [2022-03-15 15:31:34,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:34,920 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:34,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:34,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607 [2022-03-15 15:31:34,920 INFO L402 AbstractCegarLoop]: === Iteration 609 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:34,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:34,921 INFO L85 PathProgramCache]: Analyzing trace with hash 407334333, now seen corresponding path program 604 times [2022-03-15 15:31:34,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:34,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15213308] [2022-03-15 15:31:34,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:34,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:35,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:35,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:35,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15213308] [2022-03-15 15:31:35,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15213308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:35,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:35,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:35,048 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658468945] [2022-03-15 15:31:35,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:35,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:35,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:35,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:35,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:35,048 INFO L87 Difference]: Start difference. First operand 5297 states and 25056 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:35,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:35,309 INFO L93 Difference]: Finished difference Result 11930 states and 53213 transitions. [2022-03-15 15:31:35,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:35,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:35,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:35,351 INFO L225 Difference]: With dead ends: 11930 [2022-03-15 15:31:35,351 INFO L226 Difference]: Without dead ends: 11435 [2022-03-15 15:31:35,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:35,352 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 186 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:35,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 190 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:31:35,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11435 states. [2022-03-15 15:31:35,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11435 to 5217. [2022-03-15 15:31:35,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.74079754601227) internal successors, (24728), 5216 states have internal predecessors, (24728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:35,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24728 transitions. [2022-03-15 15:31:35,511 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24728 transitions. Word has length 29 [2022-03-15 15:31:35,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:35,511 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24728 transitions. [2022-03-15 15:31:35,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:35,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24728 transitions. [2022-03-15 15:31:35,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:35,522 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:35,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:35,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable608 [2022-03-15 15:31:35,523 INFO L402 AbstractCegarLoop]: === Iteration 610 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:35,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:35,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1811381729, now seen corresponding path program 605 times [2022-03-15 15:31:35,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:35,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995021882] [2022-03-15 15:31:35,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:35,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:35,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:35,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:35,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995021882] [2022-03-15 15:31:35,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995021882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:35,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:35,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:35,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064194065] [2022-03-15 15:31:35,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:35,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:35,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:35,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:35,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:35,683 INFO L87 Difference]: Start difference. First operand 5217 states and 24728 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:35,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:35,896 INFO L93 Difference]: Finished difference Result 11895 states and 53120 transitions. [2022-03-15 15:31:35,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:35,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:35,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:35,934 INFO L225 Difference]: With dead ends: 11895 [2022-03-15 15:31:35,934 INFO L226 Difference]: Without dead ends: 11418 [2022-03-15 15:31:35,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:35,935 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 172 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:35,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 217 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:35,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2022-03-15 15:31:36,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 5265. [2022-03-15 15:31:36,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.731003039513678) internal successors, (24904), 5264 states have internal predecessors, (24904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:36,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24904 transitions. [2022-03-15 15:31:36,106 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24904 transitions. Word has length 29 [2022-03-15 15:31:36,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:36,106 INFO L470 AbstractCegarLoop]: Abstraction has 5265 states and 24904 transitions. [2022-03-15 15:31:36,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:36,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24904 transitions. [2022-03-15 15:31:36,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:36,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:36,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:36,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable609 [2022-03-15 15:31:36,116 INFO L402 AbstractCegarLoop]: === Iteration 611 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:36,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:36,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1636788605, now seen corresponding path program 606 times [2022-03-15 15:31:36,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:36,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39079142] [2022-03-15 15:31:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:36,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:36,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:36,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39079142] [2022-03-15 15:31:36,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39079142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:36,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:36,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:36,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823702458] [2022-03-15 15:31:36,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:36,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:36,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:36,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:36,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:36,252 INFO L87 Difference]: Start difference. First operand 5265 states and 24904 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:36,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:36,446 INFO L93 Difference]: Finished difference Result 11833 states and 52803 transitions. [2022-03-15 15:31:36,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:36,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:36,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:36,488 INFO L225 Difference]: With dead ends: 11833 [2022-03-15 15:31:36,488 INFO L226 Difference]: Without dead ends: 11314 [2022-03-15 15:31:36,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:36,488 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 175 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:36,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 192 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:36,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11314 states. [2022-03-15 15:31:36,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11314 to 5161. [2022-03-15 15:31:36,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.753488372093023) internal successors, (24528), 5160 states have internal predecessors, (24528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:36,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24528 transitions. [2022-03-15 15:31:36,680 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24528 transitions. Word has length 29 [2022-03-15 15:31:36,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:36,681 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24528 transitions. [2022-03-15 15:31:36,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:36,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24528 transitions. [2022-03-15 15:31:36,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:36,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:36,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:36,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable610 [2022-03-15 15:31:36,694 INFO L402 AbstractCegarLoop]: === Iteration 612 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:36,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:36,694 INFO L85 PathProgramCache]: Analyzing trace with hash -8882883, now seen corresponding path program 607 times [2022-03-15 15:31:36,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:36,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247165114] [2022-03-15 15:31:36,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:36,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:36,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:36,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:36,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247165114] [2022-03-15 15:31:36,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247165114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:36,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:36,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:36,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281926209] [2022-03-15 15:31:36,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:36,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:36,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:36,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:36,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:36,857 INFO L87 Difference]: Start difference. First operand 5161 states and 24528 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:37,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:37,042 INFO L93 Difference]: Finished difference Result 12333 states and 55066 transitions. [2022-03-15 15:31:37,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:37,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:37,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:37,080 INFO L225 Difference]: With dead ends: 12333 [2022-03-15 15:31:37,080 INFO L226 Difference]: Without dead ends: 11791 [2022-03-15 15:31:37,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:37,081 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 198 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:37,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 201 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:37,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11791 states. [2022-03-15 15:31:37,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11791 to 5391. [2022-03-15 15:31:37,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5391 states, 5390 states have (on average 4.7205936920222635) internal successors, (25444), 5390 states have internal predecessors, (25444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:37,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5391 states to 5391 states and 25444 transitions. [2022-03-15 15:31:37,245 INFO L78 Accepts]: Start accepts. Automaton has 5391 states and 25444 transitions. Word has length 29 [2022-03-15 15:31:37,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:37,245 INFO L470 AbstractCegarLoop]: Abstraction has 5391 states and 25444 transitions. [2022-03-15 15:31:37,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5391 states and 25444 transitions. [2022-03-15 15:31:37,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:37,256 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:37,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:37,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable611 [2022-03-15 15:31:37,256 INFO L402 AbstractCegarLoop]: === Iteration 613 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:37,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:37,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1072179743, now seen corresponding path program 608 times [2022-03-15 15:31:37,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:37,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907071161] [2022-03-15 15:31:37,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:37,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:37,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:37,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907071161] [2022-03-15 15:31:37,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907071161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:37,398 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:37,398 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:37,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575953596] [2022-03-15 15:31:37,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:37,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:37,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:37,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:37,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:37,398 INFO L87 Difference]: Start difference. First operand 5391 states and 25444 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:37,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:37,577 INFO L93 Difference]: Finished difference Result 12268 states and 54697 transitions. [2022-03-15 15:31:37,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:37,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:37,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:37,621 INFO L225 Difference]: With dead ends: 12268 [2022-03-15 15:31:37,621 INFO L226 Difference]: Without dead ends: 11648 [2022-03-15 15:31:37,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:37,621 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 182 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:37,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 194 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:37,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11648 states. [2022-03-15 15:31:37,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11648 to 5248. [2022-03-15 15:31:37,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5248 states, 5247 states have (on average 4.736801982085001) internal successors, (24854), 5247 states have internal predecessors, (24854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:37,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5248 states to 5248 states and 24854 transitions. [2022-03-15 15:31:37,805 INFO L78 Accepts]: Start accepts. Automaton has 5248 states and 24854 transitions. Word has length 29 [2022-03-15 15:31:37,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:37,805 INFO L470 AbstractCegarLoop]: Abstraction has 5248 states and 24854 transitions. [2022-03-15 15:31:37,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5248 states and 24854 transitions. [2022-03-15 15:31:37,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:37,816 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:37,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:37,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable612 [2022-03-15 15:31:37,816 INFO L402 AbstractCegarLoop]: === Iteration 614 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:37,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:37,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1084087613, now seen corresponding path program 609 times [2022-03-15 15:31:37,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:37,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143980320] [2022-03-15 15:31:37,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:37,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:37,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:37,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:37,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143980320] [2022-03-15 15:31:37,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143980320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:37,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:37,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:37,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520514756] [2022-03-15 15:31:37,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:37,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:37,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:37,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:37,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:37,933 INFO L87 Difference]: Start difference. First operand 5248 states and 24854 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:38,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:38,105 INFO L93 Difference]: Finished difference Result 12298 states and 54875 transitions. [2022-03-15 15:31:38,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:38,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:38,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:38,144 INFO L225 Difference]: With dead ends: 12298 [2022-03-15 15:31:38,144 INFO L226 Difference]: Without dead ends: 11756 [2022-03-15 15:31:38,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:38,144 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 171 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:38,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 196 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:38,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11756 states. [2022-03-15 15:31:38,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11756 to 5358. [2022-03-15 15:31:38,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5358 states, 5357 states have (on average 4.71513907037521) internal successors, (25259), 5357 states have internal predecessors, (25259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:38,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5358 states to 5358 states and 25259 transitions. [2022-03-15 15:31:38,321 INFO L78 Accepts]: Start accepts. Automaton has 5358 states and 25259 transitions. Word has length 29 [2022-03-15 15:31:38,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:38,321 INFO L470 AbstractCegarLoop]: Abstraction has 5358 states and 25259 transitions. [2022-03-15 15:31:38,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:38,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5358 states and 25259 transitions. [2022-03-15 15:31:38,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:38,332 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:38,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:38,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable613 [2022-03-15 15:31:38,332 INFO L402 AbstractCegarLoop]: === Iteration 615 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:38,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:38,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1133655357, now seen corresponding path program 610 times [2022-03-15 15:31:38,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:38,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959550604] [2022-03-15 15:31:38,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:38,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:38,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:38,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:38,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959550604] [2022-03-15 15:31:38,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959550604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:38,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:38,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:38,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997721207] [2022-03-15 15:31:38,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:38,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:38,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:38,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:38,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:38,446 INFO L87 Difference]: Start difference. First operand 5358 states and 25259 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:38,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:38,719 INFO L93 Difference]: Finished difference Result 12231 states and 54502 transitions. [2022-03-15 15:31:38,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:38,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:38,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:38,765 INFO L225 Difference]: With dead ends: 12231 [2022-03-15 15:31:38,765 INFO L226 Difference]: Without dead ends: 11646 [2022-03-15 15:31:38,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:38,765 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 183 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:38,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 204 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:31:38,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11646 states. [2022-03-15 15:31:38,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11646 to 5248. [2022-03-15 15:31:38,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5248 states, 5247 states have (on average 4.7263198017915) internal successors, (24799), 5247 states have internal predecessors, (24799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5248 states to 5248 states and 24799 transitions. [2022-03-15 15:31:38,983 INFO L78 Accepts]: Start accepts. Automaton has 5248 states and 24799 transitions. Word has length 29 [2022-03-15 15:31:38,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:38,983 INFO L470 AbstractCegarLoop]: Abstraction has 5248 states and 24799 transitions. [2022-03-15 15:31:38,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:38,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5248 states and 24799 transitions. [2022-03-15 15:31:38,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:38,997 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:38,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:38,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable614 [2022-03-15 15:31:38,997 INFO L402 AbstractCegarLoop]: === Iteration 616 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:38,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:38,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1472092575, now seen corresponding path program 611 times [2022-03-15 15:31:38,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:38,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611806780] [2022-03-15 15:31:38,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:38,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:39,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:39,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:39,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611806780] [2022-03-15 15:31:39,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611806780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:39,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:39,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:39,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068682779] [2022-03-15 15:31:39,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:39,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:39,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:39,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:39,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:39,243 INFO L87 Difference]: Start difference. First operand 5248 states and 24799 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:39,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:39,445 INFO L93 Difference]: Finished difference Result 12136 states and 54160 transitions. [2022-03-15 15:31:39,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:39,445 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:39,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:39,482 INFO L225 Difference]: With dead ends: 12136 [2022-03-15 15:31:39,482 INFO L226 Difference]: Without dead ends: 11659 [2022-03-15 15:31:39,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:39,482 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 171 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:39,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 223 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:39,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11659 states. [2022-03-15 15:31:39,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11659 to 5326. [2022-03-15 15:31:39,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5326 states, 5325 states have (on average 4.712112676056338) internal successors, (25092), 5325 states have internal predecessors, (25092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:39,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 25092 transitions. [2022-03-15 15:31:39,636 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 25092 transitions. Word has length 29 [2022-03-15 15:31:39,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:39,636 INFO L470 AbstractCegarLoop]: Abstraction has 5326 states and 25092 transitions. [2022-03-15 15:31:39,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:39,636 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 25092 transitions. [2022-03-15 15:31:39,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:39,646 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:39,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:39,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable615 [2022-03-15 15:31:39,646 INFO L402 AbstractCegarLoop]: === Iteration 617 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:39,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:39,646 INFO L85 PathProgramCache]: Analyzing trace with hash -643987075, now seen corresponding path program 612 times [2022-03-15 15:31:39,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:39,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314841061] [2022-03-15 15:31:39,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:39,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:39,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:39,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:39,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314841061] [2022-03-15 15:31:39,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314841061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:39,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:39,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:39,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907618312] [2022-03-15 15:31:39,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:39,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:39,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:39,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:39,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:39,825 INFO L87 Difference]: Start difference. First operand 5326 states and 25092 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:40,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:40,069 INFO L93 Difference]: Finished difference Result 12134 states and 54077 transitions. [2022-03-15 15:31:40,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:40,069 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:40,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:40,103 INFO L225 Difference]: With dead ends: 12134 [2022-03-15 15:31:40,103 INFO L226 Difference]: Without dead ends: 11494 [2022-03-15 15:31:40,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:40,104 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 155 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:40,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 226 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:40,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11494 states. [2022-03-15 15:31:40,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11494 to 5161. [2022-03-15 15:31:40,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.746511627906977) internal successors, (24492), 5160 states have internal predecessors, (24492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24492 transitions. [2022-03-15 15:31:40,250 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24492 transitions. Word has length 29 [2022-03-15 15:31:40,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:40,250 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24492 transitions. [2022-03-15 15:31:40,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:40,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24492 transitions. [2022-03-15 15:31:40,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:40,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:40,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:40,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable616 [2022-03-15 15:31:40,260 INFO L402 AbstractCegarLoop]: === Iteration 618 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:40,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:40,260 INFO L85 PathProgramCache]: Analyzing trace with hash -798269153, now seen corresponding path program 613 times [2022-03-15 15:31:40,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:40,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879389632] [2022-03-15 15:31:40,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:40,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:40,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:40,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:40,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879389632] [2022-03-15 15:31:40,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879389632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:40,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:40,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:40,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401182726] [2022-03-15 15:31:40,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:40,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:40,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:40,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:40,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:40,390 INFO L87 Difference]: Start difference. First operand 5161 states and 24492 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:40,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:40,558 INFO L93 Difference]: Finished difference Result 12006 states and 53628 transitions. [2022-03-15 15:31:40,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:40,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:40,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:40,593 INFO L225 Difference]: With dead ends: 12006 [2022-03-15 15:31:40,593 INFO L226 Difference]: Without dead ends: 11464 [2022-03-15 15:31:40,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:40,594 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 184 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:40,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 201 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:40,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11464 states. [2022-03-15 15:31:40,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11464 to 5281. [2022-03-15 15:31:40,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 4.7318181818181815) internal successors, (24984), 5280 states have internal predecessors, (24984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 24984 transitions. [2022-03-15 15:31:40,743 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 24984 transitions. Word has length 29 [2022-03-15 15:31:40,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:40,756 INFO L470 AbstractCegarLoop]: Abstraction has 5281 states and 24984 transitions. [2022-03-15 15:31:40,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:40,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 24984 transitions. [2022-03-15 15:31:40,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:40,767 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:40,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:40,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable617 [2022-03-15 15:31:40,768 INFO L402 AbstractCegarLoop]: === Iteration 619 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:40,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:40,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1808451871, now seen corresponding path program 614 times [2022-03-15 15:31:40,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:40,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166895086] [2022-03-15 15:31:40,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:40,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:40,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:40,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:40,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166895086] [2022-03-15 15:31:40,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166895086] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:40,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:40,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:40,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478803782] [2022-03-15 15:31:40,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:40,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:40,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:40,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:40,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:40,932 INFO L87 Difference]: Start difference. First operand 5281 states and 24984 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:41,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:41,143 INFO L93 Difference]: Finished difference Result 11879 states and 53021 transitions. [2022-03-15 15:31:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:41,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:41,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:41,180 INFO L225 Difference]: With dead ends: 11879 [2022-03-15 15:31:41,180 INFO L226 Difference]: Without dead ends: 11384 [2022-03-15 15:31:41,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:41,180 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 172 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:41,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 213 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:41,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11384 states. [2022-03-15 15:31:41,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11384 to 5201. [2022-03-15 15:31:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.741538461538462) internal successors, (24656), 5200 states have internal predecessors, (24656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24656 transitions. [2022-03-15 15:31:41,348 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24656 transitions. Word has length 29 [2022-03-15 15:31:41,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:41,348 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24656 transitions. [2022-03-15 15:31:41,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:41,348 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24656 transitions. [2022-03-15 15:31:41,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:41,360 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:41,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:41,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable618 [2022-03-15 15:31:41,361 INFO L402 AbstractCegarLoop]: === Iteration 620 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:41,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:41,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1473636605, now seen corresponding path program 615 times [2022-03-15 15:31:41,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:41,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437097838] [2022-03-15 15:31:41,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:41,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:41,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:41,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:41,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437097838] [2022-03-15 15:31:41,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437097838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:41,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:41,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:41,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929755052] [2022-03-15 15:31:41,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:41,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:41,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:41,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:41,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:41,540 INFO L87 Difference]: Start difference. First operand 5201 states and 24656 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:41,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:41,773 INFO L93 Difference]: Finished difference Result 12096 states and 53999 transitions. [2022-03-15 15:31:41,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:41,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:41,813 INFO L225 Difference]: With dead ends: 12096 [2022-03-15 15:31:41,813 INFO L226 Difference]: Without dead ends: 11554 [2022-03-15 15:31:41,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:41,813 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 178 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:41,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 226 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:41,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11554 states. [2022-03-15 15:31:41,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11554 to 5311. [2022-03-15 15:31:41,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 4.719585687382297) internal successors, (25061), 5310 states have internal predecessors, (25061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:42,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 25061 transitions. [2022-03-15 15:31:42,002 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 25061 transitions. Word has length 29 [2022-03-15 15:31:42,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:42,002 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 25061 transitions. [2022-03-15 15:31:42,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:42,002 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 25061 transitions. [2022-03-15 15:31:42,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:42,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:42,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:42,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable619 [2022-03-15 15:31:42,014 INFO L402 AbstractCegarLoop]: === Iteration 621 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:42,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:42,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1451710177, now seen corresponding path program 616 times [2022-03-15 15:31:42,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:42,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956815714] [2022-03-15 15:31:42,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:42,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:42,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:42,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:42,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956815714] [2022-03-15 15:31:42,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956815714] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:42,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:42,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:42,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034330393] [2022-03-15 15:31:42,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:42,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:42,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:42,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:42,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:42,199 INFO L87 Difference]: Start difference. First operand 5311 states and 25061 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:42,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:42,436 INFO L93 Difference]: Finished difference Result 12029 states and 53626 transitions. [2022-03-15 15:31:42,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:42,436 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:42,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:42,562 INFO L225 Difference]: With dead ends: 12029 [2022-03-15 15:31:42,562 INFO L226 Difference]: Without dead ends: 11444 [2022-03-15 15:31:42,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:42,562 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 166 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:42,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 227 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:42,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11444 states. [2022-03-15 15:31:42,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11444 to 5201. [2022-03-15 15:31:42,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.733846153846154) internal successors, (24616), 5200 states have internal predecessors, (24616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:42,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24616 transitions. [2022-03-15 15:31:42,689 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24616 transitions. Word has length 29 [2022-03-15 15:31:42,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:42,689 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24616 transitions. [2022-03-15 15:31:42,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:42,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24616 transitions. [2022-03-15 15:31:42,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:42,698 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:42,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:42,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable620 [2022-03-15 15:31:42,699 INFO L402 AbstractCegarLoop]: === Iteration 622 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:42,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:42,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2096553697, now seen corresponding path program 617 times [2022-03-15 15:31:42,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:42,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559652724] [2022-03-15 15:31:42,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:42,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:42,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:42,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559652724] [2022-03-15 15:31:42,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559652724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:42,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:42,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:42,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849319966] [2022-03-15 15:31:42,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:42,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:42,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:42,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:42,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:42,864 INFO L87 Difference]: Start difference. First operand 5201 states and 24616 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:43,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:43,072 INFO L93 Difference]: Finished difference Result 11780 states and 52614 transitions. [2022-03-15 15:31:43,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:43,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:43,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:43,110 INFO L225 Difference]: With dead ends: 11780 [2022-03-15 15:31:43,110 INFO L226 Difference]: Without dead ends: 11365 [2022-03-15 15:31:43,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:43,110 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 154 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:43,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 219 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:43,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11365 states. [2022-03-15 15:31:43,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11365 to 5249. [2022-03-15 15:31:43,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.724085365853658) internal successors, (24792), 5248 states have internal predecessors, (24792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24792 transitions. [2022-03-15 15:31:43,277 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24792 transitions. Word has length 29 [2022-03-15 15:31:43,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:43,277 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 24792 transitions. [2022-03-15 15:31:43,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:43,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24792 transitions. [2022-03-15 15:31:43,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:43,287 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:43,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:43,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable621 [2022-03-15 15:31:43,288 INFO L402 AbstractCegarLoop]: === Iteration 623 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:43,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:43,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1351616637, now seen corresponding path program 618 times [2022-03-15 15:31:43,288 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:43,288 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792119647] [2022-03-15 15:31:43,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:43,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:43,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:43,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:43,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792119647] [2022-03-15 15:31:43,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792119647] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:43,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:43,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:43,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609649667] [2022-03-15 15:31:43,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:43,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:43,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:43,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:43,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:43,461 INFO L87 Difference]: Start difference. First operand 5249 states and 24792 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:43,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:43,693 INFO L93 Difference]: Finished difference Result 11840 states and 52830 transitions. [2022-03-15 15:31:43,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:43,693 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:43,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:43,728 INFO L225 Difference]: With dead ends: 11840 [2022-03-15 15:31:43,728 INFO L226 Difference]: Without dead ends: 11277 [2022-03-15 15:31:43,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:43,728 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 161 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:43,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 203 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:43,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11277 states. [2022-03-15 15:31:43,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11277 to 5161. [2022-03-15 15:31:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.742635658914729) internal successors, (24472), 5160 states have internal predecessors, (24472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:43,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24472 transitions. [2022-03-15 15:31:43,884 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24472 transitions. Word has length 29 [2022-03-15 15:31:43,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:43,885 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24472 transitions. [2022-03-15 15:31:43,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:43,885 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24472 transitions. [2022-03-15 15:31:43,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:43,895 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:43,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:43,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable622 [2022-03-15 15:31:43,895 INFO L402 AbstractCegarLoop]: === Iteration 624 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:43,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:43,895 INFO L85 PathProgramCache]: Analyzing trace with hash -718748415, now seen corresponding path program 619 times [2022-03-15 15:31:43,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:43,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487497889] [2022-03-15 15:31:43,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:43,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:44,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:44,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:44,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487497889] [2022-03-15 15:31:44,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487497889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:44,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:44,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:44,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191207850] [2022-03-15 15:31:44,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:44,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:44,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:44,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:44,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:44,133 INFO L87 Difference]: Start difference. First operand 5161 states and 24472 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:44,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:44,367 INFO L93 Difference]: Finished difference Result 11699 states and 52322 transitions. [2022-03-15 15:31:44,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:44,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:44,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:44,403 INFO L225 Difference]: With dead ends: 11699 [2022-03-15 15:31:44,403 INFO L226 Difference]: Without dead ends: 11222 [2022-03-15 15:31:44,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:44,403 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 154 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:44,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 242 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:44,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11222 states. [2022-03-15 15:31:44,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11222 to 5233. [2022-03-15 15:31:44,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.734709480122324) internal successors, (24772), 5232 states have internal predecessors, (24772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:44,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24772 transitions. [2022-03-15 15:31:44,560 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24772 transitions. Word has length 29 [2022-03-15 15:31:44,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:44,560 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24772 transitions. [2022-03-15 15:31:44,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:44,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24772 transitions. [2022-03-15 15:31:44,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:44,571 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:44,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:44,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable623 [2022-03-15 15:31:44,571 INFO L402 AbstractCegarLoop]: === Iteration 625 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:44,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:44,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1565545377, now seen corresponding path program 620 times [2022-03-15 15:31:44,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:44,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402598035] [2022-03-15 15:31:44,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:44,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:44,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:44,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:44,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402598035] [2022-03-15 15:31:44,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402598035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:44,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:44,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:44,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790503633] [2022-03-15 15:31:44,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:44,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:44,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:44,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:44,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:44,736 INFO L87 Difference]: Start difference. First operand 5233 states and 24772 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:44,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:44,937 INFO L93 Difference]: Finished difference Result 11637 states and 52005 transitions. [2022-03-15 15:31:44,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:44,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:44,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:44,973 INFO L225 Difference]: With dead ends: 11637 [2022-03-15 15:31:44,973 INFO L226 Difference]: Without dead ends: 11174 [2022-03-15 15:31:44,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:44,973 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 184 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:44,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 200 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:44,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11174 states. [2022-03-15 15:31:45,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11174 to 5185. [2022-03-15 15:31:45,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.739969135802469) internal successors, (24572), 5184 states have internal predecessors, (24572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:45,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24572 transitions. [2022-03-15 15:31:45,130 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24572 transitions. Word has length 29 [2022-03-15 15:31:45,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:45,130 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24572 transitions. [2022-03-15 15:31:45,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:45,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24572 transitions. [2022-03-15 15:31:45,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:45,140 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:45,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:45,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable624 [2022-03-15 15:31:45,140 INFO L402 AbstractCegarLoop]: === Iteration 626 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:45,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:45,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1553157343, now seen corresponding path program 621 times [2022-03-15 15:31:45,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:45,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692800303] [2022-03-15 15:31:45,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:45,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:45,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:45,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:45,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692800303] [2022-03-15 15:31:45,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692800303] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:45,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:45,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:45,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374049919] [2022-03-15 15:31:45,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:45,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:45,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:45,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:45,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:45,312 INFO L87 Difference]: Start difference. First operand 5185 states and 24572 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:45,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:45,521 INFO L93 Difference]: Finished difference Result 11789 states and 52709 transitions. [2022-03-15 15:31:45,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:45,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:45,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:45,558 INFO L225 Difference]: With dead ends: 11789 [2022-03-15 15:31:45,558 INFO L226 Difference]: Without dead ends: 11312 [2022-03-15 15:31:45,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:45,558 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 171 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:45,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 196 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:45,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11312 states. [2022-03-15 15:31:45,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11312 to 5263. [2022-03-15 15:31:45,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.725389585708856) internal successors, (24865), 5262 states have internal predecessors, (24865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:45,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24865 transitions. [2022-03-15 15:31:45,715 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24865 transitions. Word has length 29 [2022-03-15 15:31:45,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:45,715 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 24865 transitions. [2022-03-15 15:31:45,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:45,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24865 transitions. [2022-03-15 15:31:45,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:45,725 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:45,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:45,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable625 [2022-03-15 15:31:45,726 INFO L402 AbstractCegarLoop]: === Iteration 627 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:45,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:45,726 INFO L85 PathProgramCache]: Analyzing trace with hash 757130463, now seen corresponding path program 622 times [2022-03-15 15:31:45,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:45,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167255975] [2022-03-15 15:31:45,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:45,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:45,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:45,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:45,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167255975] [2022-03-15 15:31:45,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167255975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:45,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:45,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:45,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445583279] [2022-03-15 15:31:45,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:45,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:45,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:45,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:45,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:45,899 INFO L87 Difference]: Start difference. First operand 5263 states and 24865 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:46,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:46,188 INFO L93 Difference]: Finished difference Result 11787 states and 52626 transitions. [2022-03-15 15:31:46,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:46,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:46,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:46,222 INFO L225 Difference]: With dead ends: 11787 [2022-03-15 15:31:46,222 INFO L226 Difference]: Without dead ends: 11234 [2022-03-15 15:31:46,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:46,222 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 152 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:46,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 217 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:31:46,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-03-15 15:31:46,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 5185. [2022-03-15 15:31:46,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.735339506172839) internal successors, (24548), 5184 states have internal predecessors, (24548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:46,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24548 transitions. [2022-03-15 15:31:46,368 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24548 transitions. Word has length 29 [2022-03-15 15:31:46,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:46,368 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24548 transitions. [2022-03-15 15:31:46,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24548 transitions. [2022-03-15 15:31:46,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:46,378 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:46,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:46,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable626 [2022-03-15 15:31:46,378 INFO L402 AbstractCegarLoop]: === Iteration 628 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:46,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:46,378 INFO L85 PathProgramCache]: Analyzing trace with hash 696409277, now seen corresponding path program 623 times [2022-03-15 15:31:46,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:46,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746253683] [2022-03-15 15:31:46,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:46,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:46,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:46,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:46,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746253683] [2022-03-15 15:31:46,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746253683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:46,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:46,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:46,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520524077] [2022-03-15 15:31:46,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:46,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:46,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:46,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:46,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:46,511 INFO L87 Difference]: Start difference. First operand 5185 states and 24548 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:46,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:46,681 INFO L93 Difference]: Finished difference Result 11635 states and 52000 transitions. [2022-03-15 15:31:46,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:46,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:46,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:46,715 INFO L225 Difference]: With dead ends: 11635 [2022-03-15 15:31:46,715 INFO L226 Difference]: Without dead ends: 11220 [2022-03-15 15:31:46,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:46,716 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 158 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:46,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 226 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:46,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11220 states. [2022-03-15 15:31:46,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11220 to 5233. [2022-03-15 15:31:46,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.7255351681957185) internal successors, (24724), 5232 states have internal predecessors, (24724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:46,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24724 transitions. [2022-03-15 15:31:46,866 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24724 transitions. Word has length 29 [2022-03-15 15:31:46,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:46,866 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24724 transitions. [2022-03-15 15:31:46,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:46,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24724 transitions. [2022-03-15 15:31:46,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:46,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:46,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:46,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable627 [2022-03-15 15:31:46,877 INFO L402 AbstractCegarLoop]: === Iteration 629 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:46,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:46,877 INFO L85 PathProgramCache]: Analyzing trace with hash 215507231, now seen corresponding path program 624 times [2022-03-15 15:31:46,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:46,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746817652] [2022-03-15 15:31:46,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:46,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:46,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:46,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746817652] [2022-03-15 15:31:46,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746817652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:46,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:46,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:46,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931579392] [2022-03-15 15:31:46,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:46,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:46,992 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:46,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:46,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:46,992 INFO L87 Difference]: Start difference. First operand 5233 states and 24724 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:47,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:47,174 INFO L93 Difference]: Finished difference Result 11695 states and 52216 transitions. [2022-03-15 15:31:47,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:47,174 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:47,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:47,207 INFO L225 Difference]: With dead ends: 11695 [2022-03-15 15:31:47,207 INFO L226 Difference]: Without dead ends: 11112 [2022-03-15 15:31:47,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:47,210 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 170 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:47,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 224 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:47,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11112 states. [2022-03-15 15:31:47,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11112 to 5125. [2022-03-15 15:31:47,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.754488680718189) internal successors, (24362), 5124 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:47,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24362 transitions. [2022-03-15 15:31:47,352 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24362 transitions. Word has length 29 [2022-03-15 15:31:47,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:47,352 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24362 transitions. [2022-03-15 15:31:47,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:47,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24362 transitions. [2022-03-15 15:31:47,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:47,362 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:47,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:47,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable628 [2022-03-15 15:31:47,362 INFO L402 AbstractCegarLoop]: === Iteration 630 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:47,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:47,362 INFO L85 PathProgramCache]: Analyzing trace with hash 531301565, now seen corresponding path program 625 times [2022-03-15 15:31:47,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:47,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169755234] [2022-03-15 15:31:47,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:47,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:47,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:47,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169755234] [2022-03-15 15:31:47,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169755234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:47,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:47,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:47,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236146368] [2022-03-15 15:31:47,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:47,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:47,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:47,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:47,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:47,477 INFO L87 Difference]: Start difference. First operand 5125 states and 24362 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:47,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:47,664 INFO L93 Difference]: Finished difference Result 12149 states and 54283 transitions. [2022-03-15 15:31:47,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:47,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:47,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:47,699 INFO L225 Difference]: With dead ends: 12149 [2022-03-15 15:31:47,699 INFO L226 Difference]: Without dead ends: 11607 [2022-03-15 15:31:47,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:47,699 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 168 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:47,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 249 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:47,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11607 states. [2022-03-15 15:31:47,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11607 to 5352. [2022-03-15 15:31:47,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 4.727527564941132) internal successors, (25297), 5351 states have internal predecessors, (25297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:47,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 25297 transitions. [2022-03-15 15:31:47,847 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 25297 transitions. Word has length 29 [2022-03-15 15:31:47,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:47,847 INFO L470 AbstractCegarLoop]: Abstraction has 5352 states and 25297 transitions. [2022-03-15 15:31:47,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:47,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 25297 transitions. [2022-03-15 15:31:47,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:47,857 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:47,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:47,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable629 [2022-03-15 15:31:47,857 INFO L402 AbstractCegarLoop]: === Iteration 631 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:47,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:47,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1612364191, now seen corresponding path program 626 times [2022-03-15 15:31:47,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:47,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145678771] [2022-03-15 15:31:47,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:47,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:47,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:47,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:47,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145678771] [2022-03-15 15:31:47,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145678771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:47,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:47,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:47,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811735011] [2022-03-15 15:31:47,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:47,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:47,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:47,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:47,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:47,979 INFO L87 Difference]: Start difference. First operand 5352 states and 25297 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:48,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:48,145 INFO L93 Difference]: Finished difference Result 12084 states and 53914 transitions. [2022-03-15 15:31:48,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:48,146 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:48,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:48,182 INFO L225 Difference]: With dead ends: 12084 [2022-03-15 15:31:48,182 INFO L226 Difference]: Without dead ends: 11464 [2022-03-15 15:31:48,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:48,182 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 186 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:48,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 188 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:48,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11464 states. [2022-03-15 15:31:48,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11464 to 5209. [2022-03-15 15:31:48,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.746927803379417) internal successors, (24722), 5208 states have internal predecessors, (24722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:48,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24722 transitions. [2022-03-15 15:31:48,329 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24722 transitions. Word has length 29 [2022-03-15 15:31:48,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:48,329 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24722 transitions. [2022-03-15 15:31:48,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:48,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24722 transitions. [2022-03-15 15:31:48,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:48,339 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:48,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:48,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable630 [2022-03-15 15:31:48,339 INFO L402 AbstractCegarLoop]: === Iteration 632 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:48,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:48,340 INFO L85 PathProgramCache]: Analyzing trace with hash 50399519, now seen corresponding path program 627 times [2022-03-15 15:31:48,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:48,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285196606] [2022-03-15 15:31:48,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:48,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:48,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:48,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:48,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285196606] [2022-03-15 15:31:48,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285196606] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:48,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:48,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:48,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229137221] [2022-03-15 15:31:48,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:48,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:48,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:48,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:48,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:48,485 INFO L87 Difference]: Start difference. First operand 5209 states and 24722 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:48,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:48,668 INFO L93 Difference]: Finished difference Result 12024 states and 53696 transitions. [2022-03-15 15:31:48,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:48,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:48,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:48,703 INFO L225 Difference]: With dead ends: 12024 [2022-03-15 15:31:48,703 INFO L226 Difference]: Without dead ends: 11482 [2022-03-15 15:31:48,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:48,703 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 183 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:48,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 206 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:48,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11482 states. [2022-03-15 15:31:48,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11482 to 5289. [2022-03-15 15:31:48,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 4.7295763993948565) internal successors, (25010), 5288 states have internal predecessors, (25010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:48,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 25010 transitions. [2022-03-15 15:31:48,849 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 25010 transitions. Word has length 29 [2022-03-15 15:31:48,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:48,849 INFO L470 AbstractCegarLoop]: Abstraction has 5289 states and 25010 transitions. [2022-03-15 15:31:48,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:48,849 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 25010 transitions. [2022-03-15 15:31:48,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:48,859 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:48,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:48,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable631 [2022-03-15 15:31:48,859 INFO L402 AbstractCegarLoop]: === Iteration 633 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:48,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:48,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1637846753, now seen corresponding path program 628 times [2022-03-15 15:31:48,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:48,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151384717] [2022-03-15 15:31:48,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:48,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:49,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:49,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151384717] [2022-03-15 15:31:49,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151384717] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:49,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:49,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:49,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027944414] [2022-03-15 15:31:49,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:49,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:49,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:49,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:49,015 INFO L87 Difference]: Start difference. First operand 5289 states and 25010 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:49,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:49,216 INFO L93 Difference]: Finished difference Result 11897 states and 53089 transitions. [2022-03-15 15:31:49,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:49,217 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:49,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:49,252 INFO L225 Difference]: With dead ends: 11897 [2022-03-15 15:31:49,252 INFO L226 Difference]: Without dead ends: 11402 [2022-03-15 15:31:49,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:49,253 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 188 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:49,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 199 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:49,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11402 states. [2022-03-15 15:31:49,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11402 to 5209. [2022-03-15 15:31:49,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.739247311827957) internal successors, (24682), 5208 states have internal predecessors, (24682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24682 transitions. [2022-03-15 15:31:49,470 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24682 transitions. Word has length 29 [2022-03-15 15:31:49,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:49,470 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24682 transitions. [2022-03-15 15:31:49,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:49,470 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24682 transitions. [2022-03-15 15:31:49,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:49,481 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:49,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:49,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable632 [2022-03-15 15:31:49,481 INFO L402 AbstractCegarLoop]: === Iteration 634 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:49,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:49,482 INFO L85 PathProgramCache]: Analyzing trace with hash 438404481, now seen corresponding path program 629 times [2022-03-15 15:31:49,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:49,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425858105] [2022-03-15 15:31:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:49,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:49,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:49,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:49,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425858105] [2022-03-15 15:31:49,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425858105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:49,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:49,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:49,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801493199] [2022-03-15 15:31:49,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:49,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:49,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:49,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:49,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:49,644 INFO L87 Difference]: Start difference. First operand 5209 states and 24682 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:49,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:49,878 INFO L93 Difference]: Finished difference Result 11862 states and 52996 transitions. [2022-03-15 15:31:49,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:49,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:49,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:49,917 INFO L225 Difference]: With dead ends: 11862 [2022-03-15 15:31:49,917 INFO L226 Difference]: Without dead ends: 11385 [2022-03-15 15:31:49,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:49,917 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 159 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:49,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 214 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:49,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2022-03-15 15:31:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 5257. [2022-03-15 15:31:50,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 4.72945205479452) internal successors, (24858), 5256 states have internal predecessors, (24858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:50,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 24858 transitions. [2022-03-15 15:31:50,102 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 24858 transitions. Word has length 29 [2022-03-15 15:31:50,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:50,102 INFO L470 AbstractCegarLoop]: Abstraction has 5257 states and 24858 transitions. [2022-03-15 15:31:50,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:50,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 24858 transitions. [2022-03-15 15:31:50,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:50,115 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:50,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:50,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable633 [2022-03-15 15:31:50,116 INFO L402 AbstractCegarLoop]: === Iteration 635 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:50,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:50,116 INFO L85 PathProgramCache]: Analyzing trace with hash -408392481, now seen corresponding path program 630 times [2022-03-15 15:31:50,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:50,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717524389] [2022-03-15 15:31:50,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:50,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:50,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:50,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:50,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717524389] [2022-03-15 15:31:50,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717524389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:50,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:50,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:50,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908730807] [2022-03-15 15:31:50,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:50,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:50,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:50,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:50,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:50,276 INFO L87 Difference]: Start difference. First operand 5257 states and 24858 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:50,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:50,458 INFO L93 Difference]: Finished difference Result 11800 states and 52679 transitions. [2022-03-15 15:31:50,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:50,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:50,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:50,490 INFO L225 Difference]: With dead ends: 11800 [2022-03-15 15:31:50,490 INFO L226 Difference]: Without dead ends: 11281 [2022-03-15 15:31:50,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:50,490 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 173 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:50,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 194 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:50,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11281 states. [2022-03-15 15:31:50,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11281 to 5153. [2022-03-15 15:31:50,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.7519409937888195) internal successors, (24482), 5152 states have internal predecessors, (24482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24482 transitions. [2022-03-15 15:31:50,626 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24482 transitions. Word has length 29 [2022-03-15 15:31:50,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:50,626 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24482 transitions. [2022-03-15 15:31:50,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24482 transitions. [2022-03-15 15:31:50,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:50,636 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:50,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:50,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable634 [2022-03-15 15:31:50,636 INFO L402 AbstractCegarLoop]: === Iteration 636 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:50,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:50,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1391039299, now seen corresponding path program 631 times [2022-03-15 15:31:50,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:50,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825332043] [2022-03-15 15:31:50,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:50,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:50,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:50,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:50,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825332043] [2022-03-15 15:31:50,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825332043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:50,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:50,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:50,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730273911] [2022-03-15 15:31:50,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:50,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:50,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:50,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:50,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:50,779 INFO L87 Difference]: Start difference. First operand 5153 states and 24482 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:50,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:50,966 INFO L93 Difference]: Finished difference Result 12275 states and 54864 transitions. [2022-03-15 15:31:50,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:50,967 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:50,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:51,002 INFO L225 Difference]: With dead ends: 12275 [2022-03-15 15:31:51,002 INFO L226 Difference]: Without dead ends: 11733 [2022-03-15 15:31:51,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:51,002 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 183 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:51,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 206 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:51,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11733 states. [2022-03-15 15:31:51,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11733 to 5366. [2022-03-15 15:31:51,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 4.724324324324324) internal successors, (25346), 5365 states have internal predecessors, (25346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:51,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 25346 transitions. [2022-03-15 15:31:51,150 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 25346 transitions. Word has length 29 [2022-03-15 15:31:51,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:51,150 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 25346 transitions. [2022-03-15 15:31:51,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:51,150 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 25346 transitions. [2022-03-15 15:31:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:51,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:51,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:51,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable635 [2022-03-15 15:31:51,161 INFO L402 AbstractCegarLoop]: === Iteration 637 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:51,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:51,161 INFO L85 PathProgramCache]: Analyzing trace with hash -309976673, now seen corresponding path program 632 times [2022-03-15 15:31:51,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:51,161 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029160831] [2022-03-15 15:31:51,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:51,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:51,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:51,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:51,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029160831] [2022-03-15 15:31:51,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029160831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:51,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:51,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:51,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375096388] [2022-03-15 15:31:51,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:51,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:51,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:51,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:51,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:51,309 INFO L87 Difference]: Start difference. First operand 5366 states and 25346 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:51,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:51,531 INFO L93 Difference]: Finished difference Result 12210 states and 54495 transitions. [2022-03-15 15:31:51,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:51,532 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:51,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:51,568 INFO L225 Difference]: With dead ends: 12210 [2022-03-15 15:31:51,569 INFO L226 Difference]: Without dead ends: 11590 [2022-03-15 15:31:51,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:51,569 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 174 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:51,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 226 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:51,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11590 states. [2022-03-15 15:31:51,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11590 to 5223. [2022-03-15 15:31:51,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.740903868249712) internal successors, (24757), 5222 states have internal predecessors, (24757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:51,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24757 transitions. [2022-03-15 15:31:51,737 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24757 transitions. Word has length 29 [2022-03-15 15:31:51,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:51,737 INFO L470 AbstractCegarLoop]: Abstraction has 5223 states and 24757 transitions. [2022-03-15 15:31:51,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:51,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24757 transitions. [2022-03-15 15:31:51,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:51,747 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:51,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:51,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable636 [2022-03-15 15:31:51,748 INFO L402 AbstractCegarLoop]: === Iteration 638 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:51,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:51,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1001077571, now seen corresponding path program 633 times [2022-03-15 15:31:51,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:51,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769943909] [2022-03-15 15:31:51,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:51,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:51,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:51,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:51,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769943909] [2022-03-15 15:31:51,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769943909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:51,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:51,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:51,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447578183] [2022-03-15 15:31:51,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:51,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:51,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:51,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:51,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:51,910 INFO L87 Difference]: Start difference. First operand 5223 states and 24757 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:52,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:52,126 INFO L93 Difference]: Finished difference Result 12234 states and 54655 transitions. [2022-03-15 15:31:52,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:52,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:52,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:52,167 INFO L225 Difference]: With dead ends: 12234 [2022-03-15 15:31:52,167 INFO L226 Difference]: Without dead ends: 11692 [2022-03-15 15:31:52,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:52,167 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 153 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:52,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 234 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:52,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11692 states. [2022-03-15 15:31:52,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11692 to 5331. [2022-03-15 15:31:52,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 4.719887429643527) internal successors, (25157), 5330 states have internal predecessors, (25157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:52,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 25157 transitions. [2022-03-15 15:31:52,358 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 25157 transitions. Word has length 29 [2022-03-15 15:31:52,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:52,358 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 25157 transitions. [2022-03-15 15:31:52,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:52,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 25157 transitions. [2022-03-15 15:31:52,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:52,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:52,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:52,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable637 [2022-03-15 15:31:52,372 INFO L402 AbstractCegarLoop]: === Iteration 639 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:52,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:52,372 INFO L85 PathProgramCache]: Analyzing trace with hash 786304189, now seen corresponding path program 634 times [2022-03-15 15:31:52,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:52,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80215658] [2022-03-15 15:31:52,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:52,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:52,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:52,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:52,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80215658] [2022-03-15 15:31:52,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80215658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:52,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:52,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:52,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477523483] [2022-03-15 15:31:52,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:52,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:52,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:52,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:52,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:52,491 INFO L87 Difference]: Start difference. First operand 5331 states and 25157 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:52,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:52,670 INFO L93 Difference]: Finished difference Result 12163 states and 54272 transitions. [2022-03-15 15:31:52,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:52,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:52,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:52,711 INFO L225 Difference]: With dead ends: 12163 [2022-03-15 15:31:52,711 INFO L226 Difference]: Without dead ends: 11584 [2022-03-15 15:31:52,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:52,711 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 182 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:52,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 184 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:52,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11584 states. [2022-03-15 15:31:52,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11584 to 5223. [2022-03-15 15:31:52,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 4.730563002680965) internal successors, (24703), 5222 states have internal predecessors, (24703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:52,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 24703 transitions. [2022-03-15 15:31:52,887 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 24703 transitions. Word has length 29 [2022-03-15 15:31:52,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:52,887 INFO L470 AbstractCegarLoop]: Abstraction has 5223 states and 24703 transitions. [2022-03-15 15:31:52,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 24703 transitions. [2022-03-15 15:31:52,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:52,899 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:52,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:52,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable638 [2022-03-15 15:31:52,899 INFO L402 AbstractCegarLoop]: === Iteration 640 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:52,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:52,900 INFO L85 PathProgramCache]: Analyzing trace with hash -613072609, now seen corresponding path program 635 times [2022-03-15 15:31:52,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:52,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274879736] [2022-03-15 15:31:52,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:52,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:53,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:53,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:53,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274879736] [2022-03-15 15:31:53,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274879736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:53,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:53,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:53,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615528452] [2022-03-15 15:31:53,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:53,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:53,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:53,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:53,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:53,076 INFO L87 Difference]: Start difference. First operand 5223 states and 24703 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:53,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:53,277 INFO L93 Difference]: Finished difference Result 12072 states and 53941 transitions. [2022-03-15 15:31:53,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:53,279 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:53,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:53,312 INFO L225 Difference]: With dead ends: 12072 [2022-03-15 15:31:53,313 INFO L226 Difference]: Without dead ends: 11595 [2022-03-15 15:31:53,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:53,313 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 174 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:53,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 203 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:53,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11595 states. [2022-03-15 15:31:53,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11595 to 5299. [2022-03-15 15:31:53,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 4.717063042657607) internal successors, (24991), 5298 states have internal predecessors, (24991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:53,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 24991 transitions. [2022-03-15 15:31:53,475 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 24991 transitions. Word has length 29 [2022-03-15 15:31:53,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:53,475 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 24991 transitions. [2022-03-15 15:31:53,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:53,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 24991 transitions. [2022-03-15 15:31:53,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:53,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:53,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:53,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable639 [2022-03-15 15:31:53,488 INFO L402 AbstractCegarLoop]: === Iteration 641 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:53,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:53,488 INFO L85 PathProgramCache]: Analyzing trace with hash 296532349, now seen corresponding path program 636 times [2022-03-15 15:31:53,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:53,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687565345] [2022-03-15 15:31:53,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:53,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:53,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:53,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687565345] [2022-03-15 15:31:53,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687565345] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:53,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:53,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:53,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884721496] [2022-03-15 15:31:53,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:53,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:53,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:53,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:53,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:53,681 INFO L87 Difference]: Start difference. First operand 5299 states and 24991 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:53,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:53,961 INFO L93 Difference]: Finished difference Result 12066 states and 53848 transitions. [2022-03-15 15:31:53,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:53,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:53,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:53,998 INFO L225 Difference]: With dead ends: 12066 [2022-03-15 15:31:53,998 INFO L226 Difference]: Without dead ends: 11449 [2022-03-15 15:31:53,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:53,999 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 178 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:53,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 192 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:31:54,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2022-03-15 15:31:54,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 5153. [2022-03-15 15:31:54,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.746506211180124) internal successors, (24454), 5152 states have internal predecessors, (24454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:54,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24454 transitions. [2022-03-15 15:31:54,165 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24454 transitions. Word has length 29 [2022-03-15 15:31:54,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:54,165 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24454 transitions. [2022-03-15 15:31:54,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:54,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24454 transitions. [2022-03-15 15:31:54,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:54,175 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:54,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:54,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable640 [2022-03-15 15:31:54,175 INFO L402 AbstractCegarLoop]: === Iteration 642 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:54,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:54,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2114541727, now seen corresponding path program 637 times [2022-03-15 15:31:54,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:54,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261878384] [2022-03-15 15:31:54,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:54,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:54,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:54,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:54,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261878384] [2022-03-15 15:31:54,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261878384] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:54,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:54,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:54,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58236034] [2022-03-15 15:31:54,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:54,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:54,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:54,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:54,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:54,350 INFO L87 Difference]: Start difference. First operand 5153 states and 24454 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:54,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:54,538 INFO L93 Difference]: Finished difference Result 11967 states and 53493 transitions. [2022-03-15 15:31:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:54,539 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:54,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:54,576 INFO L225 Difference]: With dead ends: 11967 [2022-03-15 15:31:54,576 INFO L226 Difference]: Without dead ends: 11425 [2022-03-15 15:31:54,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:54,576 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 184 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:54,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 213 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:54,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11425 states. [2022-03-15 15:31:54,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11425 to 5273. [2022-03-15 15:31:54,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5273 states, 5272 states have (on average 4.731790591805766) internal successors, (24946), 5272 states have internal predecessors, (24946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:54,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5273 states to 5273 states and 24946 transitions. [2022-03-15 15:31:54,726 INFO L78 Accepts]: Start accepts. Automaton has 5273 states and 24946 transitions. Word has length 29 [2022-03-15 15:31:54,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:54,726 INFO L470 AbstractCegarLoop]: Abstraction has 5273 states and 24946 transitions. [2022-03-15 15:31:54,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:54,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5273 states and 24946 transitions. [2022-03-15 15:31:54,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:54,736 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:54,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:54,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable641 [2022-03-15 15:31:54,736 INFO L402 AbstractCegarLoop]: === Iteration 643 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:54,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:54,736 INFO L85 PathProgramCache]: Analyzing trace with hash 426295455, now seen corresponding path program 638 times [2022-03-15 15:31:54,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:54,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091707610] [2022-03-15 15:31:54,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:54,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:54,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:54,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:54,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091707610] [2022-03-15 15:31:54,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091707610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:54,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:54,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:54,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126141260] [2022-03-15 15:31:54,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:54,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:54,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:54,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:54,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:54,885 INFO L87 Difference]: Start difference. First operand 5273 states and 24946 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:55,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:55,099 INFO L93 Difference]: Finished difference Result 11840 states and 52886 transitions. [2022-03-15 15:31:55,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:55,099 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:55,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:55,134 INFO L225 Difference]: With dead ends: 11840 [2022-03-15 15:31:55,134 INFO L226 Difference]: Without dead ends: 11345 [2022-03-15 15:31:55,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:55,134 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 171 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:55,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 219 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:55,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11345 states. [2022-03-15 15:31:55,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11345 to 5193. [2022-03-15 15:31:55,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.741525423728813) internal successors, (24618), 5192 states have internal predecessors, (24618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:55,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24618 transitions. [2022-03-15 15:31:55,283 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24618 transitions. Word has length 29 [2022-03-15 15:31:55,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:55,283 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24618 transitions. [2022-03-15 15:31:55,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:55,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24618 transitions. [2022-03-15 15:31:55,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:55,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:55,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:55,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable642 [2022-03-15 15:31:55,294 INFO L402 AbstractCegarLoop]: === Iteration 644 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:55,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:55,294 INFO L85 PathProgramCache]: Analyzing trace with hash 81529085, now seen corresponding path program 639 times [2022-03-15 15:31:55,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:55,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509243075] [2022-03-15 15:31:55,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:55,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:55,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:55,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:55,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509243075] [2022-03-15 15:31:55,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509243075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:55,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:55,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:55,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252808615] [2022-03-15 15:31:55,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:55,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:55,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:55,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:55,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:55,421 INFO L87 Difference]: Start difference. First operand 5193 states and 24618 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:55,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:55,582 INFO L93 Difference]: Finished difference Result 12051 states and 53845 transitions. [2022-03-15 15:31:55,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:55,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:55,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:55,617 INFO L225 Difference]: With dead ends: 12051 [2022-03-15 15:31:55,617 INFO L226 Difference]: Without dead ends: 11509 [2022-03-15 15:31:55,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:55,618 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 156 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:55,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 219 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:55,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11509 states. [2022-03-15 15:31:55,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11509 to 5301. [2022-03-15 15:31:55,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5301 states, 5300 states have (on average 4.720377358490566) internal successors, (25018), 5300 states have internal predecessors, (25018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:55,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5301 states to 5301 states and 25018 transitions. [2022-03-15 15:31:55,770 INFO L78 Accepts]: Start accepts. Automaton has 5301 states and 25018 transitions. Word has length 29 [2022-03-15 15:31:55,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:55,770 INFO L470 AbstractCegarLoop]: Abstraction has 5301 states and 25018 transitions. [2022-03-15 15:31:55,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:55,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5301 states and 25018 transitions. [2022-03-15 15:31:55,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:55,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:55,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:55,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable643 [2022-03-15 15:31:55,782 INFO L402 AbstractCegarLoop]: === Iteration 645 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:55,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:55,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1799061345, now seen corresponding path program 640 times [2022-03-15 15:31:55,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:55,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799129578] [2022-03-15 15:31:55,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:55,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:55,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:55,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799129578] [2022-03-15 15:31:55,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799129578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:55,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:55,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:55,962 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283079269] [2022-03-15 15:31:55,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:55,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:55,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:55,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:55,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:55,963 INFO L87 Difference]: Start difference. First operand 5301 states and 25018 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:56,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:56,174 INFO L93 Difference]: Finished difference Result 11980 states and 53462 transitions. [2022-03-15 15:31:56,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:56,174 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:56,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:56,212 INFO L225 Difference]: With dead ends: 11980 [2022-03-15 15:31:56,213 INFO L226 Difference]: Without dead ends: 11401 [2022-03-15 15:31:56,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:56,213 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 167 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:56,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 208 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:56,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11401 states. [2022-03-15 15:31:56,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11401 to 5193. [2022-03-15 15:31:56,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.73382126348228) internal successors, (24578), 5192 states have internal predecessors, (24578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:56,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24578 transitions. [2022-03-15 15:31:56,428 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24578 transitions. Word has length 29 [2022-03-15 15:31:56,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:56,428 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24578 transitions. [2022-03-15 15:31:56,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:56,428 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24578 transitions. [2022-03-15 15:31:56,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:56,438 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:56,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:56,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable644 [2022-03-15 15:31:56,439 INFO L402 AbstractCegarLoop]: === Iteration 646 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:56,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:56,440 INFO L85 PathProgramCache]: Analyzing trace with hash 113248415, now seen corresponding path program 641 times [2022-03-15 15:31:56,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:56,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80811722] [2022-03-15 15:31:56,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:56,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:56,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:56,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:56,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80811722] [2022-03-15 15:31:56,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80811722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:56,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:56,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:56,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648816193] [2022-03-15 15:31:56,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:56,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:56,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:56,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:56,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:56,600 INFO L87 Difference]: Start difference. First operand 5193 states and 24578 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:56,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:56,811 INFO L93 Difference]: Finished difference Result 11737 states and 52467 transitions. [2022-03-15 15:31:56,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:56,811 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:56,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:56,847 INFO L225 Difference]: With dead ends: 11737 [2022-03-15 15:31:56,847 INFO L226 Difference]: Without dead ends: 11322 [2022-03-15 15:31:56,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:56,848 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 156 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:56,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 237 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:56,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11322 states. [2022-03-15 15:31:56,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11322 to 5241. [2022-03-15 15:31:57,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5241 states, 5240 states have (on average 4.724045801526717) internal successors, (24754), 5240 states have internal predecessors, (24754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:57,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 24754 transitions. [2022-03-15 15:31:57,020 INFO L78 Accepts]: Start accepts. Automaton has 5241 states and 24754 transitions. Word has length 29 [2022-03-15 15:31:57,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:57,020 INFO L470 AbstractCegarLoop]: Abstraction has 5241 states and 24754 transitions. [2022-03-15 15:31:57,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:57,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5241 states and 24754 transitions. [2022-03-15 15:31:57,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:57,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:57,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:57,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable645 [2022-03-15 15:31:57,031 INFO L402 AbstractCegarLoop]: === Iteration 647 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:57,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:57,032 INFO L85 PathProgramCache]: Analyzing trace with hash -2002831235, now seen corresponding path program 642 times [2022-03-15 15:31:57,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:57,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151223772] [2022-03-15 15:31:57,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:57,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:57,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:57,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:57,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151223772] [2022-03-15 15:31:57,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151223772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:57,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:57,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:57,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318900556] [2022-03-15 15:31:57,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:57,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:57,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:57,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:57,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:57,160 INFO L87 Difference]: Start difference. First operand 5241 states and 24754 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:57,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:57,346 INFO L93 Difference]: Finished difference Result 11793 states and 52671 transitions. [2022-03-15 15:31:57,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:57,346 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:57,384 INFO L225 Difference]: With dead ends: 11793 [2022-03-15 15:31:57,384 INFO L226 Difference]: Without dead ends: 11234 [2022-03-15 15:31:57,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:57,384 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 175 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:57,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 216 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:57,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-03-15 15:31:57,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 5153. [2022-03-15 15:31:57,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.742624223602484) internal successors, (24434), 5152 states have internal predecessors, (24434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:57,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24434 transitions. [2022-03-15 15:31:57,554 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24434 transitions. Word has length 29 [2022-03-15 15:31:57,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:57,554 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24434 transitions. [2022-03-15 15:31:57,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:57,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24434 transitions. [2022-03-15 15:31:57,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:57,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:57,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:57,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable646 [2022-03-15 15:31:57,565 INFO L402 AbstractCegarLoop]: === Iteration 648 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:57,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:57,565 INFO L85 PathProgramCache]: Analyzing trace with hash -2100904831, now seen corresponding path program 643 times [2022-03-15 15:31:57,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:57,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227070231] [2022-03-15 15:31:57,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:57,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:57,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:57,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227070231] [2022-03-15 15:31:57,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227070231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:57,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:57,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:57,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939568393] [2022-03-15 15:31:57,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:57,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:57,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:57,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:57,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:57,675 INFO L87 Difference]: Start difference. First operand 5153 states and 24434 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:57,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:57,894 INFO L93 Difference]: Finished difference Result 11660 states and 52187 transitions. [2022-03-15 15:31:57,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:57,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:57,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:57,932 INFO L225 Difference]: With dead ends: 11660 [2022-03-15 15:31:57,932 INFO L226 Difference]: Without dead ends: 11183 [2022-03-15 15:31:57,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:57,932 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 176 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:57,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 207 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:57,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11183 states. [2022-03-15 15:31:58,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11183 to 5225. [2022-03-15 15:31:58,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.73468606431853) internal successors, (24734), 5224 states have internal predecessors, (24734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:58,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24734 transitions. [2022-03-15 15:31:58,108 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24734 transitions. Word has length 29 [2022-03-15 15:31:58,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:58,108 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24734 transitions. [2022-03-15 15:31:58,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:58,109 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24734 transitions. [2022-03-15 15:31:58,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:58,119 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:58,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:58,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable647 [2022-03-15 15:31:58,119 INFO L402 AbstractCegarLoop]: === Iteration 649 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:58,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:58,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1347265503, now seen corresponding path program 644 times [2022-03-15 15:31:58,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:58,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085179801] [2022-03-15 15:31:58,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:58,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:58,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:58,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:58,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085179801] [2022-03-15 15:31:58,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085179801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:58,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:58,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:58,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98541717] [2022-03-15 15:31:58,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:58,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:58,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:58,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:58,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:58,290 INFO L87 Difference]: Start difference. First operand 5225 states and 24734 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:58,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:58,471 INFO L93 Difference]: Finished difference Result 11598 states and 51870 transitions. [2022-03-15 15:31:58,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:58,471 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:58,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:58,507 INFO L225 Difference]: With dead ends: 11598 [2022-03-15 15:31:58,507 INFO L226 Difference]: Without dead ends: 11135 [2022-03-15 15:31:58,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:58,507 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 175 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:58,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 206 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:58,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11135 states. [2022-03-15 15:31:58,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11135 to 5177. [2022-03-15 15:31:58,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.739953632148377) internal successors, (24534), 5176 states have internal predecessors, (24534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:58,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24534 transitions. [2022-03-15 15:31:58,676 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24534 transitions. Word has length 29 [2022-03-15 15:31:58,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:58,676 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24534 transitions. [2022-03-15 15:31:58,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:58,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24534 transitions. [2022-03-15 15:31:58,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:58,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:58,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:58,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable648 [2022-03-15 15:31:58,687 INFO L402 AbstractCegarLoop]: === Iteration 650 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:58,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:58,687 INFO L85 PathProgramCache]: Analyzing trace with hash 161049823, now seen corresponding path program 645 times [2022-03-15 15:31:58,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:58,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14991693] [2022-03-15 15:31:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:58,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:58,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:58,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:58,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14991693] [2022-03-15 15:31:58,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14991693] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:58,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:58,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:58,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122750234] [2022-03-15 15:31:58,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:58,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:58,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:58,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:58,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:58,809 INFO L87 Difference]: Start difference. First operand 5177 states and 24534 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:59,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:59,010 INFO L93 Difference]: Finished difference Result 11744 states and 52555 transitions. [2022-03-15 15:31:59,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:59,010 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:59,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:59,048 INFO L225 Difference]: With dead ends: 11744 [2022-03-15 15:31:59,048 INFO L226 Difference]: Without dead ends: 11267 [2022-03-15 15:31:59,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:59,048 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 154 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:59,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 213 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:59,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11267 states. [2022-03-15 15:31:59,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11267 to 5253. [2022-03-15 15:31:59,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.7261995430312265) internal successors, (24822), 5252 states have internal predecessors, (24822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:59,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24822 transitions. [2022-03-15 15:31:59,220 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24822 transitions. Word has length 29 [2022-03-15 15:31:59,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:59,220 INFO L470 AbstractCegarLoop]: Abstraction has 5253 states and 24822 transitions. [2022-03-15 15:31:59,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:59,221 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24822 transitions. [2022-03-15 15:31:59,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:59,231 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:59,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:59,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable649 [2022-03-15 15:31:59,231 INFO L402 AbstractCegarLoop]: === Iteration 651 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:59,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:59,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1697649887, now seen corresponding path program 646 times [2022-03-15 15:31:59,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:59,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224794321] [2022-03-15 15:31:59,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:59,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:59,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:59,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:59,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224794321] [2022-03-15 15:31:59,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224794321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:59,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:59,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:59,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889551749] [2022-03-15 15:31:59,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:59,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:59,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:59,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:59,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:59,409 INFO L87 Difference]: Start difference. First operand 5253 states and 24822 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:59,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:31:59,617 INFO L93 Difference]: Finished difference Result 11738 states and 52462 transitions. [2022-03-15 15:31:59,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:31:59,617 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:31:59,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:31:59,654 INFO L225 Difference]: With dead ends: 11738 [2022-03-15 15:31:59,654 INFO L226 Difference]: Without dead ends: 11191 [2022-03-15 15:31:59,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:31:59,654 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 166 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:31:59,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 188 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:31:59,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11191 states. [2022-03-15 15:31:59,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11191 to 5177. [2022-03-15 15:31:59,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.735316846986089) internal successors, (24510), 5176 states have internal predecessors, (24510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:59,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24510 transitions. [2022-03-15 15:31:59,822 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24510 transitions. Word has length 29 [2022-03-15 15:31:59,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:31:59,822 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24510 transitions. [2022-03-15 15:31:59,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:31:59,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24510 transitions. [2022-03-15 15:31:59,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:31:59,832 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:31:59,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:31:59,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable650 [2022-03-15 15:31:59,833 INFO L402 AbstractCegarLoop]: === Iteration 652 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:31:59,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:31:59,833 INFO L85 PathProgramCache]: Analyzing trace with hash -695698243, now seen corresponding path program 647 times [2022-03-15 15:31:59,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:31:59,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254775606] [2022-03-15 15:31:59,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:31:59,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:31:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:31:59,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:31:59,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:31:59,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254775606] [2022-03-15 15:31:59,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254775606] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:31:59,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:31:59,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:31:59,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770232451] [2022-03-15 15:31:59,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:31:59,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:31:59,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:31:59,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:31:59,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:31:59,983 INFO L87 Difference]: Start difference. First operand 5177 states and 24510 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:00,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:00,175 INFO L93 Difference]: Finished difference Result 11592 states and 51853 transitions. [2022-03-15 15:32:00,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:00,175 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:00,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:00,211 INFO L225 Difference]: With dead ends: 11592 [2022-03-15 15:32:00,211 INFO L226 Difference]: Without dead ends: 11177 [2022-03-15 15:32:00,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:00,211 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 180 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:00,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 207 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:00,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11177 states. [2022-03-15 15:32:00,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11177 to 5225. [2022-03-15 15:32:00,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.725497702909648) internal successors, (24686), 5224 states have internal predecessors, (24686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:00,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24686 transitions. [2022-03-15 15:32:00,378 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24686 transitions. Word has length 29 [2022-03-15 15:32:00,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:00,378 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24686 transitions. [2022-03-15 15:32:00,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:00,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24686 transitions. [2022-03-15 15:32:00,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:00,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:00,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:00,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable651 [2022-03-15 15:32:00,389 INFO L402 AbstractCegarLoop]: === Iteration 653 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:00,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:00,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1869657953, now seen corresponding path program 648 times [2022-03-15 15:32:00,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:00,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077303541] [2022-03-15 15:32:00,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:00,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:00,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:00,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077303541] [2022-03-15 15:32:00,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077303541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:00,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:00,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:00,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521226690] [2022-03-15 15:32:00,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:00,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:00,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:00,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:00,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:00,539 INFO L87 Difference]: Start difference. First operand 5225 states and 24686 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:00,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:00,776 INFO L93 Difference]: Finished difference Result 11648 states and 52057 transitions. [2022-03-15 15:32:00,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:00,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:00,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:00,812 INFO L225 Difference]: With dead ends: 11648 [2022-03-15 15:32:00,812 INFO L226 Difference]: Without dead ends: 11077 [2022-03-15 15:32:00,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:00,812 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 164 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:00,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 229 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:00,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11077 states. [2022-03-15 15:32:00,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11077 to 5125. [2022-03-15 15:32:00,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.751756440281031) internal successors, (24348), 5124 states have internal predecessors, (24348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:00,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24348 transitions. [2022-03-15 15:32:00,972 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24348 transitions. Word has length 29 [2022-03-15 15:32:00,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:00,972 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24348 transitions. [2022-03-15 15:32:00,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:00,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24348 transitions. [2022-03-15 15:32:00,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:00,982 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:00,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:00,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable652 [2022-03-15 15:32:00,982 INFO L402 AbstractCegarLoop]: === Iteration 654 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:00,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:00,982 INFO L85 PathProgramCache]: Analyzing trace with hash 2140307487, now seen corresponding path program 649 times [2022-03-15 15:32:00,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:00,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494160058] [2022-03-15 15:32:00,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:00,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:01,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:01,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:01,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494160058] [2022-03-15 15:32:01,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494160058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:01,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:01,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:01,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912474163] [2022-03-15 15:32:01,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:01,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:01,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:01,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:01,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:01,166 INFO L87 Difference]: Start difference. First operand 5125 states and 24348 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:01,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:01,401 INFO L93 Difference]: Finished difference Result 12530 states and 56027 transitions. [2022-03-15 15:32:01,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:01,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:01,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:01,441 INFO L225 Difference]: With dead ends: 12530 [2022-03-15 15:32:01,441 INFO L226 Difference]: Without dead ends: 11988 [2022-03-15 15:32:01,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:01,441 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 173 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:01,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 249 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:01,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11988 states. [2022-03-15 15:32:01,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11988 to 5406. [2022-03-15 15:32:01,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 4.71822386679001) internal successors, (25502), 5405 states have internal predecessors, (25502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:01,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 25502 transitions. [2022-03-15 15:32:01,623 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 25502 transitions. Word has length 29 [2022-03-15 15:32:01,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:01,623 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 25502 transitions. [2022-03-15 15:32:01,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:01,623 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 25502 transitions. [2022-03-15 15:32:01,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:01,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:01,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:01,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable653 [2022-03-15 15:32:01,635 INFO L402 AbstractCegarLoop]: === Iteration 655 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:01,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:01,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1073597183, now seen corresponding path program 650 times [2022-03-15 15:32:01,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:01,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369187241] [2022-03-15 15:32:01,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:01,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:01,789 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:01,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369187241] [2022-03-15 15:32:01,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369187241] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:01,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:01,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:01,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194361848] [2022-03-15 15:32:01,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:01,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:01,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:01,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:01,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:01,790 INFO L87 Difference]: Start difference. First operand 5406 states and 25502 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:02,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:02,024 INFO L93 Difference]: Finished difference Result 12465 states and 55658 transitions. [2022-03-15 15:32:02,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:02,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:02,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:02,061 INFO L225 Difference]: With dead ends: 12465 [2022-03-15 15:32:02,061 INFO L226 Difference]: Without dead ends: 11845 [2022-03-15 15:32:02,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:02,061 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 194 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:02,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 225 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:02,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11845 states. [2022-03-15 15:32:02,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11845 to 5263. [2022-03-15 15:32:02,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.734321550741163) internal successors, (24912), 5262 states have internal predecessors, (24912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:02,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24912 transitions. [2022-03-15 15:32:02,227 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24912 transitions. Word has length 29 [2022-03-15 15:32:02,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:02,227 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 24912 transitions. [2022-03-15 15:32:02,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:02,227 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24912 transitions. [2022-03-15 15:32:02,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:02,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:02,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:02,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable654 [2022-03-15 15:32:02,239 INFO L402 AbstractCegarLoop]: === Iteration 656 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:02,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:02,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1061689313, now seen corresponding path program 651 times [2022-03-15 15:32:02,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:02,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136227306] [2022-03-15 15:32:02,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:02,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:02,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:02,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:02,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136227306] [2022-03-15 15:32:02,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136227306] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:02,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:02,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:02,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732830281] [2022-03-15 15:32:02,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:02,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:02,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:02,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:02,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:02,441 INFO L87 Difference]: Start difference. First operand 5263 states and 24912 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:02,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:02,673 INFO L93 Difference]: Finished difference Result 12495 states and 55836 transitions. [2022-03-15 15:32:02,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:02,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:02,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:02,712 INFO L225 Difference]: With dead ends: 12495 [2022-03-15 15:32:02,712 INFO L226 Difference]: Without dead ends: 11953 [2022-03-15 15:32:02,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:02,712 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 176 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:02,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 209 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:02,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11953 states. [2022-03-15 15:32:02,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11953 to 5373. [2022-03-15 15:32:02,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5373 states, 5372 states have (on average 4.712769918093819) internal successors, (25317), 5372 states have internal predecessors, (25317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 25317 transitions. [2022-03-15 15:32:02,891 INFO L78 Accepts]: Start accepts. Automaton has 5373 states and 25317 transitions. Word has length 29 [2022-03-15 15:32:02,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:02,891 INFO L470 AbstractCegarLoop]: Abstraction has 5373 states and 25317 transitions. [2022-03-15 15:32:02,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 5373 states and 25317 transitions. [2022-03-15 15:32:02,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:02,903 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:02,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:02,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable655 [2022-03-15 15:32:02,904 INFO L402 AbstractCegarLoop]: === Iteration 657 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:02,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:02,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1012121569, now seen corresponding path program 652 times [2022-03-15 15:32:02,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:02,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331761766] [2022-03-15 15:32:02,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:02,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:03,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:03,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:03,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331761766] [2022-03-15 15:32:03,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331761766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:03,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:03,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:03,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106363627] [2022-03-15 15:32:03,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:03,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:03,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:03,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:03,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:03,096 INFO L87 Difference]: Start difference. First operand 5373 states and 25317 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:03,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:03,328 INFO L93 Difference]: Finished difference Result 12428 states and 55463 transitions. [2022-03-15 15:32:03,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:03,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:03,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:03,371 INFO L225 Difference]: With dead ends: 12428 [2022-03-15 15:32:03,371 INFO L226 Difference]: Without dead ends: 11843 [2022-03-15 15:32:03,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:03,371 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 183 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:03,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 192 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:03,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11843 states. [2022-03-15 15:32:03,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11843 to 5263. [2022-03-15 15:32:03,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.723869251235271) internal successors, (24857), 5262 states have internal predecessors, (24857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:03,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24857 transitions. [2022-03-15 15:32:03,648 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24857 transitions. Word has length 29 [2022-03-15 15:32:03,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:03,648 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 24857 transitions. [2022-03-15 15:32:03,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:03,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24857 transitions. [2022-03-15 15:32:03,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:03,658 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:03,658 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:03,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable656 [2022-03-15 15:32:03,659 INFO L402 AbstractCegarLoop]: === Iteration 658 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:03,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:03,659 INFO L85 PathProgramCache]: Analyzing trace with hash -673684351, now seen corresponding path program 653 times [2022-03-15 15:32:03,659 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:03,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634620757] [2022-03-15 15:32:03,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:03,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:03,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:03,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:03,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634620757] [2022-03-15 15:32:03,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634620757] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:03,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:03,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:03,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135702981] [2022-03-15 15:32:03,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:03,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:03,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:03,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:03,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:03,829 INFO L87 Difference]: Start difference. First operand 5263 states and 24857 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:04,048 INFO L93 Difference]: Finished difference Result 12333 states and 55121 transitions. [2022-03-15 15:32:04,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:04,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:04,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:04,084 INFO L225 Difference]: With dead ends: 12333 [2022-03-15 15:32:04,084 INFO L226 Difference]: Without dead ends: 11856 [2022-03-15 15:32:04,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:04,084 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 157 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:04,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 242 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:04,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11856 states. [2022-03-15 15:32:04,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11856 to 5341. [2022-03-15 15:32:04,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5340 states have (on average 4.709737827715355) internal successors, (25150), 5340 states have internal predecessors, (25150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:04,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 25150 transitions. [2022-03-15 15:32:04,232 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 25150 transitions. Word has length 29 [2022-03-15 15:32:04,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:04,233 INFO L470 AbstractCegarLoop]: Abstraction has 5341 states and 25150 transitions. [2022-03-15 15:32:04,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:04,233 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 25150 transitions. [2022-03-15 15:32:04,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:04,243 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:04,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:04,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable657 [2022-03-15 15:32:04,243 INFO L402 AbstractCegarLoop]: === Iteration 659 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:04,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:04,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1505203295, now seen corresponding path program 654 times [2022-03-15 15:32:04,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:04,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313042768] [2022-03-15 15:32:04,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:04,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:04,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:04,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:04,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313042768] [2022-03-15 15:32:04,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313042768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:04,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:04,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:04,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361684248] [2022-03-15 15:32:04,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:04,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:04,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:04,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:04,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:04,380 INFO L87 Difference]: Start difference. First operand 5341 states and 25150 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:04,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:04,591 INFO L93 Difference]: Finished difference Result 12331 states and 55038 transitions. [2022-03-15 15:32:04,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:04,592 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:04,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:04,626 INFO L225 Difference]: With dead ends: 12331 [2022-03-15 15:32:04,626 INFO L226 Difference]: Without dead ends: 11691 [2022-03-15 15:32:04,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:04,626 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 171 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:04,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 194 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:04,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11691 states. [2022-03-15 15:32:04,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11691 to 5176. [2022-03-15 15:32:04,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 4.742608695652174) internal successors, (24543), 5175 states have internal predecessors, (24543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:04,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 24543 transitions. [2022-03-15 15:32:04,767 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 24543 transitions. Word has length 29 [2022-03-15 15:32:04,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:04,767 INFO L470 AbstractCegarLoop]: Abstraction has 5176 states and 24543 transitions. [2022-03-15 15:32:04,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:04,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 24543 transitions. [2022-03-15 15:32:04,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:04,777 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:04,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:04,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable658 [2022-03-15 15:32:04,777 INFO L402 AbstractCegarLoop]: === Iteration 660 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:04,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:04,777 INFO L85 PathProgramCache]: Analyzing trace with hash -696612739, now seen corresponding path program 655 times [2022-03-15 15:32:04,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:04,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631163612] [2022-03-15 15:32:04,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:04,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:04,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:04,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:04,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631163612] [2022-03-15 15:32:04,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631163612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:04,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:04,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:04,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511708292] [2022-03-15 15:32:04,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:04,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:04,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:04,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:04,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:04,939 INFO L87 Difference]: Start difference. First operand 5176 states and 24543 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:05,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:05,156 INFO L93 Difference]: Finished difference Result 12505 states and 55906 transitions. [2022-03-15 15:32:05,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:05,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:05,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:05,192 INFO L225 Difference]: With dead ends: 12505 [2022-03-15 15:32:05,192 INFO L226 Difference]: Without dead ends: 11963 [2022-03-15 15:32:05,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:05,192 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 175 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:05,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 210 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:05,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11963 states. [2022-03-15 15:32:05,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11963 to 5389. [2022-03-15 15:32:05,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5389 states, 5388 states have (on average 4.715478841870824) internal successors, (25407), 5388 states have internal predecessors, (25407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:05,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5389 states to 5389 states and 25407 transitions. [2022-03-15 15:32:05,342 INFO L78 Accepts]: Start accepts. Automaton has 5389 states and 25407 transitions. Word has length 29 [2022-03-15 15:32:05,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:05,342 INFO L470 AbstractCegarLoop]: Abstraction has 5389 states and 25407 transitions. [2022-03-15 15:32:05,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:05,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5389 states and 25407 transitions. [2022-03-15 15:32:05,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:05,352 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:05,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:05,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable659 [2022-03-15 15:32:05,353 INFO L402 AbstractCegarLoop]: === Iteration 661 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:05,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:05,353 INFO L85 PathProgramCache]: Analyzing trace with hash 384449887, now seen corresponding path program 656 times [2022-03-15 15:32:05,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:05,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068821658] [2022-03-15 15:32:05,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:05,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:05,496 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:05,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068821658] [2022-03-15 15:32:05,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068821658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:05,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:05,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:05,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617758341] [2022-03-15 15:32:05,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:05,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:05,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:05,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:05,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:05,497 INFO L87 Difference]: Start difference. First operand 5389 states and 25407 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:05,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:05,731 INFO L93 Difference]: Finished difference Result 12440 states and 55537 transitions. [2022-03-15 15:32:05,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:05,732 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:05,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:05,766 INFO L225 Difference]: With dead ends: 12440 [2022-03-15 15:32:05,766 INFO L226 Difference]: Without dead ends: 11820 [2022-03-15 15:32:05,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:05,766 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 159 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:05,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 253 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:05,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11820 states. [2022-03-15 15:32:05,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11820 to 5246. [2022-03-15 15:32:05,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5246 states, 5245 states have (on average 4.7317445185891325) internal successors, (24818), 5245 states have internal predecessors, (24818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:05,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5246 states to 5246 states and 24818 transitions. [2022-03-15 15:32:05,912 INFO L78 Accepts]: Start accepts. Automaton has 5246 states and 24818 transitions. Word has length 29 [2022-03-15 15:32:05,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:05,912 INFO L470 AbstractCegarLoop]: Abstraction has 5246 states and 24818 transitions. [2022-03-15 15:32:05,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:05,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5246 states and 24818 transitions. [2022-03-15 15:32:05,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:05,922 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:05,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:05,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable660 [2022-03-15 15:32:05,922 INFO L402 AbstractCegarLoop]: === Iteration 662 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:05,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:05,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1248708639, now seen corresponding path program 657 times [2022-03-15 15:32:05,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:05,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587387028] [2022-03-15 15:32:05,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:05,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:06,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:06,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587387028] [2022-03-15 15:32:06,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587387028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:06,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:06,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:06,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556171798] [2022-03-15 15:32:06,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:06,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:06,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:06,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:06,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:06,076 INFO L87 Difference]: Start difference. First operand 5246 states and 24818 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:06,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:06,301 INFO L93 Difference]: Finished difference Result 12464 states and 55697 transitions. [2022-03-15 15:32:06,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:06,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:06,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:06,340 INFO L225 Difference]: With dead ends: 12464 [2022-03-15 15:32:06,341 INFO L226 Difference]: Without dead ends: 11922 [2022-03-15 15:32:06,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:06,341 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 183 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:06,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 201 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:06,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11922 states. [2022-03-15 15:32:06,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11922 to 5354. [2022-03-15 15:32:06,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5353 states have (on average 4.711003175789277) internal successors, (25218), 5353 states have internal predecessors, (25218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:06,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 25218 transitions. [2022-03-15 15:32:06,518 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 25218 transitions. Word has length 29 [2022-03-15 15:32:06,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:06,518 INFO L470 AbstractCegarLoop]: Abstraction has 5354 states and 25218 transitions. [2022-03-15 15:32:06,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:06,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 25218 transitions. [2022-03-15 15:32:06,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:06,529 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:06,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:06,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable661 [2022-03-15 15:32:06,529 INFO L402 AbstractCegarLoop]: === Iteration 663 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:06,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:06,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1258876897, now seen corresponding path program 658 times [2022-03-15 15:32:06,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:06,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304386832] [2022-03-15 15:32:06,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:06,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:06,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:06,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:06,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304386832] [2022-03-15 15:32:06,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304386832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:06,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:06,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:06,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024078541] [2022-03-15 15:32:06,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:06,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:06,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:06,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:06,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:06,691 INFO L87 Difference]: Start difference. First operand 5354 states and 25218 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:06,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:06,904 INFO L93 Difference]: Finished difference Result 12393 states and 55314 transitions. [2022-03-15 15:32:06,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:06,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:06,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:06,941 INFO L225 Difference]: With dead ends: 12393 [2022-03-15 15:32:06,941 INFO L226 Difference]: Without dead ends: 11814 [2022-03-15 15:32:06,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:06,941 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 189 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:06,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 193 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:06,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11814 states. [2022-03-15 15:32:07,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11814 to 5246. [2022-03-15 15:32:07,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5246 states, 5245 states have (on average 4.721448999046711) internal successors, (24764), 5245 states have internal predecessors, (24764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:07,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5246 states to 5246 states and 24764 transitions. [2022-03-15 15:32:07,099 INFO L78 Accepts]: Start accepts. Automaton has 5246 states and 24764 transitions. Word has length 29 [2022-03-15 15:32:07,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:07,099 INFO L470 AbstractCegarLoop]: Abstraction has 5246 states and 24764 transitions. [2022-03-15 15:32:07,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:07,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5246 states and 24764 transitions. [2022-03-15 15:32:07,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:07,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:07,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:07,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable662 [2022-03-15 15:32:07,109 INFO L402 AbstractCegarLoop]: === Iteration 664 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:07,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:07,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1636713601, now seen corresponding path program 659 times [2022-03-15 15:32:07,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:07,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105259416] [2022-03-15 15:32:07,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:07,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:07,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:07,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:07,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105259416] [2022-03-15 15:32:07,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105259416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:07,251 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:07,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:07,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646571495] [2022-03-15 15:32:07,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:07,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:07,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:07,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:07,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:07,252 INFO L87 Difference]: Start difference. First operand 5246 states and 24764 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:07,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:07,510 INFO L93 Difference]: Finished difference Result 12302 states and 54983 transitions. [2022-03-15 15:32:07,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:07,510 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:07,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:07,545 INFO L225 Difference]: With dead ends: 12302 [2022-03-15 15:32:07,545 INFO L226 Difference]: Without dead ends: 11825 [2022-03-15 15:32:07,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:07,546 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 172 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:07,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 211 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:32:07,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11825 states. [2022-03-15 15:32:07,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11825 to 5322. [2022-03-15 15:32:07,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5321 states have (on average 4.7081375681262925) internal successors, (25052), 5321 states have internal predecessors, (25052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:07,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 25052 transitions. [2022-03-15 15:32:07,692 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 25052 transitions. Word has length 29 [2022-03-15 15:32:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:07,692 INFO L470 AbstractCegarLoop]: Abstraction has 5322 states and 25052 transitions. [2022-03-15 15:32:07,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 25052 transitions. [2022-03-15 15:32:07,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:07,702 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:07,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:07,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable663 [2022-03-15 15:32:07,702 INFO L402 AbstractCegarLoop]: === Iteration 665 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:07,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:07,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1748648737, now seen corresponding path program 660 times [2022-03-15 15:32:07,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:07,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973778888] [2022-03-15 15:32:07,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:07,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:07,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:07,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:07,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973778888] [2022-03-15 15:32:07,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973778888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:07,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:07,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:07,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648022987] [2022-03-15 15:32:07,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:07,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:07,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:07,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:07,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:07,873 INFO L87 Difference]: Start difference. First operand 5322 states and 25052 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:08,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:08,101 INFO L93 Difference]: Finished difference Result 12296 states and 54890 transitions. [2022-03-15 15:32:08,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:08,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:08,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:08,136 INFO L225 Difference]: With dead ends: 12296 [2022-03-15 15:32:08,136 INFO L226 Difference]: Without dead ends: 11679 [2022-03-15 15:32:08,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:08,136 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 177 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:08,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 202 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:08,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11679 states. [2022-03-15 15:32:08,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11679 to 5176. [2022-03-15 15:32:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 4.735845410628019) internal successors, (24508), 5175 states have internal predecessors, (24508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:08,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 24508 transitions. [2022-03-15 15:32:08,296 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 24508 transitions. Word has length 29 [2022-03-15 15:32:08,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:08,296 INFO L470 AbstractCegarLoop]: Abstraction has 5176 states and 24508 transitions. [2022-03-15 15:32:08,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:08,296 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 24508 transitions. [2022-03-15 15:32:08,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:08,306 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:08,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:08,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable664 [2022-03-15 15:32:08,306 INFO L402 AbstractCegarLoop]: === Iteration 666 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:08,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:08,306 INFO L85 PathProgramCache]: Analyzing trace with hash 29376543, now seen corresponding path program 661 times [2022-03-15 15:32:08,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:08,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361821259] [2022-03-15 15:32:08,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:08,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:08,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:08,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:08,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361821259] [2022-03-15 15:32:08,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361821259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:08,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:08,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:08,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127547521] [2022-03-15 15:32:08,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:08,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:08,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:08,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:08,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:08,476 INFO L87 Difference]: Start difference. First operand 5176 states and 24508 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:08,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:08,732 INFO L93 Difference]: Finished difference Result 12419 states and 55567 transitions. [2022-03-15 15:32:08,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:08,733 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:08,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:08,769 INFO L225 Difference]: With dead ends: 12419 [2022-03-15 15:32:08,769 INFO L226 Difference]: Without dead ends: 11877 [2022-03-15 15:32:08,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:08,769 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 168 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:08,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 244 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:32:08,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11877 states. [2022-03-15 15:32:08,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11877 to 5340. [2022-03-15 15:32:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 5339 states have (on average 4.7188612099644125) internal successors, (25194), 5339 states have internal predecessors, (25194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:08,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 25194 transitions. [2022-03-15 15:32:08,936 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 25194 transitions. Word has length 29 [2022-03-15 15:32:08,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:08,937 INFO L470 AbstractCegarLoop]: Abstraction has 5340 states and 25194 transitions. [2022-03-15 15:32:08,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:08,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 25194 transitions. [2022-03-15 15:32:08,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:08,948 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:08,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:08,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable665 [2022-03-15 15:32:08,948 INFO L402 AbstractCegarLoop]: === Iteration 667 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:08,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:08,948 INFO L85 PathProgramCache]: Analyzing trace with hash 78944287, now seen corresponding path program 662 times [2022-03-15 15:32:08,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:08,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539745191] [2022-03-15 15:32:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:08,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:09,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:09,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:09,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539745191] [2022-03-15 15:32:09,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539745191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:09,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:09,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:09,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336133300] [2022-03-15 15:32:09,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:09,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:09,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:09,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:09,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:09,134 INFO L87 Difference]: Start difference. First operand 5340 states and 25194 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:09,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:09,380 INFO L93 Difference]: Finished difference Result 12352 states and 55194 transitions. [2022-03-15 15:32:09,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:09,381 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:09,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:09,416 INFO L225 Difference]: With dead ends: 12352 [2022-03-15 15:32:09,416 INFO L226 Difference]: Without dead ends: 11767 [2022-03-15 15:32:09,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:09,416 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 152 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:09,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 242 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:09,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11767 states. [2022-03-15 15:32:09,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11767 to 5230. [2022-03-15 15:32:09,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5229 states have (on average 4.730349971313827) internal successors, (24735), 5229 states have internal predecessors, (24735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 24735 transitions. [2022-03-15 15:32:09,563 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 24735 transitions. Word has length 29 [2022-03-15 15:32:09,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:09,563 INFO L470 AbstractCegarLoop]: Abstraction has 5230 states and 24735 transitions. [2022-03-15 15:32:09,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:09,563 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 24735 transitions. [2022-03-15 15:32:09,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:09,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:09,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:09,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable666 [2022-03-15 15:32:09,573 INFO L402 AbstractCegarLoop]: === Iteration 668 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:09,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:09,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1993684995, now seen corresponding path program 663 times [2022-03-15 15:32:09,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:09,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629383414] [2022-03-15 15:32:09,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:09,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:09,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:09,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:09,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629383414] [2022-03-15 15:32:09,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629383414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:09,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:09,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:09,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730371489] [2022-03-15 15:32:09,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:09,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:09,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:09,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:09,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:09,727 INFO L87 Difference]: Start difference. First operand 5230 states and 24735 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:09,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:09,931 INFO L93 Difference]: Finished difference Result 12413 states and 55494 transitions. [2022-03-15 15:32:09,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:09,931 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:09,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:09,968 INFO L225 Difference]: With dead ends: 12413 [2022-03-15 15:32:09,968 INFO L226 Difference]: Without dead ends: 11871 [2022-03-15 15:32:09,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:09,968 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 177 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:09,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 196 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:09,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11871 states. [2022-03-15 15:32:10,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11871 to 5338. [2022-03-15 15:32:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5337 states have (on average 4.709574667416152) internal successors, (25135), 5337 states have internal predecessors, (25135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:10,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 25135 transitions. [2022-03-15 15:32:10,120 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 25135 transitions. Word has length 29 [2022-03-15 15:32:10,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:10,120 INFO L470 AbstractCegarLoop]: Abstraction has 5338 states and 25135 transitions. [2022-03-15 15:32:10,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 25135 transitions. [2022-03-15 15:32:10,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:10,130 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:10,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:10,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable667 [2022-03-15 15:32:10,130 INFO L402 AbstractCegarLoop]: === Iteration 669 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:10,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:10,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1113749535, now seen corresponding path program 664 times [2022-03-15 15:32:10,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:10,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545596673] [2022-03-15 15:32:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:10,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:10,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:10,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545596673] [2022-03-15 15:32:10,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545596673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:10,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:10,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:10,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63552594] [2022-03-15 15:32:10,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:10,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:10,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:10,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:10,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:10,266 INFO L87 Difference]: Start difference. First operand 5338 states and 25135 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:10,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:10,459 INFO L93 Difference]: Finished difference Result 12342 states and 55111 transitions. [2022-03-15 15:32:10,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:10,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:10,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:10,493 INFO L225 Difference]: With dead ends: 12342 [2022-03-15 15:32:10,494 INFO L226 Difference]: Without dead ends: 11763 [2022-03-15 15:32:10,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:10,494 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 163 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:10,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 210 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:10,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11763 states. [2022-03-15 15:32:10,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11763 to 5230. [2022-03-15 15:32:10,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5230 states, 5229 states have (on average 4.720022948938611) internal successors, (24681), 5229 states have internal predecessors, (24681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:10,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 24681 transitions. [2022-03-15 15:32:10,679 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 24681 transitions. Word has length 29 [2022-03-15 15:32:10,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:10,679 INFO L470 AbstractCegarLoop]: Abstraction has 5230 states and 24681 transitions. [2022-03-15 15:32:10,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:10,679 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 24681 transitions. [2022-03-15 15:32:10,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:10,689 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:10,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:10,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable668 [2022-03-15 15:32:10,689 INFO L402 AbstractCegarLoop]: === Iteration 670 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:10,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:10,690 INFO L85 PathProgramCache]: Analyzing trace with hash -234102753, now seen corresponding path program 665 times [2022-03-15 15:32:10,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:10,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53428088] [2022-03-15 15:32:10,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:10,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:10,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:10,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:10,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53428088] [2022-03-15 15:32:10,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53428088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:10,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:10,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:10,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800348445] [2022-03-15 15:32:10,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:10,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:10,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:10,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:10,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:10,808 INFO L87 Difference]: Start difference. First operand 5230 states and 24681 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:10,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:10,996 INFO L93 Difference]: Finished difference Result 12247 states and 54770 transitions. [2022-03-15 15:32:10,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:10,997 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:10,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:11,035 INFO L225 Difference]: With dead ends: 12247 [2022-03-15 15:32:11,035 INFO L226 Difference]: Without dead ends: 11772 [2022-03-15 15:32:11,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:11,036 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:11,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 234 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:11,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11772 states. [2022-03-15 15:32:11,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11772 to 5306. [2022-03-15 15:32:11,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5306 states, 5305 states have (on average 4.706691800188501) internal successors, (24969), 5305 states have internal predecessors, (24969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 24969 transitions. [2022-03-15 15:32:11,202 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 24969 transitions. Word has length 29 [2022-03-15 15:32:11,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:11,202 INFO L470 AbstractCegarLoop]: Abstraction has 5306 states and 24969 transitions. [2022-03-15 15:32:11,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:11,203 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 24969 transitions. [2022-03-15 15:32:11,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:11,213 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:11,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:11,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable669 [2022-03-15 15:32:11,213 INFO L402 AbstractCegarLoop]: === Iteration 671 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:11,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:11,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1080899715, now seen corresponding path program 666 times [2022-03-15 15:32:11,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:11,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643207698] [2022-03-15 15:32:11,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:11,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:11,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:11,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:11,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643207698] [2022-03-15 15:32:11,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643207698] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:11,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:11,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:11,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888252229] [2022-03-15 15:32:11,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:11,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:11,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:11,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:11,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:11,323 INFO L87 Difference]: Start difference. First operand 5306 states and 24969 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:11,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:11,495 INFO L93 Difference]: Finished difference Result 12243 states and 54682 transitions. [2022-03-15 15:32:11,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:11,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:11,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:11,533 INFO L225 Difference]: With dead ends: 12243 [2022-03-15 15:32:11,533 INFO L226 Difference]: Without dead ends: 11642 [2022-03-15 15:32:11,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:11,533 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 159 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:11,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 197 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:11,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11642 states. [2022-03-15 15:32:11,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11642 to 5176. [2022-03-15 15:32:11,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 4.730628019323672) internal successors, (24481), 5175 states have internal predecessors, (24481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:11,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 24481 transitions. [2022-03-15 15:32:11,695 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 24481 transitions. Word has length 29 [2022-03-15 15:32:11,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:11,695 INFO L470 AbstractCegarLoop]: Abstraction has 5176 states and 24481 transitions. [2022-03-15 15:32:11,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:11,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 24481 transitions. [2022-03-15 15:32:11,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:11,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:11,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:11,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable670 [2022-03-15 15:32:11,706 INFO L402 AbstractCegarLoop]: === Iteration 672 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:11,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:11,706 INFO L85 PathProgramCache]: Analyzing trace with hash 108897281, now seen corresponding path program 667 times [2022-03-15 15:32:11,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:11,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842794415] [2022-03-15 15:32:11,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:11,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:11,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:11,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:11,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842794415] [2022-03-15 15:32:11,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842794415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:11,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:11,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:11,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049521443] [2022-03-15 15:32:11,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:11,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:11,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:11,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:11,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:11,857 INFO L87 Difference]: Start difference. First operand 5176 states and 24481 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:12,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:12,105 INFO L93 Difference]: Finished difference Result 12112 states and 54254 transitions. [2022-03-15 15:32:12,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:12,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:12,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:12,141 INFO L225 Difference]: With dead ends: 12112 [2022-03-15 15:32:12,141 INFO L226 Difference]: Without dead ends: 11635 [2022-03-15 15:32:12,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:12,142 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:12,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 223 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:12,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11635 states. [2022-03-15 15:32:12,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11635 to 5292. [2022-03-15 15:32:12,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 5291 states have (on average 4.72027972027972) internal successors, (24975), 5291 states have internal predecessors, (24975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:12,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 24975 transitions. [2022-03-15 15:32:12,301 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 24975 transitions. Word has length 29 [2022-03-15 15:32:12,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:12,301 INFO L470 AbstractCegarLoop]: Abstraction has 5292 states and 24975 transitions. [2022-03-15 15:32:12,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:12,301 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 24975 transitions. [2022-03-15 15:32:12,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:12,311 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:12,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:12,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable671 [2022-03-15 15:32:12,311 INFO L402 AbstractCegarLoop]: === Iteration 673 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:12,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:12,312 INFO L85 PathProgramCache]: Analyzing trace with hash -2007182369, now seen corresponding path program 668 times [2022-03-15 15:32:12,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:12,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269830414] [2022-03-15 15:32:12,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:12,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:12,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:12,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:12,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269830414] [2022-03-15 15:32:12,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269830414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:12,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:12,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:12,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74664349] [2022-03-15 15:32:12,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:12,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:12,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:12,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:12,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:12,460 INFO L87 Difference]: Start difference. First operand 5292 states and 24975 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:12,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:12,703 INFO L93 Difference]: Finished difference Result 12110 states and 54171 transitions. [2022-03-15 15:32:12,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:12,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:12,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:12,770 INFO L225 Difference]: With dead ends: 12110 [2022-03-15 15:32:12,771 INFO L226 Difference]: Without dead ends: 11557 [2022-03-15 15:32:12,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:12,771 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 153 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:12,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 240 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11557 states. [2022-03-15 15:32:12,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11557 to 5214. [2022-03-15 15:32:12,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 5213 states have (on average 4.727412238634184) internal successors, (24644), 5213 states have internal predecessors, (24644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:12,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 24644 transitions. [2022-03-15 15:32:12,962 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 24644 transitions. Word has length 29 [2022-03-15 15:32:12,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:12,962 INFO L470 AbstractCegarLoop]: Abstraction has 5214 states and 24644 transitions. [2022-03-15 15:32:12,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:12,962 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 24644 transitions. [2022-03-15 15:32:12,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:12,973 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:12,973 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:12,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable672 [2022-03-15 15:32:12,973 INFO L402 AbstractCegarLoop]: === Iteration 674 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:12,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:12,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1914164257, now seen corresponding path program 669 times [2022-03-15 15:32:12,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:12,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063295909] [2022-03-15 15:32:12,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:12,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:13,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:13,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:13,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063295909] [2022-03-15 15:32:13,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063295909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:13,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:13,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:13,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442398379] [2022-03-15 15:32:13,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:13,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:13,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:13,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:13,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:13,090 INFO L87 Difference]: Start difference. First operand 5214 states and 24644 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:13,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:13,291 INFO L93 Difference]: Finished difference Result 12106 states and 54197 transitions. [2022-03-15 15:32:13,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:13,292 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:13,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:13,333 INFO L225 Difference]: With dead ends: 12106 [2022-03-15 15:32:13,333 INFO L226 Difference]: Without dead ends: 11629 [2022-03-15 15:32:13,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:13,333 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 177 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:13,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 196 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:13,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11629 states. [2022-03-15 15:32:13,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11629 to 5290. [2022-03-15 15:32:13,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5289 states have (on average 4.713934581206277) internal successors, (24932), 5289 states have internal predecessors, (24932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 24932 transitions. [2022-03-15 15:32:13,510 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 24932 transitions. Word has length 29 [2022-03-15 15:32:13,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:13,511 INFO L470 AbstractCegarLoop]: Abstraction has 5290 states and 24932 transitions. [2022-03-15 15:32:13,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:13,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 24932 transitions. [2022-03-15 15:32:13,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:13,522 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:13,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:13,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable673 [2022-03-15 15:32:13,523 INFO L402 AbstractCegarLoop]: === Iteration 675 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:13,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:13,523 INFO L85 PathProgramCache]: Analyzing trace with hash 315493471, now seen corresponding path program 670 times [2022-03-15 15:32:13,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:13,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959163835] [2022-03-15 15:32:13,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:13,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:13,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:13,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:13,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959163835] [2022-03-15 15:32:13,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959163835] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:13,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:13,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:13,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945450788] [2022-03-15 15:32:13,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:13,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:13,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:13,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:13,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:13,667 INFO L87 Difference]: Start difference. First operand 5290 states and 24932 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:13,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:13,861 INFO L93 Difference]: Finished difference Result 12100 states and 54104 transitions. [2022-03-15 15:32:13,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:13,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:13,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:13,899 INFO L225 Difference]: With dead ends: 12100 [2022-03-15 15:32:13,900 INFO L226 Difference]: Without dead ends: 11553 [2022-03-15 15:32:13,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:13,900 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 183 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:13,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 194 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:13,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11553 states. [2022-03-15 15:32:14,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11553 to 5214. [2022-03-15 15:32:14,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 5213 states have (on average 4.720122769998082) internal successors, (24606), 5213 states have internal predecessors, (24606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:14,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 24606 transitions. [2022-03-15 15:32:14,076 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 24606 transitions. Word has length 29 [2022-03-15 15:32:14,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:14,076 INFO L470 AbstractCegarLoop]: Abstraction has 5214 states and 24606 transitions. [2022-03-15 15:32:14,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:14,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 24606 transitions. [2022-03-15 15:32:14,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:14,087 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:14,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:14,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable674 [2022-03-15 15:32:14,087 INFO L402 AbstractCegarLoop]: === Iteration 676 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:14,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:14,087 INFO L85 PathProgramCache]: Analyzing trace with hash 244821181, now seen corresponding path program 671 times [2022-03-15 15:32:14,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:14,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999559658] [2022-03-15 15:32:14,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:14,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:14,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:14,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:14,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999559658] [2022-03-15 15:32:14,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999559658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:14,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:14,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:14,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403643413] [2022-03-15 15:32:14,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:14,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:14,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:14,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:14,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:14,203 INFO L87 Difference]: Start difference. First operand 5214 states and 24606 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:14,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:14,409 INFO L93 Difference]: Finished difference Result 12102 states and 54149 transitions. [2022-03-15 15:32:14,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:14,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:14,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:14,443 INFO L225 Difference]: With dead ends: 12102 [2022-03-15 15:32:14,444 INFO L226 Difference]: Without dead ends: 11627 [2022-03-15 15:32:14,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:14,444 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 159 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:14,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 203 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:14,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11627 states. [2022-03-15 15:32:14,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11627 to 5290. [2022-03-15 15:32:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5289 states have (on average 4.706749858196257) internal successors, (24894), 5289 states have internal predecessors, (24894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:14,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 24894 transitions. [2022-03-15 15:32:14,591 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 24894 transitions. Word has length 29 [2022-03-15 15:32:14,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:14,591 INFO L470 AbstractCegarLoop]: Abstraction has 5290 states and 24894 transitions. [2022-03-15 15:32:14,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:14,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 24894 transitions. [2022-03-15 15:32:14,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:14,601 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:14,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:14,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable675 [2022-03-15 15:32:14,601 INFO L402 AbstractCegarLoop]: === Iteration 677 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:14,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:14,602 INFO L85 PathProgramCache]: Analyzing trace with hash -236080865, now seen corresponding path program 672 times [2022-03-15 15:32:14,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:14,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285713113] [2022-03-15 15:32:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:14,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:14,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:14,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:14,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285713113] [2022-03-15 15:32:14,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285713113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:14,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:14,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:14,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222602789] [2022-03-15 15:32:14,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:14,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:14,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:14,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:14,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:14,761 INFO L87 Difference]: Start difference. First operand 5290 states and 24894 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:14,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:14,994 INFO L93 Difference]: Finished difference Result 12098 states and 54061 transitions. [2022-03-15 15:32:14,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:14,994 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:14,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:15,035 INFO L225 Difference]: With dead ends: 12098 [2022-03-15 15:32:15,035 INFO L226 Difference]: Without dead ends: 11462 [2022-03-15 15:32:15,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:15,035 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 161 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:15,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 221 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11462 states. [2022-03-15 15:32:15,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11462 to 5125. [2022-03-15 15:32:15,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.747462919594067) internal successors, (24326), 5124 states have internal predecessors, (24326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:15,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24326 transitions. [2022-03-15 15:32:15,197 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24326 transitions. Word has length 29 [2022-03-15 15:32:15,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:15,197 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24326 transitions. [2022-03-15 15:32:15,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:15,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24326 transitions. [2022-03-15 15:32:15,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:15,207 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:15,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:15,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable676 [2022-03-15 15:32:15,208 INFO L402 AbstractCegarLoop]: === Iteration 678 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:15,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:15,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1250325377, now seen corresponding path program 673 times [2022-03-15 15:32:15,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:15,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169315609] [2022-03-15 15:32:15,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:15,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:15,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:15,328 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:15,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169315609] [2022-03-15 15:32:15,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169315609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:15,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:15,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:15,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260995079] [2022-03-15 15:32:15,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:15,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:15,329 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:15,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:15,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:15,329 INFO L87 Difference]: Start difference. First operand 5125 states and 24326 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:15,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:15,504 INFO L93 Difference]: Finished difference Result 11898 states and 53248 transitions. [2022-03-15 15:32:15,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:15,504 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:15,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:15,545 INFO L225 Difference]: With dead ends: 11898 [2022-03-15 15:32:15,545 INFO L226 Difference]: Without dead ends: 11356 [2022-03-15 15:32:15,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:15,545 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 177 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:15,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 212 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:15,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11356 states. [2022-03-15 15:32:15,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11356 to 5265. [2022-03-15 15:32:15,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.7359422492401215) internal successors, (24930), 5264 states have internal predecessors, (24930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:15,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24930 transitions. [2022-03-15 15:32:15,730 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24930 transitions. Word has length 29 [2022-03-15 15:32:15,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:15,730 INFO L470 AbstractCegarLoop]: Abstraction has 5265 states and 24930 transitions. [2022-03-15 15:32:15,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:15,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24930 transitions. [2022-03-15 15:32:15,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:15,743 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:15,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:15,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable677 [2022-03-15 15:32:15,743 INFO L402 AbstractCegarLoop]: === Iteration 679 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:15,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:15,743 INFO L85 PathProgramCache]: Analyzing trace with hash -437920895, now seen corresponding path program 674 times [2022-03-15 15:32:15,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:15,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199946081] [2022-03-15 15:32:15,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:15,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:15,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:15,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199946081] [2022-03-15 15:32:15,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199946081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:15,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:15,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:15,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203401256] [2022-03-15 15:32:15,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:15,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:15,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:15,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:15,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:15,873 INFO L87 Difference]: Start difference. First operand 5265 states and 24930 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:16,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:16,058 INFO L93 Difference]: Finished difference Result 11771 states and 52641 transitions. [2022-03-15 15:32:16,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:16,059 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:16,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:16,096 INFO L225 Difference]: With dead ends: 11771 [2022-03-15 15:32:16,096 INFO L226 Difference]: Without dead ends: 11276 [2022-03-15 15:32:16,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:16,097 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 153 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:16,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 240 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:16,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11276 states. [2022-03-15 15:32:16,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11276 to 5185. [2022-03-15 15:32:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.745756172839506) internal successors, (24602), 5184 states have internal predecessors, (24602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:16,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24602 transitions. [2022-03-15 15:32:16,259 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24602 transitions. Word has length 29 [2022-03-15 15:32:16,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:16,259 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24602 transitions. [2022-03-15 15:32:16,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:16,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24602 transitions. [2022-03-15 15:32:16,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:16,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:16,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:16,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable678 [2022-03-15 15:32:16,270 INFO L402 AbstractCegarLoop]: === Iteration 680 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:16,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:16,271 INFO L85 PathProgramCache]: Analyzing trace with hash -772736161, now seen corresponding path program 675 times [2022-03-15 15:32:16,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:16,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091728933] [2022-03-15 15:32:16,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:16,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:16,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:16,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091728933] [2022-03-15 15:32:16,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091728933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:16,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:16,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:16,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867646563] [2022-03-15 15:32:16,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:16,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:16,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:16,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:16,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:16,402 INFO L87 Difference]: Start difference. First operand 5185 states and 24602 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:16,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:16,573 INFO L93 Difference]: Finished difference Result 11988 states and 53619 transitions. [2022-03-15 15:32:16,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:16,573 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:16,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:16,615 INFO L225 Difference]: With dead ends: 11988 [2022-03-15 15:32:16,615 INFO L226 Difference]: Without dead ends: 11446 [2022-03-15 15:32:16,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:16,615 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 187 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:16,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 202 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:16,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11446 states. [2022-03-15 15:32:16,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11446 to 5295. [2022-03-15 15:32:16,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 4.723649414431431) internal successors, (25007), 5294 states have internal predecessors, (25007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:16,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 25007 transitions. [2022-03-15 15:32:16,768 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 25007 transitions. Word has length 29 [2022-03-15 15:32:16,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:16,768 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 25007 transitions. [2022-03-15 15:32:16,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:16,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 25007 transitions. [2022-03-15 15:32:16,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:16,778 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:16,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:16,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable679 [2022-03-15 15:32:16,779 INFO L402 AbstractCegarLoop]: === Iteration 681 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash 596884353, now seen corresponding path program 676 times [2022-03-15 15:32:16,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:16,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485082504] [2022-03-15 15:32:16,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:16,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:16,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:16,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485082504] [2022-03-15 15:32:16,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485082504] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:16,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:16,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:16,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207392791] [2022-03-15 15:32:16,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:16,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:16,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:16,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:16,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:16,900 INFO L87 Difference]: Start difference. First operand 5295 states and 25007 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:17,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:17,072 INFO L93 Difference]: Finished difference Result 11921 states and 53246 transitions. [2022-03-15 15:32:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:17,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:17,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:17,108 INFO L225 Difference]: With dead ends: 11921 [2022-03-15 15:32:17,108 INFO L226 Difference]: Without dead ends: 11336 [2022-03-15 15:32:17,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:17,109 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 165 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:17,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 212 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:17,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11336 states. [2022-03-15 15:32:17,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11336 to 5185. [2022-03-15 15:32:17,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.73804012345679) internal successors, (24562), 5184 states have internal predecessors, (24562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:17,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24562 transitions. [2022-03-15 15:32:17,314 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24562 transitions. Word has length 29 [2022-03-15 15:32:17,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:17,314 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24562 transitions. [2022-03-15 15:32:17,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:17,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24562 transitions. [2022-03-15 15:32:17,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:17,325 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:17,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:17,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable680 [2022-03-15 15:32:17,325 INFO L402 AbstractCegarLoop]: === Iteration 682 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:17,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:17,326 INFO L85 PathProgramCache]: Analyzing trace with hash -47959167, now seen corresponding path program 677 times [2022-03-15 15:32:17,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:17,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338025832] [2022-03-15 15:32:17,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:17,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:17,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:17,434 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:17,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338025832] [2022-03-15 15:32:17,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338025832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:17,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:17,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:17,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8439255] [2022-03-15 15:32:17,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:17,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:17,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:17,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:17,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:17,435 INFO L87 Difference]: Start difference. First operand 5185 states and 24562 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:17,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:17,610 INFO L93 Difference]: Finished difference Result 11672 states and 52234 transitions. [2022-03-15 15:32:17,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:17,610 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:17,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:17,646 INFO L225 Difference]: With dead ends: 11672 [2022-03-15 15:32:17,647 INFO L226 Difference]: Without dead ends: 11257 [2022-03-15 15:32:17,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:17,647 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:17,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 231 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:17,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11257 states. [2022-03-15 15:32:17,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11257 to 5233. [2022-03-15 15:32:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.728211009174312) internal successors, (24738), 5232 states have internal predecessors, (24738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24738 transitions. [2022-03-15 15:32:17,830 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24738 transitions. Word has length 29 [2022-03-15 15:32:17,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:17,830 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24738 transitions. [2022-03-15 15:32:17,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:17,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24738 transitions. [2022-03-15 15:32:17,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:17,841 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:17,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:17,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable681 [2022-03-15 15:32:17,841 INFO L402 AbstractCegarLoop]: === Iteration 683 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:17,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:17,842 INFO L85 PathProgramCache]: Analyzing trace with hash -894756129, now seen corresponding path program 678 times [2022-03-15 15:32:17,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:17,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621294955] [2022-03-15 15:32:17,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:17,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:17,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:17,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:17,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621294955] [2022-03-15 15:32:17,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621294955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:17,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:17,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:17,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826452344] [2022-03-15 15:32:17,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:17,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:17,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:17,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:17,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:17,947 INFO L87 Difference]: Start difference. First operand 5233 states and 24738 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:18,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:18,118 INFO L93 Difference]: Finished difference Result 11732 states and 52450 transitions. [2022-03-15 15:32:18,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:18,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:18,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:18,157 INFO L225 Difference]: With dead ends: 11732 [2022-03-15 15:32:18,157 INFO L226 Difference]: Without dead ends: 11169 [2022-03-15 15:32:18,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:18,158 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:18,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 209 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:18,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11169 states. [2022-03-15 15:32:18,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11169 to 5145. [2022-03-15 15:32:18,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.746889580093312) internal successors, (24418), 5144 states have internal predecessors, (24418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:18,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24418 transitions. [2022-03-15 15:32:18,339 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24418 transitions. Word has length 29 [2022-03-15 15:32:18,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:18,339 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24418 transitions. [2022-03-15 15:32:18,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:18,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24418 transitions. [2022-03-15 15:32:18,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:18,350 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:18,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:18,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable682 [2022-03-15 15:32:18,350 INFO L402 AbstractCegarLoop]: === Iteration 684 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:18,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:18,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1586594849, now seen corresponding path program 679 times [2022-03-15 15:32:18,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:18,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721493088] [2022-03-15 15:32:18,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:18,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:18,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:18,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:18,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721493088] [2022-03-15 15:32:18,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721493088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:18,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:18,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:18,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439781554] [2022-03-15 15:32:18,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:18,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:18,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:18,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:18,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:18,498 INFO L87 Difference]: Start difference. First operand 5145 states and 24418 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:18,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:18,695 INFO L93 Difference]: Finished difference Result 11892 states and 53209 transitions. [2022-03-15 15:32:18,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:18,695 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:18,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:18,729 INFO L225 Difference]: With dead ends: 11892 [2022-03-15 15:32:18,729 INFO L226 Difference]: Without dead ends: 11350 [2022-03-15 15:32:18,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:18,730 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 174 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:18,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 206 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:18,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11350 states. [2022-03-15 15:32:18,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11350 to 5265. [2022-03-15 15:32:18,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.732142857142857) internal successors, (24910), 5264 states have internal predecessors, (24910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:18,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24910 transitions. [2022-03-15 15:32:18,874 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24910 transitions. Word has length 29 [2022-03-15 15:32:18,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:18,874 INFO L470 AbstractCegarLoop]: Abstraction has 5265 states and 24910 transitions. [2022-03-15 15:32:18,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:18,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24910 transitions. [2022-03-15 15:32:18,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:18,884 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:18,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:18,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable683 [2022-03-15 15:32:18,885 INFO L402 AbstractCegarLoop]: === Iteration 685 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:18,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:18,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1020126175, now seen corresponding path program 680 times [2022-03-15 15:32:18,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:18,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144085262] [2022-03-15 15:32:18,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:18,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:19,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:19,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:19,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144085262] [2022-03-15 15:32:19,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144085262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:19,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:19,060 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:19,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691754193] [2022-03-15 15:32:19,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:19,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:19,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:19,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:19,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:19,060 INFO L87 Difference]: Start difference. First operand 5265 states and 24910 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:19,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:19,265 INFO L93 Difference]: Finished difference Result 11765 states and 52602 transitions. [2022-03-15 15:32:19,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:19,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:19,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:19,299 INFO L225 Difference]: With dead ends: 11765 [2022-03-15 15:32:19,299 INFO L226 Difference]: Without dead ends: 11270 [2022-03-15 15:32:19,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:19,299 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 170 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:19,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 218 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:19,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11270 states. [2022-03-15 15:32:19,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11270 to 5185. [2022-03-15 15:32:19,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.741898148148148) internal successors, (24582), 5184 states have internal predecessors, (24582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:19,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24582 transitions. [2022-03-15 15:32:19,438 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24582 transitions. Word has length 29 [2022-03-15 15:32:19,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:19,438 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24582 transitions. [2022-03-15 15:32:19,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:19,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24582 transitions. [2022-03-15 15:32:19,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:19,448 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:19,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:19,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable684 [2022-03-15 15:32:19,448 INFO L402 AbstractCegarLoop]: === Iteration 686 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:19,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:19,448 INFO L85 PathProgramCache]: Analyzing trace with hash -2064247841, now seen corresponding path program 681 times [2022-03-15 15:32:19,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:19,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314737829] [2022-03-15 15:32:19,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:19,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:19,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:19,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:19,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314737829] [2022-03-15 15:32:19,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314737829] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:19,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:19,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:19,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483431414] [2022-03-15 15:32:19,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:19,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:19,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:19,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:19,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:19,602 INFO L87 Difference]: Start difference. First operand 5185 states and 24582 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:19,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:19,826 INFO L93 Difference]: Finished difference Result 11976 states and 53561 transitions. [2022-03-15 15:32:19,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:19,826 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:19,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:19,864 INFO L225 Difference]: With dead ends: 11976 [2022-03-15 15:32:19,864 INFO L226 Difference]: Without dead ends: 11434 [2022-03-15 15:32:19,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:19,864 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 146 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:19,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 247 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:19,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11434 states. [2022-03-15 15:32:20,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11434 to 5293. [2022-03-15 15:32:20,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 4.720710506424792) internal successors, (24982), 5292 states have internal predecessors, (24982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:20,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 24982 transitions. [2022-03-15 15:32:20,039 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 24982 transitions. Word has length 29 [2022-03-15 15:32:20,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:20,039 INFO L470 AbstractCegarLoop]: Abstraction has 5293 states and 24982 transitions. [2022-03-15 15:32:20,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:20,039 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 24982 transitions. [2022-03-15 15:32:20,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:20,049 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:20,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:20,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable685 [2022-03-15 15:32:20,050 INFO L402 AbstractCegarLoop]: === Iteration 687 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:20,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:20,050 INFO L85 PathProgramCache]: Analyzing trace with hash 350129025, now seen corresponding path program 682 times [2022-03-15 15:32:20,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:20,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566369715] [2022-03-15 15:32:20,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:20,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:20,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:20,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:20,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:20,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566369715] [2022-03-15 15:32:20,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566369715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:20,240 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:20,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:20,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943313165] [2022-03-15 15:32:20,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:20,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:20,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:20,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:20,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:20,241 INFO L87 Difference]: Start difference. First operand 5293 states and 24982 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:20,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:20,467 INFO L93 Difference]: Finished difference Result 11905 states and 53178 transitions. [2022-03-15 15:32:20,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:20,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:20,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:20,505 INFO L225 Difference]: With dead ends: 11905 [2022-03-15 15:32:20,505 INFO L226 Difference]: Without dead ends: 11326 [2022-03-15 15:32:20,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:20,505 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:20,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 199 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:20,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11326 states. [2022-03-15 15:32:20,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11326 to 5185. [2022-03-15 15:32:20,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.734182098765432) internal successors, (24542), 5184 states have internal predecessors, (24542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:20,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24542 transitions. [2022-03-15 15:32:20,679 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24542 transitions. Word has length 29 [2022-03-15 15:32:20,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:20,679 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24542 transitions. [2022-03-15 15:32:20,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:20,679 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24542 transitions. [2022-03-15 15:32:20,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:20,690 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:20,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:20,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable686 [2022-03-15 15:32:20,690 INFO L402 AbstractCegarLoop]: === Iteration 688 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:20,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:20,690 INFO L85 PathProgramCache]: Analyzing trace with hash -2032528511, now seen corresponding path program 683 times [2022-03-15 15:32:20,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:20,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148578793] [2022-03-15 15:32:20,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:20,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:20,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:20,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:20,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148578793] [2022-03-15 15:32:20,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148578793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:20,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:20,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:20,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104692869] [2022-03-15 15:32:20,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:20,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:20,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:20,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:20,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:20,814 INFO L87 Difference]: Start difference. First operand 5185 states and 24542 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:20,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:20,991 INFO L93 Difference]: Finished difference Result 11662 states and 52183 transitions. [2022-03-15 15:32:20,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:20,991 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:20,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:21,027 INFO L225 Difference]: With dead ends: 11662 [2022-03-15 15:32:21,027 INFO L226 Difference]: Without dead ends: 11247 [2022-03-15 15:32:21,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:21,027 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 157 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:21,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 232 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:21,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2022-03-15 15:32:21,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 5233. [2022-03-15 15:32:21,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.724388379204893) internal successors, (24718), 5232 states have internal predecessors, (24718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:21,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24718 transitions. [2022-03-15 15:32:21,191 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24718 transitions. Word has length 29 [2022-03-15 15:32:21,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:21,191 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24718 transitions. [2022-03-15 15:32:21,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:21,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24718 transitions. [2022-03-15 15:32:21,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:21,202 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:21,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:21,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable687 [2022-03-15 15:32:21,202 INFO L402 AbstractCegarLoop]: === Iteration 689 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:21,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:21,202 INFO L85 PathProgramCache]: Analyzing trace with hash 146359135, now seen corresponding path program 684 times [2022-03-15 15:32:21,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:21,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407117309] [2022-03-15 15:32:21,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:21,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:21,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:21,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:21,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407117309] [2022-03-15 15:32:21,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407117309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:21,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:21,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:21,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328368742] [2022-03-15 15:32:21,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:21,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:21,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:21,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:21,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:21,321 INFO L87 Difference]: Start difference. First operand 5233 states and 24718 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:21,563 INFO L93 Difference]: Finished difference Result 11718 states and 52387 transitions. [2022-03-15 15:32:21,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:21,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:21,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:21,606 INFO L225 Difference]: With dead ends: 11718 [2022-03-15 15:32:21,606 INFO L226 Difference]: Without dead ends: 11159 [2022-03-15 15:32:21,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:21,606 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:21,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 241 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:21,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11159 states. [2022-03-15 15:32:21,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11159 to 5145. [2022-03-15 15:32:21,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.743001555209953) internal successors, (24398), 5144 states have internal predecessors, (24398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24398 transitions. [2022-03-15 15:32:21,791 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24398 transitions. Word has length 29 [2022-03-15 15:32:21,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:21,791 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24398 transitions. [2022-03-15 15:32:21,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:21,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24398 transitions. [2022-03-15 15:32:21,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:21,802 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:21,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:21,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable688 [2022-03-15 15:32:21,802 INFO L402 AbstractCegarLoop]: === Iteration 690 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:21,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:21,802 INFO L85 PathProgramCache]: Analyzing trace with hash -287765443, now seen corresponding path program 685 times [2022-03-15 15:32:21,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:21,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819747775] [2022-03-15 15:32:21,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:21,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:21,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:21,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819747775] [2022-03-15 15:32:21,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819747775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:21,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:21,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:21,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267505318] [2022-03-15 15:32:21,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:21,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:21,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:21,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:21,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:21,985 INFO L87 Difference]: Start difference. First operand 5145 states and 24398 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:22,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:22,216 INFO L93 Difference]: Finished difference Result 12114 states and 54228 transitions. [2022-03-15 15:32:22,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:22,216 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:22,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:22,254 INFO L225 Difference]: With dead ends: 12114 [2022-03-15 15:32:22,254 INFO L226 Difference]: Without dead ends: 11572 [2022-03-15 15:32:22,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:22,254 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 156 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:22,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 247 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:22,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11572 states. [2022-03-15 15:32:22,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11572 to 5309. [2022-03-15 15:32:22,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5309 states, 5308 states have (on average 4.72569706103994) internal successors, (25084), 5308 states have internal predecessors, (25084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:22,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 25084 transitions. [2022-03-15 15:32:22,458 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 25084 transitions. Word has length 29 [2022-03-15 15:32:22,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:22,458 INFO L470 AbstractCegarLoop]: Abstraction has 5309 states and 25084 transitions. [2022-03-15 15:32:22,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 25084 transitions. [2022-03-15 15:32:22,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:22,469 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:22,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:22,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable689 [2022-03-15 15:32:22,469 INFO L402 AbstractCegarLoop]: === Iteration 691 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:22,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:22,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1081855071, now seen corresponding path program 686 times [2022-03-15 15:32:22,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:22,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799162972] [2022-03-15 15:32:22,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:22,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:22,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:22,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:22,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799162972] [2022-03-15 15:32:22,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799162972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:22,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:22,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:22,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954518772] [2022-03-15 15:32:22,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:22,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:22,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:22,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:22,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:22,663 INFO L87 Difference]: Start difference. First operand 5309 states and 25084 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:22,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:22,891 INFO L93 Difference]: Finished difference Result 12047 states and 53855 transitions. [2022-03-15 15:32:22,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:22,891 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:22,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:22,931 INFO L225 Difference]: With dead ends: 12047 [2022-03-15 15:32:22,932 INFO L226 Difference]: Without dead ends: 11462 [2022-03-15 15:32:22,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:22,932 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 167 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:22,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 203 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:22,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11462 states. [2022-03-15 15:32:23,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11462 to 5199. [2022-03-15 15:32:23,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.737398999615237) internal successors, (24625), 5198 states have internal predecessors, (24625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:23,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24625 transitions. [2022-03-15 15:32:23,095 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24625 transitions. Word has length 29 [2022-03-15 15:32:23,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:23,095 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24625 transitions. [2022-03-15 15:32:23,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:23,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24625 transitions. [2022-03-15 15:32:23,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:23,107 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:23,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:23,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable690 [2022-03-15 15:32:23,107 INFO L402 AbstractCegarLoop]: === Iteration 692 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:23,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:23,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1421836319, now seen corresponding path program 687 times [2022-03-15 15:32:23,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:23,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352092292] [2022-03-15 15:32:23,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:23,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:23,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:23,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352092292] [2022-03-15 15:32:23,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352092292] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:23,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:23,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:23,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459738502] [2022-03-15 15:32:23,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:23,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:23,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:23,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:23,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:23,312 INFO L87 Difference]: Start difference. First operand 5199 states and 24625 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:23,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:23,534 INFO L93 Difference]: Finished difference Result 12108 states and 54155 transitions. [2022-03-15 15:32:23,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:23,535 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:23,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:23,579 INFO L225 Difference]: With dead ends: 12108 [2022-03-15 15:32:23,579 INFO L226 Difference]: Without dead ends: 11566 [2022-03-15 15:32:23,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:23,580 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 177 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:23,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 201 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:23,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2022-03-15 15:32:23,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 5307. [2022-03-15 15:32:23,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 4.716358839050132) internal successors, (25025), 5306 states have internal predecessors, (25025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 25025 transitions. [2022-03-15 15:32:23,736 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 25025 transitions. Word has length 29 [2022-03-15 15:32:23,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:23,736 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 25025 transitions. [2022-03-15 15:32:23,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:23,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 25025 transitions. [2022-03-15 15:32:23,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:23,746 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:23,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:23,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable691 [2022-03-15 15:32:23,747 INFO L402 AbstractCegarLoop]: === Iteration 693 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:23,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:23,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1808176095, now seen corresponding path program 688 times [2022-03-15 15:32:23,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:23,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109764494] [2022-03-15 15:32:23,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:23,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:23,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:23,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109764494] [2022-03-15 15:32:23,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109764494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:23,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:23,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:23,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509239515] [2022-03-15 15:32:23,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:23,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:23,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:23,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:23,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:23,970 INFO L87 Difference]: Start difference. First operand 5307 states and 25025 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:24,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:24,199 INFO L93 Difference]: Finished difference Result 12037 states and 53772 transitions. [2022-03-15 15:32:24,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:24,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:24,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:24,236 INFO L225 Difference]: With dead ends: 12037 [2022-03-15 15:32:24,236 INFO L226 Difference]: Without dead ends: 11458 [2022-03-15 15:32:24,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:24,236 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 157 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:24,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 205 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:24,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11458 states. [2022-03-15 15:32:24,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11458 to 5199. [2022-03-15 15:32:24,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5199 states, 5198 states have (on average 4.727010388611005) internal successors, (24571), 5198 states have internal predecessors, (24571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:24,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 5199 states and 24571 transitions. [2022-03-15 15:32:24,475 INFO L78 Accepts]: Start accepts. Automaton has 5199 states and 24571 transitions. Word has length 29 [2022-03-15 15:32:24,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:24,475 INFO L470 AbstractCegarLoop]: Abstraction has 5199 states and 24571 transitions. [2022-03-15 15:32:24,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:24,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5199 states and 24571 transitions. [2022-03-15 15:32:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:24,485 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:24,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:24,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable692 [2022-03-15 15:32:24,486 INFO L402 AbstractCegarLoop]: === Iteration 694 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:24,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:24,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2015683457, now seen corresponding path program 689 times [2022-03-15 15:32:24,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:24,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669578497] [2022-03-15 15:32:24,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:24,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:24,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:24,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:24,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669578497] [2022-03-15 15:32:24,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669578497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:24,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:24,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:24,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034302383] [2022-03-15 15:32:24,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:24,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:24,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:24,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:24,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:24,651 INFO L87 Difference]: Start difference. First operand 5199 states and 24571 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:24,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:24,894 INFO L93 Difference]: Finished difference Result 11942 states and 53431 transitions. [2022-03-15 15:32:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:24,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:24,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:24,928 INFO L225 Difference]: With dead ends: 11942 [2022-03-15 15:32:24,928 INFO L226 Difference]: Without dead ends: 11467 [2022-03-15 15:32:24,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:24,929 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 159 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:24,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 248 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:32:24,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11467 states. [2022-03-15 15:32:25,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11467 to 5275. [2022-03-15 15:32:25,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.713500189609404) internal successors, (24859), 5274 states have internal predecessors, (24859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:25,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24859 transitions. [2022-03-15 15:32:25,073 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24859 transitions. Word has length 29 [2022-03-15 15:32:25,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:25,073 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 24859 transitions. [2022-03-15 15:32:25,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:25,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24859 transitions. [2022-03-15 15:32:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:25,083 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:25,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:25,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable693 [2022-03-15 15:32:25,083 INFO L402 AbstractCegarLoop]: === Iteration 695 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:25,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:25,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1168886495, now seen corresponding path program 690 times [2022-03-15 15:32:25,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:25,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313546007] [2022-03-15 15:32:25,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:25,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:25,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:25,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:25,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313546007] [2022-03-15 15:32:25,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313546007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:25,245 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:25,245 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:25,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100970729] [2022-03-15 15:32:25,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:25,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:25,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:25,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:25,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:25,245 INFO L87 Difference]: Start difference. First operand 5275 states and 24859 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:25,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:25,467 INFO L93 Difference]: Finished difference Result 11938 states and 53343 transitions. [2022-03-15 15:32:25,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:25,468 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:25,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:25,504 INFO L225 Difference]: With dead ends: 11938 [2022-03-15 15:32:25,504 INFO L226 Difference]: Without dead ends: 11337 [2022-03-15 15:32:25,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:25,505 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 147 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:25,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 216 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:25,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11337 states. [2022-03-15 15:32:25,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11337 to 5145. [2022-03-15 15:32:25,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.739113530326594) internal successors, (24378), 5144 states have internal predecessors, (24378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:25,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24378 transitions. [2022-03-15 15:32:25,659 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24378 transitions. Word has length 29 [2022-03-15 15:32:25,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:25,660 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24378 transitions. [2022-03-15 15:32:25,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:25,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24378 transitions. [2022-03-15 15:32:25,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:25,669 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:25,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:25,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable694 [2022-03-15 15:32:25,670 INFO L402 AbstractCegarLoop]: === Iteration 696 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:25,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:25,670 INFO L85 PathProgramCache]: Analyzing trace with hash -238453887, now seen corresponding path program 691 times [2022-03-15 15:32:25,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:25,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146943265] [2022-03-15 15:32:25,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:25,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:25,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:25,814 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:25,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146943265] [2022-03-15 15:32:25,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146943265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:25,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:25,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:25,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879839485] [2022-03-15 15:32:25,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:25,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:25,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:25,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:25,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:25,814 INFO L87 Difference]: Start difference. First operand 5145 states and 24378 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:25,998 INFO L93 Difference]: Finished difference Result 11519 states and 51604 transitions. [2022-03-15 15:32:25,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:25,998 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:25,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:26,034 INFO L225 Difference]: With dead ends: 11519 [2022-03-15 15:32:26,034 INFO L226 Difference]: Without dead ends: 11104 [2022-03-15 15:32:26,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:26,035 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 175 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:26,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 205 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:26,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2022-03-15 15:32:26,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 5217. [2022-03-15 15:32:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.731211656441718) internal successors, (24678), 5216 states have internal predecessors, (24678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:26,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24678 transitions. [2022-03-15 15:32:26,211 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24678 transitions. Word has length 29 [2022-03-15 15:32:26,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:26,211 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24678 transitions. [2022-03-15 15:32:26,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:26,211 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24678 transitions. [2022-03-15 15:32:26,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:26,222 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:26,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:26,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable695 [2022-03-15 15:32:26,222 INFO L402 AbstractCegarLoop]: === Iteration 697 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:26,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:26,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1085250849, now seen corresponding path program 692 times [2022-03-15 15:32:26,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:26,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972120203] [2022-03-15 15:32:26,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:26,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:26,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:26,335 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:26,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972120203] [2022-03-15 15:32:26,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972120203] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:26,335 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:26,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:26,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047888911] [2022-03-15 15:32:26,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:26,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:26,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:26,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:26,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:26,336 INFO L87 Difference]: Start difference. First operand 5217 states and 24678 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:26,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:26,554 INFO L93 Difference]: Finished difference Result 11579 states and 51820 transitions. [2022-03-15 15:32:26,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:26,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:26,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:26,587 INFO L225 Difference]: With dead ends: 11579 [2022-03-15 15:32:26,587 INFO L226 Difference]: Without dead ends: 11056 [2022-03-15 15:32:26,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:26,587 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 165 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:26,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 220 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:26,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2022-03-15 15:32:26,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5169. [2022-03-15 15:32:26,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.7364551083591335) internal successors, (24478), 5168 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:26,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24478 transitions. [2022-03-15 15:32:26,723 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24478 transitions. Word has length 29 [2022-03-15 15:32:26,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:26,723 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24478 transitions. [2022-03-15 15:32:26,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:26,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24478 transitions. [2022-03-15 15:32:26,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:26,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:26,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:26,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable696 [2022-03-15 15:32:26,733 INFO L402 AbstractCegarLoop]: === Iteration 698 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:26,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:26,733 INFO L85 PathProgramCache]: Analyzing trace with hash 2033451871, now seen corresponding path program 693 times [2022-03-15 15:32:26,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:26,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321773514] [2022-03-15 15:32:26,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:26,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:26,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:26,892 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:26,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321773514] [2022-03-15 15:32:26,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321773514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:26,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:26,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:26,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324071961] [2022-03-15 15:32:26,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:26,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:26,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:26,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:26,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:26,893 INFO L87 Difference]: Start difference. First operand 5169 states and 24478 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:27,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:27,086 INFO L93 Difference]: Finished difference Result 11515 states and 51568 transitions. [2022-03-15 15:32:27,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:27,086 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:27,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:27,119 INFO L225 Difference]: With dead ends: 11515 [2022-03-15 15:32:27,120 INFO L226 Difference]: Without dead ends: 11100 [2022-03-15 15:32:27,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:27,120 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 163 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:27,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 198 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:27,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11100 states. [2022-03-15 15:32:27,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11100 to 5217. [2022-03-15 15:32:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.726610429447852) internal successors, (24654), 5216 states have internal predecessors, (24654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:27,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24654 transitions. [2022-03-15 15:32:27,265 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24654 transitions. Word has length 29 [2022-03-15 15:32:27,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:27,265 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24654 transitions. [2022-03-15 15:32:27,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:27,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24654 transitions. [2022-03-15 15:32:27,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:27,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:27,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:27,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable697 [2022-03-15 15:32:27,275 INFO L402 AbstractCegarLoop]: === Iteration 699 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:27,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:27,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1237424991, now seen corresponding path program 694 times [2022-03-15 15:32:27,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:27,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741924859] [2022-03-15 15:32:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:27,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:27,434 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:27,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741924859] [2022-03-15 15:32:27,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741924859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:27,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:27,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:27,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79272575] [2022-03-15 15:32:27,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:27,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:27,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:27,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:27,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:27,435 INFO L87 Difference]: Start difference. First operand 5217 states and 24654 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:27,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:27,680 INFO L93 Difference]: Finished difference Result 11571 states and 51772 transitions. [2022-03-15 15:32:27,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:27,680 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:27,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:27,712 INFO L225 Difference]: With dead ends: 11571 [2022-03-15 15:32:27,712 INFO L226 Difference]: Without dead ends: 11052 [2022-03-15 15:32:27,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:27,712 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 153 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:27,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 260 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:32:27,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11052 states. [2022-03-15 15:32:27,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11052 to 5169. [2022-03-15 15:32:27,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.731811145510836) internal successors, (24454), 5168 states have internal predecessors, (24454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:27,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24454 transitions. [2022-03-15 15:32:27,851 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24454 transitions. Word has length 29 [2022-03-15 15:32:27,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:27,851 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24454 transitions. [2022-03-15 15:32:27,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:27,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24454 transitions. [2022-03-15 15:32:27,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:27,861 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:27,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:27,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable698 [2022-03-15 15:32:27,861 INFO L402 AbstractCegarLoop]: === Iteration 700 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:27,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:27,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1176703805, now seen corresponding path program 695 times [2022-03-15 15:32:27,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:27,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855075385] [2022-03-15 15:32:27,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:27,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:27,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:27,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:27,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855075385] [2022-03-15 15:32:27,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855075385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:27,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:27,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:27,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512409047] [2022-03-15 15:32:27,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:27,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:27,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:27,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:27,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:27,977 INFO L87 Difference]: Start difference. First operand 5169 states and 24454 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:28,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:28,155 INFO L93 Difference]: Finished difference Result 11663 states and 52212 transitions. [2022-03-15 15:32:28,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:28,155 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:28,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:28,188 INFO L225 Difference]: With dead ends: 11663 [2022-03-15 15:32:28,188 INFO L226 Difference]: Without dead ends: 11188 [2022-03-15 15:32:28,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:28,188 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 161 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:28,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 210 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:28,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11188 states. [2022-03-15 15:32:28,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11188 to 5245. [2022-03-15 15:32:28,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.71815408085431) internal successors, (24742), 5244 states have internal predecessors, (24742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:28,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24742 transitions. [2022-03-15 15:32:28,329 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24742 transitions. Word has length 29 [2022-03-15 15:32:28,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:28,330 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 24742 transitions. [2022-03-15 15:32:28,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:28,330 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24742 transitions. [2022-03-15 15:32:28,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:28,339 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:28,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:28,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable699 [2022-03-15 15:32:28,340 INFO L402 AbstractCegarLoop]: === Iteration 701 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:28,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:28,340 INFO L85 PathProgramCache]: Analyzing trace with hash 695801759, now seen corresponding path program 696 times [2022-03-15 15:32:28,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:28,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114060897] [2022-03-15 15:32:28,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:28,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:28,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:28,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:28,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114060897] [2022-03-15 15:32:28,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114060897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:28,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:28,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:28,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23752579] [2022-03-15 15:32:28,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:28,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:28,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:28,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:28,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:28,459 INFO L87 Difference]: Start difference. First operand 5245 states and 24742 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:28,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:28,691 INFO L93 Difference]: Finished difference Result 11659 states and 52124 transitions. [2022-03-15 15:32:28,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:28,691 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:28,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:28,728 INFO L225 Difference]: With dead ends: 11659 [2022-03-15 15:32:28,728 INFO L226 Difference]: Without dead ends: 11068 [2022-03-15 15:32:28,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:28,729 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 155 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:28,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 215 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:28,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2022-03-15 15:32:28,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 5125. [2022-03-15 15:32:28,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.745511319281811) internal successors, (24316), 5124 states have internal predecessors, (24316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:28,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24316 transitions. [2022-03-15 15:32:28,876 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24316 transitions. Word has length 29 [2022-03-15 15:32:28,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:28,876 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24316 transitions. [2022-03-15 15:32:28,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:28,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24316 transitions. [2022-03-15 15:32:28,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:28,885 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:28,885 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:28,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable700 [2022-03-15 15:32:28,885 INFO L402 AbstractCegarLoop]: === Iteration 702 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:28,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:28,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1229250275, now seen corresponding path program 697 times [2022-03-15 15:32:28,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:28,886 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745538736] [2022-03-15 15:32:28,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:28,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:29,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:29,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:29,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745538736] [2022-03-15 15:32:29,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745538736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:29,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:29,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:29,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916905080] [2022-03-15 15:32:29,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:29,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:29,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:29,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:29,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:29,056 INFO L87 Difference]: Start difference. First operand 5125 states and 24316 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:29,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:29,277 INFO L93 Difference]: Finished difference Result 11374 states and 50978 transitions. [2022-03-15 15:32:29,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:29,278 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:29,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:29,309 INFO L225 Difference]: With dead ends: 11374 [2022-03-15 15:32:29,310 INFO L226 Difference]: Without dead ends: 10897 [2022-03-15 15:32:29,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:29,310 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 160 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:29,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 231 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:29,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10897 states. [2022-03-15 15:32:29,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10897 to 5209. [2022-03-15 15:32:29,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.73963133640553) internal successors, (24684), 5208 states have internal predecessors, (24684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:29,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24684 transitions. [2022-03-15 15:32:29,447 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24684 transitions. Word has length 29 [2022-03-15 15:32:29,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:29,447 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24684 transitions. [2022-03-15 15:32:29,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:29,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24684 transitions. [2022-03-15 15:32:29,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:29,456 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:29,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:29,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable701 [2022-03-15 15:32:29,457 INFO L402 AbstractCegarLoop]: === Iteration 703 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:29,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:29,457 INFO L85 PathProgramCache]: Analyzing trace with hash 382453313, now seen corresponding path program 698 times [2022-03-15 15:32:29,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:29,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80873087] [2022-03-15 15:32:29,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:29,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:29,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:29,625 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:29,625 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80873087] [2022-03-15 15:32:29,625 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80873087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:29,626 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:29,626 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:29,626 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157443194] [2022-03-15 15:32:29,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:29,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:29,626 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:29,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:29,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:29,626 INFO L87 Difference]: Start difference. First operand 5209 states and 24684 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:29,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:29,828 INFO L93 Difference]: Finished difference Result 11312 states and 50661 transitions. [2022-03-15 15:32:29,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:29,828 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:29,864 INFO L225 Difference]: With dead ends: 11312 [2022-03-15 15:32:29,864 INFO L226 Difference]: Without dead ends: 10849 [2022-03-15 15:32:29,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:29,864 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:29,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 236 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:29,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10849 states. [2022-03-15 15:32:29,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10849 to 5161. [2022-03-15 15:32:29,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.744961240310078) internal successors, (24484), 5160 states have internal predecessors, (24484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:30,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24484 transitions. [2022-03-15 15:32:30,008 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24484 transitions. Word has length 29 [2022-03-15 15:32:30,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:30,008 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24484 transitions. [2022-03-15 15:32:30,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:30,008 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24484 transitions. [2022-03-15 15:32:30,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:30,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:30,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:30,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable702 [2022-03-15 15:32:30,018 INFO L402 AbstractCegarLoop]: === Iteration 704 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:30,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:30,018 INFO L85 PathProgramCache]: Analyzing trace with hash -793811263, now seen corresponding path program 699 times [2022-03-15 15:32:30,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:30,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92764660] [2022-03-15 15:32:30,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:30,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:30,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:30,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:30,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92764660] [2022-03-15 15:32:30,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92764660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:30,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:30,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:30,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194310181] [2022-03-15 15:32:30,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:30,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:30,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:30,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:30,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:30,132 INFO L87 Difference]: Start difference. First operand 5161 states and 24484 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:30,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:30,295 INFO L93 Difference]: Finished difference Result 11464 states and 51365 transitions. [2022-03-15 15:32:30,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:30,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:30,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:30,326 INFO L225 Difference]: With dead ends: 11464 [2022-03-15 15:32:30,326 INFO L226 Difference]: Without dead ends: 10987 [2022-03-15 15:32:30,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:30,327 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:30,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 216 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:30,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10987 states. [2022-03-15 15:32:30,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10987 to 5239. [2022-03-15 15:32:30,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.730240549828179) internal successors, (24777), 5238 states have internal predecessors, (24777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:30,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24777 transitions. [2022-03-15 15:32:30,466 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24777 transitions. Word has length 29 [2022-03-15 15:32:30,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:30,466 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 24777 transitions. [2022-03-15 15:32:30,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:30,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24777 transitions. [2022-03-15 15:32:30,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:30,476 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:30,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:30,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable703 [2022-03-15 15:32:30,476 INFO L402 AbstractCegarLoop]: === Iteration 705 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:30,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:30,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1589838143, now seen corresponding path program 700 times [2022-03-15 15:32:30,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:30,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209464262] [2022-03-15 15:32:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:30,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:30,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:30,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209464262] [2022-03-15 15:32:30,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209464262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:30,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:30,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:30,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161765289] [2022-03-15 15:32:30,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:30,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:30,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:30,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:30,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:30,592 INFO L87 Difference]: Start difference. First operand 5239 states and 24777 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:30,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:30,776 INFO L93 Difference]: Finished difference Result 11462 states and 51282 transitions. [2022-03-15 15:32:30,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:30,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:30,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:30,808 INFO L225 Difference]: With dead ends: 11462 [2022-03-15 15:32:30,809 INFO L226 Difference]: Without dead ends: 10909 [2022-03-15 15:32:30,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:30,809 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 152 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:30,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 207 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:30,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10909 states. [2022-03-15 15:32:30,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10909 to 5161. [2022-03-15 15:32:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.74031007751938) internal successors, (24460), 5160 states have internal predecessors, (24460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:30,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24460 transitions. [2022-03-15 15:32:30,944 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24460 transitions. Word has length 29 [2022-03-15 15:32:30,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:30,944 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24460 transitions. [2022-03-15 15:32:30,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:30,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24460 transitions. [2022-03-15 15:32:30,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:30,954 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:30,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:30,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable704 [2022-03-15 15:32:30,954 INFO L402 AbstractCegarLoop]: === Iteration 706 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:30,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:30,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1650559329, now seen corresponding path program 701 times [2022-03-15 15:32:30,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:30,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634153150] [2022-03-15 15:32:30,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:30,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:31,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:31,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:31,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634153150] [2022-03-15 15:32:31,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634153150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:31,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:31,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:31,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772922251] [2022-03-15 15:32:31,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:31,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:31,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:31,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:31,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:31,132 INFO L87 Difference]: Start difference. First operand 5161 states and 24460 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:31,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:31,361 INFO L93 Difference]: Finished difference Result 11310 states and 50656 transitions. [2022-03-15 15:32:31,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:31,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:31,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:31,393 INFO L225 Difference]: With dead ends: 11310 [2022-03-15 15:32:31,393 INFO L226 Difference]: Without dead ends: 10895 [2022-03-15 15:32:31,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:31,393 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 163 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:31,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 220 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:31,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10895 states. [2022-03-15 15:32:31,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10895 to 5209. [2022-03-15 15:32:31,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.7304147465437785) internal successors, (24636), 5208 states have internal predecessors, (24636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:31,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24636 transitions. [2022-03-15 15:32:31,534 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24636 transitions. Word has length 29 [2022-03-15 15:32:31,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:31,534 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24636 transitions. [2022-03-15 15:32:31,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:31,534 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24636 transitions. [2022-03-15 15:32:31,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:31,544 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:31,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:31,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable705 [2022-03-15 15:32:31,544 INFO L402 AbstractCegarLoop]: === Iteration 707 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:31,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:31,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2131461375, now seen corresponding path program 702 times [2022-03-15 15:32:31,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:31,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930853620] [2022-03-15 15:32:31,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:31,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:31,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:31,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930853620] [2022-03-15 15:32:31,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930853620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:31,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:31,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:31,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233823593] [2022-03-15 15:32:31,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:31,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:31,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:31,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:31,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:31,706 INFO L87 Difference]: Start difference. First operand 5209 states and 24636 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:31,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:31,940 INFO L93 Difference]: Finished difference Result 11370 states and 50872 transitions. [2022-03-15 15:32:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:31,941 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:31,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:31,975 INFO L225 Difference]: With dead ends: 11370 [2022-03-15 15:32:31,975 INFO L226 Difference]: Without dead ends: 10823 [2022-03-15 15:32:31,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:31,975 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 162 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:31,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 222 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10823 states. [2022-03-15 15:32:32,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10823 to 5137. [2022-03-15 15:32:32,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.7453271028037385) internal successors, (24372), 5136 states have internal predecessors, (24372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24372 transitions. [2022-03-15 15:32:32,117 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24372 transitions. Word has length 29 [2022-03-15 15:32:32,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:32,118 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24372 transitions. [2022-03-15 15:32:32,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:32,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24372 transitions. [2022-03-15 15:32:32,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:32,127 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:32,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:32,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable706 [2022-03-15 15:32:32,128 INFO L402 AbstractCegarLoop]: === Iteration 708 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:32,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:32,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1607669951, now seen corresponding path program 703 times [2022-03-15 15:32:32,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:32,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305878632] [2022-03-15 15:32:32,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:32,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:32,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:32,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:32,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305878632] [2022-03-15 15:32:32,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305878632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:32,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:32,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:32,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011629137] [2022-03-15 15:32:32,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:32,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:32,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:32,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:32,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:32,272 INFO L87 Difference]: Start difference. First operand 5137 states and 24372 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:32,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:32,500 INFO L93 Difference]: Finished difference Result 11368 states and 50947 transitions. [2022-03-15 15:32:32,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:32,501 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:32,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:32,533 INFO L225 Difference]: With dead ends: 11368 [2022-03-15 15:32:32,533 INFO L226 Difference]: Without dead ends: 10891 [2022-03-15 15:32:32,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:32,533 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 135 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:32,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 285 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:32,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2022-03-15 15:32:32,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 5209. [2022-03-15 15:32:32,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.7373271889400925) internal successors, (24672), 5208 states have internal predecessors, (24672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:32,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24672 transitions. [2022-03-15 15:32:32,675 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24672 transitions. Word has length 29 [2022-03-15 15:32:32,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:32,675 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24672 transitions. [2022-03-15 15:32:32,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:32,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24672 transitions. [2022-03-15 15:32:32,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:32,685 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:32,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:32,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable707 [2022-03-15 15:32:32,686 INFO L402 AbstractCegarLoop]: === Iteration 709 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:32,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:32,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1840500383, now seen corresponding path program 704 times [2022-03-15 15:32:32,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:32,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545835430] [2022-03-15 15:32:32,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:32,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:32,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:32,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:32,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545835430] [2022-03-15 15:32:32,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545835430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:32,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:32,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:32,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105849936] [2022-03-15 15:32:32,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:32,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:32,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:32,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:32,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:32,825 INFO L87 Difference]: Start difference. First operand 5209 states and 24672 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:33,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:33,019 INFO L93 Difference]: Finished difference Result 11306 states and 50630 transitions. [2022-03-15 15:32:33,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:33,020 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:33,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:33,053 INFO L225 Difference]: With dead ends: 11306 [2022-03-15 15:32:33,053 INFO L226 Difference]: Without dead ends: 10843 [2022-03-15 15:32:33,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:33,054 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 164 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:33,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 231 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:33,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10843 states. [2022-03-15 15:32:33,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10843 to 5161. [2022-03-15 15:32:33,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.742635658914729) internal successors, (24472), 5160 states have internal predecessors, (24472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:33,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24472 transitions. [2022-03-15 15:32:33,197 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24472 transitions. Word has length 29 [2022-03-15 15:32:33,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:33,197 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24472 transitions. [2022-03-15 15:32:33,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:33,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24472 transitions. [2022-03-15 15:32:33,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:33,207 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:33,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:33,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable708 [2022-03-15 15:32:33,207 INFO L402 AbstractCegarLoop]: === Iteration 710 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:33,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:33,207 INFO L85 PathProgramCache]: Analyzing trace with hash -2085322943, now seen corresponding path program 705 times [2022-03-15 15:32:33,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:33,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374214587] [2022-03-15 15:32:33,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:33,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:33,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:33,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:33,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374214587] [2022-03-15 15:32:33,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374214587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:33,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:33,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:33,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737145453] [2022-03-15 15:32:33,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:33,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:33,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:33,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:33,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:33,349 INFO L87 Difference]: Start difference. First operand 5161 states and 24472 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:33,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:33,536 INFO L93 Difference]: Finished difference Result 11452 states and 51315 transitions. [2022-03-15 15:32:33,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:33,537 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:33,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:33,569 INFO L225 Difference]: With dead ends: 11452 [2022-03-15 15:32:33,569 INFO L226 Difference]: Without dead ends: 10975 [2022-03-15 15:32:33,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:33,569 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 167 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:33,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 214 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:33,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10975 states. [2022-03-15 15:32:33,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10975 to 5237. [2022-03-15 15:32:33,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.728800611153552) internal successors, (24760), 5236 states have internal predecessors, (24760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:33,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24760 transitions. [2022-03-15 15:32:33,710 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24760 transitions. Word has length 29 [2022-03-15 15:32:33,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:33,710 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 24760 transitions. [2022-03-15 15:32:33,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:33,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24760 transitions. [2022-03-15 15:32:33,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:33,720 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:33,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:33,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable709 [2022-03-15 15:32:33,720 INFO L402 AbstractCegarLoop]: === Iteration 711 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:33,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:33,720 INFO L85 PathProgramCache]: Analyzing trace with hash -548722879, now seen corresponding path program 706 times [2022-03-15 15:32:33,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:33,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157986066] [2022-03-15 15:32:33,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:33,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:33,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:33,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:33,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157986066] [2022-03-15 15:32:33,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157986066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:33,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:33,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:33,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878650853] [2022-03-15 15:32:33,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:33,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:33,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:33,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:33,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:33,869 INFO L87 Difference]: Start difference. First operand 5237 states and 24760 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:34,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:34,068 INFO L93 Difference]: Finished difference Result 11446 states and 51222 transitions. [2022-03-15 15:32:34,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:34,068 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:34,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:34,106 INFO L225 Difference]: With dead ends: 11446 [2022-03-15 15:32:34,106 INFO L226 Difference]: Without dead ends: 10899 [2022-03-15 15:32:34,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:34,106 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 145 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:34,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 245 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:34,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10899 states. [2022-03-15 15:32:34,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10899 to 5161. [2022-03-15 15:32:34,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.737984496124031) internal successors, (24448), 5160 states have internal predecessors, (24448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:34,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24448 transitions. [2022-03-15 15:32:34,272 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24448 transitions. Word has length 29 [2022-03-15 15:32:34,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:34,272 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24448 transitions. [2022-03-15 15:32:34,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:34,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24448 transitions. [2022-03-15 15:32:34,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:34,283 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:34,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:34,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable710 [2022-03-15 15:32:34,283 INFO L402 AbstractCegarLoop]: === Iteration 712 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:34,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:34,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1352896287, now seen corresponding path program 707 times [2022-03-15 15:32:34,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:34,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203449253] [2022-03-15 15:32:34,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:34,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:34,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:34,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:34,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203449253] [2022-03-15 15:32:34,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203449253] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:34,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:34,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:34,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646494519] [2022-03-15 15:32:34,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:34,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:34,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:34,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:34,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:34,397 INFO L87 Difference]: Start difference. First operand 5161 states and 24448 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:34,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:34,587 INFO L93 Difference]: Finished difference Result 11300 states and 50613 transitions. [2022-03-15 15:32:34,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:34,588 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:34,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:34,626 INFO L225 Difference]: With dead ends: 11300 [2022-03-15 15:32:34,626 INFO L226 Difference]: Without dead ends: 10885 [2022-03-15 15:32:34,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:34,626 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 157 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:34,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 255 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:34,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2022-03-15 15:32:34,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 5209. [2022-03-15 15:32:34,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.728110599078341) internal successors, (24624), 5208 states have internal predecessors, (24624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:34,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24624 transitions. [2022-03-15 15:32:34,785 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24624 transitions. Word has length 29 [2022-03-15 15:32:34,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:34,785 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24624 transitions. [2022-03-15 15:32:34,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:34,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24624 transitions. [2022-03-15 15:32:34,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:34,795 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:34,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:34,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable711 [2022-03-15 15:32:34,796 INFO L402 AbstractCegarLoop]: === Iteration 713 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:34,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:34,796 INFO L85 PathProgramCache]: Analyzing trace with hash 178936577, now seen corresponding path program 708 times [2022-03-15 15:32:34,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:34,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172026480] [2022-03-15 15:32:34,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:34,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:34,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:34,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:34,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172026480] [2022-03-15 15:32:34,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172026480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:34,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:34,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:34,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367631214] [2022-03-15 15:32:34,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:34,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:34,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:34,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:34,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:34,912 INFO L87 Difference]: Start difference. First operand 5209 states and 24624 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:35,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:35,091 INFO L93 Difference]: Finished difference Result 11356 states and 50817 transitions. [2022-03-15 15:32:35,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:35,091 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:35,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:35,129 INFO L225 Difference]: With dead ends: 11356 [2022-03-15 15:32:35,130 INFO L226 Difference]: Without dead ends: 10813 [2022-03-15 15:32:35,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:35,130 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:35,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 206 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:35,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10813 states. [2022-03-15 15:32:35,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10813 to 5137. [2022-03-15 15:32:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.742990654205608) internal successors, (24360), 5136 states have internal predecessors, (24360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:35,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24360 transitions. [2022-03-15 15:32:35,302 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24360 transitions. Word has length 29 [2022-03-15 15:32:35,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:35,302 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24360 transitions. [2022-03-15 15:32:35,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:35,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24360 transitions. [2022-03-15 15:32:35,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:35,313 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:35,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:35,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable712 [2022-03-15 15:32:35,313 INFO L402 AbstractCegarLoop]: === Iteration 714 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:35,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:35,313 INFO L85 PathProgramCache]: Analyzing trace with hash -308840545, now seen corresponding path program 709 times [2022-03-15 15:32:35,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:35,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131815061] [2022-03-15 15:32:35,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:35,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:35,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:35,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:35,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131815061] [2022-03-15 15:32:35,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131815061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:35,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:35,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:35,428 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285656443] [2022-03-15 15:32:35,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:35,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:35,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:35,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:35,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:35,429 INFO L87 Difference]: Start difference. First operand 5137 states and 24360 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:35,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:35,608 INFO L93 Difference]: Finished difference Result 11590 states and 51974 transitions. [2022-03-15 15:32:35,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:35,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:35,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:35,646 INFO L225 Difference]: With dead ends: 11590 [2022-03-15 15:32:35,646 INFO L226 Difference]: Without dead ends: 11113 [2022-03-15 15:32:35,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:35,646 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 166 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:35,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 217 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:35,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11113 states. [2022-03-15 15:32:35,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11113 to 5253. [2022-03-15 15:32:35,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.732292460015232) internal successors, (24854), 5252 states have internal predecessors, (24854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:35,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24854 transitions. [2022-03-15 15:32:35,811 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24854 transitions. Word has length 29 [2022-03-15 15:32:35,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:35,812 INFO L470 AbstractCegarLoop]: Abstraction has 5253 states and 24854 transitions. [2022-03-15 15:32:35,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:35,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24854 transitions. [2022-03-15 15:32:35,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:35,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:35,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:35,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable713 [2022-03-15 15:32:35,823 INFO L402 AbstractCegarLoop]: === Iteration 715 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:35,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:35,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1104867425, now seen corresponding path program 710 times [2022-03-15 15:32:35,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:35,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668576353] [2022-03-15 15:32:35,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:35,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:35,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:35,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:35,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668576353] [2022-03-15 15:32:35,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668576353] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:35,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:35,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:35,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366661533] [2022-03-15 15:32:35,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:35,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:35,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:35,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:35,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:35,937 INFO L87 Difference]: Start difference. First operand 5253 states and 24854 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:36,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:36,118 INFO L93 Difference]: Finished difference Result 11588 states and 51891 transitions. [2022-03-15 15:32:36,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:36,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:36,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:36,157 INFO L225 Difference]: With dead ends: 11588 [2022-03-15 15:32:36,157 INFO L226 Difference]: Without dead ends: 11035 [2022-03-15 15:32:36,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:36,157 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 165 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:36,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 232 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:36,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11035 states. [2022-03-15 15:32:36,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11035 to 5175. [2022-03-15 15:32:36,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.739659837649787) internal successors, (24523), 5174 states have internal predecessors, (24523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:36,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24523 transitions. [2022-03-15 15:32:36,336 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24523 transitions. Word has length 29 [2022-03-15 15:32:36,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:36,336 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24523 transitions. [2022-03-15 15:32:36,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:36,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24523 transitions. [2022-03-15 15:32:36,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:36,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:36,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:36,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable714 [2022-03-15 15:32:36,348 INFO L402 AbstractCegarLoop]: === Iteration 716 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:36,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:36,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1400761217, now seen corresponding path program 711 times [2022-03-15 15:32:36,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:36,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058470278] [2022-03-15 15:32:36,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:36,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:36,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:36,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:36,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058470278] [2022-03-15 15:32:36,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058470278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:36,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:36,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:36,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675328976] [2022-03-15 15:32:36,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:36,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:36,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:36,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:36,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:36,472 INFO L87 Difference]: Start difference. First operand 5175 states and 24523 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:36,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:36,656 INFO L93 Difference]: Finished difference Result 11584 states and 51917 transitions. [2022-03-15 15:32:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:36,656 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:36,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:36,698 INFO L225 Difference]: With dead ends: 11584 [2022-03-15 15:32:36,698 INFO L226 Difference]: Without dead ends: 11107 [2022-03-15 15:32:36,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:36,698 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 152 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:36,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 217 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:36,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11107 states. [2022-03-15 15:32:36,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11107 to 5251. [2022-03-15 15:32:36,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.725904761904762) internal successors, (24811), 5250 states have internal predecessors, (24811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:36,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24811 transitions. [2022-03-15 15:32:36,881 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24811 transitions. Word has length 29 [2022-03-15 15:32:36,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:36,882 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24811 transitions. [2022-03-15 15:32:36,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:36,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24811 transitions. [2022-03-15 15:32:36,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:36,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:36,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:36,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable715 [2022-03-15 15:32:36,892 INFO L402 AbstractCegarLoop]: === Iteration 717 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:36,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:36,893 INFO L85 PathProgramCache]: Analyzing trace with hash 909324191, now seen corresponding path program 712 times [2022-03-15 15:32:36,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:36,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012362460] [2022-03-15 15:32:36,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:36,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:37,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:37,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:37,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012362460] [2022-03-15 15:32:37,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012362460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:37,020 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:37,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:37,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516165812] [2022-03-15 15:32:37,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:37,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:37,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:37,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:37,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:37,021 INFO L87 Difference]: Start difference. First operand 5251 states and 24811 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:37,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:37,210 INFO L93 Difference]: Finished difference Result 11578 states and 51824 transitions. [2022-03-15 15:32:37,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:37,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:37,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:37,245 INFO L225 Difference]: With dead ends: 11578 [2022-03-15 15:32:37,245 INFO L226 Difference]: Without dead ends: 11031 [2022-03-15 15:32:37,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:37,245 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 149 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:37,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 241 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:37,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11031 states. [2022-03-15 15:32:37,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11031 to 5175. [2022-03-15 15:32:37,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 4.732315423270197) internal successors, (24485), 5174 states have internal predecessors, (24485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:37,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 24485 transitions. [2022-03-15 15:32:37,419 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 24485 transitions. Word has length 29 [2022-03-15 15:32:37,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:37,419 INFO L470 AbstractCegarLoop]: Abstraction has 5175 states and 24485 transitions. [2022-03-15 15:32:37,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:37,420 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 24485 transitions. [2022-03-15 15:32:37,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:37,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:37,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:37,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable716 [2022-03-15 15:32:37,431 INFO L402 AbstractCegarLoop]: === Iteration 718 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:37,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:37,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1900955745, now seen corresponding path program 713 times [2022-03-15 15:32:37,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:37,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763367664] [2022-03-15 15:32:37,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:37,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:37,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:37,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:37,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763367664] [2022-03-15 15:32:37,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763367664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:37,588 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:37,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:37,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539965320] [2022-03-15 15:32:37,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:37,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:37,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:37,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:37,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:37,589 INFO L87 Difference]: Start difference. First operand 5175 states and 24485 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:37,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:37,784 INFO L93 Difference]: Finished difference Result 11580 states and 51869 transitions. [2022-03-15 15:32:37,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:37,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:37,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:37,818 INFO L225 Difference]: With dead ends: 11580 [2022-03-15 15:32:37,818 INFO L226 Difference]: Without dead ends: 11105 [2022-03-15 15:32:37,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:37,818 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:37,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 223 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:37,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11105 states. [2022-03-15 15:32:37,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11105 to 5251. [2022-03-15 15:32:37,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.718666666666667) internal successors, (24773), 5250 states have internal predecessors, (24773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:38,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24773 transitions. [2022-03-15 15:32:38,003 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24773 transitions. Word has length 29 [2022-03-15 15:32:38,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:38,003 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24773 transitions. [2022-03-15 15:32:38,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:38,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24773 transitions. [2022-03-15 15:32:38,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:38,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:38,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:38,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable717 [2022-03-15 15:32:38,013 INFO L402 AbstractCegarLoop]: === Iteration 719 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:38,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:38,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1913109505, now seen corresponding path program 714 times [2022-03-15 15:32:38,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:38,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45349274] [2022-03-15 15:32:38,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:38,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:38,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:38,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45349274] [2022-03-15 15:32:38,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45349274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:38,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:38,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:38,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420180948] [2022-03-15 15:32:38,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:38,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:38,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:38,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:38,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:38,134 INFO L87 Difference]: Start difference. First operand 5251 states and 24773 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:38,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:38,324 INFO L93 Difference]: Finished difference Result 11576 states and 51781 transitions. [2022-03-15 15:32:38,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:38,324 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:38,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:38,358 INFO L225 Difference]: With dead ends: 11576 [2022-03-15 15:32:38,358 INFO L226 Difference]: Without dead ends: 10991 [2022-03-15 15:32:38,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:38,359 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:38,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 222 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:38,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10991 states. [2022-03-15 15:32:38,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10991 to 5137. [2022-03-15 15:32:38,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.740654205607477) internal successors, (24348), 5136 states have internal predecessors, (24348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:38,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24348 transitions. [2022-03-15 15:32:38,503 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24348 transitions. Word has length 29 [2022-03-15 15:32:38,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:38,503 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24348 transitions. [2022-03-15 15:32:38,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:38,503 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24348 transitions. [2022-03-15 15:32:38,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:38,513 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:38,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:38,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable718 [2022-03-15 15:32:38,513 INFO L402 AbstractCegarLoop]: === Iteration 720 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:38,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:38,514 INFO L85 PathProgramCache]: Analyzing trace with hash -2138664963, now seen corresponding path program 715 times [2022-03-15 15:32:38,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:38,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273010098] [2022-03-15 15:32:38,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:38,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:38,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:38,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:38,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273010098] [2022-03-15 15:32:38,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273010098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:38,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:38,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:38,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822051355] [2022-03-15 15:32:38,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:38,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:38,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:38,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:38,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:38,738 INFO L87 Difference]: Start difference. First operand 5137 states and 24348 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:38,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:38,954 INFO L93 Difference]: Finished difference Result 11302 states and 50644 transitions. [2022-03-15 15:32:38,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:38,954 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:38,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:38,986 INFO L225 Difference]: With dead ends: 11302 [2022-03-15 15:32:38,986 INFO L226 Difference]: Without dead ends: 10887 [2022-03-15 15:32:38,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:38,986 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 158 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:38,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 238 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:39,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10887 states. [2022-03-15 15:32:39,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10887 to 5209. [2022-03-15 15:32:39,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.732718894009216) internal successors, (24648), 5208 states have internal predecessors, (24648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:39,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24648 transitions. [2022-03-15 15:32:39,127 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24648 transitions. Word has length 29 [2022-03-15 15:32:39,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:39,127 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24648 transitions. [2022-03-15 15:32:39,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:39,127 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24648 transitions. [2022-03-15 15:32:39,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:39,137 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:39,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:39,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable719 [2022-03-15 15:32:39,137 INFO L402 AbstractCegarLoop]: === Iteration 721 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:39,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:39,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1675400287, now seen corresponding path program 716 times [2022-03-15 15:32:39,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:39,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601136138] [2022-03-15 15:32:39,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:39,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:39,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:39,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:39,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601136138] [2022-03-15 15:32:39,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601136138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:39,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:39,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:39,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635953697] [2022-03-15 15:32:39,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:39,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:39,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:39,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:39,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:39,305 INFO L87 Difference]: Start difference. First operand 5209 states and 24648 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:39,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:39,523 INFO L93 Difference]: Finished difference Result 11362 states and 50860 transitions. [2022-03-15 15:32:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:39,524 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:39,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:39,557 INFO L225 Difference]: With dead ends: 11362 [2022-03-15 15:32:39,557 INFO L226 Difference]: Without dead ends: 10839 [2022-03-15 15:32:39,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:39,558 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 165 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:39,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 208 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:39,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10839 states. [2022-03-15 15:32:39,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10839 to 5161. [2022-03-15 15:32:39,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.737984496124031) internal successors, (24448), 5160 states have internal predecessors, (24448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:39,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24448 transitions. [2022-03-15 15:32:39,711 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24448 transitions. Word has length 29 [2022-03-15 15:32:39,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:39,711 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24448 transitions. [2022-03-15 15:32:39,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:39,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24448 transitions. [2022-03-15 15:32:39,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:39,721 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:39,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:39,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable720 [2022-03-15 15:32:39,721 INFO L402 AbstractCegarLoop]: === Iteration 722 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:39,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:39,721 INFO L85 PathProgramCache]: Analyzing trace with hash -429063201, now seen corresponding path program 717 times [2022-03-15 15:32:39,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:39,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006602352] [2022-03-15 15:32:39,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:39,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:39,895 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:39,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006602352] [2022-03-15 15:32:39,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006602352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:39,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:39,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:39,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576810125] [2022-03-15 15:32:39,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:39,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:39,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:39,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:39,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:39,896 INFO L87 Difference]: Start difference. First operand 5161 states and 24448 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:40,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:40,081 INFO L93 Difference]: Finished difference Result 11298 states and 50608 transitions. [2022-03-15 15:32:40,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:40,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:40,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:40,115 INFO L225 Difference]: With dead ends: 11298 [2022-03-15 15:32:40,116 INFO L226 Difference]: Without dead ends: 10883 [2022-03-15 15:32:40,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:40,116 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 167 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:40,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 198 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:40,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2022-03-15 15:32:40,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 5209. [2022-03-15 15:32:40,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.728110599078341) internal successors, (24624), 5208 states have internal predecessors, (24624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:40,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24624 transitions. [2022-03-15 15:32:40,263 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24624 transitions. Word has length 29 [2022-03-15 15:32:40,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:40,263 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24624 transitions. [2022-03-15 15:32:40,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:40,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24624 transitions. [2022-03-15 15:32:40,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:40,273 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:40,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:40,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable721 [2022-03-15 15:32:40,273 INFO L402 AbstractCegarLoop]: === Iteration 723 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:40,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:40,273 INFO L85 PathProgramCache]: Analyzing trace with hash 663907295, now seen corresponding path program 718 times [2022-03-15 15:32:40,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:40,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553526703] [2022-03-15 15:32:40,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:40,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:40,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:40,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:40,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553526703] [2022-03-15 15:32:40,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553526703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:40,397 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:40,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:40,397 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727618961] [2022-03-15 15:32:40,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:40,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:40,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:40,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:40,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:40,397 INFO L87 Difference]: Start difference. First operand 5209 states and 24624 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:40,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:40,582 INFO L93 Difference]: Finished difference Result 11354 states and 50812 transitions. [2022-03-15 15:32:40,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:40,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:40,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:40,619 INFO L225 Difference]: With dead ends: 11354 [2022-03-15 15:32:40,619 INFO L226 Difference]: Without dead ends: 10835 [2022-03-15 15:32:40,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:40,620 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 152 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:40,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 236 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:40,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10835 states. [2022-03-15 15:32:40,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10835 to 5161. [2022-03-15 15:32:40,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.733333333333333) internal successors, (24424), 5160 states have internal predecessors, (24424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:40,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24424 transitions. [2022-03-15 15:32:40,772 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24424 transitions. Word has length 29 [2022-03-15 15:32:40,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:40,772 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24424 transitions. [2022-03-15 15:32:40,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:40,772 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24424 transitions. [2022-03-15 15:32:40,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:40,782 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:40,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:40,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable722 [2022-03-15 15:32:40,782 INFO L402 AbstractCegarLoop]: === Iteration 724 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:40,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:40,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1218449471, now seen corresponding path program 719 times [2022-03-15 15:32:40,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:40,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368454227] [2022-03-15 15:32:40,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:40,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:40,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:40,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:40,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368454227] [2022-03-15 15:32:40,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368454227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:40,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:40,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:40,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985220619] [2022-03-15 15:32:40,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:40,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:40,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:40,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:40,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:40,907 INFO L87 Difference]: Start difference. First operand 5161 states and 24424 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:41,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:41,085 INFO L93 Difference]: Finished difference Result 11446 states and 51252 transitions. [2022-03-15 15:32:41,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:41,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:41,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:41,120 INFO L225 Difference]: With dead ends: 11446 [2022-03-15 15:32:41,120 INFO L226 Difference]: Without dead ends: 10971 [2022-03-15 15:32:41,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:41,121 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 171 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:41,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 206 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:41,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10971 states. [2022-03-15 15:32:41,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10971 to 5237. [2022-03-15 15:32:41,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.719633307868602) internal successors, (24712), 5236 states have internal predecessors, (24712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24712 transitions. [2022-03-15 15:32:41,275 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24712 transitions. Word has length 29 [2022-03-15 15:32:41,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:41,275 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 24712 transitions. [2022-03-15 15:32:41,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:41,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24712 transitions. [2022-03-15 15:32:41,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:41,285 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:41,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:41,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable723 [2022-03-15 15:32:41,286 INFO L402 AbstractCegarLoop]: === Iteration 725 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:41,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:41,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1053456287, now seen corresponding path program 720 times [2022-03-15 15:32:41,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:41,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056744287] [2022-03-15 15:32:41,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:41,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:41,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:41,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:41,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056744287] [2022-03-15 15:32:41,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056744287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:41,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:41,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:41,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303347353] [2022-03-15 15:32:41,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:41,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:41,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:41,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:41,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:41,414 INFO L87 Difference]: Start difference. First operand 5237 states and 24712 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:41,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:41,605 INFO L93 Difference]: Finished difference Result 11442 states and 51164 transitions. [2022-03-15 15:32:41,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:41,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:41,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:41,637 INFO L225 Difference]: With dead ends: 11442 [2022-03-15 15:32:41,637 INFO L226 Difference]: Without dead ends: 10827 [2022-03-15 15:32:41,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:41,637 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 141 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:41,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 233 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:41,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10827 states. [2022-03-15 15:32:41,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10827 to 5093. [2022-03-15 15:32:41,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.760997643362137) internal successors, (24243), 5092 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:41,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24243 transitions. [2022-03-15 15:32:41,771 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24243 transitions. Word has length 29 [2022-03-15 15:32:41,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:41,771 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24243 transitions. [2022-03-15 15:32:41,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:41,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24243 transitions. [2022-03-15 15:32:41,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:41,780 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:41,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:41,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable724 [2022-03-15 15:32:41,780 INFO L402 AbstractCegarLoop]: === Iteration 726 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:41,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:41,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1130756129, now seen corresponding path program 721 times [2022-03-15 15:32:41,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:41,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43553981] [2022-03-15 15:32:41,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:41,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:41,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:41,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43553981] [2022-03-15 15:32:41,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43553981] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:41,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:41,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:41,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560773168] [2022-03-15 15:32:41,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:41,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:41,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:41,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:41,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:41,923 INFO L87 Difference]: Start difference. First operand 5093 states and 24243 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:42,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:42,180 INFO L93 Difference]: Finished difference Result 11649 states and 51963 transitions. [2022-03-15 15:32:42,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:42,181 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:42,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:42,216 INFO L225 Difference]: With dead ends: 11649 [2022-03-15 15:32:42,216 INFO L226 Difference]: Without dead ends: 11234 [2022-03-15 15:32:42,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:42,217 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 165 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:42,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 226 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:32:42,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-03-15 15:32:42,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 5265. [2022-03-15 15:32:42,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.750569908814589) internal successors, (25007), 5264 states have internal predecessors, (25007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 25007 transitions. [2022-03-15 15:32:42,356 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 25007 transitions. Word has length 29 [2022-03-15 15:32:42,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:42,356 INFO L470 AbstractCegarLoop]: Abstraction has 5265 states and 25007 transitions. [2022-03-15 15:32:42,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:42,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 25007 transitions. [2022-03-15 15:32:42,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:42,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:42,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:42,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable725 [2022-03-15 15:32:42,366 INFO L402 AbstractCegarLoop]: === Iteration 727 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:42,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:42,366 INFO L85 PathProgramCache]: Analyzing trace with hash 145552099, now seen corresponding path program 722 times [2022-03-15 15:32:42,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:42,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953587834] [2022-03-15 15:32:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:42,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:42,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:42,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:42,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953587834] [2022-03-15 15:32:42,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953587834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:42,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:42,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:42,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634747271] [2022-03-15 15:32:42,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:42,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:42,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:42,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:42,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:42,511 INFO L87 Difference]: Start difference. First operand 5265 states and 25007 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:42,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:42,719 INFO L93 Difference]: Finished difference Result 11776 states and 52442 transitions. [2022-03-15 15:32:42,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:42,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:42,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:42,753 INFO L225 Difference]: With dead ends: 11776 [2022-03-15 15:32:42,753 INFO L226 Difference]: Without dead ends: 11154 [2022-03-15 15:32:42,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:42,754 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 153 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:42,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 244 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:42,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11154 states. [2022-03-15 15:32:42,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11154 to 5185. [2022-03-15 15:32:42,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.754436728395062) internal successors, (24647), 5184 states have internal predecessors, (24647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:42,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24647 transitions. [2022-03-15 15:32:42,894 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24647 transitions. Word has length 29 [2022-03-15 15:32:42,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:42,894 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24647 transitions. [2022-03-15 15:32:42,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:42,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24647 transitions. [2022-03-15 15:32:42,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:42,904 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:42,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:42,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable726 [2022-03-15 15:32:42,905 INFO L402 AbstractCegarLoop]: === Iteration 728 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:42,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:42,905 INFO L85 PathProgramCache]: Analyzing trace with hash 910954273, now seen corresponding path program 723 times [2022-03-15 15:32:42,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:42,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693912639] [2022-03-15 15:32:42,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:42,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:43,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:43,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:43,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693912639] [2022-03-15 15:32:43,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693912639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:43,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:43,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:43,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493667821] [2022-03-15 15:32:43,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:43,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:43,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:43,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:43,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:43,062 INFO L87 Difference]: Start difference. First operand 5185 states and 24647 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:43,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:43,315 INFO L93 Difference]: Finished difference Result 11552 states and 51521 transitions. [2022-03-15 15:32:43,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:43,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:43,349 INFO L225 Difference]: With dead ends: 11552 [2022-03-15 15:32:43,349 INFO L226 Difference]: Without dead ends: 11137 [2022-03-15 15:32:43,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:43,350 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 168 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:43,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 230 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:32:43,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-03-15 15:32:43,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 5233. [2022-03-15 15:32:43,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.744457186544342) internal successors, (24823), 5232 states have internal predecessors, (24823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24823 transitions. [2022-03-15 15:32:43,491 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24823 transitions. Word has length 29 [2022-03-15 15:32:43,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:43,491 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24823 transitions. [2022-03-15 15:32:43,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:43,491 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24823 transitions. [2022-03-15 15:32:43,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:43,500 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:43,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:43,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable727 [2022-03-15 15:32:43,500 INFO L402 AbstractCegarLoop]: === Iteration 729 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:43,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:43,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1140241283, now seen corresponding path program 724 times [2022-03-15 15:32:43,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:43,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327342897] [2022-03-15 15:32:43,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:43,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:43,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:43,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:43,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327342897] [2022-03-15 15:32:43,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327342897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:43,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:43,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:43,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439274828] [2022-03-15 15:32:43,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:43,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:43,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:43,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:43,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:43,663 INFO L87 Difference]: Start difference. First operand 5233 states and 24823 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:43,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:43,873 INFO L93 Difference]: Finished difference Result 11614 states and 51742 transitions. [2022-03-15 15:32:43,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:43,874 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:43,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:43,906 INFO L225 Difference]: With dead ends: 11614 [2022-03-15 15:32:43,906 INFO L226 Difference]: Without dead ends: 11089 [2022-03-15 15:32:43,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:43,906 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 156 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:43,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 220 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:43,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11089 states. [2022-03-15 15:32:44,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11089 to 5185. [2022-03-15 15:32:44,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.749807098765432) internal successors, (24623), 5184 states have internal predecessors, (24623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:44,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24623 transitions. [2022-03-15 15:32:44,092 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24623 transitions. Word has length 29 [2022-03-15 15:32:44,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:44,092 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24623 transitions. [2022-03-15 15:32:44,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:44,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24623 transitions. [2022-03-15 15:32:44,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:44,102 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:44,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:44,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable728 [2022-03-15 15:32:44,102 INFO L402 AbstractCegarLoop]: === Iteration 730 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:44,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:44,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1420225083, now seen corresponding path program 725 times [2022-03-15 15:32:44,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:44,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250235708] [2022-03-15 15:32:44,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:44,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:44,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:44,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250235708] [2022-03-15 15:32:44,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250235708] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:44,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:44,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:44,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124602892] [2022-03-15 15:32:44,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:44,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:44,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:44,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:44,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:44,217 INFO L87 Difference]: Start difference. First operand 5185 states and 24623 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:44,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:44,384 INFO L93 Difference]: Finished difference Result 11901 states and 52957 transitions. [2022-03-15 15:32:44,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:44,384 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:44,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:44,417 INFO L225 Difference]: With dead ends: 11901 [2022-03-15 15:32:44,417 INFO L226 Difference]: Without dead ends: 11359 [2022-03-15 15:32:44,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:44,417 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 163 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:44,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 223 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:44,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2022-03-15 15:32:44,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 5328. [2022-03-15 15:32:44,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 4.719729678993805) internal successors, (25142), 5327 states have internal predecessors, (25142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:44,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 25142 transitions. [2022-03-15 15:32:44,561 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 25142 transitions. Word has length 29 [2022-03-15 15:32:44,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:44,561 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 25142 transitions. [2022-03-15 15:32:44,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:44,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 25142 transitions. [2022-03-15 15:32:44,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:44,571 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:44,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:44,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable729 [2022-03-15 15:32:44,572 INFO L402 AbstractCegarLoop]: === Iteration 731 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:44,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:44,572 INFO L85 PathProgramCache]: Analyzing trace with hash 831405219, now seen corresponding path program 726 times [2022-03-15 15:32:44,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:44,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841009980] [2022-03-15 15:32:44,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:44,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:44,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:44,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:44,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841009980] [2022-03-15 15:32:44,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841009980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:44,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:44,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:44,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441985109] [2022-03-15 15:32:44,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:44,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:44,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:44,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:44,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:44,756 INFO L87 Difference]: Start difference. First operand 5328 states and 25142 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:44,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:44,941 INFO L93 Difference]: Finished difference Result 11836 states and 52588 transitions. [2022-03-15 15:32:44,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:44,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:44,974 INFO L225 Difference]: With dead ends: 11836 [2022-03-15 15:32:44,974 INFO L226 Difference]: Without dead ends: 11160 [2022-03-15 15:32:44,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:44,974 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:44,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 207 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:44,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11160 states. [2022-03-15 15:32:45,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11160 to 5129. [2022-03-15 15:32:45,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.756435257410296) internal successors, (24391), 5128 states have internal predecessors, (24391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:45,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24391 transitions. [2022-03-15 15:32:45,113 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24391 transitions. Word has length 29 [2022-03-15 15:32:45,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:45,113 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24391 transitions. [2022-03-15 15:32:45,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:45,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24391 transitions. [2022-03-15 15:32:45,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:45,123 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:45,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:45,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable730 [2022-03-15 15:32:45,123 INFO L402 AbstractCegarLoop]: === Iteration 732 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:45,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:45,123 INFO L85 PathProgramCache]: Analyzing trace with hash -907332669, now seen corresponding path program 727 times [2022-03-15 15:32:45,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:45,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438238448] [2022-03-15 15:32:45,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:45,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:45,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:45,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:45,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438238448] [2022-03-15 15:32:45,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438238448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:45,230 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:45,230 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:45,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188571187] [2022-03-15 15:32:45,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:45,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:45,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:45,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:45,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:45,231 INFO L87 Difference]: Start difference. First operand 5129 states and 24391 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:45,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:45,413 INFO L93 Difference]: Finished difference Result 11598 states and 51751 transitions. [2022-03-15 15:32:45,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:45,413 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:45,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:45,446 INFO L225 Difference]: With dead ends: 11598 [2022-03-15 15:32:45,446 INFO L226 Difference]: Without dead ends: 11183 [2022-03-15 15:32:45,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:45,446 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 159 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:45,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 255 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:45,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11183 states. [2022-03-15 15:32:45,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11183 to 5249. [2022-03-15 15:32:45,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.747522865853658) internal successors, (24915), 5248 states have internal predecessors, (24915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:45,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24915 transitions. [2022-03-15 15:32:45,585 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24915 transitions. Word has length 29 [2022-03-15 15:32:45,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:45,585 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 24915 transitions. [2022-03-15 15:32:45,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:45,585 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24915 transitions. [2022-03-15 15:32:45,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:45,594 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:45,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:45,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable731 [2022-03-15 15:32:45,595 INFO L402 AbstractCegarLoop]: === Iteration 733 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:45,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:45,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1892536699, now seen corresponding path program 728 times [2022-03-15 15:32:45,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:45,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883414381] [2022-03-15 15:32:45,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:45,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:45,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:45,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:45,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883414381] [2022-03-15 15:32:45,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883414381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:45,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:45,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:45,724 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289811914] [2022-03-15 15:32:45,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:45,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:45,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:45,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:45,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:45,725 INFO L87 Difference]: Start difference. First operand 5249 states and 24915 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:45,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:45,903 INFO L93 Difference]: Finished difference Result 11725 states and 52230 transitions. [2022-03-15 15:32:45,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:45,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:45,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:45,936 INFO L225 Difference]: With dead ends: 11725 [2022-03-15 15:32:45,936 INFO L226 Difference]: Without dead ends: 11103 [2022-03-15 15:32:45,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:45,936 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 154 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:45,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 226 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:45,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11103 states. [2022-03-15 15:32:46,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11103 to 5169. [2022-03-15 15:32:46,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.751354489164087) internal successors, (24555), 5168 states have internal predecessors, (24555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:46,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24555 transitions. [2022-03-15 15:32:46,076 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24555 transitions. Word has length 29 [2022-03-15 15:32:46,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:46,076 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24555 transitions. [2022-03-15 15:32:46,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:46,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24555 transitions. [2022-03-15 15:32:46,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:46,086 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:46,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:46,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable732 [2022-03-15 15:32:46,086 INFO L402 AbstractCegarLoop]: === Iteration 734 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:46,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:46,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1500131169, now seen corresponding path program 729 times [2022-03-15 15:32:46,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:46,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685307863] [2022-03-15 15:32:46,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:46,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:46,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:46,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685307863] [2022-03-15 15:32:46,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685307863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:46,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:46,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:46,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044656970] [2022-03-15 15:32:46,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:46,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:46,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:46,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:46,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:46,195 INFO L87 Difference]: Start difference. First operand 5169 states and 24555 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:46,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:46,361 INFO L93 Difference]: Finished difference Result 11499 states and 51304 transitions. [2022-03-15 15:32:46,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:46,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:46,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:46,393 INFO L225 Difference]: With dead ends: 11499 [2022-03-15 15:32:46,393 INFO L226 Difference]: Without dead ends: 11084 [2022-03-15 15:32:46,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:46,393 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 190 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:46,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 204 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:46,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11084 states. [2022-03-15 15:32:46,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11084 to 5217. [2022-03-15 15:32:46,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.741372699386503) internal successors, (24731), 5216 states have internal predecessors, (24731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:46,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24731 transitions. [2022-03-15 15:32:46,531 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24731 transitions. Word has length 29 [2022-03-15 15:32:46,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:46,531 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24731 transitions. [2022-03-15 15:32:46,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24731 transitions. [2022-03-15 15:32:46,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:46,541 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:46,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:46,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable733 [2022-03-15 15:32:46,541 INFO L402 AbstractCegarLoop]: === Iteration 735 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:46,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:46,542 INFO L85 PathProgramCache]: Analyzing trace with hash 498074307, now seen corresponding path program 730 times [2022-03-15 15:32:46,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:46,542 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53029039] [2022-03-15 15:32:46,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:46,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:46,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:46,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53029039] [2022-03-15 15:32:46,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53029039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:46,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:46,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:46,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295665170] [2022-03-15 15:32:46,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:46,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:46,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:46,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:46,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:46,693 INFO L87 Difference]: Start difference. First operand 5217 states and 24731 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:46,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:46,899 INFO L93 Difference]: Finished difference Result 11559 states and 51520 transitions. [2022-03-15 15:32:46,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:46,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:46,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:46,932 INFO L225 Difference]: With dead ends: 11559 [2022-03-15 15:32:46,932 INFO L226 Difference]: Without dead ends: 11036 [2022-03-15 15:32:46,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:46,932 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 168 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:46,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 208 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11036 states. [2022-03-15 15:32:47,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11036 to 5169. [2022-03-15 15:32:47,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.746710526315789) internal successors, (24531), 5168 states have internal predecessors, (24531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:47,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24531 transitions. [2022-03-15 15:32:47,067 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24531 transitions. Word has length 29 [2022-03-15 15:32:47,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:47,067 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24531 transitions. [2022-03-15 15:32:47,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:47,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24531 transitions. [2022-03-15 15:32:47,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:47,077 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:47,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:47,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable734 [2022-03-15 15:32:47,077 INFO L402 AbstractCegarLoop]: === Iteration 736 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:47,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:47,077 INFO L85 PathProgramCache]: Analyzing trace with hash 888177925, now seen corresponding path program 731 times [2022-03-15 15:32:47,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:47,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733441353] [2022-03-15 15:32:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:47,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:47,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:47,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:47,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733441353] [2022-03-15 15:32:47,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733441353] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:47,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:47,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:47,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475355319] [2022-03-15 15:32:47,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:47,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:47,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:47,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:47,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:47,246 INFO L87 Difference]: Start difference. First operand 5169 states and 24531 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:47,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:47,422 INFO L93 Difference]: Finished difference Result 11815 states and 52625 transitions. [2022-03-15 15:32:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:47,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:47,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:47,454 INFO L225 Difference]: With dead ends: 11815 [2022-03-15 15:32:47,455 INFO L226 Difference]: Without dead ends: 11273 [2022-03-15 15:32:47,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:47,455 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 186 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:47,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 214 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:47,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11273 states. [2022-03-15 15:32:47,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11273 to 5279. [2022-03-15 15:32:47,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.724516862447897) internal successors, (24936), 5278 states have internal predecessors, (24936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:47,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24936 transitions. [2022-03-15 15:32:47,596 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24936 transitions. Word has length 29 [2022-03-15 15:32:47,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:47,596 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 24936 transitions. [2022-03-15 15:32:47,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:47,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24936 transitions. [2022-03-15 15:32:47,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:47,606 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:47,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:47,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable735 [2022-03-15 15:32:47,606 INFO L402 AbstractCegarLoop]: === Iteration 737 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:47,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:47,606 INFO L85 PathProgramCache]: Analyzing trace with hash 147225827, now seen corresponding path program 732 times [2022-03-15 15:32:47,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:47,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013466964] [2022-03-15 15:32:47,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:47,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:47,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:47,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:47,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013466964] [2022-03-15 15:32:47,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013466964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:47,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:47,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:47,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012902157] [2022-03-15 15:32:47,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:47,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:47,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:47,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:47,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:47,732 INFO L87 Difference]: Start difference. First operand 5279 states and 24936 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:47,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:47,909 INFO L93 Difference]: Finished difference Result 11748 states and 52252 transitions. [2022-03-15 15:32:47,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:47,909 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:47,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:47,942 INFO L225 Difference]: With dead ends: 11748 [2022-03-15 15:32:47,942 INFO L226 Difference]: Without dead ends: 11123 [2022-03-15 15:32:47,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:47,942 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 173 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:47,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 204 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:47,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11123 states. [2022-03-15 15:32:48,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11123 to 5129. [2022-03-15 15:32:48,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.752535101404056) internal successors, (24371), 5128 states have internal predecessors, (24371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:48,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24371 transitions. [2022-03-15 15:32:48,081 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24371 transitions. Word has length 29 [2022-03-15 15:32:48,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:48,082 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24371 transitions. [2022-03-15 15:32:48,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:48,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24371 transitions. [2022-03-15 15:32:48,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:48,091 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:48,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:48,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable736 [2022-03-15 15:32:48,091 INFO L402 AbstractCegarLoop]: === Iteration 738 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:48,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:48,092 INFO L85 PathProgramCache]: Analyzing trace with hash 353658465, now seen corresponding path program 733 times [2022-03-15 15:32:48,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:48,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063213810] [2022-03-15 15:32:48,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:48,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:48,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:48,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:48,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063213810] [2022-03-15 15:32:48,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063213810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:48,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:48,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:48,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729644090] [2022-03-15 15:32:48,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:48,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:48,206 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:48,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:48,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:48,206 INFO L87 Difference]: Start difference. First operand 5129 states and 24371 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:48,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:48,380 INFO L93 Difference]: Finished difference Result 11356 states and 50703 transitions. [2022-03-15 15:32:48,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:48,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:48,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:48,414 INFO L225 Difference]: With dead ends: 11356 [2022-03-15 15:32:48,414 INFO L226 Difference]: Without dead ends: 10941 [2022-03-15 15:32:48,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:48,414 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 159 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:48,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 236 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:48,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10941 states. [2022-03-15 15:32:48,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10941 to 5201. [2022-03-15 15:32:48,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.744423076923077) internal successors, (24671), 5200 states have internal predecessors, (24671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:48,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24671 transitions. [2022-03-15 15:32:48,557 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24671 transitions. Word has length 29 [2022-03-15 15:32:48,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:48,557 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24671 transitions. [2022-03-15 15:32:48,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:48,557 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24671 transitions. [2022-03-15 15:32:48,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:48,567 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:48,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:48,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable737 [2022-03-15 15:32:48,568 INFO L402 AbstractCegarLoop]: === Iteration 739 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:48,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:48,568 INFO L85 PathProgramCache]: Analyzing trace with hash 582945475, now seen corresponding path program 734 times [2022-03-15 15:32:48,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:48,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128051438] [2022-03-15 15:32:48,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:48,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:48,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:48,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:48,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128051438] [2022-03-15 15:32:48,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128051438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:48,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:48,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:48,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118313039] [2022-03-15 15:32:48,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:48,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:48,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:48,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:48,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:48,689 INFO L87 Difference]: Start difference. First operand 5201 states and 24671 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:48,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:48,928 INFO L93 Difference]: Finished difference Result 11418 states and 50924 transitions. [2022-03-15 15:32:48,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:48,929 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:48,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:48,963 INFO L225 Difference]: With dead ends: 11418 [2022-03-15 15:32:48,964 INFO L226 Difference]: Without dead ends: 10893 [2022-03-15 15:32:48,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:48,964 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 169 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:48,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 208 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:32:48,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10893 states. [2022-03-15 15:32:49,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10893 to 5153. [2022-03-15 15:32:49,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.749805900621118) internal successors, (24471), 5152 states have internal predecessors, (24471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:49,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24471 transitions. [2022-03-15 15:32:49,117 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24471 transitions. Word has length 29 [2022-03-15 15:32:49,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:49,117 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24471 transitions. [2022-03-15 15:32:49,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:49,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24471 transitions. [2022-03-15 15:32:49,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:49,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:49,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:49,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable738 [2022-03-15 15:32:49,128 INFO L402 AbstractCegarLoop]: === Iteration 740 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:49,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:49,128 INFO L85 PathProgramCache]: Analyzing trace with hash -820301245, now seen corresponding path program 735 times [2022-03-15 15:32:49,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:49,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060505544] [2022-03-15 15:32:49,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:49,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:49,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:49,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:49,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060505544] [2022-03-15 15:32:49,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060505544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:49,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:49,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:49,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213826752] [2022-03-15 15:32:49,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:49,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:49,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:49,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:49,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:49,289 INFO L87 Difference]: Start difference. First operand 5153 states and 24471 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:49,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:49,492 INFO L93 Difference]: Finished difference Result 11354 states and 50674 transitions. [2022-03-15 15:32:49,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:49,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:49,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:49,527 INFO L225 Difference]: With dead ends: 11354 [2022-03-15 15:32:49,527 INFO L226 Difference]: Without dead ends: 10939 [2022-03-15 15:32:49,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:49,527 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 166 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:49,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 217 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:49,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2022-03-15 15:32:49,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5201. [2022-03-15 15:32:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.739807692307692) internal successors, (24647), 5200 states have internal predecessors, (24647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:49,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24647 transitions. [2022-03-15 15:32:49,678 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24647 transitions. Word has length 29 [2022-03-15 15:32:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:49,679 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24647 transitions. [2022-03-15 15:32:49,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:49,679 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24647 transitions. [2022-03-15 15:32:49,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:49,689 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:49,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:49,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable739 [2022-03-15 15:32:49,689 INFO L402 AbstractCegarLoop]: === Iteration 741 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:49,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:49,689 INFO L85 PathProgramCache]: Analyzing trace with hash -278111805, now seen corresponding path program 736 times [2022-03-15 15:32:49,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:49,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155908144] [2022-03-15 15:32:49,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:49,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:49,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:49,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:49,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155908144] [2022-03-15 15:32:49,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155908144] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:49,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:49,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:49,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878386973] [2022-03-15 15:32:49,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:49,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:49,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:49,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:49,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:49,837 INFO L87 Difference]: Start difference. First operand 5201 states and 24647 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:50,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:50,058 INFO L93 Difference]: Finished difference Result 11414 states and 50890 transitions. [2022-03-15 15:32:50,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:50,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:50,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:50,092 INFO L225 Difference]: With dead ends: 11414 [2022-03-15 15:32:50,093 INFO L226 Difference]: Without dead ends: 10891 [2022-03-15 15:32:50,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:50,093 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 151 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:50,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 244 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:50,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2022-03-15 15:32:50,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 5153. [2022-03-15 15:32:50,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.74514751552795) internal successors, (24447), 5152 states have internal predecessors, (24447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:50,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24447 transitions. [2022-03-15 15:32:50,241 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24447 transitions. Word has length 29 [2022-03-15 15:32:50,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:50,242 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24447 transitions. [2022-03-15 15:32:50,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24447 transitions. [2022-03-15 15:32:50,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:50,252 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:50,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:50,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable740 [2022-03-15 15:32:50,252 INFO L402 AbstractCegarLoop]: === Iteration 742 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:50,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:50,252 INFO L85 PathProgramCache]: Analyzing trace with hash -321024603, now seen corresponding path program 737 times [2022-03-15 15:32:50,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:50,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369213393] [2022-03-15 15:32:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:50,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:50,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:50,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:50,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369213393] [2022-03-15 15:32:50,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369213393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:50,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:50,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:50,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699206653] [2022-03-15 15:32:50,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:50,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:50,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:50,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:50,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:50,401 INFO L87 Difference]: Start difference. First operand 5153 states and 24447 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:50,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:50,582 INFO L93 Difference]: Finished difference Result 11508 states and 51335 transitions. [2022-03-15 15:32:50,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:50,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:50,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:50,614 INFO L225 Difference]: With dead ends: 11508 [2022-03-15 15:32:50,615 INFO L226 Difference]: Without dead ends: 11031 [2022-03-15 15:32:50,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:50,615 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 188 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:50,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 186 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:50,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11031 states. [2022-03-15 15:32:50,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11031 to 5231. [2022-03-15 15:32:50,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 4.730401529636711) internal successors, (24740), 5230 states have internal predecessors, (24740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:50,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 24740 transitions. [2022-03-15 15:32:50,752 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 24740 transitions. Word has length 29 [2022-03-15 15:32:50,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:50,752 INFO L470 AbstractCegarLoop]: Abstraction has 5231 states and 24740 transitions. [2022-03-15 15:32:50,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:50,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 24740 transitions. [2022-03-15 15:32:50,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:50,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:50,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:50,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable741 [2022-03-15 15:32:50,762 INFO L402 AbstractCegarLoop]: === Iteration 743 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:50,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:50,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1713169149, now seen corresponding path program 738 times [2022-03-15 15:32:50,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:50,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496212388] [2022-03-15 15:32:50,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:50,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:50,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:50,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:50,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496212388] [2022-03-15 15:32:50,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496212388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:50,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:50,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:50,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117900347] [2022-03-15 15:32:50,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:50,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:50,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:50,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:50,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:50,964 INFO L87 Difference]: Start difference. First operand 5231 states and 24740 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:51,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:51,146 INFO L93 Difference]: Finished difference Result 11506 states and 51252 transitions. [2022-03-15 15:32:51,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:51,147 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:51,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:51,185 INFO L225 Difference]: With dead ends: 11506 [2022-03-15 15:32:51,185 INFO L226 Difference]: Without dead ends: 10929 [2022-03-15 15:32:51,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:51,185 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 174 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:51,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 196 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:51,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10929 states. [2022-03-15 15:32:51,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10929 to 5129. [2022-03-15 15:32:51,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.750195007800312) internal successors, (24359), 5128 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:51,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24359 transitions. [2022-03-15 15:32:51,383 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24359 transitions. Word has length 29 [2022-03-15 15:32:51,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:51,383 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24359 transitions. [2022-03-15 15:32:51,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:51,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24359 transitions. [2022-03-15 15:32:51,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:51,393 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:51,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:51,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable742 [2022-03-15 15:32:51,393 INFO L402 AbstractCegarLoop]: === Iteration 744 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:51,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:51,394 INFO L85 PathProgramCache]: Analyzing trace with hash 234198887, now seen corresponding path program 739 times [2022-03-15 15:32:51,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:51,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327601320] [2022-03-15 15:32:51,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:51,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:51,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:51,509 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:51,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327601320] [2022-03-15 15:32:51,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327601320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:51,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:51,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:51,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697902628] [2022-03-15 15:32:51,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:51,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:51,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:51,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:51,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:51,510 INFO L87 Difference]: Start difference. First operand 5129 states and 24359 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:51,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:51,686 INFO L93 Difference]: Finished difference Result 12052 states and 53648 transitions. [2022-03-15 15:32:51,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:51,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:51,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:51,732 INFO L225 Difference]: With dead ends: 12052 [2022-03-15 15:32:51,732 INFO L226 Difference]: Without dead ends: 11510 [2022-03-15 15:32:51,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:51,732 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 180 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:51,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 199 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:51,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11510 states. [2022-03-15 15:32:51,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11510 to 5359. [2022-03-15 15:32:51,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 5358 states have (on average 4.717245240761478) internal successors, (25275), 5358 states have internal predecessors, (25275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:51,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 25275 transitions. [2022-03-15 15:32:51,915 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 25275 transitions. Word has length 29 [2022-03-15 15:32:51,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:51,915 INFO L470 AbstractCegarLoop]: Abstraction has 5359 states and 25275 transitions. [2022-03-15 15:32:51,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:51,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 25275 transitions. [2022-03-15 15:32:51,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:51,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:51,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:51,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable743 [2022-03-15 15:32:51,927 INFO L402 AbstractCegarLoop]: === Iteration 745 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:51,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:51,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1809138107, now seen corresponding path program 740 times [2022-03-15 15:32:51,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:51,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360254154] [2022-03-15 15:32:51,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:51,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:52,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:52,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:52,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360254154] [2022-03-15 15:32:52,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360254154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:52,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:52,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:52,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572447085] [2022-03-15 15:32:52,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:52,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:52,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:52,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:52,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:52,043 INFO L87 Difference]: Start difference. First operand 5359 states and 25275 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:52,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:52,229 INFO L93 Difference]: Finished difference Result 11987 states and 53279 transitions. [2022-03-15 15:32:52,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:52,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:52,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:52,268 INFO L225 Difference]: With dead ends: 11987 [2022-03-15 15:32:52,269 INFO L226 Difference]: Without dead ends: 11367 [2022-03-15 15:32:52,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:52,269 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 168 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:52,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 215 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:52,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11367 states. [2022-03-15 15:32:52,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11367 to 5216. [2022-03-15 15:32:52,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 5215 states have (on average 4.733461169702781) internal successors, (24685), 5215 states have internal predecessors, (24685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:52,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 24685 transitions. [2022-03-15 15:32:52,442 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 24685 transitions. Word has length 29 [2022-03-15 15:32:52,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:52,442 INFO L470 AbstractCegarLoop]: Abstraction has 5216 states and 24685 transitions. [2022-03-15 15:32:52,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:52,442 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 24685 transitions. [2022-03-15 15:32:52,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:52,453 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:52,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:52,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable744 [2022-03-15 15:32:52,453 INFO L402 AbstractCegarLoop]: === Iteration 746 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:52,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:52,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1881880763, now seen corresponding path program 741 times [2022-03-15 15:32:52,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:52,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883410301] [2022-03-15 15:32:52,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:52,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:52,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:52,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:52,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883410301] [2022-03-15 15:32:52,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883410301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:52,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:52,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:52,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718198896] [2022-03-15 15:32:52,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:52,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:52,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:52,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:52,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:52,565 INFO L87 Difference]: Start difference. First operand 5216 states and 24685 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:52,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:52,729 INFO L93 Difference]: Finished difference Result 12017 states and 53457 transitions. [2022-03-15 15:32:52,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:52,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:52,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:52,766 INFO L225 Difference]: With dead ends: 12017 [2022-03-15 15:32:52,767 INFO L226 Difference]: Without dead ends: 11475 [2022-03-15 15:32:52,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:52,767 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 188 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:52,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 202 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:52,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11475 states. [2022-03-15 15:32:52,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11475 to 5326. [2022-03-15 15:32:52,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5326 states, 5325 states have (on average 4.711737089201878) internal successors, (25090), 5325 states have internal predecessors, (25090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:52,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 25090 transitions. [2022-03-15 15:32:52,949 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 25090 transitions. Word has length 29 [2022-03-15 15:32:52,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:52,949 INFO L470 AbstractCegarLoop]: Abstraction has 5326 states and 25090 transitions. [2022-03-15 15:32:52,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:52,949 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 25090 transitions. [2022-03-15 15:32:52,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:52,960 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:52,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:52,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable745 [2022-03-15 15:32:52,960 INFO L402 AbstractCegarLoop]: === Iteration 747 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:52,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:52,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1326092475, now seen corresponding path program 742 times [2022-03-15 15:32:52,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:52,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313068760] [2022-03-15 15:32:52,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:52,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:53,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:53,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:53,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313068760] [2022-03-15 15:32:53,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313068760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:53,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:53,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:53,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100309940] [2022-03-15 15:32:53,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:53,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:53,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:53,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:53,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:53,076 INFO L87 Difference]: Start difference. First operand 5326 states and 25090 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:53,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:53,252 INFO L93 Difference]: Finished difference Result 11950 states and 53084 transitions. [2022-03-15 15:32:53,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:53,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:53,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:53,289 INFO L225 Difference]: With dead ends: 11950 [2022-03-15 15:32:53,290 INFO L226 Difference]: Without dead ends: 11365 [2022-03-15 15:32:53,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:53,290 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 167 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:53,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 206 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:53,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11365 states. [2022-03-15 15:32:53,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11365 to 5216. [2022-03-15 15:32:53,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 5215 states have (on average 4.722914669223394) internal successors, (24630), 5215 states have internal predecessors, (24630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:53,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 24630 transitions. [2022-03-15 15:32:53,450 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 24630 transitions. Word has length 29 [2022-03-15 15:32:53,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:53,450 INFO L470 AbstractCegarLoop]: Abstraction has 5216 states and 24630 transitions. [2022-03-15 15:32:53,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:53,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 24630 transitions. [2022-03-15 15:32:53,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:53,460 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:53,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:53,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable746 [2022-03-15 15:32:53,460 INFO L402 AbstractCegarLoop]: === Iteration 748 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:53,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:53,461 INFO L85 PathProgramCache]: Analyzing trace with hash -899533149, now seen corresponding path program 743 times [2022-03-15 15:32:53,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:53,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042899781] [2022-03-15 15:32:53,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:53,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:53,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:53,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:53,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042899781] [2022-03-15 15:32:53,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042899781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:53,624 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:53,624 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:53,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369339171] [2022-03-15 15:32:53,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:53,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:53,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:53,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:53,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:53,625 INFO L87 Difference]: Start difference. First operand 5216 states and 24630 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:53,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:53,845 INFO L93 Difference]: Finished difference Result 11855 states and 52742 transitions. [2022-03-15 15:32:53,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:53,846 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:53,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:53,881 INFO L225 Difference]: With dead ends: 11855 [2022-03-15 15:32:53,881 INFO L226 Difference]: Without dead ends: 11378 [2022-03-15 15:32:53,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:53,882 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 167 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:53,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 209 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:53,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11378 states. [2022-03-15 15:32:54,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11378 to 5294. [2022-03-15 15:32:54,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 5293 states have (on average 4.708671830719819) internal successors, (24923), 5293 states have internal predecessors, (24923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:54,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 24923 transitions. [2022-03-15 15:32:54,037 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 24923 transitions. Word has length 29 [2022-03-15 15:32:54,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:54,037 INFO L470 AbstractCegarLoop]: Abstraction has 5294 states and 24923 transitions. [2022-03-15 15:32:54,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:54,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 24923 transitions. [2022-03-15 15:32:54,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:54,047 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:54,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:54,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable747 [2022-03-15 15:32:54,048 INFO L402 AbstractCegarLoop]: === Iteration 749 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:54,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:54,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1106341115, now seen corresponding path program 744 times [2022-03-15 15:32:54,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:54,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118669416] [2022-03-15 15:32:54,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:54,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:54,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:54,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:54,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118669416] [2022-03-15 15:32:54,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118669416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:54,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:54,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:54,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017911810] [2022-03-15 15:32:54,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:54,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:54,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:54,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:54,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:54,222 INFO L87 Difference]: Start difference. First operand 5294 states and 24923 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:54,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:54,434 INFO L93 Difference]: Finished difference Result 11853 states and 52659 transitions. [2022-03-15 15:32:54,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:54,434 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:54,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:54,469 INFO L225 Difference]: With dead ends: 11853 [2022-03-15 15:32:54,469 INFO L226 Difference]: Without dead ends: 11177 [2022-03-15 15:32:54,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:54,470 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 179 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:54,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 196 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:54,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11177 states. [2022-03-15 15:32:54,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11177 to 5093. [2022-03-15 15:32:54,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.757855459544383) internal successors, (24227), 5092 states have internal predecessors, (24227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:54,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24227 transitions. [2022-03-15 15:32:54,625 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24227 transitions. Word has length 29 [2022-03-15 15:32:54,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:54,625 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24227 transitions. [2022-03-15 15:32:54,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:54,625 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24227 transitions. [2022-03-15 15:32:54,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:54,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:54,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:54,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable748 [2022-03-15 15:32:54,635 INFO L402 AbstractCegarLoop]: === Iteration 750 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:54,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:54,635 INFO L85 PathProgramCache]: Analyzing trace with hash 2059903109, now seen corresponding path program 745 times [2022-03-15 15:32:54,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:54,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945739105] [2022-03-15 15:32:54,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:54,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:54,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:54,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:54,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945739105] [2022-03-15 15:32:54,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945739105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:54,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:54,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:54,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695300726] [2022-03-15 15:32:54,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:54,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:54,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:54,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:54,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:54,829 INFO L87 Difference]: Start difference. First operand 5093 states and 24227 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:55,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:55,058 INFO L93 Difference]: Finished difference Result 11454 states and 51040 transitions. [2022-03-15 15:32:55,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:55,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:55,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:55,093 INFO L225 Difference]: With dead ends: 11454 [2022-03-15 15:32:55,093 INFO L226 Difference]: Without dead ends: 11039 [2022-03-15 15:32:55,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:55,093 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 173 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:55,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 228 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:55,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11039 states. [2022-03-15 15:32:55,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11039 to 5253. [2022-03-15 15:32:55,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.7484767707539985) internal successors, (24939), 5252 states have internal predecessors, (24939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:55,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24939 transitions. [2022-03-15 15:32:55,249 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24939 transitions. Word has length 29 [2022-03-15 15:32:55,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:55,249 INFO L470 AbstractCegarLoop]: Abstraction has 5253 states and 24939 transitions. [2022-03-15 15:32:55,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:55,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24939 transitions. [2022-03-15 15:32:55,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:55,259 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:55,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:55,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable749 [2022-03-15 15:32:55,259 INFO L402 AbstractCegarLoop]: === Iteration 751 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:55,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:55,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1074699079, now seen corresponding path program 746 times [2022-03-15 15:32:55,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:55,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636817994] [2022-03-15 15:32:55,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:55,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:55,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:55,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:55,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636817994] [2022-03-15 15:32:55,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636817994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:55,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:55,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:55,397 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145162125] [2022-03-15 15:32:55,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:55,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:55,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:55,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:55,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:55,397 INFO L87 Difference]: Start difference. First operand 5253 states and 24939 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:55,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:55,570 INFO L93 Difference]: Finished difference Result 11581 states and 51519 transitions. [2022-03-15 15:32:55,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:55,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:55,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:55,606 INFO L225 Difference]: With dead ends: 11581 [2022-03-15 15:32:55,606 INFO L226 Difference]: Without dead ends: 10959 [2022-03-15 15:32:55,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:55,607 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 176 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:55,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 208 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:55,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10959 states. [2022-03-15 15:32:55,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10959 to 5173. [2022-03-15 15:32:55,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.752320185614849) internal successors, (24579), 5172 states have internal predecessors, (24579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:55,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24579 transitions. [2022-03-15 15:32:55,765 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24579 transitions. Word has length 29 [2022-03-15 15:32:55,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:55,766 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24579 transitions. [2022-03-15 15:32:55,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:55,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24579 transitions. [2022-03-15 15:32:55,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:55,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:55,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:55,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable750 [2022-03-15 15:32:55,776 INFO L402 AbstractCegarLoop]: === Iteration 752 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:55,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:55,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1840101253, now seen corresponding path program 747 times [2022-03-15 15:32:55,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:55,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848412068] [2022-03-15 15:32:55,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:55,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:55,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:55,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:55,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848412068] [2022-03-15 15:32:55,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848412068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:55,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:55,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:55,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493265260] [2022-03-15 15:32:55,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:55,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:55,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:55,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:55,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:55,939 INFO L87 Difference]: Start difference. First operand 5173 states and 24579 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:56,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:56,152 INFO L93 Difference]: Finished difference Result 11357 states and 50598 transitions. [2022-03-15 15:32:56,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:56,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:56,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:56,188 INFO L225 Difference]: With dead ends: 11357 [2022-03-15 15:32:56,188 INFO L226 Difference]: Without dead ends: 10942 [2022-03-15 15:32:56,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:56,189 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 170 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:56,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 213 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:56,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10942 states. [2022-03-15 15:32:56,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10942 to 5221. [2022-03-15 15:32:56,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.742337164750958) internal successors, (24755), 5220 states have internal predecessors, (24755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:56,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24755 transitions. [2022-03-15 15:32:56,352 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24755 transitions. Word has length 29 [2022-03-15 15:32:56,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:56,352 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24755 transitions. [2022-03-15 15:32:56,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:56,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24755 transitions. [2022-03-15 15:32:56,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:56,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:56,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:56,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable751 [2022-03-15 15:32:56,363 INFO L402 AbstractCegarLoop]: === Iteration 753 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:56,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:56,364 INFO L85 PathProgramCache]: Analyzing trace with hash 2069388263, now seen corresponding path program 748 times [2022-03-15 15:32:56,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:56,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184230828] [2022-03-15 15:32:56,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:56,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:56,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:56,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:56,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184230828] [2022-03-15 15:32:56,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184230828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:56,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:56,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:56,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616674495] [2022-03-15 15:32:56,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:56,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:56,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:56,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:56,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:56,489 INFO L87 Difference]: Start difference. First operand 5221 states and 24755 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:56,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:56,683 INFO L93 Difference]: Finished difference Result 11419 states and 50819 transitions. [2022-03-15 15:32:56,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:56,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:56,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:56,715 INFO L225 Difference]: With dead ends: 11419 [2022-03-15 15:32:56,715 INFO L226 Difference]: Without dead ends: 10894 [2022-03-15 15:32:56,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:56,716 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 164 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:56,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 212 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:56,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2022-03-15 15:32:56,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 5173. [2022-03-15 15:32:56,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.747679814385151) internal successors, (24555), 5172 states have internal predecessors, (24555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:56,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24555 transitions. [2022-03-15 15:32:56,850 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24555 transitions. Word has length 29 [2022-03-15 15:32:56,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:56,851 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24555 transitions. [2022-03-15 15:32:56,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:56,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24555 transitions. [2022-03-15 15:32:56,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:56,860 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:56,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:56,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable752 [2022-03-15 15:32:56,860 INFO L402 AbstractCegarLoop]: === Iteration 754 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:56,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:56,861 INFO L85 PathProgramCache]: Analyzing trace with hash -491078103, now seen corresponding path program 749 times [2022-03-15 15:32:56,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:56,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493104181] [2022-03-15 15:32:56,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:56,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:57,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:57,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:57,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493104181] [2022-03-15 15:32:57,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493104181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:57,020 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:57,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:57,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501147524] [2022-03-15 15:32:57,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:57,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:57,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:57,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:57,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:57,020 INFO L87 Difference]: Start difference. First operand 5173 states and 24555 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:57,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:57,277 INFO L93 Difference]: Finished difference Result 11706 states and 52034 transitions. [2022-03-15 15:32:57,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:57,278 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:57,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:57,310 INFO L225 Difference]: With dead ends: 11706 [2022-03-15 15:32:57,310 INFO L226 Difference]: Without dead ends: 11164 [2022-03-15 15:32:57,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:57,311 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 158 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:57,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 257 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:32:57,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11164 states. [2022-03-15 15:32:57,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11164 to 5316. [2022-03-15 15:32:57,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5316 states, 5315 states have (on average 4.717591721542804) internal successors, (25074), 5315 states have internal predecessors, (25074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:57,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5316 states to 5316 states and 25074 transitions. [2022-03-15 15:32:57,451 INFO L78 Accepts]: Start accepts. Automaton has 5316 states and 25074 transitions. Word has length 29 [2022-03-15 15:32:57,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:57,451 INFO L470 AbstractCegarLoop]: Abstraction has 5316 states and 25074 transitions. [2022-03-15 15:32:57,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:57,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5316 states and 25074 transitions. [2022-03-15 15:32:57,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:57,461 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:57,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:57,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable753 [2022-03-15 15:32:57,461 INFO L402 AbstractCegarLoop]: === Iteration 755 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:57,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:57,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1760552199, now seen corresponding path program 750 times [2022-03-15 15:32:57,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:57,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525763965] [2022-03-15 15:32:57,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:57,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:57,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:57,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:57,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525763965] [2022-03-15 15:32:57,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525763965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:57,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:57,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:57,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26004414] [2022-03-15 15:32:57,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:57,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:57,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:57,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:57,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:57,627 INFO L87 Difference]: Start difference. First operand 5316 states and 25074 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:57,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:57,855 INFO L93 Difference]: Finished difference Result 11641 states and 51665 transitions. [2022-03-15 15:32:57,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:57,855 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:57,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:57,889 INFO L225 Difference]: With dead ends: 11641 [2022-03-15 15:32:57,889 INFO L226 Difference]: Without dead ends: 10965 [2022-03-15 15:32:57,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:57,889 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 158 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:57,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 232 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:57,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10965 states. [2022-03-15 15:32:58,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10965 to 5117. [2022-03-15 15:32:58,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.755082095387021) internal successors, (24327), 5116 states have internal predecessors, (24327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:58,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24327 transitions. [2022-03-15 15:32:58,076 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24327 transitions. Word has length 29 [2022-03-15 15:32:58,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:58,076 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24327 transitions. [2022-03-15 15:32:58,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:58,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24327 transitions. [2022-03-15 15:32:58,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:58,085 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:58,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:58,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable754 [2022-03-15 15:32:58,085 INFO L402 AbstractCegarLoop]: === Iteration 756 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:58,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:58,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1251370245, now seen corresponding path program 751 times [2022-03-15 15:32:58,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:58,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370915227] [2022-03-15 15:32:58,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:58,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:58,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:58,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:58,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370915227] [2022-03-15 15:32:58,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370915227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:58,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:58,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:58,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838756640] [2022-03-15 15:32:58,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:58,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:58,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:58,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:58,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:58,202 INFO L87 Difference]: Start difference. First operand 5117 states and 24327 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:58,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:58,421 INFO L93 Difference]: Finished difference Result 11289 states and 50297 transitions. [2022-03-15 15:32:58,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:58,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:58,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:58,452 INFO L225 Difference]: With dead ends: 11289 [2022-03-15 15:32:58,452 INFO L226 Difference]: Without dead ends: 10874 [2022-03-15 15:32:58,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:58,452 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 165 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:58,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 232 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:58,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10874 states. [2022-03-15 15:32:58,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10874 to 5229. [2022-03-15 15:32:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.745026778882938) internal successors, (24807), 5228 states have internal predecessors, (24807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:58,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24807 transitions. [2022-03-15 15:32:58,592 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24807 transitions. Word has length 29 [2022-03-15 15:32:58,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:58,592 INFO L470 AbstractCegarLoop]: Abstraction has 5229 states and 24807 transitions. [2022-03-15 15:32:58,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:58,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24807 transitions. [2022-03-15 15:32:58,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:58,602 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:58,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:58,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable755 [2022-03-15 15:32:58,602 INFO L402 AbstractCegarLoop]: === Iteration 757 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:58,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:58,602 INFO L85 PathProgramCache]: Analyzing trace with hash 266166215, now seen corresponding path program 752 times [2022-03-15 15:32:58,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:58,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659522229] [2022-03-15 15:32:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:58,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:58,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:58,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:58,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659522229] [2022-03-15 15:32:58,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659522229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:58,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:58,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:58,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060579134] [2022-03-15 15:32:58,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:58,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:58,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:58,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:58,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:58,715 INFO L87 Difference]: Start difference. First operand 5229 states and 24807 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:58,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:58,886 INFO L93 Difference]: Finished difference Result 11416 states and 50776 transitions. [2022-03-15 15:32:58,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:58,886 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:58,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:58,917 INFO L225 Difference]: With dead ends: 11416 [2022-03-15 15:32:58,918 INFO L226 Difference]: Without dead ends: 10794 [2022-03-15 15:32:58,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:58,918 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 168 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:58,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 223 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:58,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2022-03-15 15:32:59,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 5149. [2022-03-15 15:32:59,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.7503885003885005) internal successors, (24455), 5148 states have internal predecessors, (24455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:59,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24455 transitions. [2022-03-15 15:32:59,050 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24455 transitions. Word has length 29 [2022-03-15 15:32:59,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:59,050 INFO L470 AbstractCegarLoop]: Abstraction has 5149 states and 24455 transitions. [2022-03-15 15:32:59,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:59,050 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24455 transitions. [2022-03-15 15:32:59,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:59,060 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:59,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:59,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable756 [2022-03-15 15:32:59,060 INFO L402 AbstractCegarLoop]: === Iteration 758 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:59,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:59,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1336158243, now seen corresponding path program 753 times [2022-03-15 15:32:59,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:59,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995524580] [2022-03-15 15:32:59,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:59,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:59,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:59,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:59,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995524580] [2022-03-15 15:32:59,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995524580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:59,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:59,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:59,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488807831] [2022-03-15 15:32:59,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:59,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:59,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:59,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:59,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:59,205 INFO L87 Difference]: Start difference. First operand 5149 states and 24455 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:59,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:59,418 INFO L93 Difference]: Finished difference Result 11114 states and 49514 transitions. [2022-03-15 15:32:59,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:59,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:59,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:59,449 INFO L225 Difference]: With dead ends: 11114 [2022-03-15 15:32:59,449 INFO L226 Difference]: Without dead ends: 10699 [2022-03-15 15:32:59,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:59,449 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 150 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:59,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 256 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:59,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10699 states. [2022-03-15 15:32:59,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10699 to 5181. [2022-03-15 15:32:59,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 5180 states have (on average 4.742664092664093) internal successors, (24567), 5180 states have internal predecessors, (24567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:59,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 24567 transitions. [2022-03-15 15:32:59,584 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 24567 transitions. Word has length 29 [2022-03-15 15:32:59,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:32:59,585 INFO L470 AbstractCegarLoop]: Abstraction has 5181 states and 24567 transitions. [2022-03-15 15:32:59,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:59,585 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 24567 transitions. [2022-03-15 15:32:59,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:32:59,595 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:32:59,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:32:59,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable757 [2022-03-15 15:32:59,595 INFO L402 AbstractCegarLoop]: === Iteration 759 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:32:59,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:32:59,595 INFO L85 PathProgramCache]: Analyzing trace with hash 2003624157, now seen corresponding path program 754 times [2022-03-15 15:32:59,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:32:59,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652650761] [2022-03-15 15:32:59,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:32:59,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:32:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:32:59,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:32:59,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:32:59,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652650761] [2022-03-15 15:32:59,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652650761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:32:59,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:32:59,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:32:59,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880411402] [2022-03-15 15:32:59,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:32:59,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:32:59,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:32:59,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:32:59,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:32:59,706 INFO L87 Difference]: Start difference. First operand 5181 states and 24567 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:32:59,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:32:59,887 INFO L93 Difference]: Finished difference Result 11114 states and 49482 transitions. [2022-03-15 15:32:59,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:32:59,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:32:59,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:32:59,923 INFO L225 Difference]: With dead ends: 11114 [2022-03-15 15:32:59,924 INFO L226 Difference]: Without dead ends: 10667 [2022-03-15 15:32:59,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:32:59,924 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 156 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:32:59,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 243 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:32:59,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10667 states. [2022-03-15 15:33:00,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10667 to 5149. [2022-03-15 15:33:00,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.747280497280498) internal successors, (24439), 5148 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:00,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24439 transitions. [2022-03-15 15:33:00,097 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24439 transitions. Word has length 29 [2022-03-15 15:33:00,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:00,097 INFO L470 AbstractCegarLoop]: Abstraction has 5149 states and 24439 transitions. [2022-03-15 15:33:00,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:00,097 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24439 transitions. [2022-03-15 15:33:00,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:00,108 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:00,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:00,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable758 [2022-03-15 15:33:00,108 INFO L402 AbstractCegarLoop]: === Iteration 760 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:00,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:00,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1119538301, now seen corresponding path program 755 times [2022-03-15 15:33:00,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:00,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839832754] [2022-03-15 15:33:00,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:00,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:00,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:00,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:00,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839832754] [2022-03-15 15:33:00,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839832754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:00,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:00,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:00,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229517643] [2022-03-15 15:33:00,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:00,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:00,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:00,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:00,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:00,221 INFO L87 Difference]: Start difference. First operand 5149 states and 24439 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:00,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:00,373 INFO L93 Difference]: Finished difference Result 11416 states and 50776 transitions. [2022-03-15 15:33:00,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:00,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:00,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:00,405 INFO L225 Difference]: With dead ends: 11416 [2022-03-15 15:33:00,406 INFO L226 Difference]: Without dead ends: 10874 [2022-03-15 15:33:00,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:00,406 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 179 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:00,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 200 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:00,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10874 states. [2022-03-15 15:33:00,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10874 to 5229. [2022-03-15 15:33:00,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.729724560061209) internal successors, (24727), 5228 states have internal predecessors, (24727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24727 transitions. [2022-03-15 15:33:00,543 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24727 transitions. Word has length 29 [2022-03-15 15:33:00,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:00,543 INFO L470 AbstractCegarLoop]: Abstraction has 5229 states and 24727 transitions. [2022-03-15 15:33:00,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:00,543 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24727 transitions. [2022-03-15 15:33:00,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:00,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:00,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:00,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable759 [2022-03-15 15:33:00,553 INFO L402 AbstractCegarLoop]: === Iteration 761 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:00,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:00,553 INFO L85 PathProgramCache]: Analyzing trace with hash 912730335, now seen corresponding path program 756 times [2022-03-15 15:33:00,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:00,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552119422] [2022-03-15 15:33:00,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:00,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:00,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:00,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:00,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552119422] [2022-03-15 15:33:00,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552119422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:00,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:00,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:00,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018312360] [2022-03-15 15:33:00,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:00,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:00,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:00,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:00,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:00,721 INFO L87 Difference]: Start difference. First operand 5229 states and 24727 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:00,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:00,910 INFO L93 Difference]: Finished difference Result 11289 states and 50169 transitions. [2022-03-15 15:33:00,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:00,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:00,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:00,945 INFO L225 Difference]: With dead ends: 11289 [2022-03-15 15:33:00,945 INFO L226 Difference]: Without dead ends: 10762 [2022-03-15 15:33:00,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:00,945 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:00,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 207 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:00,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10762 states. [2022-03-15 15:33:01,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10762 to 5117. [2022-03-15 15:33:01,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.751954652071931) internal successors, (24311), 5116 states have internal predecessors, (24311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:01,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24311 transitions. [2022-03-15 15:33:01,091 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24311 transitions. Word has length 29 [2022-03-15 15:33:01,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:01,091 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24311 transitions. [2022-03-15 15:33:01,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:01,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24311 transitions. [2022-03-15 15:33:01,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:01,102 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:01,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:01,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable760 [2022-03-15 15:33:01,102 INFO L402 AbstractCegarLoop]: === Iteration 762 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:01,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:01,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1772654813, now seen corresponding path program 757 times [2022-03-15 15:33:01,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:01,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650475399] [2022-03-15 15:33:01,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:01,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:01,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:01,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:01,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650475399] [2022-03-15 15:33:01,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650475399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:01,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:01,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:01,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977667424] [2022-03-15 15:33:01,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:01,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:01,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:01,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:01,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:01,217 INFO L87 Difference]: Start difference. First operand 5117 states and 24311 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:01,401 INFO L93 Difference]: Finished difference Result 11047 states and 49253 transitions. [2022-03-15 15:33:01,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:01,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:01,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:01,432 INFO L225 Difference]: With dead ends: 11047 [2022-03-15 15:33:01,432 INFO L226 Difference]: Without dead ends: 10632 [2022-03-15 15:33:01,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:01,432 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 151 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:01,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 245 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:01,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10632 states. [2022-03-15 15:33:01,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10632 to 5181. [2022-03-15 15:33:01,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 5180 states have (on average 4.742664092664093) internal successors, (24567), 5180 states have internal predecessors, (24567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:01,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 24567 transitions. [2022-03-15 15:33:01,567 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 24567 transitions. Word has length 29 [2022-03-15 15:33:01,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:01,568 INFO L470 AbstractCegarLoop]: Abstraction has 5181 states and 24567 transitions. [2022-03-15 15:33:01,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:01,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 24567 transitions. [2022-03-15 15:33:01,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:01,578 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:01,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:01,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable761 [2022-03-15 15:33:01,578 INFO L402 AbstractCegarLoop]: === Iteration 763 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:01,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:01,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1543367803, now seen corresponding path program 758 times [2022-03-15 15:33:01,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:01,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712066414] [2022-03-15 15:33:01,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:01,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:01,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:01,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:01,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712066414] [2022-03-15 15:33:01,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712066414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:01,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:01,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:01,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995492499] [2022-03-15 15:33:01,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:01,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:01,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:01,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:01,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:01,708 INFO L87 Difference]: Start difference. First operand 5181 states and 24567 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:01,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:01,877 INFO L93 Difference]: Finished difference Result 11109 states and 49474 transitions. [2022-03-15 15:33:01,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:01,877 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:01,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:01,909 INFO L225 Difference]: With dead ends: 11109 [2022-03-15 15:33:01,909 INFO L226 Difference]: Without dead ends: 10584 [2022-03-15 15:33:01,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:01,909 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 196 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:01,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 190 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:01,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10584 states. [2022-03-15 15:33:02,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10584 to 5133. [2022-03-15 15:33:02,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 4.749610288386594) internal successors, (24375), 5132 states have internal predecessors, (24375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:02,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 24375 transitions. [2022-03-15 15:33:02,041 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 24375 transitions. Word has length 29 [2022-03-15 15:33:02,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:02,042 INFO L470 AbstractCegarLoop]: Abstraction has 5133 states and 24375 transitions. [2022-03-15 15:33:02,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:02,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 24375 transitions. [2022-03-15 15:33:02,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:02,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:02,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:02,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable762 [2022-03-15 15:33:02,051 INFO L402 AbstractCegarLoop]: === Iteration 764 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:02,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:02,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2041410437, now seen corresponding path program 759 times [2022-03-15 15:33:02,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:02,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401798298] [2022-03-15 15:33:02,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:02,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:02,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:02,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:02,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401798298] [2022-03-15 15:33:02,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401798298] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:02,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:02,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:02,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664740898] [2022-03-15 15:33:02,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:02,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:02,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:02,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:02,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:02,182 INFO L87 Difference]: Start difference. First operand 5133 states and 24375 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:02,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:02,409 INFO L93 Difference]: Finished difference Result 10969 states and 48888 transitions. [2022-03-15 15:33:02,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:02,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:02,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:02,440 INFO L225 Difference]: With dead ends: 10969 [2022-03-15 15:33:02,440 INFO L226 Difference]: Without dead ends: 10554 [2022-03-15 15:33:02,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:02,441 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 160 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:02,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 250 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:02,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10554 states. [2022-03-15 15:33:02,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10554 to 5165. [2022-03-15 15:33:02,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.741866769945778) internal successors, (24487), 5164 states have internal predecessors, (24487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24487 transitions. [2022-03-15 15:33:02,572 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24487 transitions. Word has length 29 [2022-03-15 15:33:02,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:02,572 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24487 transitions. [2022-03-15 15:33:02,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:02,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24487 transitions. [2022-03-15 15:33:02,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:02,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:02,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:02,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable763 [2022-03-15 15:33:02,582 INFO L402 AbstractCegarLoop]: === Iteration 765 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:02,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:02,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1227438045, now seen corresponding path program 760 times [2022-03-15 15:33:02,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:02,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771579288] [2022-03-15 15:33:02,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:02,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:02,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:02,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:02,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771579288] [2022-03-15 15:33:02,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771579288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:02,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:02,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:02,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000432833] [2022-03-15 15:33:02,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:02,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:02,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:02,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:02,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:02,748 INFO L87 Difference]: Start difference. First operand 5165 states and 24487 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:02,956 INFO L93 Difference]: Finished difference Result 10969 states and 48856 transitions. [2022-03-15 15:33:02,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:02,957 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:02,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:02,987 INFO L225 Difference]: With dead ends: 10969 [2022-03-15 15:33:02,987 INFO L226 Difference]: Without dead ends: 10522 [2022-03-15 15:33:02,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:02,987 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 163 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:02,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 212 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:03,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10522 states. [2022-03-15 15:33:03,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10522 to 5133. [2022-03-15 15:33:03,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 4.746492595479345) internal successors, (24359), 5132 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:03,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 24359 transitions. [2022-03-15 15:33:03,124 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 24359 transitions. Word has length 29 [2022-03-15 15:33:03,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:03,124 INFO L470 AbstractCegarLoop]: Abstraction has 5133 states and 24359 transitions. [2022-03-15 15:33:03,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:03,124 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 24359 transitions. [2022-03-15 15:33:03,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:03,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:03,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:03,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable764 [2022-03-15 15:33:03,134 INFO L402 AbstractCegarLoop]: === Iteration 766 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:03,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:03,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1363133533, now seen corresponding path program 761 times [2022-03-15 15:33:03,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:03,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210289382] [2022-03-15 15:33:03,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:03,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:03,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:03,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:03,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210289382] [2022-03-15 15:33:03,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210289382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:03,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:03,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:03,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143568276] [2022-03-15 15:33:03,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:03,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:03,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:03,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:03,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:03,284 INFO L87 Difference]: Start difference. First operand 5133 states and 24359 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:03,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:03,481 INFO L93 Difference]: Finished difference Result 11109 states and 49490 transitions. [2022-03-15 15:33:03,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:03,482 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:03,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:03,511 INFO L225 Difference]: With dead ends: 11109 [2022-03-15 15:33:03,512 INFO L226 Difference]: Without dead ends: 10632 [2022-03-15 15:33:03,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:03,512 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 146 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:03,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 224 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:03,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10632 states. [2022-03-15 15:33:03,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10632 to 5181. [2022-03-15 15:33:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 5180 states have (on average 4.736486486486487) internal successors, (24535), 5180 states have internal predecessors, (24535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:03,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 24535 transitions. [2022-03-15 15:33:03,643 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 24535 transitions. Word has length 29 [2022-03-15 15:33:03,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:03,643 INFO L470 AbstractCegarLoop]: Abstraction has 5181 states and 24535 transitions. [2022-03-15 15:33:03,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:03,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 24535 transitions. [2022-03-15 15:33:03,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:03,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:03,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:03,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable765 [2022-03-15 15:33:03,654 INFO L402 AbstractCegarLoop]: === Iteration 767 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:03,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:03,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1850771137, now seen corresponding path program 762 times [2022-03-15 15:33:03,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:03,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324773284] [2022-03-15 15:33:03,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:03,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:03,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:03,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:03,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324773284] [2022-03-15 15:33:03,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324773284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:03,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:03,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:03,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332917549] [2022-03-15 15:33:03,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:03,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:03,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:03,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:03,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:03,894 INFO L87 Difference]: Start difference. First operand 5181 states and 24535 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:04,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:04,095 INFO L93 Difference]: Finished difference Result 11047 states and 49173 transitions. [2022-03-15 15:33:04,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:04,095 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:04,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:04,128 INFO L225 Difference]: With dead ends: 11047 [2022-03-15 15:33:04,129 INFO L226 Difference]: Without dead ends: 10568 [2022-03-15 15:33:04,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:04,129 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 153 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:04,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 234 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:04,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10568 states. [2022-03-15 15:33:04,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10568 to 5117. [2022-03-15 15:33:04,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.750390930414386) internal successors, (24303), 5116 states have internal predecessors, (24303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:04,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24303 transitions. [2022-03-15 15:33:04,276 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24303 transitions. Word has length 29 [2022-03-15 15:33:04,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:04,276 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24303 transitions. [2022-03-15 15:33:04,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:04,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24303 transitions. [2022-03-15 15:33:04,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:04,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:04,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:04,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable766 [2022-03-15 15:33:04,287 INFO L402 AbstractCegarLoop]: === Iteration 768 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:04,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:04,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1929568131, now seen corresponding path program 763 times [2022-03-15 15:33:04,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:04,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791875424] [2022-03-15 15:33:04,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:04,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:04,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:04,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:04,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791875424] [2022-03-15 15:33:04,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791875424] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:04,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:04,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:04,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68436518] [2022-03-15 15:33:04,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:04,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:04,458 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:04,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:04,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:04,458 INFO L87 Difference]: Start difference. First operand 5117 states and 24303 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:04,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:04,725 INFO L93 Difference]: Finished difference Result 11706 states and 52050 transitions. [2022-03-15 15:33:04,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:04,725 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:04,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:04,766 INFO L225 Difference]: With dead ends: 11706 [2022-03-15 15:33:04,766 INFO L226 Difference]: Without dead ends: 11164 [2022-03-15 15:33:04,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:04,767 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 166 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:04,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 219 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:04,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11164 states. [2022-03-15 15:33:04,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11164 to 5316. [2022-03-15 15:33:04,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5316 states, 5315 states have (on average 4.720602069614299) internal successors, (25090), 5315 states have internal predecessors, (25090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:04,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5316 states to 5316 states and 25090 transitions. [2022-03-15 15:33:04,929 INFO L78 Accepts]: Start accepts. Automaton has 5316 states and 25090 transitions. Word has length 29 [2022-03-15 15:33:04,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:04,929 INFO L470 AbstractCegarLoop]: Abstraction has 5316 states and 25090 transitions. [2022-03-15 15:33:04,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:04,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5316 states and 25090 transitions. [2022-03-15 15:33:04,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:04,940 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:04,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:04,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable767 [2022-03-15 15:33:04,940 INFO L402 AbstractCegarLoop]: === Iteration 769 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:04,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:04,940 INFO L85 PathProgramCache]: Analyzing trace with hash -848505505, now seen corresponding path program 764 times [2022-03-15 15:33:04,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:04,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355326675] [2022-03-15 15:33:04,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:04,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:05,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:05,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:05,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355326675] [2022-03-15 15:33:05,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355326675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:05,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:05,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:05,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244084238] [2022-03-15 15:33:05,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:05,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:05,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:05,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:05,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:05,085 INFO L87 Difference]: Start difference. First operand 5316 states and 25090 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:05,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:05,340 INFO L93 Difference]: Finished difference Result 11641 states and 51681 transitions. [2022-03-15 15:33:05,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:05,340 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:05,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:05,377 INFO L225 Difference]: With dead ends: 11641 [2022-03-15 15:33:05,377 INFO L226 Difference]: Without dead ends: 11021 [2022-03-15 15:33:05,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:05,378 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 171 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:05,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 216 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:05,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11021 states. [2022-03-15 15:33:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11021 to 5173. [2022-03-15 15:33:05,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.739945862335653) internal successors, (24515), 5172 states have internal predecessors, (24515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:05,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24515 transitions. [2022-03-15 15:33:05,543 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24515 transitions. Word has length 29 [2022-03-15 15:33:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:05,544 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24515 transitions. [2022-03-15 15:33:05,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:05,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24515 transitions. [2022-03-15 15:33:05,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:05,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:05,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:05,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable768 [2022-03-15 15:33:05,554 INFO L402 AbstractCegarLoop]: === Iteration 770 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:05,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:05,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1884497119, now seen corresponding path program 765 times [2022-03-15 15:33:05,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:05,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672532722] [2022-03-15 15:33:05,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:05,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:05,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:05,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:05,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672532722] [2022-03-15 15:33:05,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672532722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:05,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:05,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:05,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693984663] [2022-03-15 15:33:05,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:05,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:05,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:05,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:05,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:05,660 INFO L87 Difference]: Start difference. First operand 5173 states and 24515 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:05,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:05,835 INFO L93 Difference]: Finished difference Result 11581 states and 51463 transitions. [2022-03-15 15:33:05,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:05,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:05,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:05,874 INFO L225 Difference]: With dead ends: 11581 [2022-03-15 15:33:05,874 INFO L226 Difference]: Without dead ends: 11039 [2022-03-15 15:33:05,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:05,874 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 153 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:05,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 233 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:05,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11039 states. [2022-03-15 15:33:06,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11039 to 5253. [2022-03-15 15:33:06,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.722581873571973) internal successors, (24803), 5252 states have internal predecessors, (24803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:06,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24803 transitions. [2022-03-15 15:33:06,050 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24803 transitions. Word has length 29 [2022-03-15 15:33:06,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:06,050 INFO L470 AbstractCegarLoop]: Abstraction has 5253 states and 24803 transitions. [2022-03-15 15:33:06,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:06,050 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24803 transitions. [2022-03-15 15:33:06,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:06,061 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:06,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:06,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable769 [2022-03-15 15:33:06,061 INFO L402 AbstractCegarLoop]: === Iteration 771 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:06,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:06,062 INFO L85 PathProgramCache]: Analyzing trace with hash 196250847, now seen corresponding path program 766 times [2022-03-15 15:33:06,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:06,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755697099] [2022-03-15 15:33:06,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:06,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:06,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:06,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:06,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755697099] [2022-03-15 15:33:06,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755697099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:06,167 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:06,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:06,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941517199] [2022-03-15 15:33:06,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:06,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:06,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:06,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:06,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:06,167 INFO L87 Difference]: Start difference. First operand 5253 states and 24803 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:06,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:06,366 INFO L93 Difference]: Finished difference Result 11454 states and 50856 transitions. [2022-03-15 15:33:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:06,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:06,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:06,402 INFO L225 Difference]: With dead ends: 11454 [2022-03-15 15:33:06,403 INFO L226 Difference]: Without dead ends: 10959 [2022-03-15 15:33:06,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:06,403 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 153 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:06,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 261 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:06,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10959 states. [2022-03-15 15:33:06,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10959 to 5173. [2022-03-15 15:33:06,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.732211910286156) internal successors, (24475), 5172 states have internal predecessors, (24475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:06,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24475 transitions. [2022-03-15 15:33:06,562 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24475 transitions. Word has length 29 [2022-03-15 15:33:06,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:06,562 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24475 transitions. [2022-03-15 15:33:06,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:06,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24475 transitions. [2022-03-15 15:33:06,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:06,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:06,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:06,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable770 [2022-03-15 15:33:06,573 INFO L402 AbstractCegarLoop]: === Iteration 772 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:06,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:06,573 INFO L85 PathProgramCache]: Analyzing trace with hash -2022465215, now seen corresponding path program 767 times [2022-03-15 15:33:06,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:06,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303637846] [2022-03-15 15:33:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:06,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:06,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:06,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:06,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303637846] [2022-03-15 15:33:06,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303637846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:06,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:06,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:06,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053950623] [2022-03-15 15:33:06,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:06,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:06,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:06,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:06,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:06,743 INFO L87 Difference]: Start difference. First operand 5173 states and 24475 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:06,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:06,966 INFO L93 Difference]: Finished difference Result 11419 states and 50763 transitions. [2022-03-15 15:33:06,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:06,967 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:06,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:07,000 INFO L225 Difference]: With dead ends: 11419 [2022-03-15 15:33:07,000 INFO L226 Difference]: Without dead ends: 10942 [2022-03-15 15:33:07,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:07,000 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 165 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:07,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 208 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:07,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10942 states. [2022-03-15 15:33:07,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10942 to 5221. [2022-03-15 15:33:07,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.722413793103448) internal successors, (24651), 5220 states have internal predecessors, (24651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:07,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24651 transitions. [2022-03-15 15:33:07,141 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24651 transitions. Word has length 29 [2022-03-15 15:33:07,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:07,141 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24651 transitions. [2022-03-15 15:33:07,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:07,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24651 transitions. [2022-03-15 15:33:07,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:07,151 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:07,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:07,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable771 [2022-03-15 15:33:07,151 INFO L402 AbstractCegarLoop]: === Iteration 773 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:07,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:07,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1425705119, now seen corresponding path program 768 times [2022-03-15 15:33:07,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:07,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622109052] [2022-03-15 15:33:07,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:07,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:07,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:07,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622109052] [2022-03-15 15:33:07,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622109052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:07,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:07,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:07,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526882652] [2022-03-15 15:33:07,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:07,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:07,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:07,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:07,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:07,320 INFO L87 Difference]: Start difference. First operand 5221 states and 24651 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:07,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:07,552 INFO L93 Difference]: Finished difference Result 11357 states and 50446 transitions. [2022-03-15 15:33:07,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:07,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:07,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:07,586 INFO L225 Difference]: With dead ends: 11357 [2022-03-15 15:33:07,586 INFO L226 Difference]: Without dead ends: 10814 [2022-03-15 15:33:07,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:07,586 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:07,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 230 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:33:07,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10814 states. [2022-03-15 15:33:07,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10814 to 5093. [2022-03-15 15:33:07,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.755498821681068) internal successors, (24215), 5092 states have internal predecessors, (24215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24215 transitions. [2022-03-15 15:33:07,717 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24215 transitions. Word has length 29 [2022-03-15 15:33:07,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:07,717 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24215 transitions. [2022-03-15 15:33:07,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:07,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24215 transitions. [2022-03-15 15:33:07,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:07,726 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:07,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:07,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable772 [2022-03-15 15:33:07,726 INFO L402 AbstractCegarLoop]: === Iteration 774 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:07,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:07,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1578698363, now seen corresponding path program 769 times [2022-03-15 15:33:07,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:07,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063169964] [2022-03-15 15:33:07,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:07,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:07,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:07,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:07,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063169964] [2022-03-15 15:33:07,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063169964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:07,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:07,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:07,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936713355] [2022-03-15 15:33:07,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:07,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:07,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:07,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:07,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:07,899 INFO L87 Difference]: Start difference. First operand 5093 states and 24215 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:08,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:08,135 INFO L93 Difference]: Finished difference Result 11214 states and 50025 transitions. [2022-03-15 15:33:08,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:08,135 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:08,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:08,173 INFO L225 Difference]: With dead ends: 11214 [2022-03-15 15:33:08,173 INFO L226 Difference]: Without dead ends: 10799 [2022-03-15 15:33:08,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:08,173 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 158 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:08,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 221 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:08,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10799 states. [2022-03-15 15:33:08,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10799 to 5221. [2022-03-15 15:33:08,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.747701149425287) internal successors, (24783), 5220 states have internal predecessors, (24783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:08,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24783 transitions. [2022-03-15 15:33:08,350 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24783 transitions. Word has length 29 [2022-03-15 15:33:08,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:08,351 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24783 transitions. [2022-03-15 15:33:08,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:08,351 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24783 transitions. [2022-03-15 15:33:08,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:08,361 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:08,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:08,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable773 [2022-03-15 15:33:08,361 INFO L402 AbstractCegarLoop]: === Iteration 775 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:08,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:08,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1731064903, now seen corresponding path program 770 times [2022-03-15 15:33:08,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:08,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417034533] [2022-03-15 15:33:08,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:08,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:08,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:08,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417034533] [2022-03-15 15:33:08,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417034533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:08,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:08,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:08,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783173128] [2022-03-15 15:33:08,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:08,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:08,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:08,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:08,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:08,542 INFO L87 Difference]: Start difference. First operand 5221 states and 24783 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:08,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:08,796 INFO L93 Difference]: Finished difference Result 11341 states and 50504 transitions. [2022-03-15 15:33:08,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:08,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:08,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:08,828 INFO L225 Difference]: With dead ends: 11341 [2022-03-15 15:33:08,828 INFO L226 Difference]: Without dead ends: 10719 [2022-03-15 15:33:08,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:08,828 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 169 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:08,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 208 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:33:08,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10719 states. [2022-03-15 15:33:08,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10719 to 5141. [2022-03-15 15:33:08,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.753112840466926) internal successors, (24431), 5140 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:08,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24431 transitions. [2022-03-15 15:33:08,974 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24431 transitions. Word has length 29 [2022-03-15 15:33:08,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:08,974 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24431 transitions. [2022-03-15 15:33:08,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:08,974 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24431 transitions. [2022-03-15 15:33:08,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:08,983 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:08,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:08,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable774 [2022-03-15 15:33:08,983 INFO L402 AbstractCegarLoop]: === Iteration 776 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:08,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:08,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1493910365, now seen corresponding path program 771 times [2022-03-15 15:33:08,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:08,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499877001] [2022-03-15 15:33:08,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:08,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:09,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:09,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499877001] [2022-03-15 15:33:09,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499877001] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:09,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:09,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:09,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349792990] [2022-03-15 15:33:09,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:09,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:09,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:09,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:09,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:09,158 INFO L87 Difference]: Start difference. First operand 5141 states and 24431 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:09,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:09,400 INFO L93 Difference]: Finished difference Result 11039 states and 49242 transitions. [2022-03-15 15:33:09,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:09,400 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:09,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:09,431 INFO L225 Difference]: With dead ends: 11039 [2022-03-15 15:33:09,431 INFO L226 Difference]: Without dead ends: 10624 [2022-03-15 15:33:09,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:09,431 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 164 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:09,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 261 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:33:09,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10624 states. [2022-03-15 15:33:09,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10624 to 5173. [2022-03-15 15:33:09,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.745359628770301) internal successors, (24543), 5172 states have internal predecessors, (24543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24543 transitions. [2022-03-15 15:33:09,563 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24543 transitions. Word has length 29 [2022-03-15 15:33:09,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:09,563 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24543 transitions. [2022-03-15 15:33:09,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:09,563 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24543 transitions. [2022-03-15 15:33:09,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:09,572 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:09,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:09,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable775 [2022-03-15 15:33:09,573 INFO L402 AbstractCegarLoop]: === Iteration 777 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:09,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:09,573 INFO L85 PathProgramCache]: Analyzing trace with hash -826444451, now seen corresponding path program 772 times [2022-03-15 15:33:09,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:09,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669009043] [2022-03-15 15:33:09,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:09,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:09,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:09,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:09,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669009043] [2022-03-15 15:33:09,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669009043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:09,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:09,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:09,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848805349] [2022-03-15 15:33:09,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:09,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:09,750 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:09,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:09,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:09,750 INFO L87 Difference]: Start difference. First operand 5173 states and 24543 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:10,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:10,002 INFO L93 Difference]: Finished difference Result 11039 states and 49210 transitions. [2022-03-15 15:33:10,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:10,002 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:10,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:10,034 INFO L225 Difference]: With dead ends: 11039 [2022-03-15 15:33:10,034 INFO L226 Difference]: Without dead ends: 10592 [2022-03-15 15:33:10,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:10,035 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 146 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:10,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 279 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:33:10,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2022-03-15 15:33:10,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 5141. [2022-03-15 15:33:10,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.75) internal successors, (24415), 5140 states have internal predecessors, (24415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:10,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24415 transitions. [2022-03-15 15:33:10,164 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24415 transitions. Word has length 29 [2022-03-15 15:33:10,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:10,164 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24415 transitions. [2022-03-15 15:33:10,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:10,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24415 transitions. [2022-03-15 15:33:10,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:10,174 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:10,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:10,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable776 [2022-03-15 15:33:10,174 INFO L402 AbstractCegarLoop]: === Iteration 778 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:10,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:10,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1710530307, now seen corresponding path program 773 times [2022-03-15 15:33:10,174 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:10,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973159854] [2022-03-15 15:33:10,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:10,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:10,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:10,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:10,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973159854] [2022-03-15 15:33:10,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973159854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:10,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:10,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:10,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812551497] [2022-03-15 15:33:10,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:10,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:10,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:10,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:10,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:10,355 INFO L87 Difference]: Start difference. First operand 5141 states and 24415 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:10,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:10,542 INFO L93 Difference]: Finished difference Result 11341 states and 50504 transitions. [2022-03-15 15:33:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:10,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:10,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:10,576 INFO L225 Difference]: With dead ends: 11341 [2022-03-15 15:33:10,576 INFO L226 Difference]: Without dead ends: 10799 [2022-03-15 15:33:10,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:10,577 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 168 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:10,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 238 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:10,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10799 states. [2022-03-15 15:33:10,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10799 to 5221. [2022-03-15 15:33:10,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.732375478927203) internal successors, (24703), 5220 states have internal predecessors, (24703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:10,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24703 transitions. [2022-03-15 15:33:10,731 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24703 transitions. Word has length 29 [2022-03-15 15:33:10,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:10,732 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24703 transitions. [2022-03-15 15:33:10,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24703 transitions. [2022-03-15 15:33:10,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:10,742 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:10,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:10,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable777 [2022-03-15 15:33:10,742 INFO L402 AbstractCegarLoop]: === Iteration 779 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:10,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:10,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1917338273, now seen corresponding path program 774 times [2022-03-15 15:33:10,742 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:10,742 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675459531] [2022-03-15 15:33:10,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:10,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:10,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:10,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675459531] [2022-03-15 15:33:10,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675459531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:10,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:10,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:10,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539787893] [2022-03-15 15:33:10,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:10,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:10,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:10,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:10,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:10,871 INFO L87 Difference]: Start difference. First operand 5221 states and 24703 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:11,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:11,040 INFO L93 Difference]: Finished difference Result 11214 states and 49897 transitions. [2022-03-15 15:33:11,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:11,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:11,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:11,074 INFO L225 Difference]: With dead ends: 11214 [2022-03-15 15:33:11,074 INFO L226 Difference]: Without dead ends: 10687 [2022-03-15 15:33:11,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:11,074 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 151 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:11,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 233 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:11,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10687 states. [2022-03-15 15:33:11,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10687 to 5109. [2022-03-15 15:33:11,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.754698512137823) internal successors, (24287), 5108 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:11,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24287 transitions. [2022-03-15 15:33:11,222 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24287 transitions. Word has length 29 [2022-03-15 15:33:11,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:11,222 INFO L470 AbstractCegarLoop]: Abstraction has 5109 states and 24287 transitions. [2022-03-15 15:33:11,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:11,223 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24287 transitions. [2022-03-15 15:33:11,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:11,233 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:11,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:11,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable778 [2022-03-15 15:33:11,233 INFO L402 AbstractCegarLoop]: === Iteration 780 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:11,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:11,233 INFO L85 PathProgramCache]: Analyzing trace with hash -120651293, now seen corresponding path program 775 times [2022-03-15 15:33:11,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:11,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845220569] [2022-03-15 15:33:11,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:11,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:11,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:11,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:11,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845220569] [2022-03-15 15:33:11,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845220569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:11,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:11,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:11,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178707822] [2022-03-15 15:33:11,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:11,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:11,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:11,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:11,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:11,350 INFO L87 Difference]: Start difference. First operand 5109 states and 24287 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:11,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:11,516 INFO L93 Difference]: Finished difference Result 11328 states and 50544 transitions. [2022-03-15 15:33:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:11,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:11,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:11,548 INFO L225 Difference]: With dead ends: 11328 [2022-03-15 15:33:11,548 INFO L226 Difference]: Without dead ends: 10913 [2022-03-15 15:33:11,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:11,548 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 176 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:11,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 213 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:11,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10913 states. [2022-03-15 15:33:11,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10913 to 5229. [2022-03-15 15:33:11,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.745791889824025) internal successors, (24811), 5228 states have internal predecessors, (24811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:11,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24811 transitions. [2022-03-15 15:33:11,754 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24811 transitions. Word has length 29 [2022-03-15 15:33:11,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:11,754 INFO L470 AbstractCegarLoop]: Abstraction has 5229 states and 24811 transitions. [2022-03-15 15:33:11,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:11,754 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24811 transitions. [2022-03-15 15:33:11,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:11,764 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:11,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:11,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable779 [2022-03-15 15:33:11,764 INFO L402 AbstractCegarLoop]: === Iteration 781 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:11,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:11,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1105855323, now seen corresponding path program 776 times [2022-03-15 15:33:11,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:11,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577518940] [2022-03-15 15:33:11,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:11,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:11,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:11,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577518940] [2022-03-15 15:33:11,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577518940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:11,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:11,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:11,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234898358] [2022-03-15 15:33:11,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:11,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:11,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:11,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:11,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:11,871 INFO L87 Difference]: Start difference. First operand 5229 states and 24811 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:12,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:12,061 INFO L93 Difference]: Finished difference Result 11455 states and 51023 transitions. [2022-03-15 15:33:12,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:12,061 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:12,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:12,094 INFO L225 Difference]: With dead ends: 11455 [2022-03-15 15:33:12,094 INFO L226 Difference]: Without dead ends: 10833 [2022-03-15 15:33:12,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:12,094 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 149 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:12,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 252 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:12,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10833 states. [2022-03-15 15:33:12,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10833 to 5149. [2022-03-15 15:33:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.7496114996114995) internal successors, (24451), 5148 states have internal predecessors, (24451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:12,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24451 transitions. [2022-03-15 15:33:12,240 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24451 transitions. Word has length 29 [2022-03-15 15:33:12,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:12,240 INFO L470 AbstractCegarLoop]: Abstraction has 5149 states and 24451 transitions. [2022-03-15 15:33:12,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:12,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24451 transitions. [2022-03-15 15:33:12,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:12,250 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:12,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:12,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable780 [2022-03-15 15:33:12,250 INFO L402 AbstractCegarLoop]: === Iteration 782 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:12,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:12,251 INFO L85 PathProgramCache]: Analyzing trace with hash -452795101, now seen corresponding path program 777 times [2022-03-15 15:33:12,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:12,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009485697] [2022-03-15 15:33:12,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:12,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:12,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:12,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:12,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009485697] [2022-03-15 15:33:12,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009485697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:12,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:12,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:12,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928318919] [2022-03-15 15:33:12,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:12,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:12,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:12,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:12,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:12,360 INFO L87 Difference]: Start difference. First operand 5149 states and 24451 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:12,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:12,550 INFO L93 Difference]: Finished difference Result 11229 states and 50097 transitions. [2022-03-15 15:33:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:12,551 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:12,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:12,582 INFO L225 Difference]: With dead ends: 11229 [2022-03-15 15:33:12,582 INFO L226 Difference]: Without dead ends: 10814 [2022-03-15 15:33:12,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:12,582 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 151 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:12,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 253 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:12,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10814 states. [2022-03-15 15:33:12,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10814 to 5197. [2022-03-15 15:33:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 4.739607390300231) internal successors, (24627), 5196 states have internal predecessors, (24627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:12,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 24627 transitions. [2022-03-15 15:33:12,715 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 24627 transitions. Word has length 29 [2022-03-15 15:33:12,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:12,715 INFO L470 AbstractCegarLoop]: Abstraction has 5197 states and 24627 transitions. [2022-03-15 15:33:12,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:12,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 24627 transitions. [2022-03-15 15:33:12,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:12,724 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:12,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:12,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable781 [2022-03-15 15:33:12,725 INFO L402 AbstractCegarLoop]: === Iteration 783 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:12,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:12,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1454851963, now seen corresponding path program 778 times [2022-03-15 15:33:12,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:12,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991088422] [2022-03-15 15:33:12,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:12,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:12,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:12,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:12,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991088422] [2022-03-15 15:33:12,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991088422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:12,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:12,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:12,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335443772] [2022-03-15 15:33:12,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:12,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:12,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:12,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:12,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:12,899 INFO L87 Difference]: Start difference. First operand 5197 states and 24627 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:13,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:13,127 INFO L93 Difference]: Finished difference Result 11289 states and 50313 transitions. [2022-03-15 15:33:13,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:13,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:13,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:13,160 INFO L225 Difference]: With dead ends: 11289 [2022-03-15 15:33:13,160 INFO L226 Difference]: Without dead ends: 10766 [2022-03-15 15:33:13,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:13,161 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 163 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:13,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 224 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:13,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2022-03-15 15:33:13,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 5149. [2022-03-15 15:33:13,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.744949494949495) internal successors, (24427), 5148 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:13,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24427 transitions. [2022-03-15 15:33:13,307 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24427 transitions. Word has length 29 [2022-03-15 15:33:13,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:13,308 INFO L470 AbstractCegarLoop]: Abstraction has 5149 states and 24427 transitions. [2022-03-15 15:33:13,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:13,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24427 transitions. [2022-03-15 15:33:13,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:13,317 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:13,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:13,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable782 [2022-03-15 15:33:13,317 INFO L402 AbstractCegarLoop]: === Iteration 784 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:13,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:13,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1064748345, now seen corresponding path program 779 times [2022-03-15 15:33:13,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:13,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842528051] [2022-03-15 15:33:13,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:13,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:13,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:13,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842528051] [2022-03-15 15:33:13,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842528051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:13,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:13,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:13,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571264166] [2022-03-15 15:33:13,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:13,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:13,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:13,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:13,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:13,436 INFO L87 Difference]: Start difference. First operand 5149 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:13,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:13,654 INFO L93 Difference]: Finished difference Result 11545 states and 51418 transitions. [2022-03-15 15:33:13,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:13,655 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:13,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:13,705 INFO L225 Difference]: With dead ends: 11545 [2022-03-15 15:33:13,705 INFO L226 Difference]: Without dead ends: 11003 [2022-03-15 15:33:13,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:13,706 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:13,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 207 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:13,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11003 states. [2022-03-15 15:33:13,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11003 to 5259. [2022-03-15 15:33:13,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7227082540890075) internal successors, (24832), 5258 states have internal predecessors, (24832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:13,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24832 transitions. [2022-03-15 15:33:13,879 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24832 transitions. Word has length 29 [2022-03-15 15:33:13,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:13,879 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 24832 transitions. [2022-03-15 15:33:13,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:13,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24832 transitions. [2022-03-15 15:33:13,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:13,890 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:13,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:13,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable783 [2022-03-15 15:33:13,891 INFO L402 AbstractCegarLoop]: === Iteration 785 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:13,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:13,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1805700443, now seen corresponding path program 780 times [2022-03-15 15:33:13,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:13,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926573582] [2022-03-15 15:33:13,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:13,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:14,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:14,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:14,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926573582] [2022-03-15 15:33:14,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926573582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:14,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:14,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:14,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806112628] [2022-03-15 15:33:14,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:14,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:14,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:14,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:14,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:14,002 INFO L87 Difference]: Start difference. First operand 5259 states and 24832 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:14,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:14,185 INFO L93 Difference]: Finished difference Result 11478 states and 51045 transitions. [2022-03-15 15:33:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:14,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:14,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:14,222 INFO L225 Difference]: With dead ends: 11478 [2022-03-15 15:33:14,222 INFO L226 Difference]: Without dead ends: 10853 [2022-03-15 15:33:14,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:14,222 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:14,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 232 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:14,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10853 states. [2022-03-15 15:33:14,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10853 to 5109. [2022-03-15 15:33:14,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.751566170712608) internal successors, (24271), 5108 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:14,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24271 transitions. [2022-03-15 15:33:14,384 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24271 transitions. Word has length 29 [2022-03-15 15:33:14,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:14,384 INFO L470 AbstractCegarLoop]: Abstraction has 5109 states and 24271 transitions. [2022-03-15 15:33:14,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:14,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24271 transitions. [2022-03-15 15:33:14,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:14,396 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:14,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:14,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable784 [2022-03-15 15:33:14,396 INFO L402 AbstractCegarLoop]: === Iteration 786 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:14,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:14,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1386432705, now seen corresponding path program 781 times [2022-03-15 15:33:14,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:14,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554675853] [2022-03-15 15:33:14,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:14,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:14,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:14,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:14,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554675853] [2022-03-15 15:33:14,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554675853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:14,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:14,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:14,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240983540] [2022-03-15 15:33:14,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:14,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:14,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:14,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:14,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:14,591 INFO L87 Difference]: Start difference. First operand 5109 states and 24271 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:14,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:14,839 INFO L93 Difference]: Finished difference Result 10892 states and 48611 transitions. [2022-03-15 15:33:14,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:14,839 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:14,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:14,874 INFO L225 Difference]: With dead ends: 10892 [2022-03-15 15:33:14,874 INFO L226 Difference]: Without dead ends: 10477 [2022-03-15 15:33:14,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:14,874 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 156 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:14,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 269 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:14,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10477 states. [2022-03-15 15:33:15,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10477 to 5157. [2022-03-15 15:33:15,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.744569433669511) internal successors, (24463), 5156 states have internal predecessors, (24463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:15,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24463 transitions. [2022-03-15 15:33:15,046 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24463 transitions. Word has length 29 [2022-03-15 15:33:15,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:15,046 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24463 transitions. [2022-03-15 15:33:15,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:15,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24463 transitions. [2022-03-15 15:33:15,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:15,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:15,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:15,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable785 [2022-03-15 15:33:15,057 INFO L402 AbstractCegarLoop]: === Iteration 787 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:15,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:15,057 INFO L85 PathProgramCache]: Analyzing trace with hash 2053898619, now seen corresponding path program 782 times [2022-03-15 15:33:15,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:15,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378991432] [2022-03-15 15:33:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:15,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:15,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:15,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378991432] [2022-03-15 15:33:15,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378991432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:15,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:15,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:15,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175457877] [2022-03-15 15:33:15,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:15,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:15,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:15,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:15,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:15,174 INFO L87 Difference]: Start difference. First operand 5157 states and 24463 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:15,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:15,343 INFO L93 Difference]: Finished difference Result 10892 states and 48579 transitions. [2022-03-15 15:33:15,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:15,343 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:15,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:15,378 INFO L225 Difference]: With dead ends: 10892 [2022-03-15 15:33:15,378 INFO L226 Difference]: Without dead ends: 10445 [2022-03-15 15:33:15,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:15,378 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 155 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:15,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 226 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:15,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10445 states. [2022-03-15 15:33:15,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10445 to 5125. [2022-03-15 15:33:15,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.749219359875098) internal successors, (24335), 5124 states have internal predecessors, (24335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:15,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24335 transitions. [2022-03-15 15:33:15,551 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24335 transitions. Word has length 29 [2022-03-15 15:33:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:15,552 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24335 transitions. [2022-03-15 15:33:15,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24335 transitions. [2022-03-15 15:33:15,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:15,562 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:15,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:15,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable786 [2022-03-15 15:33:15,563 INFO L402 AbstractCegarLoop]: === Iteration 788 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:15,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:15,563 INFO L85 PathProgramCache]: Analyzing trace with hash 905530659, now seen corresponding path program 783 times [2022-03-15 15:33:15,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:15,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634909332] [2022-03-15 15:33:15,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:15,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:15,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:15,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:15,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634909332] [2022-03-15 15:33:15,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634909332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:15,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:15,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:15,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149652789] [2022-03-15 15:33:15,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:15,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:15,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:15,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:15,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:15,724 INFO L87 Difference]: Start difference. First operand 5125 states and 24335 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:15,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:15,942 INFO L93 Difference]: Finished difference Result 10968 states and 48939 transitions. [2022-03-15 15:33:15,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:15,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:15,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:15,975 INFO L225 Difference]: With dead ends: 10968 [2022-03-15 15:33:15,975 INFO L226 Difference]: Without dead ends: 10553 [2022-03-15 15:33:15,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:15,976 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 159 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:15,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 236 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:15,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10553 states. [2022-03-15 15:33:16,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10553 to 5173. [2022-03-15 15:33:16,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.739172467130704) internal successors, (24511), 5172 states have internal predecessors, (24511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:16,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24511 transitions. [2022-03-15 15:33:16,132 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24511 transitions. Word has length 29 [2022-03-15 15:33:16,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:16,132 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24511 transitions. [2022-03-15 15:33:16,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24511 transitions. [2022-03-15 15:33:16,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:16,143 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:16,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:16,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable787 [2022-03-15 15:33:16,143 INFO L402 AbstractCegarLoop]: === Iteration 789 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:16,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:16,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1577964509, now seen corresponding path program 784 times [2022-03-15 15:33:16,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:16,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962486737] [2022-03-15 15:33:16,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:16,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:16,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:16,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962486737] [2022-03-15 15:33:16,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962486737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:16,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:16,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:16,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986478562] [2022-03-15 15:33:16,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:16,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:16,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:16,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:16,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:16,265 INFO L87 Difference]: Start difference. First operand 5173 states and 24511 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:16,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:16,451 INFO L93 Difference]: Finished difference Result 11028 states and 49155 transitions. [2022-03-15 15:33:16,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:16,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:16,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:16,488 INFO L225 Difference]: With dead ends: 11028 [2022-03-15 15:33:16,488 INFO L226 Difference]: Without dead ends: 10505 [2022-03-15 15:33:16,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:16,488 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 168 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:16,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 228 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:16,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10505 states. [2022-03-15 15:33:16,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10505 to 5125. [2022-03-15 15:33:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.746096799375488) internal successors, (24319), 5124 states have internal predecessors, (24319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:16,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24319 transitions. [2022-03-15 15:33:16,643 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24319 transitions. Word has length 29 [2022-03-15 15:33:16,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:16,643 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24319 transitions. [2022-03-15 15:33:16,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:16,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24319 transitions. [2022-03-15 15:33:16,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:16,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:16,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:16,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable788 [2022-03-15 15:33:16,653 INFO L402 AbstractCegarLoop]: === Iteration 790 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:16,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:16,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1923202555, now seen corresponding path program 785 times [2022-03-15 15:33:16,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:16,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032311472] [2022-03-15 15:33:16,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:16,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:16,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:16,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:16,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032311472] [2022-03-15 15:33:16,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032311472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:16,824 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:16,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:16,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120841404] [2022-03-15 15:33:16,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:16,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:16,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:16,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:16,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:16,825 INFO L87 Difference]: Start difference. First operand 5125 states and 24319 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:17,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:17,008 INFO L93 Difference]: Finished difference Result 10968 states and 48923 transitions. [2022-03-15 15:33:17,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:17,008 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:17,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:17,039 INFO L225 Difference]: With dead ends: 10968 [2022-03-15 15:33:17,039 INFO L226 Difference]: Without dead ends: 10553 [2022-03-15 15:33:17,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:17,039 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:17,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 206 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:17,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10553 states. [2022-03-15 15:33:17,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10553 to 5173. [2022-03-15 15:33:17,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.736078886310905) internal successors, (24495), 5172 states have internal predecessors, (24495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:17,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24495 transitions. [2022-03-15 15:33:17,174 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24495 transitions. Word has length 29 [2022-03-15 15:33:17,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:17,174 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24495 transitions. [2022-03-15 15:33:17,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:17,174 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24495 transitions. [2022-03-15 15:33:17,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:17,184 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:17,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:17,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable789 [2022-03-15 15:33:17,184 INFO L402 AbstractCegarLoop]: === Iteration 791 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:17,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:17,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1290702115, now seen corresponding path program 786 times [2022-03-15 15:33:17,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:17,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362931938] [2022-03-15 15:33:17,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:17,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:17,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:17,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362931938] [2022-03-15 15:33:17,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362931938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:17,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:17,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:17,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358740162] [2022-03-15 15:33:17,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:17,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:17,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:17,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:17,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:17,347 INFO L87 Difference]: Start difference. First operand 5173 states and 24495 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:17,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:17,581 INFO L93 Difference]: Finished difference Result 11028 states and 49139 transitions. [2022-03-15 15:33:17,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:17,581 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:17,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:17,616 INFO L225 Difference]: With dead ends: 11028 [2022-03-15 15:33:17,616 INFO L226 Difference]: Without dead ends: 10489 [2022-03-15 15:33:17,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:17,616 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:17,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 243 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:17,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10489 states. [2022-03-15 15:33:17,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10489 to 5109. [2022-03-15 15:33:17,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.75) internal successors, (24263), 5108 states have internal predecessors, (24263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:17,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24263 transitions. [2022-03-15 15:33:17,776 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24263 transitions. Word has length 29 [2022-03-15 15:33:17,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:17,776 INFO L470 AbstractCegarLoop]: Abstraction has 5109 states and 24263 transitions. [2022-03-15 15:33:17,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:17,776 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24263 transitions. [2022-03-15 15:33:17,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:17,787 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:17,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:17,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable790 [2022-03-15 15:33:17,787 INFO L402 AbstractCegarLoop]: === Iteration 792 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:17,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:17,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1229519387, now seen corresponding path program 787 times [2022-03-15 15:33:17,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:17,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585695271] [2022-03-15 15:33:17,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:17,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:17,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:17,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585695271] [2022-03-15 15:33:17,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585695271] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:17,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:17,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:17,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150875796] [2022-03-15 15:33:17,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:17,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:17,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:17,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:17,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:17,990 INFO L87 Difference]: Start difference. First operand 5109 states and 24263 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:18,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:18,240 INFO L93 Difference]: Finished difference Result 11455 states and 51047 transitions. [2022-03-15 15:33:18,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:18,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:18,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:18,285 INFO L225 Difference]: With dead ends: 11455 [2022-03-15 15:33:18,286 INFO L226 Difference]: Without dead ends: 10913 [2022-03-15 15:33:18,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:18,286 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 142 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:18,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 271 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:33:18,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10913 states. [2022-03-15 15:33:18,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10913 to 5229. [2022-03-15 15:33:18,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.735080336648814) internal successors, (24755), 5228 states have internal predecessors, (24755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:18,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24755 transitions. [2022-03-15 15:33:18,468 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24755 transitions. Word has length 29 [2022-03-15 15:33:18,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:18,468 INFO L470 AbstractCegarLoop]: Abstraction has 5229 states and 24755 transitions. [2022-03-15 15:33:18,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:18,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24755 transitions. [2022-03-15 15:33:18,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:18,480 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:18,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:18,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable791 [2022-03-15 15:33:18,480 INFO L402 AbstractCegarLoop]: === Iteration 793 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:18,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:18,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1022711421, now seen corresponding path program 788 times [2022-03-15 15:33:18,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:18,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625465689] [2022-03-15 15:33:18,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:18,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:18,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:18,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:18,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625465689] [2022-03-15 15:33:18,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625465689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:18,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:18,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:18,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235527431] [2022-03-15 15:33:18,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:18,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:18,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:18,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:18,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:18,665 INFO L87 Difference]: Start difference. First operand 5229 states and 24755 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:18,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:18,946 INFO L93 Difference]: Finished difference Result 11328 states and 50440 transitions. [2022-03-15 15:33:18,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:18,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:18,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:18,988 INFO L225 Difference]: With dead ends: 11328 [2022-03-15 15:33:18,988 INFO L226 Difference]: Without dead ends: 10833 [2022-03-15 15:33:18,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:18,988 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 179 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:18,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 198 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:33:19,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10833 states. [2022-03-15 15:33:19,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10833 to 5149. [2022-03-15 15:33:19,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.744949494949495) internal successors, (24427), 5148 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:19,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24427 transitions. [2022-03-15 15:33:19,158 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24427 transitions. Word has length 29 [2022-03-15 15:33:19,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:19,159 INFO L470 AbstractCegarLoop]: Abstraction has 5149 states and 24427 transitions. [2022-03-15 15:33:19,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:19,159 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24427 transitions. [2022-03-15 15:33:19,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:19,170 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:19,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:19,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable792 [2022-03-15 15:33:19,170 INFO L402 AbstractCegarLoop]: === Iteration 794 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:19,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:19,170 INFO L85 PathProgramCache]: Analyzing trace with hash 748617341, now seen corresponding path program 789 times [2022-03-15 15:33:19,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:19,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131172252] [2022-03-15 15:33:19,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:19,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:19,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:19,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:19,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131172252] [2022-03-15 15:33:19,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131172252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:19,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:19,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:19,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461215791] [2022-03-15 15:33:19,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:19,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:19,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:19,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:19,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:19,342 INFO L87 Difference]: Start difference. First operand 5149 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:19,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:19,560 INFO L93 Difference]: Finished difference Result 11545 states and 51418 transitions. [2022-03-15 15:33:19,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:19,560 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:19,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:19,598 INFO L225 Difference]: With dead ends: 11545 [2022-03-15 15:33:19,598 INFO L226 Difference]: Without dead ends: 11003 [2022-03-15 15:33:19,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:19,598 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 157 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:19,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 233 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:19,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11003 states. [2022-03-15 15:33:19,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11003 to 5259. [2022-03-15 15:33:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7227082540890075) internal successors, (24832), 5258 states have internal predecessors, (24832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:19,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24832 transitions. [2022-03-15 15:33:19,756 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24832 transitions. Word has length 29 [2022-03-15 15:33:19,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:19,756 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 24832 transitions. [2022-03-15 15:33:19,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:19,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24832 transitions. [2022-03-15 15:33:19,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:19,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:19,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:19,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable793 [2022-03-15 15:33:19,767 INFO L402 AbstractCegarLoop]: === Iteration 795 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:19,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:19,767 INFO L85 PathProgramCache]: Analyzing trace with hash 2067467773, now seen corresponding path program 790 times [2022-03-15 15:33:19,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:19,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153244267] [2022-03-15 15:33:19,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:19,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:19,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:19,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:19,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153244267] [2022-03-15 15:33:19,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153244267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:19,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:19,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:19,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448144075] [2022-03-15 15:33:19,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:19,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:19,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:19,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:19,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:19,908 INFO L87 Difference]: Start difference. First operand 5259 states and 24832 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:20,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:20,096 INFO L93 Difference]: Finished difference Result 11478 states and 51045 transitions. [2022-03-15 15:33:20,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:20,097 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:20,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:20,137 INFO L225 Difference]: With dead ends: 11478 [2022-03-15 15:33:20,137 INFO L226 Difference]: Without dead ends: 10893 [2022-03-15 15:33:20,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:20,137 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 152 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:20,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 217 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:20,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10893 states. [2022-03-15 15:33:20,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10893 to 5149. [2022-03-15 15:33:20,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.737179487179487) internal successors, (24387), 5148 states have internal predecessors, (24387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:20,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24387 transitions. [2022-03-15 15:33:20,326 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24387 transitions. Word has length 29 [2022-03-15 15:33:20,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:20,327 INFO L470 AbstractCegarLoop]: Abstraction has 5149 states and 24387 transitions. [2022-03-15 15:33:20,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:20,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24387 transitions. [2022-03-15 15:33:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:20,338 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:20,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:20,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable794 [2022-03-15 15:33:20,338 INFO L402 AbstractCegarLoop]: === Iteration 796 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:20,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:20,339 INFO L85 PathProgramCache]: Analyzing trace with hash -844305953, now seen corresponding path program 791 times [2022-03-15 15:33:20,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:20,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959361696] [2022-03-15 15:33:20,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:20,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:20,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:20,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:20,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959361696] [2022-03-15 15:33:20,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959361696] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:20,484 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:20,484 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:20,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956418029] [2022-03-15 15:33:20,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:20,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:20,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:20,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:20,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:20,484 INFO L87 Difference]: Start difference. First operand 5149 states and 24387 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:20,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:20,690 INFO L93 Difference]: Finished difference Result 11229 states and 50033 transitions. [2022-03-15 15:33:20,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:20,691 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:20,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:20,728 INFO L225 Difference]: With dead ends: 11229 [2022-03-15 15:33:20,728 INFO L226 Difference]: Without dead ends: 10814 [2022-03-15 15:33:20,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:20,728 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 158 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:20,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 214 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:20,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10814 states. [2022-03-15 15:33:20,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10814 to 5197. [2022-03-15 15:33:20,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 4.7272902232486524) internal successors, (24563), 5196 states have internal predecessors, (24563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:20,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 24563 transitions. [2022-03-15 15:33:20,899 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 24563 transitions. Word has length 29 [2022-03-15 15:33:20,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:20,899 INFO L470 AbstractCegarLoop]: Abstraction has 5197 states and 24563 transitions. [2022-03-15 15:33:20,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:20,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 24563 transitions. [2022-03-15 15:33:20,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:20,910 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:20,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:20,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable795 [2022-03-15 15:33:20,911 INFO L402 AbstractCegarLoop]: === Iteration 797 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:20,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:20,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1691102915, now seen corresponding path program 792 times [2022-03-15 15:33:20,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:20,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407981181] [2022-03-15 15:33:20,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:20,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:21,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:21,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:21,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407981181] [2022-03-15 15:33:21,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407981181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:21,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:21,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:21,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055563281] [2022-03-15 15:33:21,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:21,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:21,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:21,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:21,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:21,056 INFO L87 Difference]: Start difference. First operand 5197 states and 24563 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:21,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:21,284 INFO L93 Difference]: Finished difference Result 11289 states and 50249 transitions. [2022-03-15 15:33:21,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:21,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:21,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:21,321 INFO L225 Difference]: With dead ends: 11289 [2022-03-15 15:33:21,322 INFO L226 Difference]: Without dead ends: 10710 [2022-03-15 15:33:21,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:21,322 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 147 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:21,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 228 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:21,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-03-15 15:33:21,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 5093. [2022-03-15 15:33:21,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.753927729772192) internal successors, (24207), 5092 states have internal predecessors, (24207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:21,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24207 transitions. [2022-03-15 15:33:21,485 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24207 transitions. Word has length 29 [2022-03-15 15:33:21,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:21,485 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24207 transitions. [2022-03-15 15:33:21,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:21,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24207 transitions. [2022-03-15 15:33:21,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:21,495 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:21,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:21,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable796 [2022-03-15 15:33:21,496 INFO L402 AbstractCegarLoop]: === Iteration 798 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:21,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:21,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1100132289, now seen corresponding path program 793 times [2022-03-15 15:33:21,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:21,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930518398] [2022-03-15 15:33:21,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:21,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:21,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:21,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:21,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930518398] [2022-03-15 15:33:21,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930518398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:21,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:21,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:21,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160815832] [2022-03-15 15:33:21,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:21,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:21,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:21,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:21,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:21,719 INFO L87 Difference]: Start difference. First operand 5093 states and 24207 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:21,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:21,942 INFO L93 Difference]: Finished difference Result 10755 states and 48015 transitions. [2022-03-15 15:33:21,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:21,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:21,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:21,974 INFO L225 Difference]: With dead ends: 10755 [2022-03-15 15:33:21,974 INFO L226 Difference]: Without dead ends: 10340 [2022-03-15 15:33:21,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:21,975 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 163 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:21,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 220 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:21,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10340 states. [2022-03-15 15:33:22,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10340 to 5165. [2022-03-15 15:33:22,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.7457397366382645) internal successors, (24507), 5164 states have internal predecessors, (24507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:22,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24507 transitions. [2022-03-15 15:33:22,110 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24507 transitions. Word has length 29 [2022-03-15 15:33:22,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:22,110 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24507 transitions. [2022-03-15 15:33:22,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:22,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24507 transitions. [2022-03-15 15:33:22,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:22,120 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:22,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:22,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable797 [2022-03-15 15:33:22,120 INFO L402 AbstractCegarLoop]: === Iteration 799 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:22,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:22,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1329419299, now seen corresponding path program 794 times [2022-03-15 15:33:22,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:22,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027990608] [2022-03-15 15:33:22,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:22,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:22,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:22,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:22,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027990608] [2022-03-15 15:33:22,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027990608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:22,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:22,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:22,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567130058] [2022-03-15 15:33:22,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:22,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:22,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:22,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:22,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:22,298 INFO L87 Difference]: Start difference. First operand 5165 states and 24507 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:22,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:22,514 INFO L93 Difference]: Finished difference Result 10817 states and 48236 transitions. [2022-03-15 15:33:22,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:22,514 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:22,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:22,549 INFO L225 Difference]: With dead ends: 10817 [2022-03-15 15:33:22,549 INFO L226 Difference]: Without dead ends: 10292 [2022-03-15 15:33:22,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:22,549 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 149 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:22,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 234 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:22,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10292 states. [2022-03-15 15:33:22,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10292 to 5117. [2022-03-15 15:33:22,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.752736512900704) internal successors, (24315), 5116 states have internal predecessors, (24315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:22,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24315 transitions. [2022-03-15 15:33:22,719 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24315 transitions. Word has length 29 [2022-03-15 15:33:22,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:22,719 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24315 transitions. [2022-03-15 15:33:22,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:22,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24315 transitions. [2022-03-15 15:33:22,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:22,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:22,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:22,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable798 [2022-03-15 15:33:22,730 INFO L402 AbstractCegarLoop]: === Iteration 800 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:22,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:22,730 INFO L85 PathProgramCache]: Analyzing trace with hash 619230243, now seen corresponding path program 795 times [2022-03-15 15:33:22,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:22,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957365057] [2022-03-15 15:33:22,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:22,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:22,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:22,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:22,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957365057] [2022-03-15 15:33:22,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957365057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:22,860 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:22,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:22,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904311852] [2022-03-15 15:33:22,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:22,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:22,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:22,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:22,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:22,861 INFO L87 Difference]: Start difference. First operand 5117 states and 24315 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:23,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:23,062 INFO L93 Difference]: Finished difference Result 10677 states and 47650 transitions. [2022-03-15 15:33:23,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:23,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:23,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:23,097 INFO L225 Difference]: With dead ends: 10677 [2022-03-15 15:33:23,097 INFO L226 Difference]: Without dead ends: 10262 [2022-03-15 15:33:23,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:23,098 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 172 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:23,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 228 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:23,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10262 states. [2022-03-15 15:33:23,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10262 to 5149. [2022-03-15 15:33:23,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.744949494949495) internal successors, (24427), 5148 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:23,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24427 transitions. [2022-03-15 15:33:23,261 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24427 transitions. Word has length 29 [2022-03-15 15:33:23,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:23,261 INFO L470 AbstractCegarLoop]: Abstraction has 5149 states and 24427 transitions. [2022-03-15 15:33:23,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:23,261 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24427 transitions. [2022-03-15 15:33:23,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:23,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:23,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:23,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable799 [2022-03-15 15:33:23,271 INFO L402 AbstractCegarLoop]: === Iteration 801 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:23,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:23,271 INFO L85 PathProgramCache]: Analyzing trace with hash -194742149, now seen corresponding path program 796 times [2022-03-15 15:33:23,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:23,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928795745] [2022-03-15 15:33:23,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:23,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:23,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:23,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928795745] [2022-03-15 15:33:23,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928795745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:23,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:23,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:23,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20031922] [2022-03-15 15:33:23,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:23,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:23,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:23,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:23,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:23,404 INFO L87 Difference]: Start difference. First operand 5149 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:23,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:23,624 INFO L93 Difference]: Finished difference Result 10677 states and 47618 transitions. [2022-03-15 15:33:23,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:23,625 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:23,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:23,670 INFO L225 Difference]: With dead ends: 10677 [2022-03-15 15:33:23,670 INFO L226 Difference]: Without dead ends: 10230 [2022-03-15 15:33:23,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:23,670 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 153 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:23,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 225 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:23,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10230 states. [2022-03-15 15:33:23,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10230 to 5117. [2022-03-15 15:33:23,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.749609069585614) internal successors, (24299), 5116 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:23,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24299 transitions. [2022-03-15 15:33:23,806 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24299 transitions. Word has length 29 [2022-03-15 15:33:23,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:23,806 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24299 transitions. [2022-03-15 15:33:23,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:23,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24299 transitions. [2022-03-15 15:33:23,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:23,815 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:23,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:23,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable800 [2022-03-15 15:33:23,816 INFO L402 AbstractCegarLoop]: === Iteration 802 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:23,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:23,816 INFO L85 PathProgramCache]: Analyzing trace with hash -59046661, now seen corresponding path program 797 times [2022-03-15 15:33:23,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:23,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201891274] [2022-03-15 15:33:23,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:23,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:24,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:24,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201891274] [2022-03-15 15:33:24,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201891274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:24,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:24,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:24,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541866825] [2022-03-15 15:33:24,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:24,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:24,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:24,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:24,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:24,005 INFO L87 Difference]: Start difference. First operand 5117 states and 24299 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:24,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:24,242 INFO L93 Difference]: Finished difference Result 10817 states and 48252 transitions. [2022-03-15 15:33:24,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:24,242 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:24,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:24,278 INFO L225 Difference]: With dead ends: 10817 [2022-03-15 15:33:24,278 INFO L226 Difference]: Without dead ends: 10340 [2022-03-15 15:33:24,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:24,278 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:24,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 233 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:24,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10340 states. [2022-03-15 15:33:24,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10340 to 5165. [2022-03-15 15:33:24,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.739542989930286) internal successors, (24475), 5164 states have internal predecessors, (24475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:24,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24475 transitions. [2022-03-15 15:33:24,450 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24475 transitions. Word has length 29 [2022-03-15 15:33:24,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:24,450 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24475 transitions. [2022-03-15 15:33:24,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:24,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24475 transitions. [2022-03-15 15:33:24,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:24,461 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:24,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:24,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable801 [2022-03-15 15:33:24,462 INFO L402 AbstractCegarLoop]: === Iteration 803 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:24,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:24,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1022015965, now seen corresponding path program 798 times [2022-03-15 15:33:24,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:24,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848415883] [2022-03-15 15:33:24,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:24,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:24,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:24,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:24,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848415883] [2022-03-15 15:33:24,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848415883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:24,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:24,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:24,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318407695] [2022-03-15 15:33:24,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:24,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:24,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:24,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:24,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:24,661 INFO L87 Difference]: Start difference. First operand 5165 states and 24475 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:24,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:24,896 INFO L93 Difference]: Finished difference Result 10755 states and 47935 transitions. [2022-03-15 15:33:24,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:24,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:24,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:24,933 INFO L225 Difference]: With dead ends: 10755 [2022-03-15 15:33:24,933 INFO L226 Difference]: Without dead ends: 10276 [2022-03-15 15:33:24,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:24,933 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 154 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:24,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 234 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10276 states. [2022-03-15 15:33:25,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10276 to 5101. [2022-03-15 15:33:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.753529411764706) internal successors, (24243), 5100 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:25,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24243 transitions. [2022-03-15 15:33:25,095 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24243 transitions. Word has length 29 [2022-03-15 15:33:25,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:25,096 INFO L470 AbstractCegarLoop]: Abstraction has 5101 states and 24243 transitions. [2022-03-15 15:33:25,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:25,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24243 transitions. [2022-03-15 15:33:25,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:25,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:25,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:25,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable802 [2022-03-15 15:33:25,106 INFO L402 AbstractCegarLoop]: === Iteration 804 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:25,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:25,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1485233245, now seen corresponding path program 799 times [2022-03-15 15:33:25,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:25,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169464993] [2022-03-15 15:33:25,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:25,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:25,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:25,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169464993] [2022-03-15 15:33:25,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169464993] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:25,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:25,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:25,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087644503] [2022-03-15 15:33:25,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:25,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:25,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:25,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:25,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:25,232 INFO L87 Difference]: Start difference. First operand 5101 states and 24243 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:25,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:25,410 INFO L93 Difference]: Finished difference Result 10869 states and 48542 transitions. [2022-03-15 15:33:25,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:25,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:25,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:25,445 INFO L225 Difference]: With dead ends: 10869 [2022-03-15 15:33:25,445 INFO L226 Difference]: Without dead ends: 10454 [2022-03-15 15:33:25,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:25,445 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 159 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:25,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 208 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:25,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2022-03-15 15:33:25,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 5173. [2022-03-15 15:33:25,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.745359628770301) internal successors, (24543), 5172 states have internal predecessors, (24543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:25,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24543 transitions. [2022-03-15 15:33:25,610 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24543 transitions. Word has length 29 [2022-03-15 15:33:25,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:25,610 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24543 transitions. [2022-03-15 15:33:25,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:25,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24543 transitions. [2022-03-15 15:33:25,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:25,621 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:25,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:25,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable803 [2022-03-15 15:33:25,621 INFO L402 AbstractCegarLoop]: === Iteration 805 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:25,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:25,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1255946235, now seen corresponding path program 800 times [2022-03-15 15:33:25,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:25,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812369399] [2022-03-15 15:33:25,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:25,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:25,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:25,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812369399] [2022-03-15 15:33:25,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812369399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:25,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:25,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:25,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152025941] [2022-03-15 15:33:25,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:25,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:25,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:25,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:25,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:25,776 INFO L87 Difference]: Start difference. First operand 5173 states and 24543 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:25,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:25,977 INFO L93 Difference]: Finished difference Result 10931 states and 48763 transitions. [2022-03-15 15:33:25,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:25,977 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:25,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:26,011 INFO L225 Difference]: With dead ends: 10931 [2022-03-15 15:33:26,011 INFO L226 Difference]: Without dead ends: 10406 [2022-03-15 15:33:26,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:26,011 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:26,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 213 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:26,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10406 states. [2022-03-15 15:33:26,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10406 to 5125. [2022-03-15 15:33:26,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.750780640124902) internal successors, (24343), 5124 states have internal predecessors, (24343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:26,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24343 transitions. [2022-03-15 15:33:26,173 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24343 transitions. Word has length 29 [2022-03-15 15:33:26,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:26,173 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24343 transitions. [2022-03-15 15:33:26,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:26,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24343 transitions. [2022-03-15 15:33:26,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:26,184 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:26,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:26,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable804 [2022-03-15 15:33:26,184 INFO L402 AbstractCegarLoop]: === Iteration 806 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:26,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:26,184 INFO L85 PathProgramCache]: Analyzing trace with hash -392262749, now seen corresponding path program 801 times [2022-03-15 15:33:26,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:26,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741208722] [2022-03-15 15:33:26,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:26,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:26,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:26,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:26,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741208722] [2022-03-15 15:33:26,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741208722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:26,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:26,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:26,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014724574] [2022-03-15 15:33:26,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:26,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:26,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:26,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:26,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:26,343 INFO L87 Difference]: Start difference. First operand 5125 states and 24343 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:26,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:26,578 INFO L93 Difference]: Finished difference Result 10867 states and 48513 transitions. [2022-03-15 15:33:26,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:26,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:26,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:26,612 INFO L225 Difference]: With dead ends: 10867 [2022-03-15 15:33:26,612 INFO L226 Difference]: Without dead ends: 10452 [2022-03-15 15:33:26,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:26,613 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 161 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:26,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 224 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:26,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10452 states. [2022-03-15 15:33:26,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10452 to 5173. [2022-03-15 15:33:26,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.740719257540603) internal successors, (24519), 5172 states have internal predecessors, (24519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:26,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24519 transitions. [2022-03-15 15:33:26,770 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24519 transitions. Word has length 29 [2022-03-15 15:33:26,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:26,770 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24519 transitions. [2022-03-15 15:33:26,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:26,770 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24519 transitions. [2022-03-15 15:33:26,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:26,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:26,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:26,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable805 [2022-03-15 15:33:26,781 INFO L402 AbstractCegarLoop]: === Iteration 807 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:26,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:26,781 INFO L85 PathProgramCache]: Analyzing trace with hash 149926691, now seen corresponding path program 802 times [2022-03-15 15:33:26,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:26,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865458806] [2022-03-15 15:33:26,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:26,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:26,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:26,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865458806] [2022-03-15 15:33:26,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865458806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:26,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:26,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:26,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757509683] [2022-03-15 15:33:26,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:26,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:26,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:26,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:26,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:26,933 INFO L87 Difference]: Start difference. First operand 5173 states and 24519 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:27,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:27,123 INFO L93 Difference]: Finished difference Result 10927 states and 48729 transitions. [2022-03-15 15:33:27,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:27,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:27,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:27,163 INFO L225 Difference]: With dead ends: 10927 [2022-03-15 15:33:27,163 INFO L226 Difference]: Without dead ends: 10404 [2022-03-15 15:33:27,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:27,163 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 171 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:27,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 202 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:27,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10404 states. [2022-03-15 15:33:27,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10404 to 5125. [2022-03-15 15:33:27,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.746096799375488) internal successors, (24319), 5124 states have internal predecessors, (24319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:27,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24319 transitions. [2022-03-15 15:33:27,345 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24319 transitions. Word has length 29 [2022-03-15 15:33:27,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:27,345 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24319 transitions. [2022-03-15 15:33:27,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:27,345 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24319 transitions. [2022-03-15 15:33:27,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:27,356 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:27,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:27,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable806 [2022-03-15 15:33:27,356 INFO L402 AbstractCegarLoop]: === Iteration 808 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:27,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:27,357 INFO L85 PathProgramCache]: Analyzing trace with hash 107013893, now seen corresponding path program 803 times [2022-03-15 15:33:27,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:27,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70809882] [2022-03-15 15:33:27,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:27,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:27,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:27,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:27,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70809882] [2022-03-15 15:33:27,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70809882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:27,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:27,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:27,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112626205] [2022-03-15 15:33:27,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:27,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:27,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:27,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:27,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:27,480 INFO L87 Difference]: Start difference. First operand 5125 states and 24319 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:27,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:27,680 INFO L93 Difference]: Finished difference Result 11021 states and 49174 transitions. [2022-03-15 15:33:27,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:27,680 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:27,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:27,722 INFO L225 Difference]: With dead ends: 11021 [2022-03-15 15:33:27,723 INFO L226 Difference]: Without dead ends: 10544 [2022-03-15 15:33:27,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:27,723 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 152 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:27,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 261 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:27,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2022-03-15 15:33:27,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 5203. [2022-03-15 15:33:27,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.731257208765859) internal successors, (24612), 5202 states have internal predecessors, (24612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:27,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24612 transitions. [2022-03-15 15:33:27,901 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24612 transitions. Word has length 29 [2022-03-15 15:33:27,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:27,902 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24612 transitions. [2022-03-15 15:33:27,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:27,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24612 transitions. [2022-03-15 15:33:27,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:27,913 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:27,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:27,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable807 [2022-03-15 15:33:27,913 INFO L402 AbstractCegarLoop]: === Iteration 809 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:27,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:27,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1285130653, now seen corresponding path program 804 times [2022-03-15 15:33:27,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:27,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225985872] [2022-03-15 15:33:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:27,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:28,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:28,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:28,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225985872] [2022-03-15 15:33:28,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225985872] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:28,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:28,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:28,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642284734] [2022-03-15 15:33:28,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:28,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:28,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:28,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:28,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:28,024 INFO L87 Difference]: Start difference. First operand 5203 states and 24612 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:28,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:28,205 INFO L93 Difference]: Finished difference Result 11019 states and 49091 transitions. [2022-03-15 15:33:28,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:28,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:28,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:28,246 INFO L225 Difference]: With dead ends: 11019 [2022-03-15 15:33:28,246 INFO L226 Difference]: Without dead ends: 10442 [2022-03-15 15:33:28,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:28,246 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 169 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:28,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 223 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:28,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10442 states. [2022-03-15 15:33:28,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10442 to 5101. [2022-03-15 15:33:28,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.7519607843137255) internal successors, (24235), 5100 states have internal predecessors, (24235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:28,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24235 transitions. [2022-03-15 15:33:28,427 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24235 transitions. Word has length 29 [2022-03-15 15:33:28,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:28,427 INFO L470 AbstractCegarLoop]: Abstraction has 5101 states and 24235 transitions. [2022-03-15 15:33:28,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:28,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24235 transitions. [2022-03-15 15:33:28,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:28,438 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:28,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:28,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable808 [2022-03-15 15:33:28,438 INFO L402 AbstractCegarLoop]: === Iteration 810 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:28,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:28,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2020347781, now seen corresponding path program 805 times [2022-03-15 15:33:28,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:28,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969857274] [2022-03-15 15:33:28,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:28,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:28,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:28,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:28,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969857274] [2022-03-15 15:33:28,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969857274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:28,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:28,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:28,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316662161] [2022-03-15 15:33:28,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:28,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:28,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:28,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:28,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:28,568 INFO L87 Difference]: Start difference. First operand 5101 states and 24235 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:28,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:28,783 INFO L93 Difference]: Finished difference Result 10675 states and 47645 transitions. [2022-03-15 15:33:28,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:28,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:28,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:28,814 INFO L225 Difference]: With dead ends: 10675 [2022-03-15 15:33:28,814 INFO L226 Difference]: Without dead ends: 10260 [2022-03-15 15:33:28,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:28,814 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 157 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:28,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 227 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:28,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10260 states. [2022-03-15 15:33:28,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10260 to 5149. [2022-03-15 15:33:28,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.744949494949495) internal successors, (24427), 5148 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:28,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24427 transitions. [2022-03-15 15:33:28,948 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24427 transitions. Word has length 29 [2022-03-15 15:33:28,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:28,948 INFO L470 AbstractCegarLoop]: Abstraction has 5149 states and 24427 transitions. [2022-03-15 15:33:28,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24427 transitions. [2022-03-15 15:33:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:28,958 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:28,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:28,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable809 [2022-03-15 15:33:28,958 INFO L402 AbstractCegarLoop]: === Iteration 811 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:28,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:28,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1206375389, now seen corresponding path program 806 times [2022-03-15 15:33:28,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:28,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500723025] [2022-03-15 15:33:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:28,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:29,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:29,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:29,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500723025] [2022-03-15 15:33:29,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500723025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:29,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:29,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:29,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845986468] [2022-03-15 15:33:29,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:29,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:29,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:29,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:29,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:29,117 INFO L87 Difference]: Start difference. First operand 5149 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:29,331 INFO L93 Difference]: Finished difference Result 10675 states and 47613 transitions. [2022-03-15 15:33:29,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:29,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:29,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:29,364 INFO L225 Difference]: With dead ends: 10675 [2022-03-15 15:33:29,364 INFO L226 Difference]: Without dead ends: 10228 [2022-03-15 15:33:29,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:29,364 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 171 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:29,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 217 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:29,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10228 states. [2022-03-15 15:33:29,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10228 to 5117. [2022-03-15 15:33:29,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.749609069585614) internal successors, (24299), 5116 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:29,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24299 transitions. [2022-03-15 15:33:29,518 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24299 transitions. Word has length 29 [2022-03-15 15:33:29,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:29,518 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24299 transitions. [2022-03-15 15:33:29,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:29,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24299 transitions. [2022-03-15 15:33:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:29,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:29,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:29,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable810 [2022-03-15 15:33:29,528 INFO L402 AbstractCegarLoop]: === Iteration 812 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:29,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:29,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2713757, now seen corresponding path program 807 times [2022-03-15 15:33:29,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:29,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118269870] [2022-03-15 15:33:29,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:29,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:29,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:29,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:29,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118269870] [2022-03-15 15:33:29,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118269870] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:29,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:29,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:29,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849132505] [2022-03-15 15:33:29,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:29,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:29,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:29,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:29,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:29,692 INFO L87 Difference]: Start difference. First operand 5117 states and 24299 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:29,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:29,897 INFO L93 Difference]: Finished difference Result 10751 states and 47973 transitions. [2022-03-15 15:33:29,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:29,897 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:29,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:29,929 INFO L225 Difference]: With dead ends: 10751 [2022-03-15 15:33:29,929 INFO L226 Difference]: Without dead ends: 10336 [2022-03-15 15:33:29,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:29,930 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 167 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:29,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 207 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:29,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10336 states. [2022-03-15 15:33:30,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10336 to 5165. [2022-03-15 15:33:30,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.739542989930286) internal successors, (24475), 5164 states have internal predecessors, (24475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:30,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24475 transitions. [2022-03-15 15:33:30,073 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24475 transitions. Word has length 29 [2022-03-15 15:33:30,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:30,073 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24475 transitions. [2022-03-15 15:33:30,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:30,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24475 transitions. [2022-03-15 15:33:30,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:30,083 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:30,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:30,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable811 [2022-03-15 15:33:30,084 INFO L402 AbstractCegarLoop]: === Iteration 813 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:30,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:30,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1859528453, now seen corresponding path program 808 times [2022-03-15 15:33:30,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:30,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602229888] [2022-03-15 15:33:30,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:30,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:30,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:30,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:30,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602229888] [2022-03-15 15:33:30,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602229888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:30,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:30,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:30,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035205994] [2022-03-15 15:33:30,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:30,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:30,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:30,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:30,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:30,243 INFO L87 Difference]: Start difference. First operand 5165 states and 24475 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:30,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:30,442 INFO L93 Difference]: Finished difference Result 10811 states and 48189 transitions. [2022-03-15 15:33:30,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:30,442 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:30,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:30,473 INFO L225 Difference]: With dead ends: 10811 [2022-03-15 15:33:30,473 INFO L226 Difference]: Without dead ends: 10288 [2022-03-15 15:33:30,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:30,474 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 168 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:30,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 200 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:30,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10288 states. [2022-03-15 15:33:30,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10288 to 5117. [2022-03-15 15:33:30,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.746481626270524) internal successors, (24283), 5116 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:30,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24283 transitions. [2022-03-15 15:33:30,603 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24283 transitions. Word has length 29 [2022-03-15 15:33:30,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:30,603 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24283 transitions. [2022-03-15 15:33:30,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:30,604 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24283 transitions. [2022-03-15 15:33:30,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:30,613 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:30,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:30,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable812 [2022-03-15 15:33:30,613 INFO L402 AbstractCegarLoop]: === Iteration 814 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:30,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:30,613 INFO L85 PathProgramCache]: Analyzing trace with hash -962308869, now seen corresponding path program 809 times [2022-03-15 15:33:30,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:30,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117604637] [2022-03-15 15:33:30,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:30,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:30,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:30,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:30,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117604637] [2022-03-15 15:33:30,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117604637] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:30,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:30,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:30,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259189573] [2022-03-15 15:33:30,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:30,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:30,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:30,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:30,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:30,795 INFO L87 Difference]: Start difference. First operand 5117 states and 24283 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:30,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:30,996 INFO L93 Difference]: Finished difference Result 10751 states and 47957 transitions. [2022-03-15 15:33:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:30,996 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:30,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:31,026 INFO L225 Difference]: With dead ends: 10751 [2022-03-15 15:33:31,027 INFO L226 Difference]: Without dead ends: 10336 [2022-03-15 15:33:31,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:31,027 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 161 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:31,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 211 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:31,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10336 states. [2022-03-15 15:33:31,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10336 to 5165. [2022-03-15 15:33:31,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.736444616576297) internal successors, (24459), 5164 states have internal predecessors, (24459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:31,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24459 transitions. [2022-03-15 15:33:31,158 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24459 transitions. Word has length 29 [2022-03-15 15:33:31,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:31,158 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24459 transitions. [2022-03-15 15:33:31,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:31,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24459 transitions. [2022-03-15 15:33:31,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:31,167 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:31,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:31,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable813 [2022-03-15 15:33:31,168 INFO L402 AbstractCegarLoop]: === Iteration 815 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:31,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:31,168 INFO L85 PathProgramCache]: Analyzing trace with hash 118753757, now seen corresponding path program 810 times [2022-03-15 15:33:31,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:31,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695581278] [2022-03-15 15:33:31,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:31,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:31,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:31,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:31,324 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695581278] [2022-03-15 15:33:31,324 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695581278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:31,324 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:31,324 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:31,324 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297495232] [2022-03-15 15:33:31,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:31,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:31,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:31,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:31,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:31,325 INFO L87 Difference]: Start difference. First operand 5165 states and 24459 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:31,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:31,544 INFO L93 Difference]: Finished difference Result 10811 states and 48173 transitions. [2022-03-15 15:33:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:31,544 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:31,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:31,575 INFO L225 Difference]: With dead ends: 10811 [2022-03-15 15:33:31,575 INFO L226 Difference]: Without dead ends: 10272 [2022-03-15 15:33:31,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:31,576 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 150 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:31,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 216 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:31,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10272 states. [2022-03-15 15:33:31,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10272 to 5101. [2022-03-15 15:33:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.750392156862745) internal successors, (24227), 5100 states have internal predecessors, (24227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:31,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24227 transitions. [2022-03-15 15:33:31,709 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24227 transitions. Word has length 29 [2022-03-15 15:33:31,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:31,709 INFO L470 AbstractCegarLoop]: Abstraction has 5101 states and 24227 transitions. [2022-03-15 15:33:31,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:31,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24227 transitions. [2022-03-15 15:33:31,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:31,719 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:31,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:31,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable814 [2022-03-15 15:33:31,719 INFO L402 AbstractCegarLoop]: === Iteration 816 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:31,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:31,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1103912581, now seen corresponding path program 811 times [2022-03-15 15:33:31,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:31,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834430019] [2022-03-15 15:33:31,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:31,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:31,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:31,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:31,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834430019] [2022-03-15 15:33:31,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834430019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:31,875 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:31,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:31,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817193037] [2022-03-15 15:33:31,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:31,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:31,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:31,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:31,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:31,876 INFO L87 Difference]: Start difference. First operand 5101 states and 24227 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:32,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:32,085 INFO L93 Difference]: Finished difference Result 10931 states and 48795 transitions. [2022-03-15 15:33:32,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:32,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:32,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:32,116 INFO L225 Difference]: With dead ends: 10931 [2022-03-15 15:33:32,117 INFO L226 Difference]: Without dead ends: 10454 [2022-03-15 15:33:32,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:32,117 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:32,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 229 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:32,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2022-03-15 15:33:32,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 5173. [2022-03-15 15:33:32,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.742266047950503) internal successors, (24527), 5172 states have internal predecessors, (24527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:32,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24527 transitions. [2022-03-15 15:33:32,253 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24527 transitions. Word has length 29 [2022-03-15 15:33:32,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:32,254 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24527 transitions. [2022-03-15 15:33:32,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:32,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24527 transitions. [2022-03-15 15:33:32,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:32,263 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:32,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:32,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable815 [2022-03-15 15:33:32,264 INFO L402 AbstractCegarLoop]: === Iteration 817 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:32,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:32,264 INFO L85 PathProgramCache]: Analyzing trace with hash -22849955, now seen corresponding path program 812 times [2022-03-15 15:33:32,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:32,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814242085] [2022-03-15 15:33:32,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:32,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:32,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:32,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:32,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814242085] [2022-03-15 15:33:32,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814242085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:32,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:32,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:32,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504891728] [2022-03-15 15:33:32,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:32,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:32,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:32,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:32,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:32,392 INFO L87 Difference]: Start difference. First operand 5173 states and 24527 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:32,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:32,549 INFO L93 Difference]: Finished difference Result 10869 states and 48478 transitions. [2022-03-15 15:33:32,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:32,549 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:32,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:32,579 INFO L225 Difference]: With dead ends: 10869 [2022-03-15 15:33:32,579 INFO L226 Difference]: Without dead ends: 10406 [2022-03-15 15:33:32,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:32,579 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 171 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:32,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 204 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:32,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10406 states. [2022-03-15 15:33:32,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10406 to 5125. [2022-03-15 15:33:32,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.7476580796252925) internal successors, (24327), 5124 states have internal predecessors, (24327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:32,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24327 transitions. [2022-03-15 15:33:32,709 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24327 transitions. Word has length 29 [2022-03-15 15:33:32,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:32,709 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24327 transitions. [2022-03-15 15:33:32,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:32,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24327 transitions. [2022-03-15 15:33:32,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:32,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:32,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:32,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable816 [2022-03-15 15:33:32,718 INFO L402 AbstractCegarLoop]: === Iteration 818 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:32,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:32,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1584814627, now seen corresponding path program 813 times [2022-03-15 15:33:32,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:32,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376124195] [2022-03-15 15:33:32,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:32,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:32,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:32,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:32,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376124195] [2022-03-15 15:33:32,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376124195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:32,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:32,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:32,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340864504] [2022-03-15 15:33:32,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:32,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:32,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:32,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:32,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:32,844 INFO L87 Difference]: Start difference. First operand 5125 states and 24327 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:33,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:33,010 INFO L93 Difference]: Finished difference Result 11021 states and 49182 transitions. [2022-03-15 15:33:33,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:33,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:33,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:33,040 INFO L225 Difference]: With dead ends: 11021 [2022-03-15 15:33:33,041 INFO L226 Difference]: Without dead ends: 10544 [2022-03-15 15:33:33,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:33,041 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 147 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:33,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 214 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:33,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2022-03-15 15:33:33,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 5203. [2022-03-15 15:33:33,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.73279507881584) internal successors, (24620), 5202 states have internal predecessors, (24620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:33,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24620 transitions. [2022-03-15 15:33:33,172 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24620 transitions. Word has length 29 [2022-03-15 15:33:33,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:33,172 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24620 transitions. [2022-03-15 15:33:33,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:33,172 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24620 transitions. [2022-03-15 15:33:33,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:33,181 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:33,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:33,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable817 [2022-03-15 15:33:33,181 INFO L402 AbstractCegarLoop]: === Iteration 819 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:33,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:33,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1021906397, now seen corresponding path program 814 times [2022-03-15 15:33:33,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:33,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228510670] [2022-03-15 15:33:33,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:33,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:33,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:33,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:33,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228510670] [2022-03-15 15:33:33,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228510670] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:33,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:33,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:33,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373233209] [2022-03-15 15:33:33,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:33,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:33,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:33,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:33,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:33,358 INFO L87 Difference]: Start difference. First operand 5203 states and 24620 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:33,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:33,569 INFO L93 Difference]: Finished difference Result 11019 states and 49099 transitions. [2022-03-15 15:33:33,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:33,570 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:33,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:33,601 INFO L225 Difference]: With dead ends: 11019 [2022-03-15 15:33:33,601 INFO L226 Difference]: Without dead ends: 10466 [2022-03-15 15:33:33,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:33,602 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 153 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:33,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 223 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:33,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10466 states. [2022-03-15 15:33:33,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10466 to 5125. [2022-03-15 15:33:33,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 4.742974238875878) internal successors, (24303), 5124 states have internal predecessors, (24303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:33,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 24303 transitions. [2022-03-15 15:33:33,771 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 24303 transitions. Word has length 29 [2022-03-15 15:33:33,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:33,771 INFO L470 AbstractCegarLoop]: Abstraction has 5125 states and 24303 transitions. [2022-03-15 15:33:33,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:33,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 24303 transitions. [2022-03-15 15:33:33,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:33,782 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:33,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:33,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable818 [2022-03-15 15:33:33,782 INFO L402 AbstractCegarLoop]: === Iteration 820 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:33,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:33,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1196809665, now seen corresponding path program 815 times [2022-03-15 15:33:33,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:33,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911895638] [2022-03-15 15:33:33,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:33,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:33,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:33,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:33,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911895638] [2022-03-15 15:33:33,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911895638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:33,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:33,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:33,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618153750] [2022-03-15 15:33:33,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:33,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:33,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:33,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:33,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:33,927 INFO L87 Difference]: Start difference. First operand 5125 states and 24303 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:34,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:34,103 INFO L93 Difference]: Finished difference Result 10867 states and 48473 transitions. [2022-03-15 15:33:34,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:34,103 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:34,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:34,137 INFO L225 Difference]: With dead ends: 10867 [2022-03-15 15:33:34,137 INFO L226 Difference]: Without dead ends: 10452 [2022-03-15 15:33:34,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:34,137 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 149 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:34,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 231 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:34,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10452 states. [2022-03-15 15:33:34,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10452 to 5173. [2022-03-15 15:33:34,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.7329853054911055) internal successors, (24479), 5172 states have internal predecessors, (24479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:34,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24479 transitions. [2022-03-15 15:33:34,296 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24479 transitions. Word has length 29 [2022-03-15 15:33:34,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:34,296 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24479 transitions. [2022-03-15 15:33:34,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:34,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24479 transitions. [2022-03-15 15:33:34,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:34,307 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:34,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:34,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable819 [2022-03-15 15:33:34,307 INFO L402 AbstractCegarLoop]: === Iteration 821 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:34,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:34,308 INFO L85 PathProgramCache]: Analyzing trace with hash -2043606627, now seen corresponding path program 816 times [2022-03-15 15:33:34,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:34,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832857353] [2022-03-15 15:33:34,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:34,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:34,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:34,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832857353] [2022-03-15 15:33:34,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832857353] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:34,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:34,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:34,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739769805] [2022-03-15 15:33:34,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:34,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:34,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:34,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:34,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:34,418 INFO L87 Difference]: Start difference. First operand 5173 states and 24479 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:34,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:34,602 INFO L93 Difference]: Finished difference Result 10927 states and 48689 transitions. [2022-03-15 15:33:34,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:34,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:34,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:34,638 INFO L225 Difference]: With dead ends: 10927 [2022-03-15 15:33:34,638 INFO L226 Difference]: Without dead ends: 10372 [2022-03-15 15:33:34,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:34,638 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 139 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:34,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 220 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:34,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10372 states. [2022-03-15 15:33:34,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10372 to 5093. [2022-03-15 15:33:34,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.753142183817753) internal successors, (24203), 5092 states have internal predecessors, (24203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:34,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24203 transitions. [2022-03-15 15:33:34,799 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24203 transitions. Word has length 29 [2022-03-15 15:33:34,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:34,799 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24203 transitions. [2022-03-15 15:33:34,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:34,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24203 transitions. [2022-03-15 15:33:34,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:34,809 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:34,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:34,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable820 [2022-03-15 15:33:34,809 INFO L402 AbstractCegarLoop]: === Iteration 822 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:34,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:34,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1808257509, now seen corresponding path program 817 times [2022-03-15 15:33:34,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:34,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410297474] [2022-03-15 15:33:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:34,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:34,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:34,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:34,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410297474] [2022-03-15 15:33:34,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410297474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:34,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:34,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:34,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228604629] [2022-03-15 15:33:34,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:34,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:34,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:34,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:34,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:34,920 INFO L87 Difference]: Start difference. First operand 5093 states and 24203 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:35,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:35,127 INFO L93 Difference]: Finished difference Result 11901 states and 52981 transitions. [2022-03-15 15:33:35,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:35,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:35,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:35,165 INFO L225 Difference]: With dead ends: 11901 [2022-03-15 15:33:35,165 INFO L226 Difference]: Without dead ends: 11359 [2022-03-15 15:33:35,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:35,165 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 164 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:35,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 243 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:35,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2022-03-15 15:33:35,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 5328. [2022-03-15 15:33:35,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 4.724235029097053) internal successors, (25166), 5327 states have internal predecessors, (25166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:35,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 25166 transitions. [2022-03-15 15:33:35,338 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 25166 transitions. Word has length 29 [2022-03-15 15:33:35,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:35,338 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 25166 transitions. [2022-03-15 15:33:35,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:35,338 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 25166 transitions. [2022-03-15 15:33:35,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:35,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:35,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:35,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable821 [2022-03-15 15:33:35,349 INFO L402 AbstractCegarLoop]: === Iteration 823 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:35,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:35,350 INFO L85 PathProgramCache]: Analyzing trace with hash -727194883, now seen corresponding path program 818 times [2022-03-15 15:33:35,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:35,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407129269] [2022-03-15 15:33:35,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:35,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:35,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:35,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:35,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407129269] [2022-03-15 15:33:35,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407129269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:35,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:35,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:35,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695815865] [2022-03-15 15:33:35,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:35,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:35,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:35,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:35,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:35,491 INFO L87 Difference]: Start difference. First operand 5328 states and 25166 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:35,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:35,710 INFO L93 Difference]: Finished difference Result 11836 states and 52612 transitions. [2022-03-15 15:33:35,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:35,710 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:35,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:35,748 INFO L225 Difference]: With dead ends: 11836 [2022-03-15 15:33:35,748 INFO L226 Difference]: Without dead ends: 11216 [2022-03-15 15:33:35,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:35,748 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 164 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:35,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 224 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:35,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11216 states. [2022-03-15 15:33:35,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11216 to 5185. [2022-03-15 15:33:35,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.7436342592592595) internal successors, (24591), 5184 states have internal predecessors, (24591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:35,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24591 transitions. [2022-03-15 15:33:35,919 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24591 transitions. Word has length 29 [2022-03-15 15:33:35,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:35,920 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24591 transitions. [2022-03-15 15:33:35,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:35,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24591 transitions. [2022-03-15 15:33:35,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:35,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:35,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:35,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable822 [2022-03-15 15:33:35,930 INFO L402 AbstractCegarLoop]: === Iteration 824 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:35,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:35,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2005807741, now seen corresponding path program 819 times [2022-03-15 15:33:35,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:35,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458480775] [2022-03-15 15:33:35,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:35,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:36,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:36,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:36,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458480775] [2022-03-15 15:33:36,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458480775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:36,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:36,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:36,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298495972] [2022-03-15 15:33:36,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:36,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:36,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:36,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:36,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:36,073 INFO L87 Difference]: Start difference. First operand 5185 states and 24591 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:36,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:36,285 INFO L93 Difference]: Finished difference Result 11776 states and 52394 transitions. [2022-03-15 15:33:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:36,285 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:36,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:36,323 INFO L225 Difference]: With dead ends: 11776 [2022-03-15 15:33:36,323 INFO L226 Difference]: Without dead ends: 11234 [2022-03-15 15:33:36,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:36,324 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 171 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:36,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 235 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:36,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-03-15 15:33:36,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 5265. [2022-03-15 15:33:36,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.726253799392097) internal successors, (24879), 5264 states have internal predecessors, (24879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:36,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24879 transitions. [2022-03-15 15:33:36,500 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24879 transitions. Word has length 29 [2022-03-15 15:33:36,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:36,500 INFO L470 AbstractCegarLoop]: Abstraction has 5265 states and 24879 transitions. [2022-03-15 15:33:36,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:36,500 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24879 transitions. [2022-03-15 15:33:36,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:36,511 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:36,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:36,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable823 [2022-03-15 15:33:36,511 INFO L402 AbstractCegarLoop]: === Iteration 825 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:36,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:36,511 INFO L85 PathProgramCache]: Analyzing trace with hash 317561469, now seen corresponding path program 820 times [2022-03-15 15:33:36,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:36,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897045825] [2022-03-15 15:33:36,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:36,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:36,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:36,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:36,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897045825] [2022-03-15 15:33:36,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897045825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:36,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:36,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:36,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482125722] [2022-03-15 15:33:36,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:36,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:36,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:36,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:36,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:36,664 INFO L87 Difference]: Start difference. First operand 5265 states and 24879 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:36,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:36,889 INFO L93 Difference]: Finished difference Result 11649 states and 51787 transitions. [2022-03-15 15:33:36,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:36,889 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:36,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:36,927 INFO L225 Difference]: With dead ends: 11649 [2022-03-15 15:33:36,927 INFO L226 Difference]: Without dead ends: 11154 [2022-03-15 15:33:36,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:36,927 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 165 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:36,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 211 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:36,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11154 states. [2022-03-15 15:33:37,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11154 to 5185. [2022-03-15 15:33:37,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.7359182098765435) internal successors, (24551), 5184 states have internal predecessors, (24551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:37,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24551 transitions. [2022-03-15 15:33:37,102 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24551 transitions. Word has length 29 [2022-03-15 15:33:37,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:37,102 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24551 transitions. [2022-03-15 15:33:37,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:37,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24551 transitions. [2022-03-15 15:33:37,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:37,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:37,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:37,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable824 [2022-03-15 15:33:37,113 INFO L402 AbstractCegarLoop]: === Iteration 826 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:37,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:37,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1901154593, now seen corresponding path program 821 times [2022-03-15 15:33:37,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:37,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574940275] [2022-03-15 15:33:37,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:37,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:37,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:37,260 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:37,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574940275] [2022-03-15 15:33:37,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574940275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:37,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:37,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:37,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40376002] [2022-03-15 15:33:37,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:37,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:37,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:37,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:37,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:37,261 INFO L87 Difference]: Start difference. First operand 5185 states and 24551 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:37,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:37,457 INFO L93 Difference]: Finished difference Result 11614 states and 51694 transitions. [2022-03-15 15:33:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:37,457 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:37,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:37,496 INFO L225 Difference]: With dead ends: 11614 [2022-03-15 15:33:37,497 INFO L226 Difference]: Without dead ends: 11137 [2022-03-15 15:33:37,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:37,497 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 166 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:37,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 223 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:37,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-03-15 15:33:37,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 5233. [2022-03-15 15:33:37,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.726108562691132) internal successors, (24727), 5232 states have internal predecessors, (24727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:37,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24727 transitions. [2022-03-15 15:33:37,678 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24727 transitions. Word has length 29 [2022-03-15 15:33:37,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:37,678 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24727 transitions. [2022-03-15 15:33:37,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:37,679 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24727 transitions. [2022-03-15 15:33:37,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:37,689 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:37,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:37,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable825 [2022-03-15 15:33:37,690 INFO L402 AbstractCegarLoop]: === Iteration 827 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:37,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:37,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1547015741, now seen corresponding path program 822 times [2022-03-15 15:33:37,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:37,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958132634] [2022-03-15 15:33:37,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:37,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:37,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:37,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:37,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958132634] [2022-03-15 15:33:37,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958132634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:37,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:37,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:37,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722449181] [2022-03-15 15:33:37,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:37,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:37,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:37,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:37,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:37,812 INFO L87 Difference]: Start difference. First operand 5233 states and 24727 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:37,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:37,987 INFO L93 Difference]: Finished difference Result 11552 states and 51377 transitions. [2022-03-15 15:33:37,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:37,988 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:37,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:38,023 INFO L225 Difference]: With dead ends: 11552 [2022-03-15 15:33:38,023 INFO L226 Difference]: Without dead ends: 11033 [2022-03-15 15:33:38,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:38,024 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 165 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:38,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 197 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:38,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11033 states. [2022-03-15 15:33:38,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11033 to 5129. [2022-03-15 15:33:38,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.748634945397816) internal successors, (24351), 5128 states have internal predecessors, (24351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:38,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24351 transitions. [2022-03-15 15:33:38,175 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24351 transitions. Word has length 29 [2022-03-15 15:33:38,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:38,175 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24351 transitions. [2022-03-15 15:33:38,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:38,176 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24351 transitions. [2022-03-15 15:33:38,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:38,185 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:38,185 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:38,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable826 [2022-03-15 15:33:38,185 INFO L402 AbstractCegarLoop]: === Iteration 828 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:38,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:38,185 INFO L85 PathProgramCache]: Analyzing trace with hash -98655747, now seen corresponding path program 823 times [2022-03-15 15:33:38,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:38,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360663422] [2022-03-15 15:33:38,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:38,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:38,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:38,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:38,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360663422] [2022-03-15 15:33:38,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360663422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:38,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:38,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:38,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822460216] [2022-03-15 15:33:38,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:38,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:38,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:38,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:38,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:38,309 INFO L87 Difference]: Start difference. First operand 5129 states and 24351 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:38,482 INFO L93 Difference]: Finished difference Result 12052 states and 53640 transitions. [2022-03-15 15:33:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:38,483 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:38,525 INFO L225 Difference]: With dead ends: 12052 [2022-03-15 15:33:38,525 INFO L226 Difference]: Without dead ends: 11510 [2022-03-15 15:33:38,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:38,526 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 184 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:38,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 217 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:38,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11510 states. [2022-03-15 15:33:38,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11510 to 5359. [2022-03-15 15:33:38,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 5358 states have (on average 4.715752146323255) internal successors, (25267), 5358 states have internal predecessors, (25267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:38,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 25267 transitions. [2022-03-15 15:33:38,720 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 25267 transitions. Word has length 29 [2022-03-15 15:33:38,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:38,720 INFO L470 AbstractCegarLoop]: Abstraction has 5359 states and 25267 transitions. [2022-03-15 15:33:38,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:38,720 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 25267 transitions. [2022-03-15 15:33:38,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:38,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:38,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:38,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable827 [2022-03-15 15:33:38,734 INFO L402 AbstractCegarLoop]: === Iteration 829 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:38,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:38,734 INFO L85 PathProgramCache]: Analyzing trace with hash 982406879, now seen corresponding path program 824 times [2022-03-15 15:33:38,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:38,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479699071] [2022-03-15 15:33:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:38,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:38,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:38,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:38,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479699071] [2022-03-15 15:33:38,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479699071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:38,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:38,952 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:38,952 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433759212] [2022-03-15 15:33:38,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:38,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:38,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:38,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:38,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:38,952 INFO L87 Difference]: Start difference. First operand 5359 states and 25267 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:39,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:39,186 INFO L93 Difference]: Finished difference Result 11987 states and 53271 transitions. [2022-03-15 15:33:39,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:39,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:39,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:39,220 INFO L225 Difference]: With dead ends: 11987 [2022-03-15 15:33:39,220 INFO L226 Difference]: Without dead ends: 11367 [2022-03-15 15:33:39,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:39,221 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 163 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:39,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 216 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:39,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11367 states. [2022-03-15 15:33:39,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11367 to 5216. [2022-03-15 15:33:39,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 5215 states have (on average 4.731927133269415) internal successors, (24677), 5215 states have internal predecessors, (24677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:39,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 24677 transitions. [2022-03-15 15:33:39,388 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 24677 transitions. Word has length 29 [2022-03-15 15:33:39,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:39,388 INFO L470 AbstractCegarLoop]: Abstraction has 5216 states and 24677 transitions. [2022-03-15 15:33:39,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:39,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 24677 transitions. [2022-03-15 15:33:39,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:39,399 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:39,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:39,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable828 [2022-03-15 15:33:39,399 INFO L402 AbstractCegarLoop]: === Iteration 830 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:39,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:39,399 INFO L85 PathProgramCache]: Analyzing trace with hash 994314749, now seen corresponding path program 825 times [2022-03-15 15:33:39,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:39,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858387041] [2022-03-15 15:33:39,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:39,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:39,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:39,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:39,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858387041] [2022-03-15 15:33:39,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858387041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:39,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:39,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:39,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375855490] [2022-03-15 15:33:39,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:39,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:39,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:39,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:39,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:39,591 INFO L87 Difference]: Start difference. First operand 5216 states and 24677 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:39,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:39,810 INFO L93 Difference]: Finished difference Result 12017 states and 53449 transitions. [2022-03-15 15:33:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:39,810 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:39,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:39,850 INFO L225 Difference]: With dead ends: 12017 [2022-03-15 15:33:39,850 INFO L226 Difference]: Without dead ends: 11475 [2022-03-15 15:33:39,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:39,850 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 203 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:39,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 185 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:39,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11475 states. [2022-03-15 15:33:40,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11475 to 5326. [2022-03-15 15:33:40,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5326 states, 5325 states have (on average 4.710234741784038) internal successors, (25082), 5325 states have internal predecessors, (25082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:40,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 25082 transitions. [2022-03-15 15:33:40,033 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 25082 transitions. Word has length 29 [2022-03-15 15:33:40,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:40,033 INFO L470 AbstractCegarLoop]: Abstraction has 5326 states and 25082 transitions. [2022-03-15 15:33:40,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 25082 transitions. [2022-03-15 15:33:40,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:40,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:40,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:40,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable829 [2022-03-15 15:33:40,044 INFO L402 AbstractCegarLoop]: === Iteration 831 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:40,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:40,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1043882493, now seen corresponding path program 826 times [2022-03-15 15:33:40,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:40,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918335480] [2022-03-15 15:33:40,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:40,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:40,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:40,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:40,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918335480] [2022-03-15 15:33:40,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918335480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:40,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:40,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:40,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439659872] [2022-03-15 15:33:40,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:40,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:40,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:40,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:40,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:40,186 INFO L87 Difference]: Start difference. First operand 5326 states and 25082 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:40,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:40,382 INFO L93 Difference]: Finished difference Result 11950 states and 53076 transitions. [2022-03-15 15:33:40,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:40,382 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:40,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:40,418 INFO L225 Difference]: With dead ends: 11950 [2022-03-15 15:33:40,418 INFO L226 Difference]: Without dead ends: 11365 [2022-03-15 15:33:40,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:40,419 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 162 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:40,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 206 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:40,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11365 states. [2022-03-15 15:33:40,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11365 to 5216. [2022-03-15 15:33:40,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 5215 states have (on average 4.721380632790029) internal successors, (24622), 5215 states have internal predecessors, (24622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:40,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 24622 transitions. [2022-03-15 15:33:40,625 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 24622 transitions. Word has length 29 [2022-03-15 15:33:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:40,625 INFO L470 AbstractCegarLoop]: Abstraction has 5216 states and 24622 transitions. [2022-03-15 15:33:40,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 24622 transitions. [2022-03-15 15:33:40,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:40,636 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:40,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:40,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable830 [2022-03-15 15:33:40,636 INFO L402 AbstractCegarLoop]: === Iteration 832 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:40,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:40,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1382319711, now seen corresponding path program 827 times [2022-03-15 15:33:40,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:40,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129072589] [2022-03-15 15:33:40,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:40,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:40,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:40,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:40,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129072589] [2022-03-15 15:33:40,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129072589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:40,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:40,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:40,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122129300] [2022-03-15 15:33:40,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:40,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:40,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:40,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:40,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:40,755 INFO L87 Difference]: Start difference. First operand 5216 states and 24622 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:40,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:40,959 INFO L93 Difference]: Finished difference Result 11855 states and 52734 transitions. [2022-03-15 15:33:40,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:40,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:40,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:40,996 INFO L225 Difference]: With dead ends: 11855 [2022-03-15 15:33:40,996 INFO L226 Difference]: Without dead ends: 11378 [2022-03-15 15:33:40,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:40,997 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 159 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:40,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 233 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:41,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11378 states. [2022-03-15 15:33:41,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11378 to 5294. [2022-03-15 15:33:41,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 5293 states have (on average 4.707160400529) internal successors, (24915), 5293 states have internal predecessors, (24915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:41,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 24915 transitions. [2022-03-15 15:33:41,166 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 24915 transitions. Word has length 29 [2022-03-15 15:33:41,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:41,166 INFO L470 AbstractCegarLoop]: Abstraction has 5294 states and 24915 transitions. [2022-03-15 15:33:41,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:41,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 24915 transitions. [2022-03-15 15:33:41,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:41,177 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:41,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:41,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable831 [2022-03-15 15:33:41,178 INFO L402 AbstractCegarLoop]: === Iteration 833 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:41,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:41,178 INFO L85 PathProgramCache]: Analyzing trace with hash -733759939, now seen corresponding path program 828 times [2022-03-15 15:33:41,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:41,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821410435] [2022-03-15 15:33:41,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:41,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:41,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:41,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:41,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821410435] [2022-03-15 15:33:41,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821410435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:41,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:41,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:41,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861466187] [2022-03-15 15:33:41,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:41,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:41,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:41,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:41,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:41,297 INFO L87 Difference]: Start difference. First operand 5294 states and 24915 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:41,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:41,495 INFO L93 Difference]: Finished difference Result 11853 states and 52651 transitions. [2022-03-15 15:33:41,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:41,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:41,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:41,533 INFO L225 Difference]: With dead ends: 11853 [2022-03-15 15:33:41,533 INFO L226 Difference]: Without dead ends: 11213 [2022-03-15 15:33:41,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:41,534 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 148 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:41,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 234 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:41,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11213 states. [2022-03-15 15:33:41,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11213 to 5129. [2022-03-15 15:33:41,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.741614664586583) internal successors, (24315), 5128 states have internal predecessors, (24315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:41,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24315 transitions. [2022-03-15 15:33:41,700 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24315 transitions. Word has length 29 [2022-03-15 15:33:41,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:41,700 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24315 transitions. [2022-03-15 15:33:41,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:41,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24315 transitions. [2022-03-15 15:33:41,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:41,710 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:41,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:41,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable832 [2022-03-15 15:33:41,711 INFO L402 AbstractCegarLoop]: === Iteration 834 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:41,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:41,711 INFO L85 PathProgramCache]: Analyzing trace with hash -888042017, now seen corresponding path program 829 times [2022-03-15 15:33:41,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:41,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717103422] [2022-03-15 15:33:41,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:41,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:41,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:41,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:41,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717103422] [2022-03-15 15:33:41,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717103422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:41,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:41,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:41,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714390927] [2022-03-15 15:33:41,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:41,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:41,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:41,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:41,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:41,849 INFO L87 Difference]: Start difference. First operand 5129 states and 24315 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:42,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:42,076 INFO L93 Difference]: Finished difference Result 11725 states and 52202 transitions. [2022-03-15 15:33:42,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:42,077 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:42,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:42,113 INFO L225 Difference]: With dead ends: 11725 [2022-03-15 15:33:42,113 INFO L226 Difference]: Without dead ends: 11183 [2022-03-15 15:33:42,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:42,113 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 152 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:42,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 242 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:42,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11183 states. [2022-03-15 15:33:42,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11183 to 5249. [2022-03-15 15:33:42,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.726943597560975) internal successors, (24807), 5248 states have internal predecessors, (24807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:42,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24807 transitions. [2022-03-15 15:33:42,281 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24807 transitions. Word has length 29 [2022-03-15 15:33:42,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:42,281 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 24807 transitions. [2022-03-15 15:33:42,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:42,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24807 transitions. [2022-03-15 15:33:42,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:42,292 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:42,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:42,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable833 [2022-03-15 15:33:42,292 INFO L402 AbstractCegarLoop]: === Iteration 835 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:42,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:42,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1718679007, now seen corresponding path program 830 times [2022-03-15 15:33:42,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:42,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703877381] [2022-03-15 15:33:42,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:42,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:42,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:42,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:42,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703877381] [2022-03-15 15:33:42,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703877381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:42,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:42,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:42,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528987218] [2022-03-15 15:33:42,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:42,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:42,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:42,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:42,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:42,439 INFO L87 Difference]: Start difference. First operand 5249 states and 24807 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:42,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:42,636 INFO L93 Difference]: Finished difference Result 11598 states and 51595 transitions. [2022-03-15 15:33:42,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:42,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:42,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:42,673 INFO L225 Difference]: With dead ends: 11598 [2022-03-15 15:33:42,673 INFO L226 Difference]: Without dead ends: 11103 [2022-03-15 15:33:42,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:42,673 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 171 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:42,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 199 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:42,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11103 states. [2022-03-15 15:33:42,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11103 to 5169. [2022-03-15 15:33:42,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.736648606811145) internal successors, (24479), 5168 states have internal predecessors, (24479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24479 transitions. [2022-03-15 15:33:42,836 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24479 transitions. Word has length 29 [2022-03-15 15:33:42,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:42,837 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24479 transitions. [2022-03-15 15:33:42,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:42,837 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24479 transitions. [2022-03-15 15:33:42,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:42,846 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:42,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:42,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable834 [2022-03-15 15:33:42,846 INFO L402 AbstractCegarLoop]: === Iteration 836 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:42,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:42,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1383863741, now seen corresponding path program 831 times [2022-03-15 15:33:42,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:42,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221658074] [2022-03-15 15:33:42,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:42,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:42,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:42,986 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:42,986 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221658074] [2022-03-15 15:33:42,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221658074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:42,986 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:42,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:42,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623873229] [2022-03-15 15:33:42,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:42,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:42,986 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:42,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:42,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:42,987 INFO L87 Difference]: Start difference. First operand 5169 states and 24479 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:43,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:43,192 INFO L93 Difference]: Finished difference Result 11815 states and 52573 transitions. [2022-03-15 15:33:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:43,192 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:43,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:43,233 INFO L225 Difference]: With dead ends: 11815 [2022-03-15 15:33:43,233 INFO L226 Difference]: Without dead ends: 11273 [2022-03-15 15:33:43,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:43,233 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:43,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 215 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:43,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11273 states. [2022-03-15 15:33:43,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11273 to 5279. [2022-03-15 15:33:43,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 4.714664645699129) internal successors, (24884), 5278 states have internal predecessors, (24884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:43,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 24884 transitions. [2022-03-15 15:33:43,391 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 24884 transitions. Word has length 29 [2022-03-15 15:33:43,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:43,391 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 24884 transitions. [2022-03-15 15:33:43,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:43,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 24884 transitions. [2022-03-15 15:33:43,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:43,401 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:43,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:43,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable835 [2022-03-15 15:33:43,401 INFO L402 AbstractCegarLoop]: === Iteration 837 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:43,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:43,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1541483041, now seen corresponding path program 832 times [2022-03-15 15:33:43,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:43,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316173829] [2022-03-15 15:33:43,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:43,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:43,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:43,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:43,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316173829] [2022-03-15 15:33:43,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316173829] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:43,543 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:43,543 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:43,543 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786261484] [2022-03-15 15:33:43,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:43,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:43,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:43,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:43,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:43,544 INFO L87 Difference]: Start difference. First operand 5279 states and 24884 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:43,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:43,773 INFO L93 Difference]: Finished difference Result 11748 states and 52200 transitions. [2022-03-15 15:33:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:43,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:43,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:43,809 INFO L225 Difference]: With dead ends: 11748 [2022-03-15 15:33:43,810 INFO L226 Difference]: Without dead ends: 11163 [2022-03-15 15:33:43,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:43,810 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 162 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:43,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 233 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:43,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11163 states. [2022-03-15 15:33:43,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11163 to 5169. [2022-03-15 15:33:43,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.72890866873065) internal successors, (24439), 5168 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:43,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24439 transitions. [2022-03-15 15:33:43,973 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24439 transitions. Word has length 29 [2022-03-15 15:33:43,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:43,974 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24439 transitions. [2022-03-15 15:33:43,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:43,974 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24439 transitions. [2022-03-15 15:33:43,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:43,984 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:43,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:43,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable836 [2022-03-15 15:33:43,985 INFO L402 AbstractCegarLoop]: === Iteration 838 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:43,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:43,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2108640735, now seen corresponding path program 833 times [2022-03-15 15:33:43,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:43,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153826780] [2022-03-15 15:33:43,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:43,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:44,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:44,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:44,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153826780] [2022-03-15 15:33:44,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153826780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:44,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:44,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:44,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602969270] [2022-03-15 15:33:44,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:44,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:44,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:44,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:44,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:44,135 INFO L87 Difference]: Start difference. First operand 5169 states and 24439 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:44,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:44,341 INFO L93 Difference]: Finished difference Result 11499 states and 51188 transitions. [2022-03-15 15:33:44,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:44,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:44,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:44,379 INFO L225 Difference]: With dead ends: 11499 [2022-03-15 15:33:44,379 INFO L226 Difference]: Without dead ends: 11084 [2022-03-15 15:33:44,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:44,379 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 151 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:44,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 261 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:44,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11084 states. [2022-03-15 15:33:44,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11084 to 5217. [2022-03-15 15:33:44,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.7191334355828225) internal successors, (24615), 5216 states have internal predecessors, (24615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:44,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24615 transitions. [2022-03-15 15:33:44,532 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24615 transitions. Word has length 29 [2022-03-15 15:33:44,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:44,532 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24615 transitions. [2022-03-15 15:33:44,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:44,532 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24615 transitions. [2022-03-15 15:33:44,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:44,542 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:44,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:44,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable837 [2022-03-15 15:33:44,542 INFO L402 AbstractCegarLoop]: === Iteration 839 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:44,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:44,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1261843773, now seen corresponding path program 834 times [2022-03-15 15:33:44,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:44,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357979446] [2022-03-15 15:33:44,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:44,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:44,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:44,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357979446] [2022-03-15 15:33:44,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357979446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:44,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:44,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:44,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320294804] [2022-03-15 15:33:44,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:44,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:44,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:44,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:44,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:44,656 INFO L87 Difference]: Start difference. First operand 5217 states and 24615 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:44,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:44,827 INFO L93 Difference]: Finished difference Result 11559 states and 51404 transitions. [2022-03-15 15:33:44,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:44,827 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:44,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:44,861 INFO L225 Difference]: With dead ends: 11559 [2022-03-15 15:33:44,862 INFO L226 Difference]: Without dead ends: 10996 [2022-03-15 15:33:44,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:44,862 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:44,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 218 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:44,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10996 states. [2022-03-15 15:33:44,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10996 to 5129. [2022-03-15 15:33:44,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.737714508580344) internal successors, (24295), 5128 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:45,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24295 transitions. [2022-03-15 15:33:45,012 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24295 transitions. Word has length 29 [2022-03-15 15:33:45,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:45,012 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24295 transitions. [2022-03-15 15:33:45,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:45,012 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24295 transitions. [2022-03-15 15:33:45,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:45,022 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:45,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:45,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable838 [2022-03-15 15:33:45,023 INFO L402 AbstractCegarLoop]: === Iteration 840 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:45,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:45,023 INFO L85 PathProgramCache]: Analyzing trace with hash -808521279, now seen corresponding path program 835 times [2022-03-15 15:33:45,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:45,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371145928] [2022-03-15 15:33:45,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:45,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:45,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:45,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:45,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371145928] [2022-03-15 15:33:45,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371145928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:45,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:45,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:45,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168783047] [2022-03-15 15:33:45,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:45,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:45,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:45,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:45,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:45,139 INFO L87 Difference]: Start difference. First operand 5129 states and 24295 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:45,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:45,303 INFO L93 Difference]: Finished difference Result 11418 states and 50896 transitions. [2022-03-15 15:33:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:45,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:45,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:45,338 INFO L225 Difference]: With dead ends: 11418 [2022-03-15 15:33:45,338 INFO L226 Difference]: Without dead ends: 10941 [2022-03-15 15:33:45,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:45,338 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 170 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:45,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 200 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:45,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10941 states. [2022-03-15 15:33:45,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10941 to 5201. [2022-03-15 15:33:45,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.729807692307692) internal successors, (24595), 5200 states have internal predecessors, (24595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:45,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24595 transitions. [2022-03-15 15:33:45,487 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24595 transitions. Word has length 29 [2022-03-15 15:33:45,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:45,488 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24595 transitions. [2022-03-15 15:33:45,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:45,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24595 transitions. [2022-03-15 15:33:45,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:45,498 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:45,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:45,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable839 [2022-03-15 15:33:45,498 INFO L402 AbstractCegarLoop]: === Iteration 841 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:45,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:45,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1655318241, now seen corresponding path program 836 times [2022-03-15 15:33:45,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:45,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576618763] [2022-03-15 15:33:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:45,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:45,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:45,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:45,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576618763] [2022-03-15 15:33:45,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576618763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:45,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:45,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:45,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718444196] [2022-03-15 15:33:45,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:45,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:45,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:45,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:45,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:45,613 INFO L87 Difference]: Start difference. First operand 5201 states and 24595 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:45,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:45,795 INFO L93 Difference]: Finished difference Result 11356 states and 50579 transitions. [2022-03-15 15:33:45,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:45,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:45,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:45,833 INFO L225 Difference]: With dead ends: 11356 [2022-03-15 15:33:45,833 INFO L226 Difference]: Without dead ends: 10893 [2022-03-15 15:33:45,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:45,834 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 161 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:45,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 223 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:45,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10893 states. [2022-03-15 15:33:45,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10893 to 5153. [2022-03-15 15:33:45,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.735054347826087) internal successors, (24395), 5152 states have internal predecessors, (24395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:45,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24395 transitions. [2022-03-15 15:33:45,980 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24395 transitions. Word has length 29 [2022-03-15 15:33:45,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:45,980 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24395 transitions. [2022-03-15 15:33:45,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:45,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24395 transitions. [2022-03-15 15:33:45,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:45,990 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:45,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:45,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable840 [2022-03-15 15:33:45,990 INFO L402 AbstractCegarLoop]: === Iteration 842 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:45,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:45,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1463384479, now seen corresponding path program 837 times [2022-03-15 15:33:45,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:45,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647556247] [2022-03-15 15:33:45,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:45,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:46,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:46,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:46,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647556247] [2022-03-15 15:33:46,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647556247] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:46,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:46,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:46,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383494186] [2022-03-15 15:33:46,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:46,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:46,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:46,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:46,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:46,119 INFO L87 Difference]: Start difference. First operand 5153 states and 24395 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:46,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:46,286 INFO L93 Difference]: Finished difference Result 11508 states and 51283 transitions. [2022-03-15 15:33:46,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:46,287 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:46,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:46,321 INFO L225 Difference]: With dead ends: 11508 [2022-03-15 15:33:46,321 INFO L226 Difference]: Without dead ends: 11031 [2022-03-15 15:33:46,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:46,321 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 158 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:46,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 218 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:46,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11031 states. [2022-03-15 15:33:46,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11031 to 5231. [2022-03-15 15:33:46,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5231 states, 5230 states have (on average 4.720458891013385) internal successors, (24688), 5230 states have internal predecessors, (24688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:46,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5231 states to 5231 states and 24688 transitions. [2022-03-15 15:33:46,480 INFO L78 Accepts]: Start accepts. Automaton has 5231 states and 24688 transitions. Word has length 29 [2022-03-15 15:33:46,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:46,480 INFO L470 AbstractCegarLoop]: Abstraction has 5231 states and 24688 transitions. [2022-03-15 15:33:46,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:46,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5231 states and 24688 transitions. [2022-03-15 15:33:46,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:46,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:46,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:46,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable841 [2022-03-15 15:33:46,494 INFO L402 AbstractCegarLoop]: === Iteration 843 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:46,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:46,494 INFO L85 PathProgramCache]: Analyzing trace with hash 667357599, now seen corresponding path program 838 times [2022-03-15 15:33:46,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:46,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070908992] [2022-03-15 15:33:46,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:46,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:46,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:46,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:46,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070908992] [2022-03-15 15:33:46,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070908992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:46,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:46,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:46,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118404887] [2022-03-15 15:33:46,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:46,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:46,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:46,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:46,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:46,681 INFO L87 Difference]: Start difference. First operand 5231 states and 24688 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:46,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:46,905 INFO L93 Difference]: Finished difference Result 11506 states and 51200 transitions. [2022-03-15 15:33:46,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:46,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:46,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:46,940 INFO L225 Difference]: With dead ends: 11506 [2022-03-15 15:33:46,940 INFO L226 Difference]: Without dead ends: 10953 [2022-03-15 15:33:46,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:46,940 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:46,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 212 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:46,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10953 states. [2022-03-15 15:33:47,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10953 to 5153. [2022-03-15 15:33:47,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.730395962732919) internal successors, (24371), 5152 states have internal predecessors, (24371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:47,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24371 transitions. [2022-03-15 15:33:47,197 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24371 transitions. Word has length 29 [2022-03-15 15:33:47,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:47,197 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24371 transitions. [2022-03-15 15:33:47,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:47,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24371 transitions. [2022-03-15 15:33:47,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:47,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:47,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:47,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable842 [2022-03-15 15:33:47,206 INFO L402 AbstractCegarLoop]: === Iteration 844 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:47,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:47,207 INFO L85 PathProgramCache]: Analyzing trace with hash 606636413, now seen corresponding path program 839 times [2022-03-15 15:33:47,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:47,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503796130] [2022-03-15 15:33:47,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:47,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:47,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:47,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:47,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503796130] [2022-03-15 15:33:47,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503796130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:47,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:47,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:47,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501753909] [2022-03-15 15:33:47,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:47,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:47,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:47,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:47,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:47,371 INFO L87 Difference]: Start difference. First operand 5153 states and 24371 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:47,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:47,568 INFO L93 Difference]: Finished difference Result 11354 states and 50574 transitions. [2022-03-15 15:33:47,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:47,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:47,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:47,601 INFO L225 Difference]: With dead ends: 11354 [2022-03-15 15:33:47,601 INFO L226 Difference]: Without dead ends: 10939 [2022-03-15 15:33:47,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:47,601 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 165 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:47,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 213 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:47,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2022-03-15 15:33:47,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5201. [2022-03-15 15:33:47,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.720576923076923) internal successors, (24547), 5200 states have internal predecessors, (24547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24547 transitions. [2022-03-15 15:33:47,749 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24547 transitions. Word has length 29 [2022-03-15 15:33:47,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:47,749 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24547 transitions. [2022-03-15 15:33:47,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:47,749 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24547 transitions. [2022-03-15 15:33:47,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:47,760 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:47,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:47,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable843 [2022-03-15 15:33:47,760 INFO L402 AbstractCegarLoop]: === Iteration 845 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:47,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:47,760 INFO L85 PathProgramCache]: Analyzing trace with hash 125734367, now seen corresponding path program 840 times [2022-03-15 15:33:47,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:47,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36814793] [2022-03-15 15:33:47,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:47,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:47,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:47,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:47,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36814793] [2022-03-15 15:33:47,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36814793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:47,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:47,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:47,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534731618] [2022-03-15 15:33:47,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:47,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:47,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:47,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:47,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:47,931 INFO L87 Difference]: Start difference. First operand 5201 states and 24547 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:48,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:48,193 INFO L93 Difference]: Finished difference Result 11414 states and 50790 transitions. [2022-03-15 15:33:48,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:48,194 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:48,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:48,230 INFO L225 Difference]: With dead ends: 11414 [2022-03-15 15:33:48,231 INFO L226 Difference]: Without dead ends: 10815 [2022-03-15 15:33:48,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:48,231 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 139 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:48,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 245 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:33:48,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10815 states. [2022-03-15 15:33:48,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10815 to 5077. [2022-03-15 15:33:48,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5077 states, 5076 states have (on average 4.757880220646178) internal successors, (24151), 5076 states have internal predecessors, (24151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:48,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5077 states to 5077 states and 24151 transitions. [2022-03-15 15:33:48,394 INFO L78 Accepts]: Start accepts. Automaton has 5077 states and 24151 transitions. Word has length 29 [2022-03-15 15:33:48,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:48,394 INFO L470 AbstractCegarLoop]: Abstraction has 5077 states and 24151 transitions. [2022-03-15 15:33:48,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:48,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5077 states and 24151 transitions. [2022-03-15 15:33:48,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:48,404 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:48,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:48,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable844 [2022-03-15 15:33:48,405 INFO L402 AbstractCegarLoop]: === Iteration 846 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:48,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:48,405 INFO L85 PathProgramCache]: Analyzing trace with hash -673929311, now seen corresponding path program 841 times [2022-03-15 15:33:48,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:48,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422985677] [2022-03-15 15:33:48,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:48,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:48,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:48,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422985677] [2022-03-15 15:33:48,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422985677] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:48,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:48,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:48,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721349064] [2022-03-15 15:33:48,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:48,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:48,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:48,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:48,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:48,573 INFO L87 Difference]: Start difference. First operand 5077 states and 24151 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:48,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:48,806 INFO L93 Difference]: Finished difference Result 11829 states and 52913 transitions. [2022-03-15 15:33:48,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:48,806 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:48,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:48,845 INFO L225 Difference]: With dead ends: 11829 [2022-03-15 15:33:48,845 INFO L226 Difference]: Without dead ends: 11414 [2022-03-15 15:33:48,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:48,845 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 181 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:48,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 213 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:48,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2022-03-15 15:33:48,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 5267. [2022-03-15 15:33:48,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 4.749715153816939) internal successors, (25012), 5266 states have internal predecessors, (25012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:49,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 25012 transitions. [2022-03-15 15:33:49,017 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 25012 transitions. Word has length 29 [2022-03-15 15:33:49,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:49,018 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 25012 transitions. [2022-03-15 15:33:49,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:49,018 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 25012 transitions. [2022-03-15 15:33:49,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:49,029 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:49,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:49,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable845 [2022-03-15 15:33:49,029 INFO L402 AbstractCegarLoop]: === Iteration 847 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:49,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:49,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1659133341, now seen corresponding path program 842 times [2022-03-15 15:33:49,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:49,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818166375] [2022-03-15 15:33:49,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:49,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:49,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:49,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:49,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818166375] [2022-03-15 15:33:49,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818166375] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:49,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:49,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:49,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979193201] [2022-03-15 15:33:49,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:49,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:49,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:49,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:49,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:49,201 INFO L87 Difference]: Start difference. First operand 5267 states and 25012 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:49,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:49,439 INFO L93 Difference]: Finished difference Result 11956 states and 53392 transitions. [2022-03-15 15:33:49,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:49,439 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:49,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:49,477 INFO L225 Difference]: With dead ends: 11956 [2022-03-15 15:33:49,477 INFO L226 Difference]: Without dead ends: 11334 [2022-03-15 15:33:49,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:49,478 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 162 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:49,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 232 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:33:49,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-03-15 15:33:49,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 5187. [2022-03-15 15:33:49,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.753567296567682) internal successors, (24652), 5186 states have internal predecessors, (24652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:49,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24652 transitions. [2022-03-15 15:33:49,649 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24652 transitions. Word has length 29 [2022-03-15 15:33:49,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:49,649 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24652 transitions. [2022-03-15 15:33:49,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:49,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24652 transitions. [2022-03-15 15:33:49,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:49,660 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:49,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:49,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable846 [2022-03-15 15:33:49,660 INFO L402 AbstractCegarLoop]: === Iteration 848 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:49,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:49,660 INFO L85 PathProgramCache]: Analyzing trace with hash -893731167, now seen corresponding path program 843 times [2022-03-15 15:33:49,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:49,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507920509] [2022-03-15 15:33:49,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:49,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:49,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:49,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:49,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507920509] [2022-03-15 15:33:49,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507920509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:49,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:49,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:49,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476736101] [2022-03-15 15:33:49,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:49,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:49,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:49,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:49,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:49,839 INFO L87 Difference]: Start difference. First operand 5187 states and 24652 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:50,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:50,086 INFO L93 Difference]: Finished difference Result 11732 states and 52471 transitions. [2022-03-15 15:33:50,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:50,086 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:50,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:50,124 INFO L225 Difference]: With dead ends: 11732 [2022-03-15 15:33:50,124 INFO L226 Difference]: Without dead ends: 11317 [2022-03-15 15:33:50,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:50,124 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 175 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:50,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 233 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:50,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11317 states. [2022-03-15 15:33:50,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11317 to 5235. [2022-03-15 15:33:50,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.7435995414596865) internal successors, (24828), 5234 states have internal predecessors, (24828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:50,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24828 transitions. [2022-03-15 15:33:50,300 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24828 transitions. Word has length 29 [2022-03-15 15:33:50,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:50,300 INFO L470 AbstractCegarLoop]: Abstraction has 5235 states and 24828 transitions. [2022-03-15 15:33:50,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:50,300 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24828 transitions. [2022-03-15 15:33:50,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:50,311 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:50,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:50,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable847 [2022-03-15 15:33:50,311 INFO L402 AbstractCegarLoop]: === Iteration 849 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:50,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:50,311 INFO L85 PathProgramCache]: Analyzing trace with hash -664444157, now seen corresponding path program 844 times [2022-03-15 15:33:50,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:50,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353152794] [2022-03-15 15:33:50,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:50,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:50,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:50,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353152794] [2022-03-15 15:33:50,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353152794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:50,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:50,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:50,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21271512] [2022-03-15 15:33:50,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:50,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:50,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:50,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:50,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:50,489 INFO L87 Difference]: Start difference. First operand 5235 states and 24828 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:50,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:50,722 INFO L93 Difference]: Finished difference Result 11794 states and 52692 transitions. [2022-03-15 15:33:50,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:50,722 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:50,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:50,758 INFO L225 Difference]: With dead ends: 11794 [2022-03-15 15:33:50,758 INFO L226 Difference]: Without dead ends: 11269 [2022-03-15 15:33:50,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:50,759 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 170 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:50,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 214 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:50,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11269 states. [2022-03-15 15:33:50,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11269 to 5187. [2022-03-15 15:33:50,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.74893945237177) internal successors, (24628), 5186 states have internal predecessors, (24628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:50,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24628 transitions. [2022-03-15 15:33:50,925 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24628 transitions. Word has length 29 [2022-03-15 15:33:50,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:50,926 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24628 transitions. [2022-03-15 15:33:50,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:50,926 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24628 transitions. [2022-03-15 15:33:50,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:50,936 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:50,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:50,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable848 [2022-03-15 15:33:50,937 INFO L402 AbstractCegarLoop]: === Iteration 850 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:50,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:50,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1070056773, now seen corresponding path program 845 times [2022-03-15 15:33:50,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:50,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081708122] [2022-03-15 15:33:50,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:50,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:51,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:51,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:51,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081708122] [2022-03-15 15:33:51,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081708122] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:51,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:51,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:51,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795304947] [2022-03-15 15:33:51,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:51,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:51,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:51,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:51,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:51,118 INFO L87 Difference]: Start difference. First operand 5187 states and 24628 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:51,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:51,323 INFO L93 Difference]: Finished difference Result 12081 states and 53907 transitions. [2022-03-15 15:33:51,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:51,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:51,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:51,361 INFO L225 Difference]: With dead ends: 12081 [2022-03-15 15:33:51,361 INFO L226 Difference]: Without dead ends: 11539 [2022-03-15 15:33:51,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:51,361 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 197 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:51,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 194 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:51,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11539 states. [2022-03-15 15:33:51,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11539 to 5330. [2022-03-15 15:33:51,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5329 states have (on average 4.718896603490336) internal successors, (25147), 5329 states have internal predecessors, (25147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:51,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 25147 transitions. [2022-03-15 15:33:51,537 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 25147 transitions. Word has length 29 [2022-03-15 15:33:51,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:51,537 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 25147 transitions. [2022-03-15 15:33:51,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:51,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 25147 transitions. [2022-03-15 15:33:51,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:51,547 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:51,548 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:51,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable849 [2022-03-15 15:33:51,548 INFO L402 AbstractCegarLoop]: === Iteration 851 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:51,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:51,548 INFO L85 PathProgramCache]: Analyzing trace with hash -973280221, now seen corresponding path program 846 times [2022-03-15 15:33:51,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:51,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927202791] [2022-03-15 15:33:51,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:51,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:51,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:51,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927202791] [2022-03-15 15:33:51,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927202791] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:51,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:51,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:51,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838404714] [2022-03-15 15:33:51,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:51,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:51,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:51,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:51,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:51,721 INFO L87 Difference]: Start difference. First operand 5330 states and 25147 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:51,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:51,967 INFO L93 Difference]: Finished difference Result 12016 states and 53538 transitions. [2022-03-15 15:33:51,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:51,967 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:51,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:52,010 INFO L225 Difference]: With dead ends: 12016 [2022-03-15 15:33:52,010 INFO L226 Difference]: Without dead ends: 11340 [2022-03-15 15:33:52,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:52,010 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 161 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:52,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 214 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:52,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11340 states. [2022-03-15 15:33:52,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11340 to 5131. [2022-03-15 15:33:52,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.7555555555555555) internal successors, (24396), 5130 states have internal predecessors, (24396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:52,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24396 transitions. [2022-03-15 15:33:52,189 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24396 transitions. Word has length 29 [2022-03-15 15:33:52,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:52,189 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24396 transitions. [2022-03-15 15:33:52,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:52,189 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24396 transitions. [2022-03-15 15:33:52,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:52,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:52,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:52,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable850 [2022-03-15 15:33:52,200 INFO L402 AbstractCegarLoop]: === Iteration 852 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:52,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:52,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1582949187, now seen corresponding path program 847 times [2022-03-15 15:33:52,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:52,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523147380] [2022-03-15 15:33:52,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:52,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:52,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:52,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:52,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523147380] [2022-03-15 15:33:52,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523147380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:52,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:52,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:52,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435688133] [2022-03-15 15:33:52,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:52,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:52,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:52,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:52,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:52,322 INFO L87 Difference]: Start difference. First operand 5131 states and 24396 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:52,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:52,517 INFO L93 Difference]: Finished difference Result 11778 states and 52701 transitions. [2022-03-15 15:33:52,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:52,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:52,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:52,556 INFO L225 Difference]: With dead ends: 11778 [2022-03-15 15:33:52,557 INFO L226 Difference]: Without dead ends: 11363 [2022-03-15 15:33:52,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:52,557 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:52,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 232 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:52,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11363 states. [2022-03-15 15:33:52,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11363 to 5251. [2022-03-15 15:33:52,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.746666666666667) internal successors, (24920), 5250 states have internal predecessors, (24920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:52,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24920 transitions. [2022-03-15 15:33:52,731 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24920 transitions. Word has length 29 [2022-03-15 15:33:52,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:52,731 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24920 transitions. [2022-03-15 15:33:52,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:52,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24920 transitions. [2022-03-15 15:33:52,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:52,755 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:52,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:52,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable851 [2022-03-15 15:33:52,756 INFO L402 AbstractCegarLoop]: === Iteration 853 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:52,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:52,756 INFO L85 PathProgramCache]: Analyzing trace with hash 597745157, now seen corresponding path program 848 times [2022-03-15 15:33:52,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:52,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627825024] [2022-03-15 15:33:52,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:52,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:52,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:52,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:52,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627825024] [2022-03-15 15:33:52,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627825024] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:52,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:52,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:52,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564161778] [2022-03-15 15:33:52,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:52,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:52,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:52,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:52,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:52,874 INFO L87 Difference]: Start difference. First operand 5251 states and 24920 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:53,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:53,061 INFO L93 Difference]: Finished difference Result 11905 states and 53180 transitions. [2022-03-15 15:33:53,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:53,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:53,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:53,099 INFO L225 Difference]: With dead ends: 11905 [2022-03-15 15:33:53,099 INFO L226 Difference]: Without dead ends: 11283 [2022-03-15 15:33:53,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:53,099 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 170 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:53,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 205 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:53,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11283 states. [2022-03-15 15:33:53,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11283 to 5171. [2022-03-15 15:33:53,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.750483558994198) internal successors, (24560), 5170 states have internal predecessors, (24560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:53,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24560 transitions. [2022-03-15 15:33:53,268 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24560 transitions. Word has length 29 [2022-03-15 15:33:53,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:53,268 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24560 transitions. [2022-03-15 15:33:53,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:53,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24560 transitions. [2022-03-15 15:33:53,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:53,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:53,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:53,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable852 [2022-03-15 15:33:53,279 INFO L402 AbstractCegarLoop]: === Iteration 854 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash -304554271, now seen corresponding path program 849 times [2022-03-15 15:33:53,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:53,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865059596] [2022-03-15 15:33:53,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:53,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:53,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:53,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:53,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865059596] [2022-03-15 15:33:53,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865059596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:53,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:53,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:53,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846101730] [2022-03-15 15:33:53,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:53,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:53,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:53,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:53,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:53,421 INFO L87 Difference]: Start difference. First operand 5171 states and 24560 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:53,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:53,646 INFO L93 Difference]: Finished difference Result 11679 states and 52254 transitions. [2022-03-15 15:33:53,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:53,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:53,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:53,684 INFO L225 Difference]: With dead ends: 11679 [2022-03-15 15:33:53,684 INFO L226 Difference]: Without dead ends: 11264 [2022-03-15 15:33:53,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:53,684 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 171 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:53,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 199 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:53,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11264 states. [2022-03-15 15:33:53,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11264 to 5219. [2022-03-15 15:33:53,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.740513606745879) internal successors, (24736), 5218 states have internal predecessors, (24736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24736 transitions. [2022-03-15 15:33:53,861 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24736 transitions. Word has length 29 [2022-03-15 15:33:53,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:53,861 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24736 transitions. [2022-03-15 15:33:53,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:53,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24736 transitions. [2022-03-15 15:33:53,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:53,872 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:53,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:53,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable853 [2022-03-15 15:33:53,872 INFO L402 AbstractCegarLoop]: === Iteration 855 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:53,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:53,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1306611133, now seen corresponding path program 850 times [2022-03-15 15:33:53,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:53,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042497041] [2022-03-15 15:33:53,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:53,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:54,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:54,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042497041] [2022-03-15 15:33:54,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042497041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:54,067 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:54,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:54,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055195673] [2022-03-15 15:33:54,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:54,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:54,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:54,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:54,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:54,068 INFO L87 Difference]: Start difference. First operand 5219 states and 24736 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:54,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:54,284 INFO L93 Difference]: Finished difference Result 11739 states and 52470 transitions. [2022-03-15 15:33:54,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:54,285 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:54,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:54,323 INFO L225 Difference]: With dead ends: 11739 [2022-03-15 15:33:54,323 INFO L226 Difference]: Without dead ends: 11216 [2022-03-15 15:33:54,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:54,323 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:54,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 217 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:54,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11216 states. [2022-03-15 15:33:54,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11216 to 5171. [2022-03-15 15:33:54,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.745841392649903) internal successors, (24536), 5170 states have internal predecessors, (24536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:54,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24536 transitions. [2022-03-15 15:33:54,491 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24536 transitions. Word has length 29 [2022-03-15 15:33:54,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:54,491 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24536 transitions. [2022-03-15 15:33:54,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:54,491 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24536 transitions. [2022-03-15 15:33:54,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:54,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:54,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:54,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable854 [2022-03-15 15:33:54,502 INFO L402 AbstractCegarLoop]: === Iteration 856 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:54,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:54,502 INFO L85 PathProgramCache]: Analyzing trace with hash -916507515, now seen corresponding path program 851 times [2022-03-15 15:33:54,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:54,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116820095] [2022-03-15 15:33:54,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:54,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:54,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:54,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:54,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116820095] [2022-03-15 15:33:54,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116820095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:54,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:54,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:54,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101774505] [2022-03-15 15:33:54,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:54,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:54,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:54,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:54,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:54,702 INFO L87 Difference]: Start difference. First operand 5171 states and 24536 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:54,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:54,914 INFO L93 Difference]: Finished difference Result 11995 states and 53575 transitions. [2022-03-15 15:33:54,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:54,914 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:54,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:54,955 INFO L225 Difference]: With dead ends: 11995 [2022-03-15 15:33:54,955 INFO L226 Difference]: Without dead ends: 11453 [2022-03-15 15:33:54,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:54,955 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 174 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:54,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 197 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:54,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11453 states. [2022-03-15 15:33:55,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11453 to 5281. [2022-03-15 15:33:55,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 4.723674242424242) internal successors, (24941), 5280 states have internal predecessors, (24941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:55,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 24941 transitions. [2022-03-15 15:33:55,129 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 24941 transitions. Word has length 29 [2022-03-15 15:33:55,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:55,129 INFO L470 AbstractCegarLoop]: Abstraction has 5281 states and 24941 transitions. [2022-03-15 15:33:55,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:55,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 24941 transitions. [2022-03-15 15:33:55,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:55,139 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:55,139 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:55,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable855 [2022-03-15 15:33:55,140 INFO L402 AbstractCegarLoop]: === Iteration 857 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:55,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:55,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1657459613, now seen corresponding path program 852 times [2022-03-15 15:33:55,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:55,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706944917] [2022-03-15 15:33:55,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:55,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:55,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:55,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:55,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706944917] [2022-03-15 15:33:55,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706944917] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:55,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:55,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:55,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083238350] [2022-03-15 15:33:55,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:55,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:55,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:55,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:55,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:55,305 INFO L87 Difference]: Start difference. First operand 5281 states and 24941 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:55,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:55,522 INFO L93 Difference]: Finished difference Result 11928 states and 53202 transitions. [2022-03-15 15:33:55,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:55,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:55,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:55,560 INFO L225 Difference]: With dead ends: 11928 [2022-03-15 15:33:55,560 INFO L226 Difference]: Without dead ends: 11303 [2022-03-15 15:33:55,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:55,560 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 154 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:55,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 222 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:55,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11303 states. [2022-03-15 15:33:55,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11303 to 5131. [2022-03-15 15:33:55,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.751656920077973) internal successors, (24376), 5130 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:55,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24376 transitions. [2022-03-15 15:33:55,727 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24376 transitions. Word has length 29 [2022-03-15 15:33:55,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:55,727 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24376 transitions. [2022-03-15 15:33:55,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:55,727 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24376 transitions. [2022-03-15 15:33:55,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:55,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:55,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:55,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable856 [2022-03-15 15:33:55,737 INFO L402 AbstractCegarLoop]: === Iteration 858 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:55,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:55,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1451026975, now seen corresponding path program 853 times [2022-03-15 15:33:55,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:55,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499282376] [2022-03-15 15:33:55,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:55,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:55,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:55,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:55,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499282376] [2022-03-15 15:33:55,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499282376] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:55,875 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:55,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:55,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472230668] [2022-03-15 15:33:55,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:55,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:55,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:55,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:55,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:55,875 INFO L87 Difference]: Start difference. First operand 5131 states and 24376 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:56,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:56,091 INFO L93 Difference]: Finished difference Result 11536 states and 51653 transitions. [2022-03-15 15:33:56,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:56,091 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:56,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:56,126 INFO L225 Difference]: With dead ends: 11536 [2022-03-15 15:33:56,126 INFO L226 Difference]: Without dead ends: 11121 [2022-03-15 15:33:56,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:56,126 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 169 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:56,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 225 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:56,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2022-03-15 15:33:56,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 5203. [2022-03-15 15:33:56,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.743560169165706) internal successors, (24676), 5202 states have internal predecessors, (24676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:56,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24676 transitions. [2022-03-15 15:33:56,275 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24676 transitions. Word has length 29 [2022-03-15 15:33:56,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:56,276 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24676 transitions. [2022-03-15 15:33:56,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:56,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24676 transitions. [2022-03-15 15:33:56,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:56,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:56,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:56,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable857 [2022-03-15 15:33:56,286 INFO L402 AbstractCegarLoop]: === Iteration 859 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:56,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:56,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1221739965, now seen corresponding path program 854 times [2022-03-15 15:33:56,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:56,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235089356] [2022-03-15 15:33:56,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:56,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:56,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:56,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:56,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235089356] [2022-03-15 15:33:56,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235089356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:56,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:56,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:56,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228679816] [2022-03-15 15:33:56,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:56,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:56,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:56,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:56,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:56,454 INFO L87 Difference]: Start difference. First operand 5203 states and 24676 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:56,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:56,686 INFO L93 Difference]: Finished difference Result 11598 states and 51874 transitions. [2022-03-15 15:33:56,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:56,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:56,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:56,724 INFO L225 Difference]: With dead ends: 11598 [2022-03-15 15:33:56,724 INFO L226 Difference]: Without dead ends: 11073 [2022-03-15 15:33:56,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:56,733 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 177 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:56,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 214 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:56,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11073 states. [2022-03-15 15:33:56,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11073 to 5155. [2022-03-15 15:33:56,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.748932867675592) internal successors, (24476), 5154 states have internal predecessors, (24476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:56,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24476 transitions. [2022-03-15 15:33:56,889 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24476 transitions. Word has length 29 [2022-03-15 15:33:56,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:56,889 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24476 transitions. [2022-03-15 15:33:56,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:56,889 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24476 transitions. [2022-03-15 15:33:56,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:56,898 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:56,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:56,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable858 [2022-03-15 15:33:56,898 INFO L402 AbstractCegarLoop]: === Iteration 860 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:56,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:56,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1669980611, now seen corresponding path program 855 times [2022-03-15 15:33:56,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:56,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806269034] [2022-03-15 15:33:56,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:56,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:57,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:57,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:57,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806269034] [2022-03-15 15:33:57,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806269034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:57,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:57,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:57,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413173494] [2022-03-15 15:33:57,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:57,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:57,049 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:57,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:57,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:57,050 INFO L87 Difference]: Start difference. First operand 5155 states and 24476 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:57,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:57,252 INFO L93 Difference]: Finished difference Result 11534 states and 51624 transitions. [2022-03-15 15:33:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:57,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:57,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:57,286 INFO L225 Difference]: With dead ends: 11534 [2022-03-15 15:33:57,286 INFO L226 Difference]: Without dead ends: 11119 [2022-03-15 15:33:57,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:57,286 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 157 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:57,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 229 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:57,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11119 states. [2022-03-15 15:33:57,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11119 to 5203. [2022-03-15 15:33:57,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.738946559015763) internal successors, (24652), 5202 states have internal predecessors, (24652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:57,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24652 transitions. [2022-03-15 15:33:57,437 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24652 transitions. Word has length 29 [2022-03-15 15:33:57,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:57,438 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24652 transitions. [2022-03-15 15:33:57,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:57,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24652 transitions. [2022-03-15 15:33:57,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:57,449 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:57,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:57,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable859 [2022-03-15 15:33:57,449 INFO L402 AbstractCegarLoop]: === Iteration 861 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:57,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:57,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2082797245, now seen corresponding path program 856 times [2022-03-15 15:33:57,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:57,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579631034] [2022-03-15 15:33:57,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:57,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:57,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:57,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:57,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579631034] [2022-03-15 15:33:57,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579631034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:57,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:57,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:57,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036940399] [2022-03-15 15:33:57,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:57,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:57,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:57,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:57,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:57,602 INFO L87 Difference]: Start difference. First operand 5203 states and 24652 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:57,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:57,793 INFO L93 Difference]: Finished difference Result 11594 states and 51840 transitions. [2022-03-15 15:33:57,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:57,793 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:57,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:57,830 INFO L225 Difference]: With dead ends: 11594 [2022-03-15 15:33:57,830 INFO L226 Difference]: Without dead ends: 11071 [2022-03-15 15:33:57,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:57,830 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 170 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:57,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 198 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:57,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11071 states. [2022-03-15 15:33:57,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11071 to 5155. [2022-03-15 15:33:57,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.744276290259992) internal successors, (24452), 5154 states have internal predecessors, (24452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:57,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24452 transitions. [2022-03-15 15:33:57,997 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24452 transitions. Word has length 29 [2022-03-15 15:33:57,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:57,997 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24452 transitions. [2022-03-15 15:33:57,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:57,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24452 transitions. [2022-03-15 15:33:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:58,008 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:58,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:58,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable860 [2022-03-15 15:33:58,008 INFO L402 AbstractCegarLoop]: === Iteration 862 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:58,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:58,008 INFO L85 PathProgramCache]: Analyzing trace with hash -2125710043, now seen corresponding path program 857 times [2022-03-15 15:33:58,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:58,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86965965] [2022-03-15 15:33:58,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:58,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:58,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:58,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:58,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86965965] [2022-03-15 15:33:58,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86965965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:58,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:58,133 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:58,133 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113254856] [2022-03-15 15:33:58,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:58,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:58,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:58,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:58,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:58,134 INFO L87 Difference]: Start difference. First operand 5155 states and 24452 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:58,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:58,330 INFO L93 Difference]: Finished difference Result 11688 states and 52285 transitions. [2022-03-15 15:33:58,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:58,330 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:58,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:58,363 INFO L225 Difference]: With dead ends: 11688 [2022-03-15 15:33:58,363 INFO L226 Difference]: Without dead ends: 11211 [2022-03-15 15:33:58,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:58,363 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 165 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:58,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 208 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:58,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11211 states. [2022-03-15 15:33:58,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11211 to 5233. [2022-03-15 15:33:58,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.729548929663609) internal successors, (24745), 5232 states have internal predecessors, (24745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:58,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24745 transitions. [2022-03-15 15:33:58,517 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24745 transitions. Word has length 29 [2022-03-15 15:33:58,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:58,518 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24745 transitions. [2022-03-15 15:33:58,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:58,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24745 transitions. [2022-03-15 15:33:58,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:58,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:58,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:58,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable861 [2022-03-15 15:33:58,528 INFO L402 AbstractCegarLoop]: === Iteration 863 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:58,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:58,528 INFO L85 PathProgramCache]: Analyzing trace with hash 777112707, now seen corresponding path program 858 times [2022-03-15 15:33:58,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:58,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840620354] [2022-03-15 15:33:58,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:58,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:58,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:58,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:58,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840620354] [2022-03-15 15:33:58,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840620354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:58,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:58,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:58,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552457640] [2022-03-15 15:33:58,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:58,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:58,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:58,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:58,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:58,680 INFO L87 Difference]: Start difference. First operand 5233 states and 24745 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:58,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:58,859 INFO L93 Difference]: Finished difference Result 11686 states and 52202 transitions. [2022-03-15 15:33:58,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:58,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:58,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:58,892 INFO L225 Difference]: With dead ends: 11686 [2022-03-15 15:33:58,893 INFO L226 Difference]: Without dead ends: 11109 [2022-03-15 15:33:58,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:58,893 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 159 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:58,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 211 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:58,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11109 states. [2022-03-15 15:33:59,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11109 to 5131. [2022-03-15 15:33:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.749317738791423) internal successors, (24364), 5130 states have internal predecessors, (24364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:59,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24364 transitions. [2022-03-15 15:33:59,035 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24364 transitions. Word has length 29 [2022-03-15 15:33:59,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:59,035 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24364 transitions. [2022-03-15 15:33:59,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:59,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24364 transitions. [2022-03-15 15:33:59,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:59,045 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:59,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:59,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable862 [2022-03-15 15:33:59,045 INFO L402 AbstractCegarLoop]: === Iteration 864 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:59,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:59,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1570486553, now seen corresponding path program 859 times [2022-03-15 15:33:59,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:59,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887336597] [2022-03-15 15:33:59,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:59,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:59,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:59,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:59,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887336597] [2022-03-15 15:33:59,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887336597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:59,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:59,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:59,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374382270] [2022-03-15 15:33:59,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:59,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:59,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:59,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:59,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:59,158 INFO L87 Difference]: Start difference. First operand 5131 states and 24364 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:59,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:59,315 INFO L93 Difference]: Finished difference Result 12232 states and 54598 transitions. [2022-03-15 15:33:59,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:59,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:59,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:59,350 INFO L225 Difference]: With dead ends: 12232 [2022-03-15 15:33:59,351 INFO L226 Difference]: Without dead ends: 11690 [2022-03-15 15:33:59,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:59,351 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 207 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:59,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 186 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:59,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11690 states. [2022-03-15 15:33:59,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11690 to 5361. [2022-03-15 15:33:59,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 5360 states have (on average 4.7164179104477615) internal successors, (25280), 5360 states have internal predecessors, (25280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:59,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 25280 transitions. [2022-03-15 15:33:59,504 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 25280 transitions. Word has length 29 [2022-03-15 15:33:59,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:33:59,504 INFO L470 AbstractCegarLoop]: Abstraction has 5361 states and 25280 transitions. [2022-03-15 15:33:59,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:59,504 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 25280 transitions. [2022-03-15 15:33:59,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:33:59,514 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:33:59,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:33:59,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable863 [2022-03-15 15:33:59,514 INFO L402 AbstractCegarLoop]: === Iteration 865 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:33:59,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:33:59,514 INFO L85 PathProgramCache]: Analyzing trace with hash 681143749, now seen corresponding path program 860 times [2022-03-15 15:33:59,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:33:59,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226346256] [2022-03-15 15:33:59,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:33:59,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:33:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:33:59,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:33:59,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:33:59,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226346256] [2022-03-15 15:33:59,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226346256] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:33:59,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:33:59,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:33:59,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958675905] [2022-03-15 15:33:59,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:33:59,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:33:59,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:33:59,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:33:59,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:33:59,654 INFO L87 Difference]: Start difference. First operand 5361 states and 25280 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:33:59,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:33:59,859 INFO L93 Difference]: Finished difference Result 12167 states and 54229 transitions. [2022-03-15 15:33:59,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:33:59,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:33:59,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:33:59,892 INFO L225 Difference]: With dead ends: 12167 [2022-03-15 15:33:59,892 INFO L226 Difference]: Without dead ends: 11547 [2022-03-15 15:33:59,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:33:59,893 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 171 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:33:59,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 224 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:33:59,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11547 states. [2022-03-15 15:34:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11547 to 5218. [2022-03-15 15:34:00,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5218 states, 5217 states have (on average 4.732604945370903) internal successors, (24690), 5217 states have internal predecessors, (24690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:00,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 24690 transitions. [2022-03-15 15:34:00,035 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 24690 transitions. Word has length 29 [2022-03-15 15:34:00,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:00,035 INFO L470 AbstractCegarLoop]: Abstraction has 5218 states and 24690 transitions. [2022-03-15 15:34:00,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:00,036 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 24690 transitions. [2022-03-15 15:34:00,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:00,045 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:00,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:00,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable864 [2022-03-15 15:34:00,045 INFO L402 AbstractCegarLoop]: === Iteration 866 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:00,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:00,045 INFO L85 PathProgramCache]: Analyzing trace with hash 608401093, now seen corresponding path program 861 times [2022-03-15 15:34:00,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:00,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872547976] [2022-03-15 15:34:00,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:00,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:00,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:00,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872547976] [2022-03-15 15:34:00,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872547976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:00,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:00,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:00,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810373544] [2022-03-15 15:34:00,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:00,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:00,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:00,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:00,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:00,219 INFO L87 Difference]: Start difference. First operand 5218 states and 24690 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:00,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:00,426 INFO L93 Difference]: Finished difference Result 12197 states and 54407 transitions. [2022-03-15 15:34:00,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:00,426 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:00,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:00,460 INFO L225 Difference]: With dead ends: 12197 [2022-03-15 15:34:00,460 INFO L226 Difference]: Without dead ends: 11655 [2022-03-15 15:34:00,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:00,460 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 154 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:00,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 220 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:00,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11655 states. [2022-03-15 15:34:00,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11655 to 5328. [2022-03-15 15:34:00,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 4.710906701708279) internal successors, (25095), 5327 states have internal predecessors, (25095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:00,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 25095 transitions. [2022-03-15 15:34:00,620 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 25095 transitions. Word has length 29 [2022-03-15 15:34:00,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:00,621 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 25095 transitions. [2022-03-15 15:34:00,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:00,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 25095 transitions. [2022-03-15 15:34:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:00,631 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:00,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:00,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable865 [2022-03-15 15:34:00,631 INFO L402 AbstractCegarLoop]: === Iteration 867 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:00,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:00,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1164189381, now seen corresponding path program 862 times [2022-03-15 15:34:00,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:00,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175918882] [2022-03-15 15:34:00,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:00,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:00,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:00,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:00,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175918882] [2022-03-15 15:34:00,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175918882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:00,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:00,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:00,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565600401] [2022-03-15 15:34:00,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:00,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:00,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:00,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:00,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:00,797 INFO L87 Difference]: Start difference. First operand 5328 states and 25095 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:01,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:01,037 INFO L93 Difference]: Finished difference Result 12130 states and 54034 transitions. [2022-03-15 15:34:01,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:01,037 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:01,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:01,074 INFO L225 Difference]: With dead ends: 12130 [2022-03-15 15:34:01,074 INFO L226 Difference]: Without dead ends: 11545 [2022-03-15 15:34:01,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:01,075 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 159 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:01,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 222 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:01,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11545 states. [2022-03-15 15:34:01,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11545 to 5218. [2022-03-15 15:34:01,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5218 states, 5217 states have (on average 4.722062488019935) internal successors, (24635), 5217 states have internal predecessors, (24635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:01,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 24635 transitions. [2022-03-15 15:34:01,236 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 24635 transitions. Word has length 29 [2022-03-15 15:34:01,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:01,236 INFO L470 AbstractCegarLoop]: Abstraction has 5218 states and 24635 transitions. [2022-03-15 15:34:01,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:01,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 24635 transitions. [2022-03-15 15:34:01,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:01,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:01,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:01,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable866 [2022-03-15 15:34:01,246 INFO L402 AbstractCegarLoop]: === Iteration 868 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:01,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:01,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1590748707, now seen corresponding path program 863 times [2022-03-15 15:34:01,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:01,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954446197] [2022-03-15 15:34:01,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:01,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:01,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:01,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:01,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954446197] [2022-03-15 15:34:01,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954446197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:01,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:01,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:01,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624327733] [2022-03-15 15:34:01,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:01,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:01,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:01,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:01,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:01,404 INFO L87 Difference]: Start difference. First operand 5218 states and 24635 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:01,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:01,643 INFO L93 Difference]: Finished difference Result 12035 states and 53692 transitions. [2022-03-15 15:34:01,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:01,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:01,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:01,732 INFO L225 Difference]: With dead ends: 12035 [2022-03-15 15:34:01,732 INFO L226 Difference]: Without dead ends: 11558 [2022-03-15 15:34:01,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:01,733 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 153 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:01,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 231 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:01,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11558 states. [2022-03-15 15:34:01,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11558 to 5296. [2022-03-15 15:34:01,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5295 states have (on average 4.707837582625118) internal successors, (24928), 5295 states have internal predecessors, (24928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:01,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 24928 transitions. [2022-03-15 15:34:01,879 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 24928 transitions. Word has length 29 [2022-03-15 15:34:01,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:01,880 INFO L470 AbstractCegarLoop]: Abstraction has 5296 states and 24928 transitions. [2022-03-15 15:34:01,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:01,880 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 24928 transitions. [2022-03-15 15:34:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:01,890 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:01,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:01,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable867 [2022-03-15 15:34:01,890 INFO L402 AbstractCegarLoop]: === Iteration 869 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:01,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:01,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1383940741, now seen corresponding path program 864 times [2022-03-15 15:34:01,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:01,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509963966] [2022-03-15 15:34:01,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:01,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:02,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:02,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:02,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509963966] [2022-03-15 15:34:02,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509963966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:02,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:02,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:02,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965592679] [2022-03-15 15:34:02,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:02,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:02,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:02,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:02,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:02,009 INFO L87 Difference]: Start difference. First operand 5296 states and 24928 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:02,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:02,189 INFO L93 Difference]: Finished difference Result 12033 states and 53609 transitions. [2022-03-15 15:34:02,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:02,189 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:02,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:02,225 INFO L225 Difference]: With dead ends: 12033 [2022-03-15 15:34:02,225 INFO L226 Difference]: Without dead ends: 11357 [2022-03-15 15:34:02,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:02,225 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 158 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:02,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 197 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:02,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11357 states. [2022-03-15 15:34:02,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11357 to 5095. [2022-03-15 15:34:02,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.756576364350216) internal successors, (24230), 5094 states have internal predecessors, (24230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:02,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24230 transitions. [2022-03-15 15:34:02,369 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24230 transitions. Word has length 29 [2022-03-15 15:34:02,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:02,369 INFO L470 AbstractCegarLoop]: Abstraction has 5095 states and 24230 transitions. [2022-03-15 15:34:02,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:02,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24230 transitions. [2022-03-15 15:34:02,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:02,378 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:02,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:02,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable868 [2022-03-15 15:34:02,378 INFO L402 AbstractCegarLoop]: === Iteration 870 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:02,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:02,378 INFO L85 PathProgramCache]: Analyzing trace with hash -619060063, now seen corresponding path program 865 times [2022-03-15 15:34:02,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:02,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602690417] [2022-03-15 15:34:02,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:02,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:02,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:02,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602690417] [2022-03-15 15:34:02,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602690417] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:02,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:02,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:02,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630064181] [2022-03-15 15:34:02,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:02,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:02,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:02,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:02,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:02,529 INFO L87 Difference]: Start difference. First operand 5095 states and 24230 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:02,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:02,697 INFO L93 Difference]: Finished difference Result 11722 states and 52452 transitions. [2022-03-15 15:34:02,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:02,697 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:02,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:02,729 INFO L225 Difference]: With dead ends: 11722 [2022-03-15 15:34:02,729 INFO L226 Difference]: Without dead ends: 11307 [2022-03-15 15:34:02,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:02,730 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 168 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:02,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 219 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:02,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2022-03-15 15:34:02,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 5259. [2022-03-15 15:34:02,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7481932293647775) internal successors, (24966), 5258 states have internal predecessors, (24966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:02,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24966 transitions. [2022-03-15 15:34:02,869 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24966 transitions. Word has length 29 [2022-03-15 15:34:02,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:02,869 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 24966 transitions. [2022-03-15 15:34:02,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:02,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24966 transitions. [2022-03-15 15:34:02,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:02,879 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:02,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:02,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable869 [2022-03-15 15:34:02,879 INFO L402 AbstractCegarLoop]: === Iteration 871 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:02,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:02,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1604264093, now seen corresponding path program 866 times [2022-03-15 15:34:02,879 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:02,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105083319] [2022-03-15 15:34:02,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:02,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:02,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:02,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105083319] [2022-03-15 15:34:02,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105083319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:02,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:02,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:02,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017248030] [2022-03-15 15:34:02,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:02,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:02,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:02,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:02,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:02,989 INFO L87 Difference]: Start difference. First operand 5259 states and 24966 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:03,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:03,146 INFO L93 Difference]: Finished difference Result 11849 states and 52931 transitions. [2022-03-15 15:34:03,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:03,147 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:03,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:03,179 INFO L225 Difference]: With dead ends: 11849 [2022-03-15 15:34:03,179 INFO L226 Difference]: Without dead ends: 11227 [2022-03-15 15:34:03,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:03,180 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 170 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:03,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 216 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:03,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11227 states. [2022-03-15 15:34:03,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11227 to 5179. [2022-03-15 15:34:03,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.752027809965237) internal successors, (24606), 5178 states have internal predecessors, (24606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:03,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24606 transitions. [2022-03-15 15:34:03,319 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24606 transitions. Word has length 29 [2022-03-15 15:34:03,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:03,319 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24606 transitions. [2022-03-15 15:34:03,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:03,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24606 transitions. [2022-03-15 15:34:03,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:03,329 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:03,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:03,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable870 [2022-03-15 15:34:03,330 INFO L402 AbstractCegarLoop]: === Iteration 872 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:03,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:03,330 INFO L85 PathProgramCache]: Analyzing trace with hash -838861919, now seen corresponding path program 867 times [2022-03-15 15:34:03,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:03,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814962067] [2022-03-15 15:34:03,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:03,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:03,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:03,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814962067] [2022-03-15 15:34:03,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814962067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:03,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:03,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:03,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921189469] [2022-03-15 15:34:03,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:03,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:03,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:03,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:03,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:03,438 INFO L87 Difference]: Start difference. First operand 5179 states and 24606 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:03,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:03,610 INFO L93 Difference]: Finished difference Result 11625 states and 52010 transitions. [2022-03-15 15:34:03,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:03,610 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:03,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:03,644 INFO L225 Difference]: With dead ends: 11625 [2022-03-15 15:34:03,644 INFO L226 Difference]: Without dead ends: 11210 [2022-03-15 15:34:03,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:03,644 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 157 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:03,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 234 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:03,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11210 states. [2022-03-15 15:34:03,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11210 to 5227. [2022-03-15 15:34:03,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 4.742058936088787) internal successors, (24782), 5226 states have internal predecessors, (24782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:03,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 24782 transitions. [2022-03-15 15:34:03,794 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 24782 transitions. Word has length 29 [2022-03-15 15:34:03,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:03,794 INFO L470 AbstractCegarLoop]: Abstraction has 5227 states and 24782 transitions. [2022-03-15 15:34:03,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:03,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 24782 transitions. [2022-03-15 15:34:03,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:03,804 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:03,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:03,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable871 [2022-03-15 15:34:03,804 INFO L402 AbstractCegarLoop]: === Iteration 873 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:03,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:03,805 INFO L85 PathProgramCache]: Analyzing trace with hash -609574909, now seen corresponding path program 868 times [2022-03-15 15:34:03,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:03,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547385845] [2022-03-15 15:34:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:03,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:03,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:03,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:03,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547385845] [2022-03-15 15:34:03,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547385845] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:03,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:03,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:03,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115818465] [2022-03-15 15:34:03,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:03,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:03,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:03,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:03,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:03,928 INFO L87 Difference]: Start difference. First operand 5227 states and 24782 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:04,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:04,108 INFO L93 Difference]: Finished difference Result 11687 states and 52231 transitions. [2022-03-15 15:34:04,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:04,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:04,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:04,145 INFO L225 Difference]: With dead ends: 11687 [2022-03-15 15:34:04,145 INFO L226 Difference]: Without dead ends: 11162 [2022-03-15 15:34:04,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:04,145 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 156 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:04,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 223 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:04,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-03-15 15:34:04,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 5179. [2022-03-15 15:34:04,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.74739281575898) internal successors, (24582), 5178 states have internal predecessors, (24582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:04,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24582 transitions. [2022-03-15 15:34:04,312 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24582 transitions. Word has length 29 [2022-03-15 15:34:04,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:04,312 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24582 transitions. [2022-03-15 15:34:04,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:04,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24582 transitions. [2022-03-15 15:34:04,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:04,323 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:04,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:04,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable872 [2022-03-15 15:34:04,323 INFO L402 AbstractCegarLoop]: === Iteration 874 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:04,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:04,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1124926021, now seen corresponding path program 869 times [2022-03-15 15:34:04,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:04,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128419843] [2022-03-15 15:34:04,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:04,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:04,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:04,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:04,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128419843] [2022-03-15 15:34:04,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128419843] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:04,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:04,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:04,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265667141] [2022-03-15 15:34:04,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:04,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:04,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:04,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:04,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:04,437 INFO L87 Difference]: Start difference. First operand 5179 states and 24582 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:04,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:04,604 INFO L93 Difference]: Finished difference Result 11974 states and 53446 transitions. [2022-03-15 15:34:04,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:04,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:04,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:04,644 INFO L225 Difference]: With dead ends: 11974 [2022-03-15 15:34:04,645 INFO L226 Difference]: Without dead ends: 11432 [2022-03-15 15:34:04,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:04,645 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 186 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:04,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 204 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:04,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11432 states. [2022-03-15 15:34:04,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11432 to 5322. [2022-03-15 15:34:04,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5321 states have (on average 4.717346363465514) internal successors, (25101), 5321 states have internal predecessors, (25101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:04,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 25101 transitions. [2022-03-15 15:34:04,826 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 25101 transitions. Word has length 29 [2022-03-15 15:34:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:04,826 INFO L470 AbstractCegarLoop]: Abstraction has 5322 states and 25101 transitions. [2022-03-15 15:34:04,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 25101 transitions. [2022-03-15 15:34:04,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:04,837 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:04,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:04,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable873 [2022-03-15 15:34:04,837 INFO L402 AbstractCegarLoop]: === Iteration 875 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:04,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:04,837 INFO L85 PathProgramCache]: Analyzing trace with hash -918410973, now seen corresponding path program 870 times [2022-03-15 15:34:04,837 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:04,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589987543] [2022-03-15 15:34:04,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:04,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:04,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:04,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:04,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589987543] [2022-03-15 15:34:04,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589987543] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:04,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:04,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:04,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792223879] [2022-03-15 15:34:04,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:04,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:04,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:04,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:04,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:04,956 INFO L87 Difference]: Start difference. First operand 5322 states and 25101 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:05,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:05,162 INFO L93 Difference]: Finished difference Result 11909 states and 53077 transitions. [2022-03-15 15:34:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:05,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:05,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:05,211 INFO L225 Difference]: With dead ends: 11909 [2022-03-15 15:34:05,211 INFO L226 Difference]: Without dead ends: 11233 [2022-03-15 15:34:05,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:05,212 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:05,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 234 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:05,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11233 states. [2022-03-15 15:34:05,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11233 to 5123. [2022-03-15 15:34:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.754002342834831) internal successors, (24350), 5122 states have internal predecessors, (24350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:05,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24350 transitions. [2022-03-15 15:34:05,400 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24350 transitions. Word has length 29 [2022-03-15 15:34:05,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:05,400 INFO L470 AbstractCegarLoop]: Abstraction has 5123 states and 24350 transitions. [2022-03-15 15:34:05,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:05,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24350 transitions. [2022-03-15 15:34:05,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:05,411 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:05,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:05,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable874 [2022-03-15 15:34:05,411 INFO L402 AbstractCegarLoop]: === Iteration 876 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:05,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:05,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1662145761, now seen corresponding path program 871 times [2022-03-15 15:34:05,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:05,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546938164] [2022-03-15 15:34:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:05,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:05,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:05,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:05,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546938164] [2022-03-15 15:34:05,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546938164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:05,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:05,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:05,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633194456] [2022-03-15 15:34:05,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:05,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:05,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:05,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:05,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:05,527 INFO L87 Difference]: Start difference. First operand 5123 states and 24350 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:05,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:05,700 INFO L93 Difference]: Finished difference Result 11573 states and 51809 transitions. [2022-03-15 15:34:05,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:05,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:05,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:05,737 INFO L225 Difference]: With dead ends: 11573 [2022-03-15 15:34:05,737 INFO L226 Difference]: Without dead ends: 11158 [2022-03-15 15:34:05,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:05,737 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 192 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:05,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 191 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:05,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11158 states. [2022-03-15 15:34:05,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11158 to 5243. [2022-03-15 15:34:05,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.745135444486837) internal successors, (24874), 5242 states have internal predecessors, (24874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:05,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24874 transitions. [2022-03-15 15:34:05,892 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24874 transitions. Word has length 29 [2022-03-15 15:34:05,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:05,892 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 24874 transitions. [2022-03-15 15:34:05,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:05,892 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24874 transitions. [2022-03-15 15:34:05,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:05,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:05,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:05,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable875 [2022-03-15 15:34:05,902 INFO L402 AbstractCegarLoop]: === Iteration 877 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:05,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:05,902 INFO L85 PathProgramCache]: Analyzing trace with hash 676941731, now seen corresponding path program 872 times [2022-03-15 15:34:05,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:05,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71217616] [2022-03-15 15:34:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:05,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:06,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:06,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:06,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71217616] [2022-03-15 15:34:06,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71217616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:06,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:06,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:06,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675652540] [2022-03-15 15:34:06,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:06,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:06,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:06,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:06,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:06,103 INFO L87 Difference]: Start difference. First operand 5243 states and 24874 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:06,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:06,293 INFO L93 Difference]: Finished difference Result 11700 states and 52288 transitions. [2022-03-15 15:34:06,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:06,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:06,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:06,328 INFO L225 Difference]: With dead ends: 11700 [2022-03-15 15:34:06,328 INFO L226 Difference]: Without dead ends: 11078 [2022-03-15 15:34:06,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:06,328 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 190 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:06,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 199 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:06,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11078 states. [2022-03-15 15:34:06,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11078 to 5163. [2022-03-15 15:34:06,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.748934521503293) internal successors, (24514), 5162 states have internal predecessors, (24514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:06,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24514 transitions. [2022-03-15 15:34:06,474 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24514 transitions. Word has length 29 [2022-03-15 15:34:06,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:06,475 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 24514 transitions. [2022-03-15 15:34:06,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:06,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24514 transitions. [2022-03-15 15:34:06,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:06,485 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:06,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:06,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable876 [2022-03-15 15:34:06,485 INFO L402 AbstractCegarLoop]: === Iteration 878 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:06,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:06,485 INFO L85 PathProgramCache]: Analyzing trace with hash 125026687, now seen corresponding path program 873 times [2022-03-15 15:34:06,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:06,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362285694] [2022-03-15 15:34:06,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:06,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:06,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:06,637 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:06,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362285694] [2022-03-15 15:34:06,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362285694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:06,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:06,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:06,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89973751] [2022-03-15 15:34:06,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:06,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:06,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:06,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:06,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:06,638 INFO L87 Difference]: Start difference. First operand 5163 states and 24514 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:06,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:06,852 INFO L93 Difference]: Finished difference Result 11366 states and 50922 transitions. [2022-03-15 15:34:06,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:06,852 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:06,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:06,886 INFO L225 Difference]: With dead ends: 11366 [2022-03-15 15:34:06,886 INFO L226 Difference]: Without dead ends: 10951 [2022-03-15 15:34:06,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:06,886 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 174 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:06,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 201 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:06,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10951 states. [2022-03-15 15:34:07,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10951 to 5211. [2022-03-15 15:34:07,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.7389635316698655) internal successors, (24690), 5210 states have internal predecessors, (24690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:07,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24690 transitions. [2022-03-15 15:34:07,040 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24690 transitions. Word has length 29 [2022-03-15 15:34:07,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:07,040 INFO L470 AbstractCegarLoop]: Abstraction has 5211 states and 24690 transitions. [2022-03-15 15:34:07,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:07,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24690 transitions. [2022-03-15 15:34:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:07,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:07,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:07,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable877 [2022-03-15 15:34:07,051 INFO L402 AbstractCegarLoop]: === Iteration 879 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:07,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:07,051 INFO L85 PathProgramCache]: Analyzing trace with hash -2108374047, now seen corresponding path program 874 times [2022-03-15 15:34:07,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:07,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641275014] [2022-03-15 15:34:07,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:07,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:07,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:07,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:07,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641275014] [2022-03-15 15:34:07,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641275014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:07,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:07,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:07,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397701287] [2022-03-15 15:34:07,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:07,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:07,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:07,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:07,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:07,209 INFO L87 Difference]: Start difference. First operand 5211 states and 24690 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:07,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:07,446 INFO L93 Difference]: Finished difference Result 11094 states and 49913 transitions. [2022-03-15 15:34:07,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:07,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:07,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:07,480 INFO L225 Difference]: With dead ends: 11094 [2022-03-15 15:34:07,480 INFO L226 Difference]: Without dead ends: 10583 [2022-03-15 15:34:07,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:07,480 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 136 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:07,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 244 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:07,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10583 states. [2022-03-15 15:34:07,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10583 to 5163. [2022-03-15 15:34:07,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.744285160790391) internal successors, (24490), 5162 states have internal predecessors, (24490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:07,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24490 transitions. [2022-03-15 15:34:07,633 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24490 transitions. Word has length 29 [2022-03-15 15:34:07,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:07,633 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 24490 transitions. [2022-03-15 15:34:07,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24490 transitions. [2022-03-15 15:34:07,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:07,643 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:07,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:07,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable878 [2022-03-15 15:34:07,644 INFO L402 AbstractCegarLoop]: === Iteration 880 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:07,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:07,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1232299555, now seen corresponding path program 875 times [2022-03-15 15:34:07,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:07,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612845002] [2022-03-15 15:34:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:07,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:07,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:07,830 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:07,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612845002] [2022-03-15 15:34:07,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612845002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:07,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:07,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:07,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974269669] [2022-03-15 15:34:07,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:07,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:07,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:07,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:07,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:07,831 INFO L87 Difference]: Start difference. First operand 5163 states and 24490 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:08,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:08,082 INFO L93 Difference]: Finished difference Result 11549 states and 51693 transitions. [2022-03-15 15:34:08,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:08,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:08,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:08,118 INFO L225 Difference]: With dead ends: 11549 [2022-03-15 15:34:08,118 INFO L226 Difference]: Without dead ends: 11007 [2022-03-15 15:34:08,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:08,118 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 148 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:08,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 255 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:34:08,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11007 states. [2022-03-15 15:34:08,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11007 to 5267. [2022-03-15 15:34:08,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 4.7242688947968094) internal successors, (24878), 5266 states have internal predecessors, (24878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:08,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 24878 transitions. [2022-03-15 15:34:08,317 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 24878 transitions. Word has length 29 [2022-03-15 15:34:08,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:08,317 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 24878 transitions. [2022-03-15 15:34:08,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:08,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 24878 transitions. [2022-03-15 15:34:08,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:08,327 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:08,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:08,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable879 [2022-03-15 15:34:08,328 INFO L402 AbstractCegarLoop]: === Iteration 881 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:08,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:08,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1793732353, now seen corresponding path program 876 times [2022-03-15 15:34:08,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:08,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609032475] [2022-03-15 15:34:08,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:08,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:08,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:08,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:08,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609032475] [2022-03-15 15:34:08,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609032475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:08,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:08,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:08,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525720223] [2022-03-15 15:34:08,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:08,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:08,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:08,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:08,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:08,491 INFO L87 Difference]: Start difference. First operand 5267 states and 24878 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:08,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:08,759 INFO L93 Difference]: Finished difference Result 11150 states and 50101 transitions. [2022-03-15 15:34:08,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:08,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:08,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:08,801 INFO L225 Difference]: With dead ends: 11150 [2022-03-15 15:34:08,801 INFO L226 Difference]: Without dead ends: 10543 [2022-03-15 15:34:08,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:08,801 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 171 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:08,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 202 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:08,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10543 states. [2022-03-15 15:34:08,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10543 to 5123. [2022-03-15 15:34:08,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.750097618117922) internal successors, (24330), 5122 states have internal predecessors, (24330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:08,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24330 transitions. [2022-03-15 15:34:08,986 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24330 transitions. Word has length 29 [2022-03-15 15:34:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:08,986 INFO L470 AbstractCegarLoop]: Abstraction has 5123 states and 24330 transitions. [2022-03-15 15:34:08,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:08,986 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24330 transitions. [2022-03-15 15:34:08,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:08,998 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:08,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:08,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable880 [2022-03-15 15:34:08,998 INFO L402 AbstractCegarLoop]: === Iteration 882 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:08,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:08,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1391732609, now seen corresponding path program 877 times [2022-03-15 15:34:08,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:08,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699152485] [2022-03-15 15:34:08,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:08,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:09,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:09,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:09,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699152485] [2022-03-15 15:34:09,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699152485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:09,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:09,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:09,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380819001] [2022-03-15 15:34:09,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:09,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:09,192 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:09,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:09,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:09,192 INFO L87 Difference]: Start difference. First operand 5123 states and 24330 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:09,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:09,449 INFO L93 Difference]: Finished difference Result 11363 states and 50905 transitions. [2022-03-15 15:34:09,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:09,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:09,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:09,481 INFO L225 Difference]: With dead ends: 11363 [2022-03-15 15:34:09,481 INFO L226 Difference]: Without dead ends: 10948 [2022-03-15 15:34:09,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:09,482 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 159 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:09,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 223 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:34:09,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10948 states. [2022-03-15 15:34:09,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10948 to 5195. [2022-03-15 15:34:09,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.74201001155179) internal successors, (24630), 5194 states have internal predecessors, (24630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:09,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24630 transitions. [2022-03-15 15:34:09,618 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24630 transitions. Word has length 29 [2022-03-15 15:34:09,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:09,618 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24630 transitions. [2022-03-15 15:34:09,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:09,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24630 transitions. [2022-03-15 15:34:09,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:09,628 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:09,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:09,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable881 [2022-03-15 15:34:09,628 INFO L402 AbstractCegarLoop]: === Iteration 883 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:09,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:09,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1162445599, now seen corresponding path program 878 times [2022-03-15 15:34:09,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:09,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250592028] [2022-03-15 15:34:09,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:09,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:09,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:09,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250592028] [2022-03-15 15:34:09,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250592028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:09,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:09,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:09,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009693160] [2022-03-15 15:34:09,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:09,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:09,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:09,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:09,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:09,841 INFO L87 Difference]: Start difference. First operand 5195 states and 24630 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:10,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:10,070 INFO L93 Difference]: Finished difference Result 11425 states and 51126 transitions. [2022-03-15 15:34:10,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:10,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:10,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:10,108 INFO L225 Difference]: With dead ends: 11425 [2022-03-15 15:34:10,108 INFO L226 Difference]: Without dead ends: 10900 [2022-03-15 15:34:10,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:10,108 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 188 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:10,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 189 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:10,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10900 states. [2022-03-15 15:34:10,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10900 to 5147. [2022-03-15 15:34:10,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.747376603186941) internal successors, (24430), 5146 states have internal predecessors, (24430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24430 transitions. [2022-03-15 15:34:10,270 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24430 transitions. Word has length 29 [2022-03-15 15:34:10,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:10,270 INFO L470 AbstractCegarLoop]: Abstraction has 5147 states and 24430 transitions. [2022-03-15 15:34:10,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:10,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24430 transitions. [2022-03-15 15:34:10,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:10,281 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:10,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:10,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable882 [2022-03-15 15:34:10,281 INFO L402 AbstractCegarLoop]: === Iteration 884 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:10,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:10,282 INFO L85 PathProgramCache]: Analyzing trace with hash 343159649, now seen corresponding path program 879 times [2022-03-15 15:34:10,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:10,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806315452] [2022-03-15 15:34:10,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:10,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:10,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:10,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:10,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806315452] [2022-03-15 15:34:10,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806315452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:10,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:10,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:10,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100889141] [2022-03-15 15:34:10,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:10,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:10,426 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:10,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:10,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:10,426 INFO L87 Difference]: Start difference. First operand 5147 states and 24430 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:10,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:10,628 INFO L93 Difference]: Finished difference Result 11253 states and 50436 transitions. [2022-03-15 15:34:10,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:10,628 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:10,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:10,665 INFO L225 Difference]: With dead ends: 11253 [2022-03-15 15:34:10,665 INFO L226 Difference]: Without dead ends: 10838 [2022-03-15 15:34:10,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:10,665 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 181 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:10,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 206 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:10,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10838 states. [2022-03-15 15:34:10,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10838 to 5195. [2022-03-15 15:34:10,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.737389295340778) internal successors, (24606), 5194 states have internal predecessors, (24606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:10,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24606 transitions. [2022-03-15 15:34:10,828 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24606 transitions. Word has length 29 [2022-03-15 15:34:10,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:10,828 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24606 transitions. [2022-03-15 15:34:10,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:10,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24606 transitions. [2022-03-15 15:34:10,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:10,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:10,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:10,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable883 [2022-03-15 15:34:10,838 INFO L402 AbstractCegarLoop]: === Iteration 885 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:10,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:10,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1410407137, now seen corresponding path program 880 times [2022-03-15 15:34:10,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:10,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735023888] [2022-03-15 15:34:10,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:10,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:10,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:10,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735023888] [2022-03-15 15:34:10,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735023888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:10,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:10,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:10,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094210932] [2022-03-15 15:34:10,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:10,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:10,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:10,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:10,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:10,985 INFO L87 Difference]: Start difference. First operand 5195 states and 24606 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:11,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:11,217 INFO L93 Difference]: Finished difference Result 10981 states and 49427 transitions. [2022-03-15 15:34:11,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:11,218 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:11,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:11,252 INFO L225 Difference]: With dead ends: 10981 [2022-03-15 15:34:11,252 INFO L226 Difference]: Without dead ends: 10470 [2022-03-15 15:34:11,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:11,253 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:11,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 231 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:11,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2022-03-15 15:34:11,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 5147. [2022-03-15 15:34:11,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.742712786630393) internal successors, (24406), 5146 states have internal predecessors, (24406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24406 transitions. [2022-03-15 15:34:11,406 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24406 transitions. Word has length 29 [2022-03-15 15:34:11,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:11,406 INFO L470 AbstractCegarLoop]: Abstraction has 5147 states and 24406 transitions. [2022-03-15 15:34:11,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:11,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24406 transitions. [2022-03-15 15:34:11,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:11,416 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:11,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:11,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable884 [2022-03-15 15:34:11,416 INFO L402 AbstractCegarLoop]: === Iteration 886 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:11,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:11,417 INFO L85 PathProgramCache]: Analyzing trace with hash 23097027, now seen corresponding path program 881 times [2022-03-15 15:34:11,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:11,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899673877] [2022-03-15 15:34:11,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:11,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:11,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:11,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:11,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899673877] [2022-03-15 15:34:11,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899673877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:11,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:11,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:11,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591460447] [2022-03-15 15:34:11,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:11,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:11,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:11,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:11,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:11,588 INFO L87 Difference]: Start difference. First operand 5147 states and 24406 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:11,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:11,809 INFO L93 Difference]: Finished difference Result 11339 states and 50805 transitions. [2022-03-15 15:34:11,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:11,809 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:11,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:11,846 INFO L225 Difference]: With dead ends: 11339 [2022-03-15 15:34:11,846 INFO L226 Difference]: Without dead ends: 10862 [2022-03-15 15:34:11,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:11,846 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 163 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:11,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 216 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:11,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10862 states. [2022-03-15 15:34:11,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10862 to 5219. [2022-03-15 15:34:11,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.730164814105021) internal successors, (24682), 5218 states have internal predecessors, (24682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:12,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24682 transitions. [2022-03-15 15:34:12,016 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24682 transitions. Word has length 29 [2022-03-15 15:34:12,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:12,016 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24682 transitions. [2022-03-15 15:34:12,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:12,016 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24682 transitions. [2022-03-15 15:34:12,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:12,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:12,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:12,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable885 [2022-03-15 15:34:12,027 INFO L402 AbstractCegarLoop]: === Iteration 887 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:12,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:12,027 INFO L85 PathProgramCache]: Analyzing trace with hash -66662623, now seen corresponding path program 882 times [2022-03-15 15:34:12,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:12,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047635937] [2022-03-15 15:34:12,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:12,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:12,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:12,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047635937] [2022-03-15 15:34:12,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047635937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:12,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:12,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:12,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447395134] [2022-03-15 15:34:12,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:12,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:12,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:12,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:12,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:12,218 INFO L87 Difference]: Start difference. First operand 5219 states and 24682 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:12,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:12,395 INFO L93 Difference]: Finished difference Result 11005 states and 49503 transitions. [2022-03-15 15:34:12,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:12,396 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:12,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:12,431 INFO L225 Difference]: With dead ends: 11005 [2022-03-15 15:34:12,431 INFO L226 Difference]: Without dead ends: 10446 [2022-03-15 15:34:12,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:12,431 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 145 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:12,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 205 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:12,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10446 states. [2022-03-15 15:34:12,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10446 to 5123. [2022-03-15 15:34:12,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.747754783287778) internal successors, (24318), 5122 states have internal predecessors, (24318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:12,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24318 transitions. [2022-03-15 15:34:12,598 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24318 transitions. Word has length 29 [2022-03-15 15:34:12,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:12,598 INFO L470 AbstractCegarLoop]: Abstraction has 5123 states and 24318 transitions. [2022-03-15 15:34:12,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:12,598 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24318 transitions. [2022-03-15 15:34:12,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:12,609 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:12,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:12,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable886 [2022-03-15 15:34:12,609 INFO L402 AbstractCegarLoop]: === Iteration 888 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:12,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:12,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1397659781, now seen corresponding path program 883 times [2022-03-15 15:34:12,609 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:12,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775380730] [2022-03-15 15:34:12,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:12,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:12,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:12,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775380730] [2022-03-15 15:34:12,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775380730] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:12,768 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:12,768 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:12,768 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366454748] [2022-03-15 15:34:12,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:12,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:12,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:12,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:12,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:12,769 INFO L87 Difference]: Start difference. First operand 5123 states and 24318 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:12,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:12,992 INFO L93 Difference]: Finished difference Result 11939 states and 53360 transitions. [2022-03-15 15:34:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:12,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:12,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:13,030 INFO L225 Difference]: With dead ends: 11939 [2022-03-15 15:34:13,030 INFO L226 Difference]: Without dead ends: 11397 [2022-03-15 15:34:13,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:13,030 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 173 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:13,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 230 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:13,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11397 states. [2022-03-15 15:34:13,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11397 to 5334. [2022-03-15 15:34:13,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5333 states have (on average 4.720232514532158) internal successors, (25173), 5333 states have internal predecessors, (25173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:13,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 25173 transitions. [2022-03-15 15:34:13,181 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 25173 transitions. Word has length 29 [2022-03-15 15:34:13,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:13,181 INFO L470 AbstractCegarLoop]: Abstraction has 5334 states and 25173 transitions. [2022-03-15 15:34:13,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:13,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 25173 transitions. [2022-03-15 15:34:13,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:13,192 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:13,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:13,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable887 [2022-03-15 15:34:13,192 INFO L402 AbstractCegarLoop]: === Iteration 889 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:13,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:13,192 INFO L85 PathProgramCache]: Analyzing trace with hash -645677213, now seen corresponding path program 884 times [2022-03-15 15:34:13,192 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:13,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244179803] [2022-03-15 15:34:13,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:13,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:13,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:13,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244179803] [2022-03-15 15:34:13,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244179803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:13,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:13,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:13,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588503456] [2022-03-15 15:34:13,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:13,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:13,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:13,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:13,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:13,341 INFO L87 Difference]: Start difference. First operand 5334 states and 25173 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:13,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:13,534 INFO L93 Difference]: Finished difference Result 11874 states and 52991 transitions. [2022-03-15 15:34:13,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:13,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:13,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:13,568 INFO L225 Difference]: With dead ends: 11874 [2022-03-15 15:34:13,568 INFO L226 Difference]: Without dead ends: 11254 [2022-03-15 15:34:13,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:13,569 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 167 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:13,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 242 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:13,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11254 states. [2022-03-15 15:34:13,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11254 to 5191. [2022-03-15 15:34:13,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.737186897880539) internal successors, (24586), 5190 states have internal predecessors, (24586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24586 transitions. [2022-03-15 15:34:13,709 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24586 transitions. Word has length 29 [2022-03-15 15:34:13,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:13,709 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24586 transitions. [2022-03-15 15:34:13,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:13,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24586 transitions. [2022-03-15 15:34:13,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:13,719 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:13,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:13,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable888 [2022-03-15 15:34:13,719 INFO L402 AbstractCegarLoop]: === Iteration 890 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:13,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:13,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1037982051, now seen corresponding path program 885 times [2022-03-15 15:34:13,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:13,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966109457] [2022-03-15 15:34:13,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:13,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:13,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:13,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966109457] [2022-03-15 15:34:13,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966109457] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:13,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:13,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:13,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152483368] [2022-03-15 15:34:13,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:13,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:13,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:13,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:13,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:13,890 INFO L87 Difference]: Start difference. First operand 5191 states and 24586 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:14,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:14,109 INFO L93 Difference]: Finished difference Result 11663 states and 52182 transitions. [2022-03-15 15:34:14,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:14,109 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:14,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:14,147 INFO L225 Difference]: With dead ends: 11663 [2022-03-15 15:34:14,148 INFO L226 Difference]: Without dead ends: 11121 [2022-03-15 15:34:14,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:14,148 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 170 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:14,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 197 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:14,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2022-03-15 15:34:14,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 5295. [2022-03-15 15:34:14,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 4.717415942576502) internal successors, (24974), 5294 states have internal predecessors, (24974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:14,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 24974 transitions. [2022-03-15 15:34:14,310 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 24974 transitions. Word has length 29 [2022-03-15 15:34:14,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:14,310 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 24974 transitions. [2022-03-15 15:34:14,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:14,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 24974 transitions. [2022-03-15 15:34:14,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:14,321 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:14,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:14,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable889 [2022-03-15 15:34:14,321 INFO L402 AbstractCegarLoop]: === Iteration 891 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:14,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:14,321 INFO L85 PathProgramCache]: Analyzing trace with hash 320414051, now seen corresponding path program 886 times [2022-03-15 15:34:14,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:14,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307923000] [2022-03-15 15:34:14,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:14,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:14,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:14,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:14,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307923000] [2022-03-15 15:34:14,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307923000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:14,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:14,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:14,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617594644] [2022-03-15 15:34:14,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:14,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:14,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:14,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:14,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:14,482 INFO L87 Difference]: Start difference. First operand 5295 states and 24974 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:14,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:14,700 INFO L93 Difference]: Finished difference Result 11264 states and 50590 transitions. [2022-03-15 15:34:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:14,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:14,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:14,736 INFO L225 Difference]: With dead ends: 11264 [2022-03-15 15:34:14,736 INFO L226 Difference]: Without dead ends: 10697 [2022-03-15 15:34:14,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:14,737 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 161 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:14,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 203 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:14,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10697 states. [2022-03-15 15:34:14,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10697 to 5191. [2022-03-15 15:34:14,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.727167630057804) internal successors, (24534), 5190 states have internal predecessors, (24534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:14,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24534 transitions. [2022-03-15 15:34:14,897 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24534 transitions. Word has length 29 [2022-03-15 15:34:14,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:14,897 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24534 transitions. [2022-03-15 15:34:14,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:14,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24534 transitions. [2022-03-15 15:34:14,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:14,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:14,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:14,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable890 [2022-03-15 15:34:14,908 INFO L402 AbstractCegarLoop]: === Iteration 892 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:14,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:14,908 INFO L85 PathProgramCache]: Analyzing trace with hash 2020329665, now seen corresponding path program 887 times [2022-03-15 15:34:14,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:14,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470703195] [2022-03-15 15:34:14,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:14,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:15,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:15,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470703195] [2022-03-15 15:34:15,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470703195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:15,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:15,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:15,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008115554] [2022-03-15 15:34:15,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:15,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:15,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:15,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:15,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:15,069 INFO L87 Difference]: Start difference. First operand 5191 states and 24534 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:15,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:15,295 INFO L93 Difference]: Finished difference Result 11566 states and 51728 transitions. [2022-03-15 15:34:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:15,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:15,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:15,331 INFO L225 Difference]: With dead ends: 11566 [2022-03-15 15:34:15,331 INFO L226 Difference]: Without dead ends: 11089 [2022-03-15 15:34:15,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:15,332 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 159 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:15,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 223 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:15,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11089 states. [2022-03-15 15:34:15,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11089 to 5263. [2022-03-15 15:34:15,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.714937286202964) internal successors, (24810), 5262 states have internal predecessors, (24810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24810 transitions. [2022-03-15 15:34:15,491 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24810 transitions. Word has length 29 [2022-03-15 15:34:15,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:15,491 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 24810 transitions. [2022-03-15 15:34:15,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:15,491 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24810 transitions. [2022-03-15 15:34:15,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:15,502 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:15,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:15,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable891 [2022-03-15 15:34:15,502 INFO L402 AbstractCegarLoop]: === Iteration 893 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:15,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:15,503 INFO L85 PathProgramCache]: Analyzing trace with hash -762219485, now seen corresponding path program 888 times [2022-03-15 15:34:15,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:15,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963070516] [2022-03-15 15:34:15,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:15,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:15,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:15,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:15,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963070516] [2022-03-15 15:34:15,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963070516] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:15,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:15,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:15,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678445634] [2022-03-15 15:34:15,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:15,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:15,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:15,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:15,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:15,666 INFO L87 Difference]: Start difference. First operand 5263 states and 24810 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:15,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:15,948 INFO L93 Difference]: Finished difference Result 11232 states and 50426 transitions. [2022-03-15 15:34:15,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:15,949 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:15,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:15,984 INFO L225 Difference]: With dead ends: 11232 [2022-03-15 15:34:15,984 INFO L226 Difference]: Without dead ends: 10601 [2022-03-15 15:34:15,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:15,985 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 139 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:15,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 222 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:34:16,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10601 states. [2022-03-15 15:34:16,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10601 to 5095. [2022-03-15 15:34:16,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.7538280329799765) internal successors, (24216), 5094 states have internal predecessors, (24216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:16,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24216 transitions. [2022-03-15 15:34:16,140 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24216 transitions. Word has length 29 [2022-03-15 15:34:16,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:16,140 INFO L470 AbstractCegarLoop]: Abstraction has 5095 states and 24216 transitions. [2022-03-15 15:34:16,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:16,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24216 transitions. [2022-03-15 15:34:16,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:16,150 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:16,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:16,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable892 [2022-03-15 15:34:16,151 INFO L402 AbstractCegarLoop]: === Iteration 894 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:16,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:16,151 INFO L85 PathProgramCache]: Analyzing trace with hash -167948285, now seen corresponding path program 889 times [2022-03-15 15:34:16,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:16,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82514309] [2022-03-15 15:34:16,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:16,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:16,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:16,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82514309] [2022-03-15 15:34:16,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82514309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:16,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:16,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:16,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742536285] [2022-03-15 15:34:16,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:16,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:16,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:16,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:16,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:16,312 INFO L87 Difference]: Start difference. First operand 5095 states and 24216 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:16,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:16,521 INFO L93 Difference]: Finished difference Result 11612 states and 52034 transitions. [2022-03-15 15:34:16,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:16,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:16,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:16,558 INFO L225 Difference]: With dead ends: 11612 [2022-03-15 15:34:16,558 INFO L226 Difference]: Without dead ends: 11197 [2022-03-15 15:34:16,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:16,558 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 164 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:16,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 209 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:16,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11197 states. [2022-03-15 15:34:16,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11197 to 5235. [2022-03-15 15:34:16,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.748184944593046) internal successors, (24852), 5234 states have internal predecessors, (24852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:16,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24852 transitions. [2022-03-15 15:34:16,717 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24852 transitions. Word has length 29 [2022-03-15 15:34:16,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:16,717 INFO L470 AbstractCegarLoop]: Abstraction has 5235 states and 24852 transitions. [2022-03-15 15:34:16,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:16,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24852 transitions. [2022-03-15 15:34:16,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:16,728 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:16,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:16,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable893 [2022-03-15 15:34:16,729 INFO L402 AbstractCegarLoop]: === Iteration 895 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:16,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:16,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1153152315, now seen corresponding path program 890 times [2022-03-15 15:34:16,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:16,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614992775] [2022-03-15 15:34:16,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:16,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:16,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:16,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:16,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614992775] [2022-03-15 15:34:16,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614992775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:16,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:16,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:16,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850952875] [2022-03-15 15:34:16,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:16,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:16,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:16,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:16,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:16,833 INFO L87 Difference]: Start difference. First operand 5235 states and 24852 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:16,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:16,984 INFO L93 Difference]: Finished difference Result 11739 states and 52513 transitions. [2022-03-15 15:34:16,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:16,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:16,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:17,020 INFO L225 Difference]: With dead ends: 11739 [2022-03-15 15:34:17,020 INFO L226 Difference]: Without dead ends: 11117 [2022-03-15 15:34:17,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:17,020 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 183 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:17,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 198 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:17,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11117 states. [2022-03-15 15:34:17,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11117 to 5155. [2022-03-15 15:34:17,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.752037252619325) internal successors, (24492), 5154 states have internal predecessors, (24492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:17,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24492 transitions. [2022-03-15 15:34:17,187 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24492 transitions. Word has length 29 [2022-03-15 15:34:17,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:17,187 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24492 transitions. [2022-03-15 15:34:17,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:17,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24492 transitions. [2022-03-15 15:34:17,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:17,199 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:17,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:17,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable894 [2022-03-15 15:34:17,199 INFO L402 AbstractCegarLoop]: === Iteration 896 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:17,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2055451743, now seen corresponding path program 891 times [2022-03-15 15:34:17,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:17,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015808905] [2022-03-15 15:34:17,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:17,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:17,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:17,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015808905] [2022-03-15 15:34:17,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015808905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:17,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:17,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:17,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754977069] [2022-03-15 15:34:17,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:17,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:17,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:17,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:17,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:17,313 INFO L87 Difference]: Start difference. First operand 5155 states and 24492 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:17,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:17,487 INFO L93 Difference]: Finished difference Result 11513 states and 51587 transitions. [2022-03-15 15:34:17,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:17,487 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:17,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:17,524 INFO L225 Difference]: With dead ends: 11513 [2022-03-15 15:34:17,524 INFO L226 Difference]: Without dead ends: 11098 [2022-03-15 15:34:17,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:17,524 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 177 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:17,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 214 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:17,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11098 states. [2022-03-15 15:34:17,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11098 to 5203. [2022-03-15 15:34:17,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.742022299115725) internal successors, (24668), 5202 states have internal predecessors, (24668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:17,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24668 transitions. [2022-03-15 15:34:17,696 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24668 transitions. Word has length 29 [2022-03-15 15:34:17,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:17,696 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24668 transitions. [2022-03-15 15:34:17,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:17,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24668 transitions. [2022-03-15 15:34:17,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:17,707 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:17,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:17,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable895 [2022-03-15 15:34:17,707 INFO L402 AbstractCegarLoop]: === Iteration 897 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1237458691, now seen corresponding path program 892 times [2022-03-15 15:34:17,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:17,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930705168] [2022-03-15 15:34:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:17,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:17,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:17,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:17,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930705168] [2022-03-15 15:34:17,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930705168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:17,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:17,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:17,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529193834] [2022-03-15 15:34:17,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:17,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:17,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:17,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:17,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:17,814 INFO L87 Difference]: Start difference. First operand 5203 states and 24668 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:17,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:17,987 INFO L93 Difference]: Finished difference Result 11573 states and 51803 transitions. [2022-03-15 15:34:17,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:17,988 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:17,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:18,022 INFO L225 Difference]: With dead ends: 11573 [2022-03-15 15:34:18,022 INFO L226 Difference]: Without dead ends: 11050 [2022-03-15 15:34:18,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:18,022 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 166 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:18,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 200 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:18,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11050 states. [2022-03-15 15:34:18,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11050 to 5155. [2022-03-15 15:34:18,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.7473806752037255) internal successors, (24468), 5154 states have internal predecessors, (24468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:18,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24468 transitions. [2022-03-15 15:34:18,173 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24468 transitions. Word has length 29 [2022-03-15 15:34:18,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:18,173 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24468 transitions. [2022-03-15 15:34:18,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:18,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24468 transitions. [2022-03-15 15:34:18,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:18,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:18,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:18,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable896 [2022-03-15 15:34:18,183 INFO L402 AbstractCegarLoop]: === Iteration 898 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:18,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:18,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1627562309, now seen corresponding path program 893 times [2022-03-15 15:34:18,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:18,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809995275] [2022-03-15 15:34:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:18,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:18,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:18,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809995275] [2022-03-15 15:34:18,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809995275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:18,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:18,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:18,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939460288] [2022-03-15 15:34:18,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:18,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:18,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:18,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:18,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:18,358 INFO L87 Difference]: Start difference. First operand 5155 states and 24468 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:18,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:18,541 INFO L93 Difference]: Finished difference Result 11829 states and 52908 transitions. [2022-03-15 15:34:18,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:18,541 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:18,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:18,577 INFO L225 Difference]: With dead ends: 11829 [2022-03-15 15:34:18,578 INFO L226 Difference]: Without dead ends: 11287 [2022-03-15 15:34:18,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:18,578 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 170 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:18,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 213 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:18,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11287 states. [2022-03-15 15:34:18,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11287 to 5265. [2022-03-15 15:34:18,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.7251139817629175) internal successors, (24873), 5264 states have internal predecessors, (24873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24873 transitions. [2022-03-15 15:34:18,768 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24873 transitions. Word has length 29 [2022-03-15 15:34:18,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:18,768 INFO L470 AbstractCegarLoop]: Abstraction has 5265 states and 24873 transitions. [2022-03-15 15:34:18,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:18,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24873 transitions. [2022-03-15 15:34:18,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:18,780 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:18,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:18,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable897 [2022-03-15 15:34:18,780 INFO L402 AbstractCegarLoop]: === Iteration 899 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:18,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:18,780 INFO L85 PathProgramCache]: Analyzing trace with hash 886610211, now seen corresponding path program 894 times [2022-03-15 15:34:18,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:18,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847725585] [2022-03-15 15:34:18,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:18,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:18,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:18,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:18,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847725585] [2022-03-15 15:34:18,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847725585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:18,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:18,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:18,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787868917] [2022-03-15 15:34:18,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:18,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:18,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:18,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:18,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:18,898 INFO L87 Difference]: Start difference. First operand 5265 states and 24873 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:19,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:19,065 INFO L93 Difference]: Finished difference Result 11762 states and 52535 transitions. [2022-03-15 15:34:19,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:19,066 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:19,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:19,101 INFO L225 Difference]: With dead ends: 11762 [2022-03-15 15:34:19,101 INFO L226 Difference]: Without dead ends: 11137 [2022-03-15 15:34:19,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:19,102 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 171 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:19,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 208 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:19,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-03-15 15:34:19,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 5115. [2022-03-15 15:34:19,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.75322643723113) internal successors, (24308), 5114 states have internal predecessors, (24308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:19,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24308 transitions. [2022-03-15 15:34:19,253 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24308 transitions. Word has length 29 [2022-03-15 15:34:19,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:19,253 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24308 transitions. [2022-03-15 15:34:19,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:19,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24308 transitions. [2022-03-15 15:34:19,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:19,264 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:19,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:19,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable898 [2022-03-15 15:34:19,264 INFO L402 AbstractCegarLoop]: === Iteration 900 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:19,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:19,264 INFO L85 PathProgramCache]: Analyzing trace with hash 317022433, now seen corresponding path program 895 times [2022-03-15 15:34:19,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:19,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202060386] [2022-03-15 15:34:19,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:19,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:19,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:19,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:19,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202060386] [2022-03-15 15:34:19,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202060386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:19,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:19,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:19,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569807802] [2022-03-15 15:34:19,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:19,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:19,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:19,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:19,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:19,373 INFO L87 Difference]: Start difference. First operand 5115 states and 24308 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:19,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:19,564 INFO L93 Difference]: Finished difference Result 11514 states and 51583 transitions. [2022-03-15 15:34:19,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:19,564 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:19,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:19,598 INFO L225 Difference]: With dead ends: 11514 [2022-03-15 15:34:19,598 INFO L226 Difference]: Without dead ends: 11099 [2022-03-15 15:34:19,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:19,598 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:19,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 231 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:19,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11099 states. [2022-03-15 15:34:19,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11099 to 5235. [2022-03-15 15:34:19,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.744363775315247) internal successors, (24832), 5234 states have internal predecessors, (24832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:19,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24832 transitions. [2022-03-15 15:34:19,752 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24832 transitions. Word has length 29 [2022-03-15 15:34:19,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:19,752 INFO L470 AbstractCegarLoop]: Abstraction has 5235 states and 24832 transitions. [2022-03-15 15:34:19,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24832 transitions. [2022-03-15 15:34:19,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:19,762 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:19,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:19,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable899 [2022-03-15 15:34:19,762 INFO L402 AbstractCegarLoop]: === Iteration 901 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:19,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:19,763 INFO L85 PathProgramCache]: Analyzing trace with hash -668181597, now seen corresponding path program 896 times [2022-03-15 15:34:19,763 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:19,763 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574281296] [2022-03-15 15:34:19,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:19,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:19,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:19,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574281296] [2022-03-15 15:34:19,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574281296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:19,946 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:19,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:19,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905881527] [2022-03-15 15:34:19,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:19,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:19,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:19,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:19,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:19,947 INFO L87 Difference]: Start difference. First operand 5235 states and 24832 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:20,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:20,153 INFO L93 Difference]: Finished difference Result 11641 states and 52062 transitions. [2022-03-15 15:34:20,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:20,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:20,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:20,189 INFO L225 Difference]: With dead ends: 11641 [2022-03-15 15:34:20,189 INFO L226 Difference]: Without dead ends: 11019 [2022-03-15 15:34:20,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:20,189 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:20,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 205 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:20,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11019 states. [2022-03-15 15:34:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11019 to 5155. [2022-03-15 15:34:20,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.748156771439659) internal successors, (24472), 5154 states have internal predecessors, (24472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:20,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24472 transitions. [2022-03-15 15:34:20,342 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24472 transitions. Word has length 29 [2022-03-15 15:34:20,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:20,343 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24472 transitions. [2022-03-15 15:34:20,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:20,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24472 transitions. [2022-03-15 15:34:20,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:20,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:20,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:20,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable900 [2022-03-15 15:34:20,353 INFO L402 AbstractCegarLoop]: === Iteration 902 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:20,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:20,353 INFO L85 PathProgramCache]: Analyzing trace with hash 26778785, now seen corresponding path program 897 times [2022-03-15 15:34:20,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:20,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843263705] [2022-03-15 15:34:20,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:20,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:20,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:20,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:20,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843263705] [2022-03-15 15:34:20,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843263705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:20,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:20,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:20,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348882760] [2022-03-15 15:34:20,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:20,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:20,536 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:20,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:20,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:20,536 INFO L87 Difference]: Start difference. First operand 5155 states and 24472 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:20,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:20,750 INFO L93 Difference]: Finished difference Result 11307 states and 50696 transitions. [2022-03-15 15:34:20,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:20,750 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:20,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:20,785 INFO L225 Difference]: With dead ends: 11307 [2022-03-15 15:34:20,785 INFO L226 Difference]: Without dead ends: 10892 [2022-03-15 15:34:20,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:20,785 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 177 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:20,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 216 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:20,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10892 states. [2022-03-15 15:34:20,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10892 to 5203. [2022-03-15 15:34:20,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.738177623990773) internal successors, (24648), 5202 states have internal predecessors, (24648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:20,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24648 transitions. [2022-03-15 15:34:20,937 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24648 transitions. Word has length 29 [2022-03-15 15:34:20,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:20,937 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24648 transitions. [2022-03-15 15:34:20,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:20,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24648 transitions. [2022-03-15 15:34:20,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:20,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:20,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:20,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable901 [2022-03-15 15:34:20,947 INFO L402 AbstractCegarLoop]: === Iteration 903 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:20,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:20,948 INFO L85 PathProgramCache]: Analyzing trace with hash 2088345347, now seen corresponding path program 898 times [2022-03-15 15:34:20,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:20,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378320298] [2022-03-15 15:34:20,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:20,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:21,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:21,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:21,098 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378320298] [2022-03-15 15:34:21,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378320298] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:21,098 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:21,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:21,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871706664] [2022-03-15 15:34:21,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:21,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:21,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:21,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:21,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:21,099 INFO L87 Difference]: Start difference. First operand 5203 states and 24648 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:21,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:21,272 INFO L93 Difference]: Finished difference Result 11035 states and 49687 transitions. [2022-03-15 15:34:21,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:21,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:21,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:21,304 INFO L225 Difference]: With dead ends: 11035 [2022-03-15 15:34:21,305 INFO L226 Difference]: Without dead ends: 10524 [2022-03-15 15:34:21,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:21,305 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:21,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 219 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:21,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10524 states. [2022-03-15 15:34:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10524 to 5155. [2022-03-15 15:34:21,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.743500194024059) internal successors, (24448), 5154 states have internal predecessors, (24448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:21,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24448 transitions. [2022-03-15 15:34:21,469 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24448 transitions. Word has length 29 [2022-03-15 15:34:21,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:21,469 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24448 transitions. [2022-03-15 15:34:21,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:21,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24448 transitions. [2022-03-15 15:34:21,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:21,480 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:21,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:21,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable902 [2022-03-15 15:34:21,480 INFO L402 AbstractCegarLoop]: === Iteration 904 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:21,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:21,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1134051653, now seen corresponding path program 899 times [2022-03-15 15:34:21,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:21,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142045928] [2022-03-15 15:34:21,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:21,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:21,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:21,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:21,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142045928] [2022-03-15 15:34:21,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142045928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:21,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:21,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:21,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292479036] [2022-03-15 15:34:21,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:21,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:21,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:21,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:21,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:21,606 INFO L87 Difference]: Start difference. First operand 5155 states and 24448 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:21,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:21,837 INFO L93 Difference]: Finished difference Result 11490 states and 51467 transitions. [2022-03-15 15:34:21,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:21,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:21,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:21,874 INFO L225 Difference]: With dead ends: 11490 [2022-03-15 15:34:21,874 INFO L226 Difference]: Without dead ends: 10948 [2022-03-15 15:34:21,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:21,874 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 143 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:21,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 251 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:21,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10948 states. [2022-03-15 15:34:22,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10948 to 5259. [2022-03-15 15:34:22,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7234689996196275) internal successors, (24836), 5258 states have internal predecessors, (24836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:22,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24836 transitions. [2022-03-15 15:34:22,046 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24836 transitions. Word has length 29 [2022-03-15 15:34:22,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:22,046 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 24836 transitions. [2022-03-15 15:34:22,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:22,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24836 transitions. [2022-03-15 15:34:22,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:22,057 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:22,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:22,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable903 [2022-03-15 15:34:22,057 INFO L402 AbstractCegarLoop]: === Iteration 905 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:22,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:22,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1695484451, now seen corresponding path program 900 times [2022-03-15 15:34:22,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:22,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696588512] [2022-03-15 15:34:22,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:22,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:22,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:22,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:22,240 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696588512] [2022-03-15 15:34:22,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696588512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:22,240 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:22,240 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:22,240 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859363840] [2022-03-15 15:34:22,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:22,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:22,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:22,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:22,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:22,241 INFO L87 Difference]: Start difference. First operand 5259 states and 24836 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:22,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:22,462 INFO L93 Difference]: Finished difference Result 11091 states and 49875 transitions. [2022-03-15 15:34:22,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:22,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:22,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:22,495 INFO L225 Difference]: With dead ends: 11091 [2022-03-15 15:34:22,495 INFO L226 Difference]: Without dead ends: 10484 [2022-03-15 15:34:22,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:22,495 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 159 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:22,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 220 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:22,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10484 states. [2022-03-15 15:34:22,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10484 to 5115. [2022-03-15 15:34:22,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.7493156042237) internal successors, (24288), 5114 states have internal predecessors, (24288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24288 transitions. [2022-03-15 15:34:22,693 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24288 transitions. Word has length 29 [2022-03-15 15:34:22,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:22,694 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24288 transitions. [2022-03-15 15:34:22,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:22,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24288 transitions. [2022-03-15 15:34:22,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:22,704 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:22,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:22,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable904 [2022-03-15 15:34:22,704 INFO L402 AbstractCegarLoop]: === Iteration 906 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:22,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:22,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1758132033, now seen corresponding path program 901 times [2022-03-15 15:34:22,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:22,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017315002] [2022-03-15 15:34:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:22,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:22,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:22,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017315002] [2022-03-15 15:34:22,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017315002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:22,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:22,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:22,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674288488] [2022-03-15 15:34:22,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:22,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:22,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:22,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:22,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:22,852 INFO L87 Difference]: Start difference. First operand 5115 states and 24288 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:23,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:23,057 INFO L93 Difference]: Finished difference Result 11300 states and 50669 transitions. [2022-03-15 15:34:23,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:23,057 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:23,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:23,092 INFO L225 Difference]: With dead ends: 11300 [2022-03-15 15:34:23,092 INFO L226 Difference]: Without dead ends: 10885 [2022-03-15 15:34:23,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:23,092 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 175 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:23,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 206 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:23,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2022-03-15 15:34:23,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 5187. [2022-03-15 15:34:23,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.741226378711917) internal successors, (24588), 5186 states have internal predecessors, (24588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:23,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24588 transitions. [2022-03-15 15:34:23,243 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24588 transitions. Word has length 29 [2022-03-15 15:34:23,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:23,243 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24588 transitions. [2022-03-15 15:34:23,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:23,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24588 transitions. [2022-03-15 15:34:23,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:23,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:23,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:23,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable905 [2022-03-15 15:34:23,254 INFO L402 AbstractCegarLoop]: === Iteration 907 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:23,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:23,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1534778401, now seen corresponding path program 902 times [2022-03-15 15:34:23,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:23,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564052844] [2022-03-15 15:34:23,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:23,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:23,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:23,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:23,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564052844] [2022-03-15 15:34:23,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564052844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:23,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:23,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:23,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882846099] [2022-03-15 15:34:23,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:23,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:23,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:23,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:23,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:23,392 INFO L87 Difference]: Start difference. First operand 5187 states and 24588 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:23,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:23,631 INFO L93 Difference]: Finished difference Result 11360 states and 50885 transitions. [2022-03-15 15:34:23,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:23,632 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:23,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:23,670 INFO L225 Difference]: With dead ends: 11360 [2022-03-15 15:34:23,671 INFO L226 Difference]: Without dead ends: 10837 [2022-03-15 15:34:23,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:23,671 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 154 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:23,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 214 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:23,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10837 states. [2022-03-15 15:34:23,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10837 to 5139. [2022-03-15 15:34:23,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.746594005449591) internal successors, (24388), 5138 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:23,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24388 transitions. [2022-03-15 15:34:23,854 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24388 transitions. Word has length 29 [2022-03-15 15:34:23,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:23,854 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24388 transitions. [2022-03-15 15:34:23,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:23,855 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24388 transitions. [2022-03-15 15:34:23,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:23,867 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:23,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:23,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable906 [2022-03-15 15:34:23,867 INFO L402 AbstractCegarLoop]: === Iteration 908 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:23,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:23,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1362875553, now seen corresponding path program 903 times [2022-03-15 15:34:23,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:23,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042933325] [2022-03-15 15:34:23,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:23,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:24,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:24,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:24,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042933325] [2022-03-15 15:34:24,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042933325] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:24,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:24,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:24,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860741498] [2022-03-15 15:34:24,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:24,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:24,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:24,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:24,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:24,059 INFO L87 Difference]: Start difference. First operand 5139 states and 24388 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:24,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:24,268 INFO L93 Difference]: Finished difference Result 11192 states and 50205 transitions. [2022-03-15 15:34:24,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:24,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:24,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:24,302 INFO L225 Difference]: With dead ends: 11192 [2022-03-15 15:34:24,302 INFO L226 Difference]: Without dead ends: 10777 [2022-03-15 15:34:24,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:24,302 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:24,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 242 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:24,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10777 states. [2022-03-15 15:34:24,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10777 to 5187. [2022-03-15 15:34:24,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.736598534516005) internal successors, (24564), 5186 states have internal predecessors, (24564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:24,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24564 transitions. [2022-03-15 15:34:24,465 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24564 transitions. Word has length 29 [2022-03-15 15:34:24,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:24,466 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24564 transitions. [2022-03-15 15:34:24,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:24,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24564 transitions. [2022-03-15 15:34:24,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:24,476 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:24,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:24,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable907 [2022-03-15 15:34:24,476 INFO L402 AbstractCegarLoop]: === Iteration 909 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:24,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:24,477 INFO L85 PathProgramCache]: Analyzing trace with hash 673721121, now seen corresponding path program 904 times [2022-03-15 15:34:24,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:24,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443330966] [2022-03-15 15:34:24,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:24,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:24,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:24,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:24,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443330966] [2022-03-15 15:34:24,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443330966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:24,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:24,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:24,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769240537] [2022-03-15 15:34:24,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:24,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:24,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:24,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:24,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:24,599 INFO L87 Difference]: Start difference. First operand 5187 states and 24564 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:24,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:24,830 INFO L93 Difference]: Finished difference Result 10920 states and 49196 transitions. [2022-03-15 15:34:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:24,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:24,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:24,865 INFO L225 Difference]: With dead ends: 10920 [2022-03-15 15:34:24,865 INFO L226 Difference]: Without dead ends: 10409 [2022-03-15 15:34:24,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:24,865 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 157 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:24,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 238 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:24,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10409 states. [2022-03-15 15:34:25,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10409 to 5139. [2022-03-15 15:34:25,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.741922927209031) internal successors, (24364), 5138 states have internal predecessors, (24364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:25,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24364 transitions. [2022-03-15 15:34:25,029 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24364 transitions. Word has length 29 [2022-03-15 15:34:25,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:25,029 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24364 transitions. [2022-03-15 15:34:25,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:25,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24364 transitions. [2022-03-15 15:34:25,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:25,040 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:25,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:25,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable908 [2022-03-15 15:34:25,041 INFO L402 AbstractCegarLoop]: === Iteration 910 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:25,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:25,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1574646269, now seen corresponding path program 905 times [2022-03-15 15:34:25,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:25,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678169390] [2022-03-15 15:34:25,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:25,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:25,213 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:25,213 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678169390] [2022-03-15 15:34:25,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678169390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:25,213 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:25,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:25,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932753242] [2022-03-15 15:34:25,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:25,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:25,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:25,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:25,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:25,214 INFO L87 Difference]: Start difference. First operand 5139 states and 24364 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:25,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:25,405 INFO L93 Difference]: Finished difference Result 11276 states and 50569 transitions. [2022-03-15 15:34:25,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:25,405 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:25,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:25,442 INFO L225 Difference]: With dead ends: 11276 [2022-03-15 15:34:25,442 INFO L226 Difference]: Without dead ends: 10801 [2022-03-15 15:34:25,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:25,442 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 182 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:25,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 196 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:25,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10801 states. [2022-03-15 15:34:25,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10801 to 5211. [2022-03-15 15:34:25,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.72936660268714) internal successors, (24640), 5210 states have internal predecessors, (24640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:25,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24640 transitions. [2022-03-15 15:34:25,600 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24640 transitions. Word has length 29 [2022-03-15 15:34:25,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:25,601 INFO L470 AbstractCegarLoop]: Abstraction has 5211 states and 24640 transitions. [2022-03-15 15:34:25,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:25,601 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24640 transitions. [2022-03-15 15:34:25,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:25,612 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:25,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:25,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable909 [2022-03-15 15:34:25,612 INFO L402 AbstractCegarLoop]: === Iteration 911 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:25,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:25,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1328176481, now seen corresponding path program 906 times [2022-03-15 15:34:25,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:25,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630839094] [2022-03-15 15:34:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:25,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:25,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:25,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:25,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630839094] [2022-03-15 15:34:25,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630839094] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:25,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:25,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:25,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832692809] [2022-03-15 15:34:25,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:25,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:25,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:25,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:25,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:25,756 INFO L87 Difference]: Start difference. First operand 5211 states and 24640 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:25,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:25,955 INFO L93 Difference]: Finished difference Result 10944 states and 49272 transitions. [2022-03-15 15:34:25,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:25,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:25,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:25,987 INFO L225 Difference]: With dead ends: 10944 [2022-03-15 15:34:25,988 INFO L226 Difference]: Without dead ends: 10385 [2022-03-15 15:34:25,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:25,988 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 149 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:25,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 210 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:26,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10385 states. [2022-03-15 15:34:26,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10385 to 5115. [2022-03-15 15:34:26,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.746969104419241) internal successors, (24276), 5114 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:26,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24276 transitions. [2022-03-15 15:34:26,142 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24276 transitions. Word has length 29 [2022-03-15 15:34:26,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:26,142 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24276 transitions. [2022-03-15 15:34:26,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:26,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24276 transitions. [2022-03-15 15:34:26,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:26,152 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:26,152 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:26,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable910 [2022-03-15 15:34:26,152 INFO L402 AbstractCegarLoop]: === Iteration 912 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:26,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:26,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1544480827, now seen corresponding path program 907 times [2022-03-15 15:34:26,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:26,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882483057] [2022-03-15 15:34:26,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:26,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:26,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:26,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:26,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882483057] [2022-03-15 15:34:26,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882483057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:26,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:26,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:26,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701582663] [2022-03-15 15:34:26,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:26,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:26,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:26,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:26,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:26,296 INFO L87 Difference]: Start difference. First operand 5115 states and 24276 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:26,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:26,510 INFO L93 Difference]: Finished difference Result 11827 states and 52945 transitions. [2022-03-15 15:34:26,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:26,511 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:26,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:26,545 INFO L225 Difference]: With dead ends: 11827 [2022-03-15 15:34:26,545 INFO L226 Difference]: Without dead ends: 11285 [2022-03-15 15:34:26,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:26,545 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 152 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:26,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 254 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:26,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11285 states. [2022-03-15 15:34:26,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11285 to 5277. [2022-03-15 15:34:26,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 4.7295299469294925) internal successors, (24953), 5276 states have internal predecessors, (24953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:26,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 24953 transitions. [2022-03-15 15:34:26,695 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 24953 transitions. Word has length 29 [2022-03-15 15:34:26,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:26,695 INFO L470 AbstractCegarLoop]: Abstraction has 5277 states and 24953 transitions. [2022-03-15 15:34:26,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:26,695 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 24953 transitions. [2022-03-15 15:34:26,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:26,705 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:26,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:26,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable911 [2022-03-15 15:34:26,705 INFO L402 AbstractCegarLoop]: === Iteration 913 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:26,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:26,705 INFO L85 PathProgramCache]: Analyzing trace with hash 2009534371, now seen corresponding path program 908 times [2022-03-15 15:34:26,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:26,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270619402] [2022-03-15 15:34:26,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:26,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:26,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:26,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:26,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270619402] [2022-03-15 15:34:26,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270619402] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:26,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:26,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:26,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531938546] [2022-03-15 15:34:26,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:26,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:26,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:26,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:26,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:26,849 INFO L87 Difference]: Start difference. First operand 5277 states and 24953 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:27,076 INFO L93 Difference]: Finished difference Result 11760 states and 52572 transitions. [2022-03-15 15:34:27,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:27,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:27,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:27,117 INFO L225 Difference]: With dead ends: 11760 [2022-03-15 15:34:27,117 INFO L226 Difference]: Without dead ends: 11175 [2022-03-15 15:34:27,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:27,117 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 154 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:27,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 210 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:27,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11175 states. [2022-03-15 15:34:27,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11175 to 5167. [2022-03-15 15:34:27,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.741773132017035) internal successors, (24496), 5166 states have internal predecessors, (24496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:27,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24496 transitions. [2022-03-15 15:34:27,307 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24496 transitions. Word has length 29 [2022-03-15 15:34:27,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:27,308 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24496 transitions. [2022-03-15 15:34:27,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:27,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24496 transitions. [2022-03-15 15:34:27,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:27,319 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:27,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:27,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable912 [2022-03-15 15:34:27,319 INFO L402 AbstractCegarLoop]: === Iteration 914 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:27,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:27,319 INFO L85 PathProgramCache]: Analyzing trace with hash 634406819, now seen corresponding path program 909 times [2022-03-15 15:34:27,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:27,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917462876] [2022-03-15 15:34:27,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:27,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:27,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:27,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:27,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917462876] [2022-03-15 15:34:27,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917462876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:27,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:27,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:27,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081026457] [2022-03-15 15:34:27,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:27,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:27,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:27,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:27,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:27,504 INFO L87 Difference]: Start difference. First operand 5167 states and 24496 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:27,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:27,720 INFO L93 Difference]: Finished difference Result 11586 states and 51903 transitions. [2022-03-15 15:34:27,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:27,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:27,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:27,755 INFO L225 Difference]: With dead ends: 11586 [2022-03-15 15:34:27,755 INFO L226 Difference]: Without dead ends: 11044 [2022-03-15 15:34:27,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:27,755 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 163 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:27,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 208 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:27,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11044 states. [2022-03-15 15:34:27,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11044 to 5271. [2022-03-15 15:34:27,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5271 states, 5270 states have (on average 4.721821631878558) internal successors, (24884), 5270 states have internal predecessors, (24884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:27,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5271 states to 5271 states and 24884 transitions. [2022-03-15 15:34:27,902 INFO L78 Accepts]: Start accepts. Automaton has 5271 states and 24884 transitions. Word has length 29 [2022-03-15 15:34:27,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:27,902 INFO L470 AbstractCegarLoop]: Abstraction has 5271 states and 24884 transitions. [2022-03-15 15:34:27,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:27,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5271 states and 24884 transitions. [2022-03-15 15:34:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:27,912 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:27,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:27,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable913 [2022-03-15 15:34:27,912 INFO L402 AbstractCegarLoop]: === Iteration 915 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:27,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:27,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1802387293, now seen corresponding path program 910 times [2022-03-15 15:34:27,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:27,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317693295] [2022-03-15 15:34:27,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:27,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:28,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:28,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:28,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317693295] [2022-03-15 15:34:28,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317693295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:28,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:28,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:28,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147967982] [2022-03-15 15:34:28,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:28,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:28,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:28,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:28,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:28,028 INFO L87 Difference]: Start difference. First operand 5271 states and 24884 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:28,194 INFO L93 Difference]: Finished difference Result 11187 states and 50311 transitions. [2022-03-15 15:34:28,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:28,194 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:28,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:28,225 INFO L225 Difference]: With dead ends: 11187 [2022-03-15 15:34:28,225 INFO L226 Difference]: Without dead ends: 10620 [2022-03-15 15:34:28,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:28,225 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 145 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:28,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 231 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:28,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10620 states. [2022-03-15 15:34:28,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10620 to 5167. [2022-03-15 15:34:28,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.7317073170731705) internal successors, (24444), 5166 states have internal predecessors, (24444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:28,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24444 transitions. [2022-03-15 15:34:28,356 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24444 transitions. Word has length 29 [2022-03-15 15:34:28,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:28,357 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24444 transitions. [2022-03-15 15:34:28,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:28,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24444 transitions. [2022-03-15 15:34:28,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:28,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:28,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:28,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable914 [2022-03-15 15:34:28,366 INFO L402 AbstractCegarLoop]: === Iteration 916 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:28,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:28,366 INFO L85 PathProgramCache]: Analyzing trace with hash 380573953, now seen corresponding path program 911 times [2022-03-15 15:34:28,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:28,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131772424] [2022-03-15 15:34:28,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:28,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:28,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:28,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:28,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131772424] [2022-03-15 15:34:28,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131772424] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:28,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:28,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:28,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952731189] [2022-03-15 15:34:28,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:28,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:28,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:28,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:28,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:28,498 INFO L87 Difference]: Start difference. First operand 5167 states and 24444 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:28,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:28,689 INFO L93 Difference]: Finished difference Result 11487 states and 51444 transitions. [2022-03-15 15:34:28,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:28,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:28,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:28,722 INFO L225 Difference]: With dead ends: 11487 [2022-03-15 15:34:28,722 INFO L226 Difference]: Without dead ends: 11012 [2022-03-15 15:34:28,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:28,723 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 162 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:28,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 232 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:28,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11012 states. [2022-03-15 15:34:28,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11012 to 5239. [2022-03-15 15:34:28,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.719358533791524) internal successors, (24720), 5238 states have internal predecessors, (24720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:28,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24720 transitions. [2022-03-15 15:34:28,855 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24720 transitions. Word has length 29 [2022-03-15 15:34:28,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:28,855 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 24720 transitions. [2022-03-15 15:34:28,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:28,855 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24720 transitions. [2022-03-15 15:34:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:28,864 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:28,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:28,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable915 [2022-03-15 15:34:28,864 INFO L402 AbstractCegarLoop]: === Iteration 917 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:28,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:28,865 INFO L85 PathProgramCache]: Analyzing trace with hash 173765987, now seen corresponding path program 912 times [2022-03-15 15:34:28,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:28,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058355446] [2022-03-15 15:34:28,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:28,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:28,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:28,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:28,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058355446] [2022-03-15 15:34:28,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058355446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:28,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:28,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:28,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632949881] [2022-03-15 15:34:28,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:28,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:28,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:28,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:28,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:28,979 INFO L87 Difference]: Start difference. First operand 5239 states and 24720 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:29,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:29,151 INFO L93 Difference]: Finished difference Result 11155 states and 50147 transitions. [2022-03-15 15:34:29,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:29,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:29,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:29,182 INFO L225 Difference]: With dead ends: 11155 [2022-03-15 15:34:29,183 INFO L226 Difference]: Without dead ends: 10548 [2022-03-15 15:34:29,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:29,183 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 148 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:29,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 219 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:29,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-03-15 15:34:29,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 5095. [2022-03-15 15:34:29,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.751864939144091) internal successors, (24206), 5094 states have internal predecessors, (24206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24206 transitions. [2022-03-15 15:34:29,318 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24206 transitions. Word has length 29 [2022-03-15 15:34:29,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:29,318 INFO L470 AbstractCegarLoop]: Abstraction has 5095 states and 24206 transitions. [2022-03-15 15:34:29,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:29,318 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24206 transitions. [2022-03-15 15:34:29,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:29,327 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:29,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:29,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable916 [2022-03-15 15:34:29,328 INFO L402 AbstractCegarLoop]: === Iteration 918 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:29,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:29,328 INFO L85 PathProgramCache]: Analyzing trace with hash 554778559, now seen corresponding path program 913 times [2022-03-15 15:34:29,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:29,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378319725] [2022-03-15 15:34:29,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:29,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:29,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:29,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378319725] [2022-03-15 15:34:29,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378319725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:29,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:29,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:29,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167846098] [2022-03-15 15:34:29,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:29,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:29,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:29,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:29,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:29,459 INFO L87 Difference]: Start difference. First operand 5095 states and 24206 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:29,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:29,692 INFO L93 Difference]: Finished difference Result 11169 states and 50102 transitions. [2022-03-15 15:34:29,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:29,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:29,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:29,728 INFO L225 Difference]: With dead ends: 11169 [2022-03-15 15:34:29,729 INFO L226 Difference]: Without dead ends: 10754 [2022-03-15 15:34:29,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:29,729 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 160 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:29,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 209 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:29,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10754 states. [2022-03-15 15:34:29,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10754 to 5179. [2022-03-15 15:34:29,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.745847817690228) internal successors, (24574), 5178 states have internal predecessors, (24574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:29,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24574 transitions. [2022-03-15 15:34:29,870 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24574 transitions. Word has length 29 [2022-03-15 15:34:29,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:29,870 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24574 transitions. [2022-03-15 15:34:29,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:29,870 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24574 transitions. [2022-03-15 15:34:29,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:29,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:29,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:29,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable917 [2022-03-15 15:34:29,881 INFO L402 AbstractCegarLoop]: === Iteration 919 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:29,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:29,882 INFO L85 PathProgramCache]: Analyzing trace with hash 784065569, now seen corresponding path program 914 times [2022-03-15 15:34:29,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:29,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613619257] [2022-03-15 15:34:29,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:29,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:30,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:30,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:30,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613619257] [2022-03-15 15:34:30,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613619257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:30,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:30,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:30,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003752630] [2022-03-15 15:34:30,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:30,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:30,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:30,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:30,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:30,042 INFO L87 Difference]: Start difference. First operand 5179 states and 24574 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:30,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:30,238 INFO L93 Difference]: Finished difference Result 11231 states and 50323 transitions. [2022-03-15 15:34:30,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:30,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:30,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:30,273 INFO L225 Difference]: With dead ends: 11231 [2022-03-15 15:34:30,273 INFO L226 Difference]: Without dead ends: 10706 [2022-03-15 15:34:30,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:30,273 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 175 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:30,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 206 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:30,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10706 states. [2022-03-15 15:34:30,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10706 to 5131. [2022-03-15 15:34:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.751267056530215) internal successors, (24374), 5130 states have internal predecessors, (24374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24374 transitions. [2022-03-15 15:34:30,426 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24374 transitions. Word has length 29 [2022-03-15 15:34:30,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:30,426 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24374 transitions. [2022-03-15 15:34:30,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24374 transitions. [2022-03-15 15:34:30,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:30,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:30,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:30,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable918 [2022-03-15 15:34:30,436 INFO L402 AbstractCegarLoop]: === Iteration 920 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:30,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:30,436 INFO L85 PathProgramCache]: Analyzing trace with hash -619181151, now seen corresponding path program 915 times [2022-03-15 15:34:30,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:30,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317577532] [2022-03-15 15:34:30,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:30,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:30,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:30,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:30,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317577532] [2022-03-15 15:34:30,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317577532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:30,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:30,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:30,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203857810] [2022-03-15 15:34:30,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:30,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:30,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:30,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:30,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:30,568 INFO L87 Difference]: Start difference. First operand 5131 states and 24374 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:30,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:30,774 INFO L93 Difference]: Finished difference Result 11167 states and 50073 transitions. [2022-03-15 15:34:30,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:30,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:30,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:30,809 INFO L225 Difference]: With dead ends: 11167 [2022-03-15 15:34:30,809 INFO L226 Difference]: Without dead ends: 10752 [2022-03-15 15:34:30,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:30,809 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 192 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:30,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 188 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:30,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10752 states. [2022-03-15 15:34:30,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10752 to 5179. [2022-03-15 15:34:30,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.741212823483971) internal successors, (24550), 5178 states have internal predecessors, (24550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:30,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24550 transitions. [2022-03-15 15:34:30,962 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24550 transitions. Word has length 29 [2022-03-15 15:34:30,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:30,962 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24550 transitions. [2022-03-15 15:34:30,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:30,962 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24550 transitions. [2022-03-15 15:34:30,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:30,972 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:30,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:30,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable919 [2022-03-15 15:34:30,972 INFO L402 AbstractCegarLoop]: === Iteration 921 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:30,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:30,973 INFO L85 PathProgramCache]: Analyzing trace with hash -76991711, now seen corresponding path program 916 times [2022-03-15 15:34:30,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:30,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901187078] [2022-03-15 15:34:30,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:30,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:31,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:31,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:31,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901187078] [2022-03-15 15:34:31,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901187078] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:31,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:31,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:31,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327943013] [2022-03-15 15:34:31,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:31,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:31,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:31,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:31,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:31,137 INFO L87 Difference]: Start difference. First operand 5179 states and 24550 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:31,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:31,327 INFO L93 Difference]: Finished difference Result 11227 states and 50289 transitions. [2022-03-15 15:34:31,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:31,327 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:31,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:31,361 INFO L225 Difference]: With dead ends: 11227 [2022-03-15 15:34:31,361 INFO L226 Difference]: Without dead ends: 10704 [2022-03-15 15:34:31,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:31,362 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 156 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:31,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 220 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:31,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10704 states. [2022-03-15 15:34:31,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10704 to 5131. [2022-03-15 15:34:31,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.746588693957115) internal successors, (24350), 5130 states have internal predecessors, (24350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:31,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24350 transitions. [2022-03-15 15:34:31,513 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24350 transitions. Word has length 29 [2022-03-15 15:34:31,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:31,514 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24350 transitions. [2022-03-15 15:34:31,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:31,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24350 transitions. [2022-03-15 15:34:31,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:31,524 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:31,524 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:31,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable920 [2022-03-15 15:34:31,524 INFO L402 AbstractCegarLoop]: === Iteration 922 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:31,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:31,524 INFO L85 PathProgramCache]: Analyzing trace with hash -119904509, now seen corresponding path program 917 times [2022-03-15 15:34:31,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:31,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72115889] [2022-03-15 15:34:31,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:31,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:31,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:31,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:31,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72115889] [2022-03-15 15:34:31,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72115889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:31,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:31,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:31,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254897478] [2022-03-15 15:34:31,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:31,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:31,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:31,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:31,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:31,665 INFO L87 Difference]: Start difference. First operand 5131 states and 24350 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:31,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:31,869 INFO L93 Difference]: Finished difference Result 11321 states and 50734 transitions. [2022-03-15 15:34:31,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:31,869 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:31,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:31,905 INFO L225 Difference]: With dead ends: 11321 [2022-03-15 15:34:31,906 INFO L226 Difference]: Without dead ends: 10844 [2022-03-15 15:34:31,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:31,906 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 149 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:31,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 259 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:31,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10844 states. [2022-03-15 15:34:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10844 to 5209. [2022-03-15 15:34:32,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.731758832565284) internal successors, (24643), 5208 states have internal predecessors, (24643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:32,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24643 transitions. [2022-03-15 15:34:32,081 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24643 transitions. Word has length 29 [2022-03-15 15:34:32,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:32,081 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24643 transitions. [2022-03-15 15:34:32,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:32,081 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24643 transitions. [2022-03-15 15:34:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:32,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:32,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:32,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable921 [2022-03-15 15:34:32,092 INFO L402 AbstractCegarLoop]: === Iteration 923 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:32,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:32,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1512049055, now seen corresponding path program 918 times [2022-03-15 15:34:32,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:32,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575584153] [2022-03-15 15:34:32,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:32,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:32,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:32,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:32,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575584153] [2022-03-15 15:34:32,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575584153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:32,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:32,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:32,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658129949] [2022-03-15 15:34:32,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:32,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:32,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:32,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:32,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:32,260 INFO L87 Difference]: Start difference. First operand 5209 states and 24643 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:32,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:32,461 INFO L93 Difference]: Finished difference Result 11319 states and 50651 transitions. [2022-03-15 15:34:32,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:32,461 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:32,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:32,498 INFO L225 Difference]: With dead ends: 11319 [2022-03-15 15:34:32,498 INFO L226 Difference]: Without dead ends: 10742 [2022-03-15 15:34:32,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:32,498 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 181 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:32,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 190 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:32,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2022-03-15 15:34:32,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 5107. [2022-03-15 15:34:32,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.751664708186447) internal successors, (24262), 5106 states have internal predecessors, (24262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:32,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24262 transitions. [2022-03-15 15:34:32,653 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24262 transitions. Word has length 29 [2022-03-15 15:34:32,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:32,653 INFO L470 AbstractCegarLoop]: Abstraction has 5107 states and 24262 transitions. [2022-03-15 15:34:32,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:32,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24262 transitions. [2022-03-15 15:34:32,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:32,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:32,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:32,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable922 [2022-03-15 15:34:32,664 INFO L402 AbstractCegarLoop]: === Iteration 924 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:32,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:32,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1955896097, now seen corresponding path program 919 times [2022-03-15 15:34:32,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:32,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252335893] [2022-03-15 15:34:32,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:32,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:32,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:32,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252335893] [2022-03-15 15:34:32,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252335893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:32,831 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:32,831 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:32,831 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881742926] [2022-03-15 15:34:32,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:32,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:32,831 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:32,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:32,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:32,832 INFO L87 Difference]: Start difference. First operand 5107 states and 24262 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:33,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:33,045 INFO L93 Difference]: Finished difference Result 11103 states and 49803 transitions. [2022-03-15 15:34:33,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:33,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:33,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:33,077 INFO L225 Difference]: With dead ends: 11103 [2022-03-15 15:34:33,077 INFO L226 Difference]: Without dead ends: 10688 [2022-03-15 15:34:33,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:33,077 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 168 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:33,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 224 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:33,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10688 states. [2022-03-15 15:34:33,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10688 to 5179. [2022-03-15 15:34:33,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.743530320587099) internal successors, (24562), 5178 states have internal predecessors, (24562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:33,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24562 transitions. [2022-03-15 15:34:33,212 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24562 transitions. Word has length 29 [2022-03-15 15:34:33,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:33,212 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24562 transitions. [2022-03-15 15:34:33,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:33,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24562 transitions. [2022-03-15 15:34:33,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:33,222 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:33,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:33,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable923 [2022-03-15 15:34:33,222 INFO L402 AbstractCegarLoop]: === Iteration 925 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:33,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:33,222 INFO L85 PathProgramCache]: Analyzing trace with hash -2109784189, now seen corresponding path program 920 times [2022-03-15 15:34:33,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:33,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893224099] [2022-03-15 15:34:33,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:33,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:33,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:33,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:33,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893224099] [2022-03-15 15:34:33,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893224099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:33,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:33,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:33,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869850296] [2022-03-15 15:34:33,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:33,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:33,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:33,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:33,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:33,372 INFO L87 Difference]: Start difference. First operand 5179 states and 24562 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:33,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:33,563 INFO L93 Difference]: Finished difference Result 11165 states and 50024 transitions. [2022-03-15 15:34:33,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:33,564 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:33,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:33,600 INFO L225 Difference]: With dead ends: 11165 [2022-03-15 15:34:33,600 INFO L226 Difference]: Without dead ends: 10640 [2022-03-15 15:34:33,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:33,600 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 163 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:33,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 217 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:33,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2022-03-15 15:34:33,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 5131. [2022-03-15 15:34:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.748927875243664) internal successors, (24362), 5130 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:33,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24362 transitions. [2022-03-15 15:34:33,794 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24362 transitions. Word has length 29 [2022-03-15 15:34:33,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:33,794 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24362 transitions. [2022-03-15 15:34:33,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24362 transitions. [2022-03-15 15:34:33,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:33,805 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:33,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:33,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable924 [2022-03-15 15:34:33,805 INFO L402 AbstractCegarLoop]: === Iteration 926 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:33,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:33,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1652800161, now seen corresponding path program 921 times [2022-03-15 15:34:33,805 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:33,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004299457] [2022-03-15 15:34:33,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:33,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:33,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:33,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004299457] [2022-03-15 15:34:33,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004299457] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:33,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:33,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:33,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322585871] [2022-03-15 15:34:33,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:33,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:33,919 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:33,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:33,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:33,920 INFO L87 Difference]: Start difference. First operand 5131 states and 24362 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:34,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:34,086 INFO L93 Difference]: Finished difference Result 10993 states and 49334 transitions. [2022-03-15 15:34:34,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:34,086 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:34,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:34,121 INFO L225 Difference]: With dead ends: 10993 [2022-03-15 15:34:34,121 INFO L226 Difference]: Without dead ends: 10578 [2022-03-15 15:34:34,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:34,121 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:34,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 207 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:34,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10578 states. [2022-03-15 15:34:34,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10578 to 5179. [2022-03-15 15:34:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.738895326380842) internal successors, (24538), 5178 states have internal predecessors, (24538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:34,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24538 transitions. [2022-03-15 15:34:34,276 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24538 transitions. Word has length 29 [2022-03-15 15:34:34,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:34,276 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24538 transitions. [2022-03-15 15:34:34,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:34,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24538 transitions. [2022-03-15 15:34:34,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:34,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:34,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:34,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable925 [2022-03-15 15:34:34,286 INFO L402 AbstractCegarLoop]: === Iteration 927 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:34,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:34,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1574919647, now seen corresponding path program 922 times [2022-03-15 15:34:34,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:34,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052164108] [2022-03-15 15:34:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:34,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:34,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:34,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:34,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:34,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052164108] [2022-03-15 15:34:34,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052164108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:34,398 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:34,398 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:34,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803685672] [2022-03-15 15:34:34,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:34,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:34,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:34,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:34,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:34,399 INFO L87 Difference]: Start difference. First operand 5179 states and 24538 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:34,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:34,577 INFO L93 Difference]: Finished difference Result 10721 states and 48325 transitions. [2022-03-15 15:34:34,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:34,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:34,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:34,614 INFO L225 Difference]: With dead ends: 10721 [2022-03-15 15:34:34,614 INFO L226 Difference]: Without dead ends: 10210 [2022-03-15 15:34:34,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:34,615 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 150 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:34,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 258 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:34,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10210 states. [2022-03-15 15:34:34,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10210 to 5131. [2022-03-15 15:34:34,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.7442495126705655) internal successors, (24338), 5130 states have internal predecessors, (24338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:34,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24338 transitions. [2022-03-15 15:34:34,773 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24338 transitions. Word has length 29 [2022-03-15 15:34:34,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:34,773 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24338 transitions. [2022-03-15 15:34:34,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:34,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24338 transitions. [2022-03-15 15:34:34,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:34,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:34,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:34,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable926 [2022-03-15 15:34:34,783 INFO L402 AbstractCegarLoop]: === Iteration 928 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:34,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:34,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1332737539, now seen corresponding path program 923 times [2022-03-15 15:34:34,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:34,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261075735] [2022-03-15 15:34:34,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:34,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:34,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:34,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261075735] [2022-03-15 15:34:34,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261075735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:34,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:34,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:34,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099339928] [2022-03-15 15:34:34,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:34,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:34,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:34,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:34,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:34,952 INFO L87 Difference]: Start difference. First operand 5131 states and 24338 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:35,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:35,209 INFO L93 Difference]: Finished difference Result 11079 states and 49703 transitions. [2022-03-15 15:34:35,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:35,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:35,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:35,246 INFO L225 Difference]: With dead ends: 11079 [2022-03-15 15:34:35,247 INFO L226 Difference]: Without dead ends: 10602 [2022-03-15 15:34:35,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:35,247 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 156 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:35,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 244 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:34:35,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10602 states. [2022-03-15 15:34:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10602 to 5203. [2022-03-15 15:34:35,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.731641676278355) internal successors, (24614), 5202 states have internal predecessors, (24614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:35,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24614 transitions. [2022-03-15 15:34:35,408 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24614 transitions. Word has length 29 [2022-03-15 15:34:35,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:35,408 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24614 transitions. [2022-03-15 15:34:35,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:35,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24614 transitions. [2022-03-15 15:34:35,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:35,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:35,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:35,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable927 [2022-03-15 15:34:35,419 INFO L402 AbstractCegarLoop]: === Iteration 929 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:35,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:35,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1242977889, now seen corresponding path program 924 times [2022-03-15 15:34:35,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:35,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087718022] [2022-03-15 15:34:35,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:35,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:35,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:35,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087718022] [2022-03-15 15:34:35,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087718022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:35,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:35,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:35,600 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92627577] [2022-03-15 15:34:35,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:35,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:35,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:35,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:35,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:35,600 INFO L87 Difference]: Start difference. First operand 5203 states and 24614 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:35,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:35,808 INFO L93 Difference]: Finished difference Result 10745 states and 48401 transitions. [2022-03-15 15:34:35,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:35,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:35,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:35,842 INFO L225 Difference]: With dead ends: 10745 [2022-03-15 15:34:35,842 INFO L226 Difference]: Without dead ends: 10186 [2022-03-15 15:34:35,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:35,843 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 164 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:35,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 189 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:35,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10186 states. [2022-03-15 15:34:35,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10186 to 5107. [2022-03-15 15:34:35,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.749314531923227) internal successors, (24250), 5106 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:35,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24250 transitions. [2022-03-15 15:34:35,988 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24250 transitions. Word has length 29 [2022-03-15 15:34:35,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:35,988 INFO L470 AbstractCegarLoop]: Abstraction has 5107 states and 24250 transitions. [2022-03-15 15:34:35,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:35,988 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24250 transitions. [2022-03-15 15:34:35,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:35,998 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:35,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:35,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable928 [2022-03-15 15:34:35,998 INFO L402 AbstractCegarLoop]: === Iteration 930 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:35,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:35,999 INFO L85 PathProgramCache]: Analyzing trace with hash 164967939, now seen corresponding path program 925 times [2022-03-15 15:34:35,999 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:35,999 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637436537] [2022-03-15 15:34:35,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:35,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:36,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:36,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:36,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637436537] [2022-03-15 15:34:36,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637436537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:36,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:36,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:36,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022318392] [2022-03-15 15:34:36,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:36,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:36,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:36,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:36,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:36,175 INFO L87 Difference]: Start difference. First operand 5107 states and 24250 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:36,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:36,363 INFO L93 Difference]: Finished difference Result 11099 states and 49781 transitions. [2022-03-15 15:34:36,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:36,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:36,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:36,399 INFO L225 Difference]: With dead ends: 11099 [2022-03-15 15:34:36,399 INFO L226 Difference]: Without dead ends: 10684 [2022-03-15 15:34:36,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:36,400 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 172 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:36,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 209 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:36,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2022-03-15 15:34:36,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 5179. [2022-03-15 15:34:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.741212823483971) internal successors, (24550), 5178 states have internal predecessors, (24550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:36,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24550 transitions. [2022-03-15 15:34:36,569 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24550 transitions. Word has length 29 [2022-03-15 15:34:36,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:36,569 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24550 transitions. [2022-03-15 15:34:36,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:36,569 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24550 transitions. [2022-03-15 15:34:36,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:36,581 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:36,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:36,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable929 [2022-03-15 15:34:36,581 INFO L402 AbstractCegarLoop]: === Iteration 931 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:36,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:36,581 INFO L85 PathProgramCache]: Analyzing trace with hash 707157379, now seen corresponding path program 926 times [2022-03-15 15:34:36,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:36,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341813278] [2022-03-15 15:34:36,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:36,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:36,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:36,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:36,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341813278] [2022-03-15 15:34:36,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341813278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:36,733 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:36,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:36,733 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876488849] [2022-03-15 15:34:36,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:36,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:36,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:36,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:36,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:36,734 INFO L87 Difference]: Start difference. First operand 5179 states and 24550 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:36,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:36,961 INFO L93 Difference]: Finished difference Result 11159 states and 49997 transitions. [2022-03-15 15:34:36,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:36,961 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:36,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:36,996 INFO L225 Difference]: With dead ends: 11159 [2022-03-15 15:34:36,996 INFO L226 Difference]: Without dead ends: 10636 [2022-03-15 15:34:36,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:36,997 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 163 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:36,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 211 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:37,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10636 states. [2022-03-15 15:34:37,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10636 to 5131. [2022-03-15 15:34:37,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.746588693957115) internal successors, (24350), 5130 states have internal predecessors, (24350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:37,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24350 transitions. [2022-03-15 15:34:37,149 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24350 transitions. Word has length 29 [2022-03-15 15:34:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:37,149 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24350 transitions. [2022-03-15 15:34:37,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:37,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24350 transitions. [2022-03-15 15:34:37,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:37,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:37,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:37,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable930 [2022-03-15 15:34:37,159 INFO L402 AbstractCegarLoop]: === Iteration 932 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:37,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:37,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1868044703, now seen corresponding path program 927 times [2022-03-15 15:34:37,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:37,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80656276] [2022-03-15 15:34:37,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:37,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:37,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:37,259 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:37,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80656276] [2022-03-15 15:34:37,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80656276] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:37,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:37,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:37,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890229079] [2022-03-15 15:34:37,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:37,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:37,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:37,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:37,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:37,260 INFO L87 Difference]: Start difference. First operand 5131 states and 24350 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:37,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:37,462 INFO L93 Difference]: Finished difference Result 10991 states and 49317 transitions. [2022-03-15 15:34:37,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:37,462 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:37,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:37,503 INFO L225 Difference]: With dead ends: 10991 [2022-03-15 15:34:37,504 INFO L226 Difference]: Without dead ends: 10576 [2022-03-15 15:34:37,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:37,504 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 175 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:37,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 215 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:37,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10576 states. [2022-03-15 15:34:37,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10576 to 5179. [2022-03-15 15:34:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.736577829277714) internal successors, (24526), 5178 states have internal predecessors, (24526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:37,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24526 transitions. [2022-03-15 15:34:37,686 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24526 transitions. Word has length 29 [2022-03-15 15:34:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:37,686 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24526 transitions. [2022-03-15 15:34:37,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:37,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24526 transitions. [2022-03-15 15:34:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:37,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:37,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:37,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable931 [2022-03-15 15:34:37,697 INFO L402 AbstractCegarLoop]: === Iteration 933 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:37,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:37,697 INFO L85 PathProgramCache]: Analyzing trace with hash -173802109, now seen corresponding path program 928 times [2022-03-15 15:34:37,697 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:37,697 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97850179] [2022-03-15 15:34:37,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:37,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:37,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:37,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97850179] [2022-03-15 15:34:37,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97850179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:37,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:37,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:37,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396104098] [2022-03-15 15:34:37,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:37,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:37,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:37,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:37,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:37,862 INFO L87 Difference]: Start difference. First operand 5179 states and 24526 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:38,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:38,043 INFO L93 Difference]: Finished difference Result 10719 states and 48308 transitions. [2022-03-15 15:34:38,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:38,043 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:38,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:38,075 INFO L225 Difference]: With dead ends: 10719 [2022-03-15 15:34:38,075 INFO L226 Difference]: Without dead ends: 10208 [2022-03-15 15:34:38,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:38,075 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 145 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:38,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 230 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:38,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10208 states. [2022-03-15 15:34:38,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10208 to 5131. [2022-03-15 15:34:38,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.741910331384015) internal successors, (24326), 5130 states have internal predecessors, (24326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:38,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24326 transitions. [2022-03-15 15:34:38,220 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24326 transitions. Word has length 29 [2022-03-15 15:34:38,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:38,220 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24326 transitions. [2022-03-15 15:34:38,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:38,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24326 transitions. [2022-03-15 15:34:38,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:38,230 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:38,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:38,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable932 [2022-03-15 15:34:38,231 INFO L402 AbstractCegarLoop]: === Iteration 934 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:38,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:38,231 INFO L85 PathProgramCache]: Analyzing trace with hash -165190397, now seen corresponding path program 929 times [2022-03-15 15:34:38,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:38,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317525438] [2022-03-15 15:34:38,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:38,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:38,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:38,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:38,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317525438] [2022-03-15 15:34:38,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317525438] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:38,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:38,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:38,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242298144] [2022-03-15 15:34:38,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:38,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:38,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:38,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:38,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:38,349 INFO L87 Difference]: Start difference. First operand 5131 states and 24326 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:38,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:38,544 INFO L93 Difference]: Finished difference Result 11075 states and 49681 transitions. [2022-03-15 15:34:38,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:38,544 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:38,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:38,585 INFO L225 Difference]: With dead ends: 11075 [2022-03-15 15:34:38,586 INFO L226 Difference]: Without dead ends: 10600 [2022-03-15 15:34:38,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:38,586 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 163 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:38,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 212 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:38,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10600 states. [2022-03-15 15:34:38,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10600 to 5203. [2022-03-15 15:34:38,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.729334871203383) internal successors, (24602), 5202 states have internal predecessors, (24602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:38,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24602 transitions. [2022-03-15 15:34:38,771 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24602 transitions. Word has length 29 [2022-03-15 15:34:38,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:38,771 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24602 transitions. [2022-03-15 15:34:38,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:38,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24602 transitions. [2022-03-15 15:34:38,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:38,782 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:38,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:38,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable933 [2022-03-15 15:34:38,782 INFO L402 AbstractCegarLoop]: === Iteration 935 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:38,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:38,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1557334943, now seen corresponding path program 930 times [2022-03-15 15:34:38,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:38,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245771046] [2022-03-15 15:34:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:38,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:38,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:38,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:38,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245771046] [2022-03-15 15:34:38,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245771046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:38,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:38,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:38,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593195685] [2022-03-15 15:34:38,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:38,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:38,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:38,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:38,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:38,951 INFO L87 Difference]: Start difference. First operand 5203 states and 24602 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:39,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:39,185 INFO L93 Difference]: Finished difference Result 10743 states and 48384 transitions. [2022-03-15 15:34:39,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:39,185 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:39,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:39,219 INFO L225 Difference]: With dead ends: 10743 [2022-03-15 15:34:39,219 INFO L226 Difference]: Without dead ends: 10184 [2022-03-15 15:34:39,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:39,219 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 153 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:39,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 215 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:39,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10184 states. [2022-03-15 15:34:39,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10184 to 5107. [2022-03-15 15:34:39,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.746964355660007) internal successors, (24238), 5106 states have internal predecessors, (24238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:39,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24238 transitions. [2022-03-15 15:34:39,379 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24238 transitions. Word has length 29 [2022-03-15 15:34:39,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:39,379 INFO L470 AbstractCegarLoop]: Abstraction has 5107 states and 24238 transitions. [2022-03-15 15:34:39,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:39,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24238 transitions. [2022-03-15 15:34:39,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:39,390 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:39,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:39,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable934 [2022-03-15 15:34:39,390 INFO L402 AbstractCegarLoop]: === Iteration 936 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:39,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:39,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1020225637, now seen corresponding path program 931 times [2022-03-15 15:34:39,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:39,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975502665] [2022-03-15 15:34:39,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:39,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:39,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:39,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975502665] [2022-03-15 15:34:39,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975502665] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:39,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:39,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:39,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291848287] [2022-03-15 15:34:39,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:39,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:39,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:39,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:39,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:39,559 INFO L87 Difference]: Start difference. First operand 5107 states and 24238 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:39,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:39,768 INFO L93 Difference]: Finished difference Result 11351 states and 50915 transitions. [2022-03-15 15:34:39,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:39,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:39,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:39,804 INFO L225 Difference]: With dead ends: 11351 [2022-03-15 15:34:39,804 INFO L226 Difference]: Without dead ends: 10874 [2022-03-15 15:34:39,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:39,805 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 170 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:39,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 203 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:39,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10874 states. [2022-03-15 15:34:39,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10874 to 5221. [2022-03-15 15:34:39,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.7362068965517246) internal successors, (24723), 5220 states have internal predecessors, (24723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:39,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24723 transitions. [2022-03-15 15:34:39,974 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24723 transitions. Word has length 29 [2022-03-15 15:34:39,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:39,974 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24723 transitions. [2022-03-15 15:34:39,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:39,974 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24723 transitions. [2022-03-15 15:34:39,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:39,985 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:39,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:39,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable935 [2022-03-15 15:34:39,986 INFO L402 AbstractCegarLoop]: === Iteration 937 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:39,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:39,986 INFO L85 PathProgramCache]: Analyzing trace with hash -371918909, now seen corresponding path program 932 times [2022-03-15 15:34:39,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:39,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414370160] [2022-03-15 15:34:39,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:39,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:40,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:40,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414370160] [2022-03-15 15:34:40,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414370160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:40,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:40,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:40,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570508841] [2022-03-15 15:34:40,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:40,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:40,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:40,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:40,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:40,159 INFO L87 Difference]: Start difference. First operand 5221 states and 24723 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:40,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:40,357 INFO L93 Difference]: Finished difference Result 11349 states and 50832 transitions. [2022-03-15 15:34:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:40,357 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:40,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:40,391 INFO L225 Difference]: With dead ends: 11349 [2022-03-15 15:34:40,392 INFO L226 Difference]: Without dead ends: 10796 [2022-03-15 15:34:40,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:40,392 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 161 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:40,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 213 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:40,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10796 states. [2022-03-15 15:34:40,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10796 to 5143. [2022-03-15 15:34:40,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.744068455853753) internal successors, (24394), 5142 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:40,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24394 transitions. [2022-03-15 15:34:40,553 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24394 transitions. Word has length 29 [2022-03-15 15:34:40,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:40,554 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24394 transitions. [2022-03-15 15:34:40,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:40,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24394 transitions. [2022-03-15 15:34:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:40,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:40,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:40,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable936 [2022-03-15 15:34:40,564 INFO L402 AbstractCegarLoop]: === Iteration 938 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:40,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:40,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1095854013, now seen corresponding path program 933 times [2022-03-15 15:34:40,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:40,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769167177] [2022-03-15 15:34:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:40,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:40,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:40,712 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:40,712 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769167177] [2022-03-15 15:34:40,712 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769167177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:40,712 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:40,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:40,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761935672] [2022-03-15 15:34:40,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:40,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:40,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:40,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:40,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:40,713 INFO L87 Difference]: Start difference. First operand 5143 states and 24394 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:40,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:40,920 INFO L93 Difference]: Finished difference Result 11175 states and 50147 transitions. [2022-03-15 15:34:40,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:40,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:40,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:40,956 INFO L225 Difference]: With dead ends: 11175 [2022-03-15 15:34:40,956 INFO L226 Difference]: Without dead ends: 10698 [2022-03-15 15:34:40,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:40,956 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 164 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:40,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 210 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:40,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10698 states. [2022-03-15 15:34:41,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10698 to 5215. [2022-03-15 15:34:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.731492136555428) internal successors, (24670), 5214 states have internal predecessors, (24670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:41,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24670 transitions. [2022-03-15 15:34:41,122 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24670 transitions. Word has length 29 [2022-03-15 15:34:41,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:41,123 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24670 transitions. [2022-03-15 15:34:41,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:41,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24670 transitions. [2022-03-15 15:34:41,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:41,133 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:41,133 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:41,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable937 [2022-03-15 15:34:41,133 INFO L402 AbstractCegarLoop]: === Iteration 939 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:41,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:41,133 INFO L85 PathProgramCache]: Analyzing trace with hash 111126723, now seen corresponding path program 934 times [2022-03-15 15:34:41,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:41,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836043482] [2022-03-15 15:34:41,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:41,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:41,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:41,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836043482] [2022-03-15 15:34:41,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836043482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:41,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:41,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:41,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474618046] [2022-03-15 15:34:41,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:41,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:41,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:41,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:41,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:41,282 INFO L87 Difference]: Start difference. First operand 5215 states and 24670 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:41,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:41,501 INFO L93 Difference]: Finished difference Result 10841 states and 48845 transitions. [2022-03-15 15:34:41,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:41,502 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:41,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:41,536 INFO L225 Difference]: With dead ends: 10841 [2022-03-15 15:34:41,536 INFO L226 Difference]: Without dead ends: 10306 [2022-03-15 15:34:41,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:41,536 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 146 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:41,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 239 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:41,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2022-03-15 15:34:41,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 5143. [2022-03-15 15:34:41,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.73706728899261) internal successors, (24358), 5142 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:41,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24358 transitions. [2022-03-15 15:34:41,701 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24358 transitions. Word has length 29 [2022-03-15 15:34:41,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:41,701 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24358 transitions. [2022-03-15 15:34:41,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:41,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24358 transitions. [2022-03-15 15:34:41,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:41,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:41,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:41,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable938 [2022-03-15 15:34:41,712 INFO L402 AbstractCegarLoop]: === Iteration 940 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:41,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:41,712 INFO L85 PathProgramCache]: Analyzing trace with hash -731596639, now seen corresponding path program 935 times [2022-03-15 15:34:41,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:41,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779482900] [2022-03-15 15:34:41,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:41,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:41,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:41,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:41,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779482900] [2022-03-15 15:34:41,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779482900] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:41,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:41,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:41,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45064561] [2022-03-15 15:34:41,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:41,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:41,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:41,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:41,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:41,864 INFO L87 Difference]: Start difference. First operand 5143 states and 24358 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:42,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:42,127 INFO L93 Difference]: Finished difference Result 11173 states and 50106 transitions. [2022-03-15 15:34:42,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:42,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:42,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:42,167 INFO L225 Difference]: With dead ends: 11173 [2022-03-15 15:34:42,168 INFO L226 Difference]: Without dead ends: 10698 [2022-03-15 15:34:42,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:42,168 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 137 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:42,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 247 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:34:42,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10698 states. [2022-03-15 15:34:42,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10698 to 5215. [2022-03-15 15:34:42,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.724587648638281) internal successors, (24634), 5214 states have internal predecessors, (24634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:42,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24634 transitions. [2022-03-15 15:34:42,350 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24634 transitions. Word has length 29 [2022-03-15 15:34:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:42,350 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24634 transitions. [2022-03-15 15:34:42,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:42,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24634 transitions. [2022-03-15 15:34:42,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:42,362 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:42,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:42,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable939 [2022-03-15 15:34:42,362 INFO L402 AbstractCegarLoop]: === Iteration 941 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:42,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:42,362 INFO L85 PathProgramCache]: Analyzing trace with hash -938404605, now seen corresponding path program 936 times [2022-03-15 15:34:42,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:42,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715943881] [2022-03-15 15:34:42,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:42,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:42,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:42,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:42,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715943881] [2022-03-15 15:34:42,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715943881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:42,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:42,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:42,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638737486] [2022-03-15 15:34:42,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:42,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:42,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:42,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:42,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:42,550 INFO L87 Difference]: Start difference. First operand 5215 states and 24634 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:42,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:42,728 INFO L93 Difference]: Finished difference Result 10841 states and 48809 transitions. [2022-03-15 15:34:42,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:42,728 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:42,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:42,770 INFO L225 Difference]: With dead ends: 10841 [2022-03-15 15:34:42,770 INFO L226 Difference]: Without dead ends: 10258 [2022-03-15 15:34:42,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:42,771 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 143 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:42,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 195 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:42,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10258 states. [2022-03-15 15:34:42,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10258 to 5095. [2022-03-15 15:34:42,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.75068708284256) internal successors, (24200), 5094 states have internal predecessors, (24200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:42,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24200 transitions. [2022-03-15 15:34:42,934 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24200 transitions. Word has length 29 [2022-03-15 15:34:42,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:42,934 INFO L470 AbstractCegarLoop]: Abstraction has 5095 states and 24200 transitions. [2022-03-15 15:34:42,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:42,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24200 transitions. [2022-03-15 15:34:42,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:42,945 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:42,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:42,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable940 [2022-03-15 15:34:42,945 INFO L402 AbstractCegarLoop]: === Iteration 942 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:42,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:42,945 INFO L85 PathProgramCache]: Analyzing trace with hash -727754329, now seen corresponding path program 937 times [2022-03-15 15:34:42,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:42,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694554174] [2022-03-15 15:34:42,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:42,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:43,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:43,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:43,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694554174] [2022-03-15 15:34:43,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694554174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:43,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:43,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:43,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140296980] [2022-03-15 15:34:43,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:43,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:43,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:43,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:43,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:43,065 INFO L87 Difference]: Start difference. First operand 5095 states and 24200 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:43,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:43,240 INFO L93 Difference]: Finished difference Result 12307 states and 55050 transitions. [2022-03-15 15:34:43,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:43,241 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:43,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:43,286 INFO L225 Difference]: With dead ends: 12307 [2022-03-15 15:34:43,286 INFO L226 Difference]: Without dead ends: 11765 [2022-03-15 15:34:43,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:43,287 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 194 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:43,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 193 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:43,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11765 states. [2022-03-15 15:34:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11765 to 5367. [2022-03-15 15:34:43,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5367 states, 5366 states have (on average 4.720275810659709) internal successors, (25329), 5366 states have internal predecessors, (25329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:43,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5367 states to 5367 states and 25329 transitions. [2022-03-15 15:34:43,468 INFO L78 Accepts]: Start accepts. Automaton has 5367 states and 25329 transitions. Word has length 29 [2022-03-15 15:34:43,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:43,468 INFO L470 AbstractCegarLoop]: Abstraction has 5367 states and 25329 transitions. [2022-03-15 15:34:43,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:43,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5367 states and 25329 transitions. [2022-03-15 15:34:43,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:43,479 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:43,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:43,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable941 [2022-03-15 15:34:43,479 INFO L402 AbstractCegarLoop]: === Iteration 943 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:43,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:43,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1523875973, now seen corresponding path program 938 times [2022-03-15 15:34:43,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:43,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496751828] [2022-03-15 15:34:43,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:43,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:43,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:43,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:43,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496751828] [2022-03-15 15:34:43,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496751828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:43,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:43,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:43,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893425838] [2022-03-15 15:34:43,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:43,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:43,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:43,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:43,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:43,616 INFO L87 Difference]: Start difference. First operand 5367 states and 25329 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:43,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:43,805 INFO L93 Difference]: Finished difference Result 12242 states and 54681 transitions. [2022-03-15 15:34:43,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:43,806 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:43,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:43,842 INFO L225 Difference]: With dead ends: 12242 [2022-03-15 15:34:43,843 INFO L226 Difference]: Without dead ends: 11622 [2022-03-15 15:34:43,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:43,843 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 177 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:43,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 206 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:43,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11622 states. [2022-03-15 15:34:43,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11622 to 5224. [2022-03-15 15:34:43,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 5223 states have (on average 4.73654987555045) internal successors, (24739), 5223 states have internal predecessors, (24739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 24739 transitions. [2022-03-15 15:34:44,082 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 24739 transitions. Word has length 29 [2022-03-15 15:34:44,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:44,082 INFO L470 AbstractCegarLoop]: Abstraction has 5224 states and 24739 transitions. [2022-03-15 15:34:44,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:44,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 24739 transitions. [2022-03-15 15:34:44,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:44,093 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:44,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:44,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable942 [2022-03-15 15:34:44,093 INFO L402 AbstractCegarLoop]: === Iteration 944 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:44,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:44,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1451133317, now seen corresponding path program 939 times [2022-03-15 15:34:44,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:44,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412884602] [2022-03-15 15:34:44,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:44,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:44,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:44,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:44,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412884602] [2022-03-15 15:34:44,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412884602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:44,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:44,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:44,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549216301] [2022-03-15 15:34:44,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:44,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:44,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:44,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:44,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:44,199 INFO L87 Difference]: Start difference. First operand 5224 states and 24739 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:44,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:44,367 INFO L93 Difference]: Finished difference Result 12272 states and 54859 transitions. [2022-03-15 15:34:44,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:44,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:44,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:44,406 INFO L225 Difference]: With dead ends: 12272 [2022-03-15 15:34:44,406 INFO L226 Difference]: Without dead ends: 11730 [2022-03-15 15:34:44,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:44,406 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 160 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:44,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 214 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:44,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11730 states. [2022-03-15 15:34:44,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11730 to 5334. [2022-03-15 15:34:44,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5333 states have (on average 4.714794674667167) internal successors, (25144), 5333 states have internal predecessors, (25144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:44,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 25144 transitions. [2022-03-15 15:34:44,579 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 25144 transitions. Word has length 29 [2022-03-15 15:34:44,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:44,579 INFO L470 AbstractCegarLoop]: Abstraction has 5334 states and 25144 transitions. [2022-03-15 15:34:44,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:44,579 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 25144 transitions. [2022-03-15 15:34:44,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:44,590 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:44,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:44,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable943 [2022-03-15 15:34:44,591 INFO L402 AbstractCegarLoop]: === Iteration 945 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:44,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:44,591 INFO L85 PathProgramCache]: Analyzing trace with hash 2006921605, now seen corresponding path program 940 times [2022-03-15 15:34:44,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:44,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104535564] [2022-03-15 15:34:44,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:44,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:44,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:44,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104535564] [2022-03-15 15:34:44,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104535564] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:44,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:44,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:44,696 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717265097] [2022-03-15 15:34:44,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:44,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:44,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:44,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:44,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:44,696 INFO L87 Difference]: Start difference. First operand 5334 states and 25144 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:44,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:44,865 INFO L93 Difference]: Finished difference Result 12205 states and 54486 transitions. [2022-03-15 15:34:44,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:44,865 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:44,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:44,902 INFO L225 Difference]: With dead ends: 12205 [2022-03-15 15:34:44,902 INFO L226 Difference]: Without dead ends: 11620 [2022-03-15 15:34:44,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:44,902 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 203 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:44,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 183 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:44,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11620 states. [2022-03-15 15:34:45,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11620 to 5224. [2022-03-15 15:34:45,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 5223 states have (on average 4.726019529006318) internal successors, (24684), 5223 states have internal predecessors, (24684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:45,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 24684 transitions. [2022-03-15 15:34:45,059 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 24684 transitions. Word has length 29 [2022-03-15 15:34:45,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:45,060 INFO L470 AbstractCegarLoop]: Abstraction has 5224 states and 24684 transitions. [2022-03-15 15:34:45,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:45,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 24684 transitions. [2022-03-15 15:34:45,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:45,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:45,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:45,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable944 [2022-03-15 15:34:45,070 INFO L402 AbstractCegarLoop]: === Iteration 946 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:45,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:45,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1861486365, now seen corresponding path program 941 times [2022-03-15 15:34:45,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:45,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204269318] [2022-03-15 15:34:45,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:45,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:45,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:45,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:45,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204269318] [2022-03-15 15:34:45,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204269318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:45,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:45,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:45,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852923292] [2022-03-15 15:34:45,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:45,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:45,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:45,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:45,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:45,177 INFO L87 Difference]: Start difference. First operand 5224 states and 24684 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:45,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:45,361 INFO L93 Difference]: Finished difference Result 12110 states and 54144 transitions. [2022-03-15 15:34:45,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:45,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:45,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:45,400 INFO L225 Difference]: With dead ends: 12110 [2022-03-15 15:34:45,400 INFO L226 Difference]: Without dead ends: 11633 [2022-03-15 15:34:45,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:45,400 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 173 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:45,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 220 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:45,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11633 states. [2022-03-15 15:34:45,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11633 to 5302. [2022-03-15 15:34:45,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5301 states have (on average 4.711752499528391) internal successors, (24977), 5301 states have internal predecessors, (24977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 24977 transitions. [2022-03-15 15:34:45,568 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 24977 transitions. Word has length 29 [2022-03-15 15:34:45,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:45,568 INFO L470 AbstractCegarLoop]: Abstraction has 5302 states and 24977 transitions. [2022-03-15 15:34:45,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:45,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 24977 transitions. [2022-03-15 15:34:45,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:45,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:45,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:45,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable945 [2022-03-15 15:34:45,580 INFO L402 AbstractCegarLoop]: === Iteration 947 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:45,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:45,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2068294331, now seen corresponding path program 942 times [2022-03-15 15:34:45,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:45,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065031978] [2022-03-15 15:34:45,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:45,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:45,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:45,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065031978] [2022-03-15 15:34:45,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065031978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:45,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:45,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:45,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11481884] [2022-03-15 15:34:45,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:45,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:45,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:45,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:45,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:45,689 INFO L87 Difference]: Start difference. First operand 5302 states and 24977 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:45,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:45,892 INFO L93 Difference]: Finished difference Result 12108 states and 54061 transitions. [2022-03-15 15:34:45,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:45,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:45,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:45,926 INFO L225 Difference]: With dead ends: 12108 [2022-03-15 15:34:45,926 INFO L226 Difference]: Without dead ends: 11468 [2022-03-15 15:34:45,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:45,926 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 178 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:45,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 219 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:45,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11468 states. [2022-03-15 15:34:46,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11468 to 5137. [2022-03-15 15:34:46,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.745132398753894) internal successors, (24371), 5136 states have internal predecessors, (24371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:46,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24371 transitions. [2022-03-15 15:34:46,066 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24371 transitions. Word has length 29 [2022-03-15 15:34:46,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:46,066 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24371 transitions. [2022-03-15 15:34:46,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:46,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24371 transitions. [2022-03-15 15:34:46,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:46,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:46,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:46,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable946 [2022-03-15 15:34:46,078 INFO L402 AbstractCegarLoop]: === Iteration 948 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:46,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:46,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1534200325, now seen corresponding path program 943 times [2022-03-15 15:34:46,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:46,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966682071] [2022-03-15 15:34:46,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:46,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:46,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:46,187 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:46,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966682071] [2022-03-15 15:34:46,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966682071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:46,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:46,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:46,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981061502] [2022-03-15 15:34:46,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:46,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:46,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:46,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:46,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:46,188 INFO L87 Difference]: Start difference. First operand 5137 states and 24371 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:46,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:46,344 INFO L93 Difference]: Finished difference Result 12121 states and 54231 transitions. [2022-03-15 15:34:46,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:46,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:46,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:46,377 INFO L225 Difference]: With dead ends: 12121 [2022-03-15 15:34:46,377 INFO L226 Difference]: Without dead ends: 11579 [2022-03-15 15:34:46,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:46,377 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 170 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:46,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 204 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:46,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11579 states. [2022-03-15 15:34:46,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11579 to 5348. [2022-03-15 15:34:46,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5348 states, 5347 states have (on average 4.717785674209837) internal successors, (25226), 5347 states have internal predecessors, (25226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:46,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5348 states to 5348 states and 25226 transitions. [2022-03-15 15:34:46,523 INFO L78 Accepts]: Start accepts. Automaton has 5348 states and 25226 transitions. Word has length 29 [2022-03-15 15:34:46,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:46,523 INFO L470 AbstractCegarLoop]: Abstraction has 5348 states and 25226 transitions. [2022-03-15 15:34:46,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:46,523 INFO L276 IsEmpty]: Start isEmpty. Operand 5348 states and 25226 transitions. [2022-03-15 15:34:46,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:46,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:46,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:46,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable947 [2022-03-15 15:34:46,533 INFO L402 AbstractCegarLoop]: === Iteration 949 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:46,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:46,533 INFO L85 PathProgramCache]: Analyzing trace with hash -509136669, now seen corresponding path program 944 times [2022-03-15 15:34:46,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:46,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986355903] [2022-03-15 15:34:46,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:46,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:46,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:46,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:46,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986355903] [2022-03-15 15:34:46,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986355903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:46,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:46,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:46,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645861983] [2022-03-15 15:34:46,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:46,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:46,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:46,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:46,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:46,641 INFO L87 Difference]: Start difference. First operand 5348 states and 25226 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:46,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:46,825 INFO L93 Difference]: Finished difference Result 12056 states and 53862 transitions. [2022-03-15 15:34:46,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:46,825 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:46,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:46,859 INFO L225 Difference]: With dead ends: 12056 [2022-03-15 15:34:46,860 INFO L226 Difference]: Without dead ends: 11436 [2022-03-15 15:34:46,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:46,860 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 154 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:46,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 250 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:46,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11436 states. [2022-03-15 15:34:46,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11436 to 5205. [2022-03-15 15:34:46,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 4.734627209838585) internal successors, (24639), 5204 states have internal predecessors, (24639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:47,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 24639 transitions. [2022-03-15 15:34:47,004 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 24639 transitions. Word has length 29 [2022-03-15 15:34:47,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:47,004 INFO L470 AbstractCegarLoop]: Abstraction has 5205 states and 24639 transitions. [2022-03-15 15:34:47,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:47,004 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 24639 transitions. [2022-03-15 15:34:47,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:47,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:47,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:47,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable948 [2022-03-15 15:34:47,014 INFO L402 AbstractCegarLoop]: === Iteration 950 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:47,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:47,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1801517701, now seen corresponding path program 945 times [2022-03-15 15:34:47,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:47,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560421785] [2022-03-15 15:34:47,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:47,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:47,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:47,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:47,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560421785] [2022-03-15 15:34:47,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560421785] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:47,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:47,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:47,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058301815] [2022-03-15 15:34:47,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:47,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:47,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:47,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:47,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:47,124 INFO L87 Difference]: Start difference. First operand 5205 states and 24639 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:47,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:47,293 INFO L93 Difference]: Finished difference Result 11845 states and 53053 transitions. [2022-03-15 15:34:47,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:47,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:47,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:47,328 INFO L225 Difference]: With dead ends: 11845 [2022-03-15 15:34:47,328 INFO L226 Difference]: Without dead ends: 11303 [2022-03-15 15:34:47,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:47,329 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 165 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:47,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 218 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:47,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11303 states. [2022-03-15 15:34:47,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11303 to 5309. [2022-03-15 15:34:47,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5309 states, 5308 states have (on average 4.714958553127355) internal successors, (25027), 5308 states have internal predecessors, (25027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:47,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 25027 transitions. [2022-03-15 15:34:47,471 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 25027 transitions. Word has length 29 [2022-03-15 15:34:47,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:47,471 INFO L470 AbstractCegarLoop]: Abstraction has 5309 states and 25027 transitions. [2022-03-15 15:34:47,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:47,472 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 25027 transitions. [2022-03-15 15:34:47,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:47,481 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:47,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:47,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable949 [2022-03-15 15:34:47,481 INFO L402 AbstractCegarLoop]: === Iteration 951 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:47,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1083949701, now seen corresponding path program 946 times [2022-03-15 15:34:47,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:47,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733432938] [2022-03-15 15:34:47,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:47,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:47,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:47,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:47,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733432938] [2022-03-15 15:34:47,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733432938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:47,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:47,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:47,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833477248] [2022-03-15 15:34:47,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:47,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:47,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:47,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:47,591 INFO L87 Difference]: Start difference. First operand 5309 states and 25027 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:47,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:47,757 INFO L93 Difference]: Finished difference Result 11446 states and 51461 transitions. [2022-03-15 15:34:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:47,757 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:47,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:47,788 INFO L225 Difference]: With dead ends: 11446 [2022-03-15 15:34:47,788 INFO L226 Difference]: Without dead ends: 10879 [2022-03-15 15:34:47,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:47,789 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 146 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:47,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 214 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:47,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10879 states. [2022-03-15 15:34:47,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10879 to 5205. [2022-03-15 15:34:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 4.724634896233667) internal successors, (24587), 5204 states have internal predecessors, (24587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:47,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 24587 transitions. [2022-03-15 15:34:47,925 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 24587 transitions. Word has length 29 [2022-03-15 15:34:47,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:47,925 INFO L470 AbstractCegarLoop]: Abstraction has 5205 states and 24587 transitions. [2022-03-15 15:34:47,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:47,925 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 24587 transitions. [2022-03-15 15:34:47,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:47,935 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:47,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:47,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable950 [2022-03-15 15:34:47,935 INFO L402 AbstractCegarLoop]: === Iteration 952 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:47,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:47,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1511101981, now seen corresponding path program 947 times [2022-03-15 15:34:47,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:47,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927116080] [2022-03-15 15:34:47,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:47,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:48,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:48,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:48,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927116080] [2022-03-15 15:34:48,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927116080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:48,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:48,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:48,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798618979] [2022-03-15 15:34:48,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:48,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:48,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:48,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:48,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:48,096 INFO L87 Difference]: Start difference. First operand 5205 states and 24587 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:48,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:48,312 INFO L93 Difference]: Finished difference Result 11748 states and 52599 transitions. [2022-03-15 15:34:48,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:48,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:48,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:48,347 INFO L225 Difference]: With dead ends: 11748 [2022-03-15 15:34:48,347 INFO L226 Difference]: Without dead ends: 11271 [2022-03-15 15:34:48,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:48,347 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 168 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:48,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 208 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:48,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11271 states. [2022-03-15 15:34:48,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11271 to 5277. [2022-03-15 15:34:48,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 4.712471569370735) internal successors, (24863), 5276 states have internal predecessors, (24863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:48,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 24863 transitions. [2022-03-15 15:34:48,505 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 24863 transitions. Word has length 29 [2022-03-15 15:34:48,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:48,505 INFO L470 AbstractCegarLoop]: Abstraction has 5277 states and 24863 transitions. [2022-03-15 15:34:48,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:48,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 24863 transitions. [2022-03-15 15:34:48,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:48,517 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:48,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:48,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable951 [2022-03-15 15:34:48,517 INFO L402 AbstractCegarLoop]: === Iteration 953 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:48,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:48,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1316165, now seen corresponding path program 948 times [2022-03-15 15:34:48,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:48,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622926732] [2022-03-15 15:34:48,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:48,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:48,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:48,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:48,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622926732] [2022-03-15 15:34:48,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622926732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:48,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:48,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:48,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767080828] [2022-03-15 15:34:48,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:48,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:48,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:48,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:48,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:48,688 INFO L87 Difference]: Start difference. First operand 5277 states and 24863 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:48,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:48,913 INFO L93 Difference]: Finished difference Result 11414 states and 51297 transitions. [2022-03-15 15:34:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:48,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:48,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:48,945 INFO L225 Difference]: With dead ends: 11414 [2022-03-15 15:34:48,945 INFO L226 Difference]: Without dead ends: 10811 [2022-03-15 15:34:48,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:48,945 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 159 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:48,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 228 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10811 states. [2022-03-15 15:34:49,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10811 to 5137. [2022-03-15 15:34:49,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.73851246105919) internal successors, (24337), 5136 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:49,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24337 transitions. [2022-03-15 15:34:49,085 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24337 transitions. Word has length 29 [2022-03-15 15:34:49,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:49,085 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24337 transitions. [2022-03-15 15:34:49,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:49,085 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24337 transitions. [2022-03-15 15:34:49,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:49,094 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:49,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:49,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable952 [2022-03-15 15:34:49,095 INFO L402 AbstractCegarLoop]: === Iteration 954 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:49,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:49,095 INFO L85 PathProgramCache]: Analyzing trace with hash -601781533, now seen corresponding path program 949 times [2022-03-15 15:34:49,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:49,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70949039] [2022-03-15 15:34:49,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:49,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:49,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:49,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:49,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70949039] [2022-03-15 15:34:49,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70949039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:49,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:49,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:49,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391005814] [2022-03-15 15:34:49,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:49,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:49,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:49,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:49,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:49,273 INFO L87 Difference]: Start difference. First operand 5137 states and 24337 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:49,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:49,482 INFO L93 Difference]: Finished difference Result 12068 states and 54008 transitions. [2022-03-15 15:34:49,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:49,483 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:49,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:49,517 INFO L225 Difference]: With dead ends: 12068 [2022-03-15 15:34:49,517 INFO L226 Difference]: Without dead ends: 11526 [2022-03-15 15:34:49,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:49,517 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 172 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:49,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 211 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:49,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11526 states. [2022-03-15 15:34:49,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11526 to 5299. [2022-03-15 15:34:49,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 4.7214043035107585) internal successors, (25014), 5298 states have internal predecessors, (25014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:49,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 25014 transitions. [2022-03-15 15:34:49,662 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 25014 transitions. Word has length 29 [2022-03-15 15:34:49,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:49,662 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 25014 transitions. [2022-03-15 15:34:49,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:49,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 25014 transitions. [2022-03-15 15:34:49,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:49,672 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:49,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:49,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable953 [2022-03-15 15:34:49,672 INFO L402 AbstractCegarLoop]: === Iteration 955 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:49,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:49,672 INFO L85 PathProgramCache]: Analyzing trace with hash -45993245, now seen corresponding path program 950 times [2022-03-15 15:34:49,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:49,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045767489] [2022-03-15 15:34:49,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:49,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:49,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:49,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045767489] [2022-03-15 15:34:49,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045767489] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:49,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:49,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:49,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901074635] [2022-03-15 15:34:49,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:49,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:49,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:49,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:49,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:49,847 INFO L87 Difference]: Start difference. First operand 5299 states and 25014 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:50,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:50,045 INFO L93 Difference]: Finished difference Result 12001 states and 53635 transitions. [2022-03-15 15:34:50,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:50,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:50,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:50,082 INFO L225 Difference]: With dead ends: 12001 [2022-03-15 15:34:50,082 INFO L226 Difference]: Without dead ends: 11416 [2022-03-15 15:34:50,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:50,082 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 171 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:50,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 210 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:50,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2022-03-15 15:34:50,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 5189. [2022-03-15 15:34:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.733423284502699) internal successors, (24557), 5188 states have internal predecessors, (24557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:50,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24557 transitions. [2022-03-15 15:34:50,220 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24557 transitions. Word has length 29 [2022-03-15 15:34:50,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:50,220 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24557 transitions. [2022-03-15 15:34:50,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:50,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24557 transitions. [2022-03-15 15:34:50,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:50,273 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:50,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:50,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable954 [2022-03-15 15:34:50,273 INFO L402 AbstractCegarLoop]: === Iteration 956 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:50,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:50,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1775741243, now seen corresponding path program 951 times [2022-03-15 15:34:50,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:50,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809208107] [2022-03-15 15:34:50,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:50,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:50,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:50,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:50,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809208107] [2022-03-15 15:34:50,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809208107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:50,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:50,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:50,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711135738] [2022-03-15 15:34:50,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:50,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:50,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:50,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:50,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:50,400 INFO L87 Difference]: Start difference. First operand 5189 states and 24557 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:50,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:50,578 INFO L93 Difference]: Finished difference Result 11827 states and 52966 transitions. [2022-03-15 15:34:50,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:50,578 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:50,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:50,612 INFO L225 Difference]: With dead ends: 11827 [2022-03-15 15:34:50,613 INFO L226 Difference]: Without dead ends: 11285 [2022-03-15 15:34:50,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:50,613 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 164 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:50,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 221 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:50,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11285 states. [2022-03-15 15:34:50,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11285 to 5293. [2022-03-15 15:34:50,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 4.713718820861678) internal successors, (24945), 5292 states have internal predecessors, (24945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:50,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 24945 transitions. [2022-03-15 15:34:50,757 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 24945 transitions. Word has length 29 [2022-03-15 15:34:50,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:50,757 INFO L470 AbstractCegarLoop]: Abstraction has 5293 states and 24945 transitions. [2022-03-15 15:34:50,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:50,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 24945 transitions. [2022-03-15 15:34:50,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:50,767 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:50,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:50,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable955 [2022-03-15 15:34:50,767 INFO L402 AbstractCegarLoop]: === Iteration 957 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:50,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:50,767 INFO L85 PathProgramCache]: Analyzing trace with hash -949062941, now seen corresponding path program 952 times [2022-03-15 15:34:50,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:50,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50984092] [2022-03-15 15:34:50,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:50,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:50,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:50,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:50,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50984092] [2022-03-15 15:34:50,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50984092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:50,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:50,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:50,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122948233] [2022-03-15 15:34:50,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:50,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:50,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:50,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:50,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:50,924 INFO L87 Difference]: Start difference. First operand 5293 states and 24945 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:51,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:51,123 INFO L93 Difference]: Finished difference Result 11428 states and 51374 transitions. [2022-03-15 15:34:51,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:51,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:51,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:51,157 INFO L225 Difference]: With dead ends: 11428 [2022-03-15 15:34:51,157 INFO L226 Difference]: Without dead ends: 10861 [2022-03-15 15:34:51,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:51,158 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 153 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:51,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 202 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:51,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2022-03-15 15:34:51,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 5189. [2022-03-15 15:34:51,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.723400154202005) internal successors, (24505), 5188 states have internal predecessors, (24505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:51,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24505 transitions. [2022-03-15 15:34:51,301 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24505 transitions. Word has length 29 [2022-03-15 15:34:51,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:51,302 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24505 transitions. [2022-03-15 15:34:51,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:51,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24505 transitions. [2022-03-15 15:34:51,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:51,311 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:51,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:51,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable956 [2022-03-15 15:34:51,311 INFO L402 AbstractCegarLoop]: === Iteration 958 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:51,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:51,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1860893411, now seen corresponding path program 953 times [2022-03-15 15:34:51,312 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:51,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465912675] [2022-03-15 15:34:51,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:51,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:51,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:51,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:51,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465912675] [2022-03-15 15:34:51,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465912675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:51,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:51,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:51,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373152884] [2022-03-15 15:34:51,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:51,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:51,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:51,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:51,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:51,446 INFO L87 Difference]: Start difference. First operand 5189 states and 24505 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:51,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:51,663 INFO L93 Difference]: Finished difference Result 11728 states and 52507 transitions. [2022-03-15 15:34:51,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:51,663 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:51,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:51,695 INFO L225 Difference]: With dead ends: 11728 [2022-03-15 15:34:51,695 INFO L226 Difference]: Without dead ends: 11253 [2022-03-15 15:34:51,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:51,696 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:51,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 242 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:51,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11253 states. [2022-03-15 15:34:51,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11253 to 5261. [2022-03-15 15:34:51,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.711216730038023) internal successors, (24781), 5260 states have internal predecessors, (24781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:51,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24781 transitions. [2022-03-15 15:34:51,831 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24781 transitions. Word has length 29 [2022-03-15 15:34:51,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:51,831 INFO L470 AbstractCegarLoop]: Abstraction has 5261 states and 24781 transitions. [2022-03-15 15:34:51,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:51,832 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24781 transitions. [2022-03-15 15:34:51,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:51,841 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:51,841 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:51,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable957 [2022-03-15 15:34:51,841 INFO L402 AbstractCegarLoop]: === Iteration 959 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:51,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:51,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1654085445, now seen corresponding path program 954 times [2022-03-15 15:34:51,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:51,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731109330] [2022-03-15 15:34:51,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:51,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:51,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:51,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:51,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731109330] [2022-03-15 15:34:51,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731109330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:51,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:51,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:51,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172409693] [2022-03-15 15:34:51,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:51,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:51,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:51,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:51,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:51,983 INFO L87 Difference]: Start difference. First operand 5261 states and 24781 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:52,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:52,222 INFO L93 Difference]: Finished difference Result 11396 states and 51210 transitions. [2022-03-15 15:34:52,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:52,222 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:52,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:52,259 INFO L225 Difference]: With dead ends: 11396 [2022-03-15 15:34:52,259 INFO L226 Difference]: Without dead ends: 10809 [2022-03-15 15:34:52,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:52,259 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 152 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:52,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 238 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:52,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2022-03-15 15:34:52,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 5137. [2022-03-15 15:34:52,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.73345015576324) internal successors, (24311), 5136 states have internal predecessors, (24311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:52,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24311 transitions. [2022-03-15 15:34:52,428 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24311 transitions. Word has length 29 [2022-03-15 15:34:52,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:52,428 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24311 transitions. [2022-03-15 15:34:52,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:52,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24311 transitions. [2022-03-15 15:34:52,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:52,439 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:52,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:52,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable958 [2022-03-15 15:34:52,439 INFO L402 AbstractCegarLoop]: === Iteration 960 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:52,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:52,439 INFO L85 PathProgramCache]: Analyzing trace with hash 370614977, now seen corresponding path program 955 times [2022-03-15 15:34:52,439 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:52,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072363450] [2022-03-15 15:34:52,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:52,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:52,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:52,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:52,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072363450] [2022-03-15 15:34:52,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072363450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:52,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:52,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:52,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899629452] [2022-03-15 15:34:52,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:52,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:52,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:52,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:52,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:52,600 INFO L87 Difference]: Start difference. First operand 5137 states and 24311 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:52,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:52,768 INFO L93 Difference]: Finished difference Result 11793 states and 52840 transitions. [2022-03-15 15:34:52,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:52,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:52,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:52,805 INFO L225 Difference]: With dead ends: 11793 [2022-03-15 15:34:52,805 INFO L226 Difference]: Without dead ends: 11316 [2022-03-15 15:34:52,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:52,805 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 172 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:52,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 223 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:52,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11316 states. [2022-03-15 15:34:52,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11316 to 5251. [2022-03-15 15:34:52,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.723047619047619) internal successors, (24796), 5250 states have internal predecessors, (24796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:52,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24796 transitions. [2022-03-15 15:34:52,967 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24796 transitions. Word has length 29 [2022-03-15 15:34:52,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:52,968 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24796 transitions. [2022-03-15 15:34:52,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:52,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24796 transitions. [2022-03-15 15:34:52,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:52,978 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:52,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:52,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable959 [2022-03-15 15:34:52,978 INFO L402 AbstractCegarLoop]: === Iteration 961 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:52,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:52,978 INFO L85 PathProgramCache]: Analyzing trace with hash 163807011, now seen corresponding path program 956 times [2022-03-15 15:34:52,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:52,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563578505] [2022-03-15 15:34:52,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:52,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:53,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:53,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:53,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563578505] [2022-03-15 15:34:53,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563578505] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:53,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:53,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:53,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339754596] [2022-03-15 15:34:53,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:53,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:53,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:53,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:53,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:53,102 INFO L87 Difference]: Start difference. First operand 5251 states and 24796 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:53,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:53,294 INFO L93 Difference]: Finished difference Result 11791 states and 52757 transitions. [2022-03-15 15:34:53,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:53,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:53,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:53,332 INFO L225 Difference]: With dead ends: 11791 [2022-03-15 15:34:53,332 INFO L226 Difference]: Without dead ends: 11238 [2022-03-15 15:34:53,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:53,332 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 143 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:53,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 254 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:53,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11238 states. [2022-03-15 15:34:53,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11238 to 5173. [2022-03-15 15:34:53,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.730665119876257) internal successors, (24467), 5172 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:53,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24467 transitions. [2022-03-15 15:34:53,495 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24467 transitions. Word has length 29 [2022-03-15 15:34:53,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:53,495 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24467 transitions. [2022-03-15 15:34:53,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:53,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24467 transitions. [2022-03-15 15:34:53,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:53,505 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:53,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:53,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable960 [2022-03-15 15:34:53,506 INFO L402 AbstractCegarLoop]: === Iteration 962 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:53,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:53,506 INFO L85 PathProgramCache]: Analyzing trace with hash -803344733, now seen corresponding path program 957 times [2022-03-15 15:34:53,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:53,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094211906] [2022-03-15 15:34:53,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:53,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:53,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:53,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:53,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094211906] [2022-03-15 15:34:53,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094211906] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:53,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:53,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:53,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439219312] [2022-03-15 15:34:53,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:53,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:53,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:53,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:53,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:53,690 INFO L87 Difference]: Start difference. First operand 5173 states and 24467 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:53,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:53,954 INFO L93 Difference]: Finished difference Result 11617 states and 52072 transitions. [2022-03-15 15:34:53,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:53,954 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:53,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:53,986 INFO L225 Difference]: With dead ends: 11617 [2022-03-15 15:34:53,987 INFO L226 Difference]: Without dead ends: 11140 [2022-03-15 15:34:53,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:53,987 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 147 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:53,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 256 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:54,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11140 states. [2022-03-15 15:34:54,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11140 to 5245. [2022-03-15 15:34:54,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.71834477498093) internal successors, (24743), 5244 states have internal predecessors, (24743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24743 transitions. [2022-03-15 15:34:54,132 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24743 transitions. Word has length 29 [2022-03-15 15:34:54,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:54,132 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 24743 transitions. [2022-03-15 15:34:54,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:54,132 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24743 transitions. [2022-03-15 15:34:54,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:54,142 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:54,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:54,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable961 [2022-03-15 15:34:54,142 INFO L402 AbstractCegarLoop]: === Iteration 963 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:54,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:54,142 INFO L85 PathProgramCache]: Analyzing trace with hash -2041647581, now seen corresponding path program 958 times [2022-03-15 15:34:54,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:54,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319198089] [2022-03-15 15:34:54,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:54,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:54,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:54,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:54,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319198089] [2022-03-15 15:34:54,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319198089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:54,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:54,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:54,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863653195] [2022-03-15 15:34:54,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:54,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:54,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:54,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:54,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:54,262 INFO L87 Difference]: Start difference. First operand 5245 states and 24743 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:54,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:54,421 INFO L93 Difference]: Finished difference Result 11283 states and 50770 transitions. [2022-03-15 15:34:54,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:54,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:54,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:54,455 INFO L225 Difference]: With dead ends: 11283 [2022-03-15 15:34:54,455 INFO L226 Difference]: Without dead ends: 10748 [2022-03-15 15:34:54,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:54,455 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:54,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 205 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:54,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10748 states. [2022-03-15 15:34:54,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10748 to 5173. [2022-03-15 15:34:54,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.723704563031709) internal successors, (24431), 5172 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:54,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24431 transitions. [2022-03-15 15:34:54,600 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24431 transitions. Word has length 29 [2022-03-15 15:34:54,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:54,600 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24431 transitions. [2022-03-15 15:34:54,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:54,600 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24431 transitions. [2022-03-15 15:34:54,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:54,609 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:54,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:54,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable962 [2022-03-15 15:34:54,609 INFO L402 AbstractCegarLoop]: === Iteration 964 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:54,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:54,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1898699269, now seen corresponding path program 959 times [2022-03-15 15:34:54,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:54,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131905480] [2022-03-15 15:34:54,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:54,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:54,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:54,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131905480] [2022-03-15 15:34:54,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131905480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:54,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:54,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:54,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921579116] [2022-03-15 15:34:54,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:54,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:54,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:54,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:54,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:54,776 INFO L87 Difference]: Start difference. First operand 5173 states and 24431 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:54,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:54,980 INFO L93 Difference]: Finished difference Result 11615 states and 52031 transitions. [2022-03-15 15:34:54,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:54,980 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:54,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:55,014 INFO L225 Difference]: With dead ends: 11615 [2022-03-15 15:34:55,014 INFO L226 Difference]: Without dead ends: 11140 [2022-03-15 15:34:55,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:55,014 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 179 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:55,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 187 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:55,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11140 states. [2022-03-15 15:34:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11140 to 5245. [2022-03-15 15:34:55,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.711479786422578) internal successors, (24707), 5244 states have internal predecessors, (24707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:55,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24707 transitions. [2022-03-15 15:34:55,168 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24707 transitions. Word has length 29 [2022-03-15 15:34:55,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:55,168 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 24707 transitions. [2022-03-15 15:34:55,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:55,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24707 transitions. [2022-03-15 15:34:55,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:55,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:55,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:55,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable963 [2022-03-15 15:34:55,179 INFO L402 AbstractCegarLoop]: === Iteration 965 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:55,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:55,179 INFO L85 PathProgramCache]: Analyzing trace with hash -217380381, now seen corresponding path program 960 times [2022-03-15 15:34:55,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:55,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032730230] [2022-03-15 15:34:55,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:55,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:55,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:55,356 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032730230] [2022-03-15 15:34:55,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032730230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:55,356 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:55,356 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:55,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967493829] [2022-03-15 15:34:55,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:55,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:55,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:55,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:55,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:55,356 INFO L87 Difference]: Start difference. First operand 5245 states and 24707 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:55,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:55,559 INFO L93 Difference]: Finished difference Result 11283 states and 50734 transitions. [2022-03-15 15:34:55,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:55,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:55,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:55,592 INFO L225 Difference]: With dead ends: 11283 [2022-03-15 15:34:55,592 INFO L226 Difference]: Without dead ends: 10652 [2022-03-15 15:34:55,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:55,593 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 158 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:55,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 206 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:55,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10652 states. [2022-03-15 15:34:55,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10652 to 5077. [2022-03-15 15:34:55,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5077 states, 5076 states have (on average 4.7563041765169425) internal successors, (24143), 5076 states have internal predecessors, (24143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:55,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5077 states to 5077 states and 24143 transitions. [2022-03-15 15:34:55,738 INFO L78 Accepts]: Start accepts. Automaton has 5077 states and 24143 transitions. Word has length 29 [2022-03-15 15:34:55,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:55,738 INFO L470 AbstractCegarLoop]: Abstraction has 5077 states and 24143 transitions. [2022-03-15 15:34:55,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:55,738 INFO L276 IsEmpty]: Start isEmpty. Operand 5077 states and 24143 transitions. [2022-03-15 15:34:55,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:55,748 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:55,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:55,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable964 [2022-03-15 15:34:55,748 INFO L402 AbstractCegarLoop]: === Iteration 966 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:55,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:55,749 INFO L85 PathProgramCache]: Analyzing trace with hash 2096210339, now seen corresponding path program 961 times [2022-03-15 15:34:55,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:55,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797151962] [2022-03-15 15:34:55,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:55,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:55,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:55,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:55,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797151962] [2022-03-15 15:34:55,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797151962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:55,877 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:55,877 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:55,877 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431215628] [2022-03-15 15:34:55,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:55,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:55,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:55,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:55,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:55,877 INFO L87 Difference]: Start difference. First operand 5077 states and 24143 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:56,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:56,056 INFO L93 Difference]: Finished difference Result 11367 states and 50697 transitions. [2022-03-15 15:34:56,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:56,057 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:56,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:56,091 INFO L225 Difference]: With dead ends: 11367 [2022-03-15 15:34:56,091 INFO L226 Difference]: Without dead ends: 10952 [2022-03-15 15:34:56,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:56,091 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 159 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:56,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 229 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:56,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10952 states. [2022-03-15 15:34:56,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10952 to 5249. [2022-03-15 15:34:56,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.749047256097561) internal successors, (24923), 5248 states have internal predecessors, (24923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24923 transitions. [2022-03-15 15:34:56,244 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24923 transitions. Word has length 29 [2022-03-15 15:34:56,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:56,244 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 24923 transitions. [2022-03-15 15:34:56,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:56,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24923 transitions. [2022-03-15 15:34:56,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:56,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:56,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:56,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable965 [2022-03-15 15:34:56,255 INFO L402 AbstractCegarLoop]: === Iteration 967 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:56,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:56,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1111006309, now seen corresponding path program 962 times [2022-03-15 15:34:56,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:56,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415423418] [2022-03-15 15:34:56,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:56,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:56,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:56,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:56,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415423418] [2022-03-15 15:34:56,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415423418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:56,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:56,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:56,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536966267] [2022-03-15 15:34:56,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:56,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:56,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:56,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:56,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:56,370 INFO L87 Difference]: Start difference. First operand 5249 states and 24923 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:56,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:56,534 INFO L93 Difference]: Finished difference Result 11494 states and 51176 transitions. [2022-03-15 15:34:56,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:56,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:56,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:56,569 INFO L225 Difference]: With dead ends: 11494 [2022-03-15 15:34:56,569 INFO L226 Difference]: Without dead ends: 10872 [2022-03-15 15:34:56,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:56,569 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 186 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:56,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 199 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:56,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10872 states. [2022-03-15 15:34:56,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10872 to 5169. [2022-03-15 15:34:56,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.752902476780186) internal successors, (24563), 5168 states have internal predecessors, (24563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:56,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24563 transitions. [2022-03-15 15:34:56,723 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24563 transitions. Word has length 29 [2022-03-15 15:34:56,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:56,723 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24563 transitions. [2022-03-15 15:34:56,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:56,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24563 transitions. [2022-03-15 15:34:56,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:56,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:56,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:56,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable966 [2022-03-15 15:34:56,734 INFO L402 AbstractCegarLoop]: === Iteration 968 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:56,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:56,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1876408483, now seen corresponding path program 963 times [2022-03-15 15:34:56,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:56,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272636191] [2022-03-15 15:34:56,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:56,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:56,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:56,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:56,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272636191] [2022-03-15 15:34:56,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272636191] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:56,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:56,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:56,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538126889] [2022-03-15 15:34:56,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:56,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:56,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:56,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:56,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:56,855 INFO L87 Difference]: Start difference. First operand 5169 states and 24563 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:57,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:57,028 INFO L93 Difference]: Finished difference Result 11270 states and 50255 transitions. [2022-03-15 15:34:57,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:57,028 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:57,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:57,062 INFO L225 Difference]: With dead ends: 11270 [2022-03-15 15:34:57,062 INFO L226 Difference]: Without dead ends: 10855 [2022-03-15 15:34:57,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:57,062 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 157 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:57,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 235 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:57,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10855 states. [2022-03-15 15:34:57,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10855 to 5217. [2022-03-15 15:34:57,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.742906441717792) internal successors, (24739), 5216 states have internal predecessors, (24739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24739 transitions. [2022-03-15 15:34:57,290 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24739 transitions. Word has length 29 [2022-03-15 15:34:57,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:57,290 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24739 transitions. [2022-03-15 15:34:57,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:57,290 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24739 transitions. [2022-03-15 15:34:57,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:57,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:57,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:57,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable967 [2022-03-15 15:34:57,301 INFO L402 AbstractCegarLoop]: === Iteration 969 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:57,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:57,302 INFO L85 PathProgramCache]: Analyzing trace with hash 2105695493, now seen corresponding path program 964 times [2022-03-15 15:34:57,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:57,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740795283] [2022-03-15 15:34:57,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:57,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:57,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:57,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:57,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740795283] [2022-03-15 15:34:57,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740795283] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:57,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:57,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:57,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528637926] [2022-03-15 15:34:57,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:57,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:57,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:57,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:57,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:57,436 INFO L87 Difference]: Start difference. First operand 5217 states and 24739 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:57,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:57,665 INFO L93 Difference]: Finished difference Result 11332 states and 50476 transitions. [2022-03-15 15:34:57,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:57,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:57,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:57,699 INFO L225 Difference]: With dead ends: 11332 [2022-03-15 15:34:57,699 INFO L226 Difference]: Without dead ends: 10807 [2022-03-15 15:34:57,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:57,700 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 162 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:57,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 240 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:57,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10807 states. [2022-03-15 15:34:57,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10807 to 5169. [2022-03-15 15:34:57,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.748258513931889) internal successors, (24539), 5168 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:57,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24539 transitions. [2022-03-15 15:34:57,847 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24539 transitions. Word has length 29 [2022-03-15 15:34:57,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:57,847 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24539 transitions. [2022-03-15 15:34:57,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:57,848 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24539 transitions. [2022-03-15 15:34:57,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:57,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:57,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:57,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable968 [2022-03-15 15:34:57,858 INFO L402 AbstractCegarLoop]: === Iteration 970 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:57,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:57,858 INFO L85 PathProgramCache]: Analyzing trace with hash -454770873, now seen corresponding path program 965 times [2022-03-15 15:34:57,858 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:57,858 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249558451] [2022-03-15 15:34:57,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:57,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:57,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:57,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:57,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249558451] [2022-03-15 15:34:57,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249558451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:57,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:57,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:57,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911409080] [2022-03-15 15:34:57,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:57,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:57,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:57,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:57,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:57,998 INFO L87 Difference]: Start difference. First operand 5169 states and 24539 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:58,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:58,194 INFO L93 Difference]: Finished difference Result 11619 states and 51691 transitions. [2022-03-15 15:34:58,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:58,194 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:58,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:58,228 INFO L225 Difference]: With dead ends: 11619 [2022-03-15 15:34:58,229 INFO L226 Difference]: Without dead ends: 11077 [2022-03-15 15:34:58,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:58,229 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 187 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:58,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 223 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:58,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11077 states. [2022-03-15 15:34:58,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11077 to 5312. [2022-03-15 15:34:58,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5312 states, 5311 states have (on average 4.718132178497458) internal successors, (25058), 5311 states have internal predecessors, (25058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:58,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5312 states to 5312 states and 25058 transitions. [2022-03-15 15:34:58,390 INFO L78 Accepts]: Start accepts. Automaton has 5312 states and 25058 transitions. Word has length 29 [2022-03-15 15:34:58,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:58,390 INFO L470 AbstractCegarLoop]: Abstraction has 5312 states and 25058 transitions. [2022-03-15 15:34:58,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:58,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5312 states and 25058 transitions. [2022-03-15 15:34:58,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:58,400 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:58,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:58,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable969 [2022-03-15 15:34:58,401 INFO L402 AbstractCegarLoop]: === Iteration 971 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:58,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:58,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1796859429, now seen corresponding path program 966 times [2022-03-15 15:34:58,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:58,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931336135] [2022-03-15 15:34:58,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:58,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:58,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:58,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:58,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931336135] [2022-03-15 15:34:58,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931336135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:58,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:58,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:58,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912489264] [2022-03-15 15:34:58,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:58,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:58,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:58,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:58,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:58,562 INFO L87 Difference]: Start difference. First operand 5312 states and 25058 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:58,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:58,814 INFO L93 Difference]: Finished difference Result 11554 states and 51322 transitions. [2022-03-15 15:34:58,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:58,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:58,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:58,848 INFO L225 Difference]: With dead ends: 11554 [2022-03-15 15:34:58,848 INFO L226 Difference]: Without dead ends: 10878 [2022-03-15 15:34:58,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:58,848 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 151 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:58,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 245 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:34:58,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10878 states. [2022-03-15 15:34:58,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10878 to 5113. [2022-03-15 15:34:58,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.755672926447574) internal successors, (24311), 5112 states have internal predecessors, (24311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:59,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24311 transitions. [2022-03-15 15:34:59,002 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24311 transitions. Word has length 29 [2022-03-15 15:34:59,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:59,002 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24311 transitions. [2022-03-15 15:34:59,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:59,002 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24311 transitions. [2022-03-15 15:34:59,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:59,012 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:59,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:59,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable970 [2022-03-15 15:34:59,012 INFO L402 AbstractCegarLoop]: === Iteration 972 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:59,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:59,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1287677475, now seen corresponding path program 967 times [2022-03-15 15:34:59,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:59,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637595980] [2022-03-15 15:34:59,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:59,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:59,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:59,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:59,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637595980] [2022-03-15 15:34:59,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637595980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:59,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:59,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:59,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998992215] [2022-03-15 15:34:59,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:59,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:59,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:59,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:59,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:59,176 INFO L87 Difference]: Start difference. First operand 5113 states and 24311 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:59,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:59,379 INFO L93 Difference]: Finished difference Result 11202 states and 49954 transitions. [2022-03-15 15:34:59,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:59,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:59,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:59,413 INFO L225 Difference]: With dead ends: 11202 [2022-03-15 15:34:59,413 INFO L226 Difference]: Without dead ends: 10787 [2022-03-15 15:34:59,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:59,413 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 170 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:59,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 209 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:59,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10787 states. [2022-03-15 15:34:59,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10787 to 5225. [2022-03-15 15:34:59,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.745597243491577) internal successors, (24791), 5224 states have internal predecessors, (24791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:59,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24791 transitions. [2022-03-15 15:34:59,572 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24791 transitions. Word has length 29 [2022-03-15 15:34:59,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:34:59,572 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24791 transitions. [2022-03-15 15:34:59,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:59,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24791 transitions. [2022-03-15 15:34:59,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:34:59,583 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:34:59,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:34:59,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable971 [2022-03-15 15:34:59,583 INFO L402 AbstractCegarLoop]: === Iteration 973 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:34:59,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:34:59,583 INFO L85 PathProgramCache]: Analyzing trace with hash 302473445, now seen corresponding path program 968 times [2022-03-15 15:34:59,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:34:59,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128924566] [2022-03-15 15:34:59,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:34:59,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:34:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:34:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:34:59,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:34:59,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128924566] [2022-03-15 15:34:59,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128924566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:34:59,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:34:59,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:34:59,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182751228] [2022-03-15 15:34:59,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:34:59,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:34:59,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:34:59,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:34:59,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:34:59,694 INFO L87 Difference]: Start difference. First operand 5225 states and 24791 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:34:59,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:34:59,858 INFO L93 Difference]: Finished difference Result 11329 states and 50433 transitions. [2022-03-15 15:34:59,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:34:59,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:34:59,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:34:59,891 INFO L225 Difference]: With dead ends: 11329 [2022-03-15 15:34:59,892 INFO L226 Difference]: Without dead ends: 10707 [2022-03-15 15:34:59,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:34:59,892 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 154 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:34:59,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 246 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:34:59,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10707 states. [2022-03-15 15:35:00,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10707 to 5145. [2022-03-15 15:35:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.75097200622084) internal successors, (24439), 5144 states have internal predecessors, (24439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:00,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24439 transitions. [2022-03-15 15:35:00,049 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24439 transitions. Word has length 29 [2022-03-15 15:35:00,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:00,049 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24439 transitions. [2022-03-15 15:35:00,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:00,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24439 transitions. [2022-03-15 15:35:00,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:00,060 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:00,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:00,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable972 [2022-03-15 15:35:00,060 INFO L402 AbstractCegarLoop]: === Iteration 974 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:00,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:00,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1372465473, now seen corresponding path program 969 times [2022-03-15 15:35:00,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:00,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548712760] [2022-03-15 15:35:00,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:00,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:00,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:00,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:00,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548712760] [2022-03-15 15:35:00,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548712760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:00,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:00,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:00,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934689716] [2022-03-15 15:35:00,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:00,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:00,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:00,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:00,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:00,170 INFO L87 Difference]: Start difference. First operand 5145 states and 24439 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:00,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:00,327 INFO L93 Difference]: Finished difference Result 11027 states and 49171 transitions. [2022-03-15 15:35:00,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:00,327 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:00,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:00,360 INFO L225 Difference]: With dead ends: 11027 [2022-03-15 15:35:00,360 INFO L226 Difference]: Without dead ends: 10612 [2022-03-15 15:35:00,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:00,361 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 187 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:00,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 200 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:00,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10612 states. [2022-03-15 15:35:00,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10612 to 5177. [2022-03-15 15:35:00,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.743238021638331) internal successors, (24551), 5176 states have internal predecessors, (24551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:00,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24551 transitions. [2022-03-15 15:35:00,511 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24551 transitions. Word has length 29 [2022-03-15 15:35:00,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:00,511 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24551 transitions. [2022-03-15 15:35:00,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:00,511 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24551 transitions. [2022-03-15 15:35:00,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:00,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:00,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:00,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable973 [2022-03-15 15:35:00,522 INFO L402 AbstractCegarLoop]: === Iteration 975 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:00,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:00,522 INFO L85 PathProgramCache]: Analyzing trace with hash 2039931387, now seen corresponding path program 970 times [2022-03-15 15:35:00,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:00,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837256089] [2022-03-15 15:35:00,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:00,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:00,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:00,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:00,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837256089] [2022-03-15 15:35:00,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837256089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:00,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:00,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:00,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627595473] [2022-03-15 15:35:00,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:00,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:00,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:00,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:00,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:00,635 INFO L87 Difference]: Start difference. First operand 5177 states and 24551 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:00,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:00,843 INFO L93 Difference]: Finished difference Result 11027 states and 49139 transitions. [2022-03-15 15:35:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:00,844 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:00,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:00,877 INFO L225 Difference]: With dead ends: 11027 [2022-03-15 15:35:00,878 INFO L226 Difference]: Without dead ends: 10580 [2022-03-15 15:35:00,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:00,878 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 165 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:00,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 205 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:00,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10580 states. [2022-03-15 15:35:01,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10580 to 5145. [2022-03-15 15:35:01,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.747861586314152) internal successors, (24423), 5144 states have internal predecessors, (24423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:01,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24423 transitions. [2022-03-15 15:35:01,028 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24423 transitions. Word has length 29 [2022-03-15 15:35:01,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:01,028 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24423 transitions. [2022-03-15 15:35:01,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:01,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24423 transitions. [2022-03-15 15:35:01,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:01,038 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:01,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:01,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable974 [2022-03-15 15:35:01,038 INFO L402 AbstractCegarLoop]: === Iteration 976 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:01,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:01,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1155845531, now seen corresponding path program 971 times [2022-03-15 15:35:01,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:01,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169258633] [2022-03-15 15:35:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:01,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:01,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:01,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:01,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169258633] [2022-03-15 15:35:01,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169258633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:01,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:01,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:01,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836544169] [2022-03-15 15:35:01,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:01,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:01,178 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:01,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:01,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:01,179 INFO L87 Difference]: Start difference. First operand 5145 states and 24423 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:01,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:01,330 INFO L93 Difference]: Finished difference Result 11329 states and 50433 transitions. [2022-03-15 15:35:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:01,330 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:01,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:01,361 INFO L225 Difference]: With dead ends: 11329 [2022-03-15 15:35:01,361 INFO L226 Difference]: Without dead ends: 10787 [2022-03-15 15:35:01,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:01,362 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 174 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:01,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 198 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:01,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10787 states. [2022-03-15 15:35:01,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10787 to 5225. [2022-03-15 15:35:01,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.730283307810107) internal successors, (24711), 5224 states have internal predecessors, (24711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:01,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24711 transitions. [2022-03-15 15:35:01,498 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24711 transitions. Word has length 29 [2022-03-15 15:35:01,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:01,499 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24711 transitions. [2022-03-15 15:35:01,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:01,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24711 transitions. [2022-03-15 15:35:01,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:01,508 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:01,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:01,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable975 [2022-03-15 15:35:01,508 INFO L402 AbstractCegarLoop]: === Iteration 977 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:01,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:01,509 INFO L85 PathProgramCache]: Analyzing trace with hash 949037565, now seen corresponding path program 972 times [2022-03-15 15:35:01,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:01,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977492581] [2022-03-15 15:35:01,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:01,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:01,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:01,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977492581] [2022-03-15 15:35:01,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977492581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:01,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:01,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:01,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058687257] [2022-03-15 15:35:01,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:01,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:01,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:01,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:01,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:01,622 INFO L87 Difference]: Start difference. First operand 5225 states and 24711 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:01,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:01,784 INFO L93 Difference]: Finished difference Result 11202 states and 49826 transitions. [2022-03-15 15:35:01,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:01,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:01,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:01,819 INFO L225 Difference]: With dead ends: 11202 [2022-03-15 15:35:01,819 INFO L226 Difference]: Without dead ends: 10675 [2022-03-15 15:35:01,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:01,819 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 163 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:01,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 199 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:01,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10675 states. [2022-03-15 15:35:01,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10675 to 5113. [2022-03-15 15:35:01,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.752543035993741) internal successors, (24295), 5112 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:01,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24295 transitions. [2022-03-15 15:35:01,972 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24295 transitions. Word has length 29 [2022-03-15 15:35:01,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:01,972 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24295 transitions. [2022-03-15 15:35:01,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:01,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24295 transitions. [2022-03-15 15:35:01,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:01,982 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:01,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:01,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable976 [2022-03-15 15:35:01,983 INFO L402 AbstractCegarLoop]: === Iteration 978 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:01,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:01,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1736347583, now seen corresponding path program 973 times [2022-03-15 15:35:01,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:01,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948068904] [2022-03-15 15:35:01,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:01,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:02,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:02,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:02,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948068904] [2022-03-15 15:35:02,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948068904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:02,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:02,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:02,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287409060] [2022-03-15 15:35:02,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:02,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:02,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:02,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:02,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:02,106 INFO L87 Difference]: Start difference. First operand 5113 states and 24295 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:02,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:02,295 INFO L93 Difference]: Finished difference Result 10960 states and 48910 transitions. [2022-03-15 15:35:02,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:02,296 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:02,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:02,330 INFO L225 Difference]: With dead ends: 10960 [2022-03-15 15:35:02,330 INFO L226 Difference]: Without dead ends: 10545 [2022-03-15 15:35:02,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:02,330 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 168 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:02,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 214 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:02,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10545 states. [2022-03-15 15:35:02,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10545 to 5177. [2022-03-15 15:35:02,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.743238021638331) internal successors, (24551), 5176 states have internal predecessors, (24551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:02,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24551 transitions. [2022-03-15 15:35:02,489 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24551 transitions. Word has length 29 [2022-03-15 15:35:02,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:02,489 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24551 transitions. [2022-03-15 15:35:02,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:02,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24551 transitions. [2022-03-15 15:35:02,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:02,500 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:02,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:02,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable977 [2022-03-15 15:35:02,500 INFO L402 AbstractCegarLoop]: === Iteration 979 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:02,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:02,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1507060573, now seen corresponding path program 974 times [2022-03-15 15:35:02,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:02,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181147027] [2022-03-15 15:35:02,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:02,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:02,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:02,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:02,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181147027] [2022-03-15 15:35:02,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181147027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:02,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:02,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:02,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213278190] [2022-03-15 15:35:02,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:02,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:02,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:02,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:02,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:02,683 INFO L87 Difference]: Start difference. First operand 5177 states and 24551 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:02,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:02,905 INFO L93 Difference]: Finished difference Result 11022 states and 49131 transitions. [2022-03-15 15:35:02,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:02,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:02,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:02,938 INFO L225 Difference]: With dead ends: 11022 [2022-03-15 15:35:02,938 INFO L226 Difference]: Without dead ends: 10497 [2022-03-15 15:35:02,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:02,939 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 153 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:02,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 246 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:02,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10497 states. [2022-03-15 15:35:03,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10497 to 5129. [2022-03-15 15:35:03,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.750195007800312) internal successors, (24359), 5128 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:03,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24359 transitions. [2022-03-15 15:35:03,080 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24359 transitions. Word has length 29 [2022-03-15 15:35:03,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:03,081 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24359 transitions. [2022-03-15 15:35:03,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:03,081 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24359 transitions. [2022-03-15 15:35:03,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:03,090 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:03,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:03,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable978 [2022-03-15 15:35:03,091 INFO L402 AbstractCegarLoop]: === Iteration 980 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:03,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:03,091 INFO L85 PathProgramCache]: Analyzing trace with hash 2077717667, now seen corresponding path program 975 times [2022-03-15 15:35:03,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:03,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174086489] [2022-03-15 15:35:03,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:03,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:03,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:03,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174086489] [2022-03-15 15:35:03,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174086489] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:03,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:03,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:03,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696890297] [2022-03-15 15:35:03,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:03,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:03,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:03,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:03,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:03,210 INFO L87 Difference]: Start difference. First operand 5129 states and 24359 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:03,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:03,374 INFO L93 Difference]: Finished difference Result 10882 states and 48545 transitions. [2022-03-15 15:35:03,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:03,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:03,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:03,407 INFO L225 Difference]: With dead ends: 10882 [2022-03-15 15:35:03,407 INFO L226 Difference]: Without dead ends: 10467 [2022-03-15 15:35:03,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:03,407 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 172 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:03,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 219 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:03,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2022-03-15 15:35:03,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 5161. [2022-03-15 15:35:03,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.742441860465116) internal successors, (24471), 5160 states have internal predecessors, (24471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:03,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24471 transitions. [2022-03-15 15:35:03,556 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24471 transitions. Word has length 29 [2022-03-15 15:35:03,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:03,556 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24471 transitions. [2022-03-15 15:35:03,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:03,556 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24471 transitions. [2022-03-15 15:35:03,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:03,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:03,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:03,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable979 [2022-03-15 15:35:03,567 INFO L402 AbstractCegarLoop]: === Iteration 981 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:03,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:03,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1263745275, now seen corresponding path program 976 times [2022-03-15 15:35:03,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:03,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683754240] [2022-03-15 15:35:03,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:03,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:03,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:03,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:03,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683754240] [2022-03-15 15:35:03,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683754240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:03,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:03,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:03,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725166863] [2022-03-15 15:35:03,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:03,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:03,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:03,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:03,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:03,763 INFO L87 Difference]: Start difference. First operand 5161 states and 24471 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:04,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:04,016 INFO L93 Difference]: Finished difference Result 10882 states and 48513 transitions. [2022-03-15 15:35:04,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:04,016 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:04,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:04,046 INFO L225 Difference]: With dead ends: 10882 [2022-03-15 15:35:04,046 INFO L226 Difference]: Without dead ends: 10435 [2022-03-15 15:35:04,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:04,047 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 161 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:04,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 249 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:35:04,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10435 states. [2022-03-15 15:35:04,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10435 to 5129. [2022-03-15 15:35:04,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.74707488299532) internal successors, (24343), 5128 states have internal predecessors, (24343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:04,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24343 transitions. [2022-03-15 15:35:04,180 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24343 transitions. Word has length 29 [2022-03-15 15:35:04,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:04,180 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24343 transitions. [2022-03-15 15:35:04,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:04,180 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24343 transitions. [2022-03-15 15:35:04,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:04,190 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:04,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:04,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable980 [2022-03-15 15:35:04,190 INFO L402 AbstractCegarLoop]: === Iteration 982 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:04,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:04,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1399440763, now seen corresponding path program 977 times [2022-03-15 15:35:04,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:04,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552616618] [2022-03-15 15:35:04,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:04,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:04,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:04,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:04,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552616618] [2022-03-15 15:35:04,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552616618] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:04,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:04,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:04,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98721996] [2022-03-15 15:35:04,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:04,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:04,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:04,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:04,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:04,335 INFO L87 Difference]: Start difference. First operand 5129 states and 24343 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:04,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:04,532 INFO L93 Difference]: Finished difference Result 11022 states and 49147 transitions. [2022-03-15 15:35:04,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:04,532 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:04,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:04,566 INFO L225 Difference]: With dead ends: 11022 [2022-03-15 15:35:04,566 INFO L226 Difference]: Without dead ends: 10545 [2022-03-15 15:35:04,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:04,566 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:04,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 214 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:04,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10545 states. [2022-03-15 15:35:04,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10545 to 5177. [2022-03-15 15:35:04,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.737055641421947) internal successors, (24519), 5176 states have internal predecessors, (24519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:04,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24519 transitions. [2022-03-15 15:35:04,700 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24519 transitions. Word has length 29 [2022-03-15 15:35:04,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:04,700 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24519 transitions. [2022-03-15 15:35:04,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:04,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24519 transitions. [2022-03-15 15:35:04,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:04,710 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:04,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:04,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable981 [2022-03-15 15:35:04,710 INFO L402 AbstractCegarLoop]: === Iteration 983 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:04,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:04,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1814463907, now seen corresponding path program 978 times [2022-03-15 15:35:04,710 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:04,710 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837944464] [2022-03-15 15:35:04,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:04,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:04,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:04,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837944464] [2022-03-15 15:35:04,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837944464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:04,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:04,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:04,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111934241] [2022-03-15 15:35:04,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:04,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:04,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:04,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:04,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:04,844 INFO L87 Difference]: Start difference. First operand 5177 states and 24519 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:05,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:05,068 INFO L93 Difference]: Finished difference Result 10960 states and 48830 transitions. [2022-03-15 15:35:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:05,069 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:05,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:05,110 INFO L225 Difference]: With dead ends: 10960 [2022-03-15 15:35:05,110 INFO L226 Difference]: Without dead ends: 10481 [2022-03-15 15:35:05,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:05,111 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 146 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:05,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 225 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:05,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10481 states. [2022-03-15 15:35:05,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10481 to 5113. [2022-03-15 15:35:05,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.750978090766823) internal successors, (24287), 5112 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:05,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24287 transitions. [2022-03-15 15:35:05,284 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24287 transitions. Word has length 29 [2022-03-15 15:35:05,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:05,284 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24287 transitions. [2022-03-15 15:35:05,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:05,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24287 transitions. [2022-03-15 15:35:05,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:05,295 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:05,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:05,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable982 [2022-03-15 15:35:05,295 INFO L402 AbstractCegarLoop]: === Iteration 984 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:05,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:05,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1893260901, now seen corresponding path program 979 times [2022-03-15 15:35:05,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:05,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5630659] [2022-03-15 15:35:05,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:05,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:05,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:05,441 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:05,441 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5630659] [2022-03-15 15:35:05,441 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5630659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:05,441 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:05,441 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:05,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565597507] [2022-03-15 15:35:05,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:05,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:05,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:05,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:05,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:05,442 INFO L87 Difference]: Start difference. First operand 5113 states and 24287 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:05,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:05,601 INFO L93 Difference]: Finished difference Result 11619 states and 51707 transitions. [2022-03-15 15:35:05,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:05,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:05,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:05,638 INFO L225 Difference]: With dead ends: 11619 [2022-03-15 15:35:05,638 INFO L226 Difference]: Without dead ends: 11077 [2022-03-15 15:35:05,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:05,638 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 182 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:05,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 206 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:05,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11077 states. [2022-03-15 15:35:05,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11077 to 5312. [2022-03-15 15:35:05,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5312 states, 5311 states have (on average 4.721144793824139) internal successors, (25074), 5311 states have internal predecessors, (25074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:05,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5312 states to 5312 states and 25074 transitions. [2022-03-15 15:35:05,800 INFO L78 Accepts]: Start accepts. Automaton has 5312 states and 25074 transitions. Word has length 29 [2022-03-15 15:35:05,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:05,800 INFO L470 AbstractCegarLoop]: Abstraction has 5312 states and 25074 transitions. [2022-03-15 15:35:05,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:05,800 INFO L276 IsEmpty]: Start isEmpty. Operand 5312 states and 25074 transitions. [2022-03-15 15:35:05,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:05,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:05,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:05,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable983 [2022-03-15 15:35:05,811 INFO L402 AbstractCegarLoop]: === Iteration 985 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:05,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:05,811 INFO L85 PathProgramCache]: Analyzing trace with hash -812198275, now seen corresponding path program 980 times [2022-03-15 15:35:05,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:05,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094172138] [2022-03-15 15:35:05,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:05,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:05,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:05,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:05,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094172138] [2022-03-15 15:35:05,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094172138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:05,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:05,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:05,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234895732] [2022-03-15 15:35:05,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:05,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:05,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:05,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:05,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:05,948 INFO L87 Difference]: Start difference. First operand 5312 states and 25074 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:06,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:06,155 INFO L93 Difference]: Finished difference Result 11554 states and 51338 transitions. [2022-03-15 15:35:06,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:06,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:06,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:06,189 INFO L225 Difference]: With dead ends: 11554 [2022-03-15 15:35:06,190 INFO L226 Difference]: Without dead ends: 10934 [2022-03-15 15:35:06,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:06,190 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 165 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:06,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 212 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:06,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2022-03-15 15:35:06,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 5169. [2022-03-15 15:35:06,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.740518575851393) internal successors, (24499), 5168 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:06,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24499 transitions. [2022-03-15 15:35:06,342 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24499 transitions. Word has length 29 [2022-03-15 15:35:06,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:06,342 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24499 transitions. [2022-03-15 15:35:06,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:06,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24499 transitions. [2022-03-15 15:35:06,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:06,353 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:06,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:06,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable984 [2022-03-15 15:35:06,353 INFO L402 AbstractCegarLoop]: === Iteration 986 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:06,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:06,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1920804349, now seen corresponding path program 981 times [2022-03-15 15:35:06,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:06,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349039664] [2022-03-15 15:35:06,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:06,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:06,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:06,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:06,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349039664] [2022-03-15 15:35:06,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349039664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:06,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:06,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:06,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644410171] [2022-03-15 15:35:06,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:06,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:06,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:06,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:06,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:06,494 INFO L87 Difference]: Start difference. First operand 5169 states and 24499 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:06,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:06,700 INFO L93 Difference]: Finished difference Result 11494 states and 51120 transitions. [2022-03-15 15:35:06,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:06,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:06,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:06,735 INFO L225 Difference]: With dead ends: 11494 [2022-03-15 15:35:06,736 INFO L226 Difference]: Without dead ends: 10952 [2022-03-15 15:35:06,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:06,736 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:06,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 233 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:06,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10952 states. [2022-03-15 15:35:06,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10952 to 5249. [2022-03-15 15:35:06,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.723132621951219) internal successors, (24787), 5248 states have internal predecessors, (24787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:06,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24787 transitions. [2022-03-15 15:35:06,887 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24787 transitions. Word has length 29 [2022-03-15 15:35:06,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:06,887 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 24787 transitions. [2022-03-15 15:35:06,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:06,887 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24787 transitions. [2022-03-15 15:35:06,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:06,897 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:06,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:06,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable985 [2022-03-15 15:35:06,897 INFO L402 AbstractCegarLoop]: === Iteration 987 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:06,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:06,897 INFO L85 PathProgramCache]: Analyzing trace with hash 232558077, now seen corresponding path program 982 times [2022-03-15 15:35:06,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:06,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732609182] [2022-03-15 15:35:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:06,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:07,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:07,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:07,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732609182] [2022-03-15 15:35:07,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732609182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:07,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:07,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:07,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317856416] [2022-03-15 15:35:07,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:07,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:07,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:07,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:07,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:07,062 INFO L87 Difference]: Start difference. First operand 5249 states and 24787 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:07,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:07,289 INFO L93 Difference]: Finished difference Result 11367 states and 50513 transitions. [2022-03-15 15:35:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:07,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:07,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:07,328 INFO L225 Difference]: With dead ends: 11367 [2022-03-15 15:35:07,328 INFO L226 Difference]: Without dead ends: 10872 [2022-03-15 15:35:07,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:07,328 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 161 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:07,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 217 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:35:07,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10872 states. [2022-03-15 15:35:07,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10872 to 5169. [2022-03-15 15:35:07,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.732778637770898) internal successors, (24459), 5168 states have internal predecessors, (24459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:07,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24459 transitions. [2022-03-15 15:35:07,491 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24459 transitions. Word has length 29 [2022-03-15 15:35:07,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:07,492 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24459 transitions. [2022-03-15 15:35:07,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:07,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24459 transitions. [2022-03-15 15:35:07,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:07,502 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:07,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:07,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable986 [2022-03-15 15:35:07,502 INFO L402 AbstractCegarLoop]: === Iteration 988 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:07,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:07,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1986157985, now seen corresponding path program 983 times [2022-03-15 15:35:07,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:07,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720480354] [2022-03-15 15:35:07,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:07,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:07,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:07,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:07,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720480354] [2022-03-15 15:35:07,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720480354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:07,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:07,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:07,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025595409] [2022-03-15 15:35:07,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:07,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:07,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:07,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:07,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:07,702 INFO L87 Difference]: Start difference. First operand 5169 states and 24459 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:07,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:07,969 INFO L93 Difference]: Finished difference Result 11332 states and 50420 transitions. [2022-03-15 15:35:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:07,970 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:07,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:08,003 INFO L225 Difference]: With dead ends: 11332 [2022-03-15 15:35:08,004 INFO L226 Difference]: Without dead ends: 10855 [2022-03-15 15:35:08,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:08,004 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 149 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:08,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 276 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:35:08,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10855 states. [2022-03-15 15:35:08,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10855 to 5217. [2022-03-15 15:35:08,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.722967791411043) internal successors, (24635), 5216 states have internal predecessors, (24635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:08,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24635 transitions. [2022-03-15 15:35:08,152 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24635 transitions. Word has length 29 [2022-03-15 15:35:08,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:08,152 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24635 transitions. [2022-03-15 15:35:08,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:08,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24635 transitions. [2022-03-15 15:35:08,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:08,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:08,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:08,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable987 [2022-03-15 15:35:08,163 INFO L402 AbstractCegarLoop]: === Iteration 989 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:08,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:08,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1462012349, now seen corresponding path program 984 times [2022-03-15 15:35:08,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:08,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539308571] [2022-03-15 15:35:08,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:08,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:08,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:08,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:08,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539308571] [2022-03-15 15:35:08,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539308571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:08,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:08,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:08,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183118470] [2022-03-15 15:35:08,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:08,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:08,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:08,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:08,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:08,312 INFO L87 Difference]: Start difference. First operand 5217 states and 24635 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:08,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:08,522 INFO L93 Difference]: Finished difference Result 11270 states and 50103 transitions. [2022-03-15 15:35:08,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:08,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:08,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:08,556 INFO L225 Difference]: With dead ends: 11270 [2022-03-15 15:35:08,556 INFO L226 Difference]: Without dead ends: 10727 [2022-03-15 15:35:08,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:08,556 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:08,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 221 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:08,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10727 states. [2022-03-15 15:35:08,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10727 to 5089. [2022-03-15 15:35:08,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.7560927672955975) internal successors, (24199), 5088 states have internal predecessors, (24199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:08,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24199 transitions. [2022-03-15 15:35:08,703 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24199 transitions. Word has length 29 [2022-03-15 15:35:08,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:08,703 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24199 transitions. [2022-03-15 15:35:08,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:08,703 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24199 transitions. [2022-03-15 15:35:08,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:08,713 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:08,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:08,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable988 [2022-03-15 15:35:08,713 INFO L402 AbstractCegarLoop]: === Iteration 990 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:08,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:08,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1726630307, now seen corresponding path program 985 times [2022-03-15 15:35:08,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:08,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736610021] [2022-03-15 15:35:08,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:08,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:08,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:08,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:08,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736610021] [2022-03-15 15:35:08,890 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736610021] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:08,890 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:08,890 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:08,890 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172991006] [2022-03-15 15:35:08,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:08,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:08,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:08,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:08,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:08,890 INFO L87 Difference]: Start difference. First operand 5089 states and 24199 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:09,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:09,111 INFO L93 Difference]: Finished difference Result 11455 states and 51149 transitions. [2022-03-15 15:35:09,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:09,111 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:09,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:09,146 INFO L225 Difference]: With dead ends: 11455 [2022-03-15 15:35:09,146 INFO L226 Difference]: Without dead ends: 11040 [2022-03-15 15:35:09,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:09,146 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:09,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 217 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:09,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11040 states. [2022-03-15 15:35:09,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11040 to 5253. [2022-03-15 15:35:09,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.747715156130997) internal successors, (24935), 5252 states have internal predecessors, (24935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:09,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24935 transitions. [2022-03-15 15:35:09,304 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24935 transitions. Word has length 29 [2022-03-15 15:35:09,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:09,304 INFO L470 AbstractCegarLoop]: Abstraction has 5253 states and 24935 transitions. [2022-03-15 15:35:09,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:09,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24935 transitions. [2022-03-15 15:35:09,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:09,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:09,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:09,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable989 [2022-03-15 15:35:09,315 INFO L402 AbstractCegarLoop]: === Iteration 991 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:09,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:09,315 INFO L85 PathProgramCache]: Analyzing trace with hash 741426277, now seen corresponding path program 986 times [2022-03-15 15:35:09,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:09,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118028860] [2022-03-15 15:35:09,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:09,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:09,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:09,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:09,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118028860] [2022-03-15 15:35:09,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118028860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:09,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:09,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:09,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670710191] [2022-03-15 15:35:09,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:09,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:09,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:09,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:09,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:09,504 INFO L87 Difference]: Start difference. First operand 5253 states and 24935 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:09,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:09,702 INFO L93 Difference]: Finished difference Result 11582 states and 51628 transitions. [2022-03-15 15:35:09,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:09,702 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:09,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:09,738 INFO L225 Difference]: With dead ends: 11582 [2022-03-15 15:35:09,738 INFO L226 Difference]: Without dead ends: 10960 [2022-03-15 15:35:09,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:09,738 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 182 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:09,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 196 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:09,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10960 states. [2022-03-15 15:35:09,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10960 to 5173. [2022-03-15 15:35:09,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.7515467904099) internal successors, (24575), 5172 states have internal predecessors, (24575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:09,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24575 transitions. [2022-03-15 15:35:09,892 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24575 transitions. Word has length 29 [2022-03-15 15:35:09,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:09,893 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24575 transitions. [2022-03-15 15:35:09,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:09,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24575 transitions. [2022-03-15 15:35:09,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:09,904 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:09,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:09,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable990 [2022-03-15 15:35:09,904 INFO L402 AbstractCegarLoop]: === Iteration 992 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:09,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:09,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1506828451, now seen corresponding path program 987 times [2022-03-15 15:35:09,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:09,904 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108101528] [2022-03-15 15:35:09,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:09,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:10,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:10,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108101528] [2022-03-15 15:35:10,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108101528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:10,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:10,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:10,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150116029] [2022-03-15 15:35:10,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:10,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:10,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:10,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:10,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:10,079 INFO L87 Difference]: Start difference. First operand 5173 states and 24575 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:10,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:10,275 INFO L93 Difference]: Finished difference Result 11358 states and 50707 transitions. [2022-03-15 15:35:10,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:10,275 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:10,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:10,306 INFO L225 Difference]: With dead ends: 11358 [2022-03-15 15:35:10,307 INFO L226 Difference]: Without dead ends: 10943 [2022-03-15 15:35:10,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:10,307 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 174 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:10,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 218 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:10,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10943 states. [2022-03-15 15:35:10,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10943 to 5221. [2022-03-15 15:35:10,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.741570881226053) internal successors, (24751), 5220 states have internal predecessors, (24751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:10,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24751 transitions. [2022-03-15 15:35:10,443 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24751 transitions. Word has length 29 [2022-03-15 15:35:10,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:10,443 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24751 transitions. [2022-03-15 15:35:10,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:10,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24751 transitions. [2022-03-15 15:35:10,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:10,453 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:10,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:10,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable991 [2022-03-15 15:35:10,453 INFO L402 AbstractCegarLoop]: === Iteration 993 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:10,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:10,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1736115461, now seen corresponding path program 988 times [2022-03-15 15:35:10,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:10,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044808672] [2022-03-15 15:35:10,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:10,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:10,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:10,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:10,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044808672] [2022-03-15 15:35:10,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044808672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:10,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:10,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:10,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052221630] [2022-03-15 15:35:10,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:10,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:10,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:10,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:10,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:10,623 INFO L87 Difference]: Start difference. First operand 5221 states and 24751 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:10,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:10,838 INFO L93 Difference]: Finished difference Result 11420 states and 50928 transitions. [2022-03-15 15:35:10,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:10,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:10,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:10,870 INFO L225 Difference]: With dead ends: 11420 [2022-03-15 15:35:10,870 INFO L226 Difference]: Without dead ends: 10895 [2022-03-15 15:35:10,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:10,870 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 140 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:10,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 243 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:10,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10895 states. [2022-03-15 15:35:11,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10895 to 5173. [2022-03-15 15:35:11,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.746906419180201) internal successors, (24551), 5172 states have internal predecessors, (24551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:11,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24551 transitions. [2022-03-15 15:35:11,059 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24551 transitions. Word has length 29 [2022-03-15 15:35:11,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:11,059 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24551 transitions. [2022-03-15 15:35:11,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:11,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24551 transitions. [2022-03-15 15:35:11,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:11,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:11,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:11,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable992 [2022-03-15 15:35:11,070 INFO L402 AbstractCegarLoop]: === Iteration 994 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:11,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:11,070 INFO L85 PathProgramCache]: Analyzing trace with hash -824350905, now seen corresponding path program 989 times [2022-03-15 15:35:11,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:11,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545615277] [2022-03-15 15:35:11,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:11,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:11,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:11,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:11,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545615277] [2022-03-15 15:35:11,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545615277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:11,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:11,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:11,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517009102] [2022-03-15 15:35:11,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:11,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:11,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:11,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:11,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:11,225 INFO L87 Difference]: Start difference. First operand 5173 states and 24551 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:11,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:11,410 INFO L93 Difference]: Finished difference Result 11707 states and 52143 transitions. [2022-03-15 15:35:11,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:11,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:11,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:11,447 INFO L225 Difference]: With dead ends: 11707 [2022-03-15 15:35:11,448 INFO L226 Difference]: Without dead ends: 11165 [2022-03-15 15:35:11,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:11,448 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 179 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:11,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 228 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:11,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11165 states. [2022-03-15 15:35:11,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11165 to 5316. [2022-03-15 15:35:11,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5316 states, 5315 states have (on average 4.716839134524929) internal successors, (25070), 5315 states have internal predecessors, (25070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:11,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5316 states to 5316 states and 25070 transitions. [2022-03-15 15:35:11,616 INFO L78 Accepts]: Start accepts. Automaton has 5316 states and 25070 transitions. Word has length 29 [2022-03-15 15:35:11,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:11,616 INFO L470 AbstractCegarLoop]: Abstraction has 5316 states and 25070 transitions. [2022-03-15 15:35:11,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:11,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5316 states and 25070 transitions. [2022-03-15 15:35:11,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:11,628 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:11,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:11,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable993 [2022-03-15 15:35:11,628 INFO L402 AbstractCegarLoop]: === Iteration 995 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:11,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:11,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1427279397, now seen corresponding path program 990 times [2022-03-15 15:35:11,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:11,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101478225] [2022-03-15 15:35:11,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:11,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:11,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:11,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:11,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101478225] [2022-03-15 15:35:11,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101478225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:11,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:11,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:11,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762873182] [2022-03-15 15:35:11,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:11,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:11,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:11,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:11,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:11,787 INFO L87 Difference]: Start difference. First operand 5316 states and 25070 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:12,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:12,014 INFO L93 Difference]: Finished difference Result 11642 states and 51774 transitions. [2022-03-15 15:35:12,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:12,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:12,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:12,050 INFO L225 Difference]: With dead ends: 11642 [2022-03-15 15:35:12,050 INFO L226 Difference]: Without dead ends: 10966 [2022-03-15 15:35:12,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:12,050 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 174 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:12,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 230 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:12,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2022-03-15 15:35:12,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 5117. [2022-03-15 15:35:12,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.753518373729476) internal successors, (24319), 5116 states have internal predecessors, (24319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:12,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24319 transitions. [2022-03-15 15:35:12,215 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24319 transitions. Word has length 29 [2022-03-15 15:35:12,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:12,215 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24319 transitions. [2022-03-15 15:35:12,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:12,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24319 transitions. [2022-03-15 15:35:12,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:12,225 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:12,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:12,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable994 [2022-03-15 15:35:12,225 INFO L402 AbstractCegarLoop]: === Iteration 996 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:12,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:12,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1219195973, now seen corresponding path program 991 times [2022-03-15 15:35:12,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:12,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785589740] [2022-03-15 15:35:12,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:12,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:12,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:12,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:12,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785589740] [2022-03-15 15:35:12,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785589740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:12,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:12,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:12,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547578526] [2022-03-15 15:35:12,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:12,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:12,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:12,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:12,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:12,370 INFO L87 Difference]: Start difference. First operand 5117 states and 24319 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:12,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:12,609 INFO L93 Difference]: Finished difference Result 11306 states and 50506 transitions. [2022-03-15 15:35:12,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:12,609 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:12,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:12,642 INFO L225 Difference]: With dead ends: 11306 [2022-03-15 15:35:12,643 INFO L226 Difference]: Without dead ends: 10891 [2022-03-15 15:35:12,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:12,643 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 157 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:12,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 248 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:12,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2022-03-15 15:35:12,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 5237. [2022-03-15 15:35:12,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.744652406417113) internal successors, (24843), 5236 states have internal predecessors, (24843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:12,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24843 transitions. [2022-03-15 15:35:12,790 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24843 transitions. Word has length 29 [2022-03-15 15:35:12,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:12,790 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 24843 transitions. [2022-03-15 15:35:12,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:12,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24843 transitions. [2022-03-15 15:35:12,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:12,801 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:12,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:12,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable995 [2022-03-15 15:35:12,801 INFO L402 AbstractCegarLoop]: === Iteration 997 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:12,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:12,801 INFO L85 PathProgramCache]: Analyzing trace with hash 233991943, now seen corresponding path program 992 times [2022-03-15 15:35:12,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:12,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654768350] [2022-03-15 15:35:12,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:12,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:12,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:12,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:12,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654768350] [2022-03-15 15:35:12,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654768350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:12,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:12,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:12,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253464543] [2022-03-15 15:35:12,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:12,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:12,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:12,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:12,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:12,971 INFO L87 Difference]: Start difference. First operand 5237 states and 24843 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:13,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:13,170 INFO L93 Difference]: Finished difference Result 11433 states and 50985 transitions. [2022-03-15 15:35:13,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:13,170 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:13,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:13,208 INFO L225 Difference]: With dead ends: 11433 [2022-03-15 15:35:13,208 INFO L226 Difference]: Without dead ends: 10811 [2022-03-15 15:35:13,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:13,208 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 150 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:13,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 247 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:13,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10811 states. [2022-03-15 15:35:13,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10811 to 5157. [2022-03-15 15:35:13,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.7484484096198605) internal successors, (24483), 5156 states have internal predecessors, (24483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:13,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24483 transitions. [2022-03-15 15:35:13,394 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24483 transitions. Word has length 29 [2022-03-15 15:35:13,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:13,394 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24483 transitions. [2022-03-15 15:35:13,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:13,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24483 transitions. [2022-03-15 15:35:13,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:13,405 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:13,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:13,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable996 [2022-03-15 15:35:13,405 INFO L402 AbstractCegarLoop]: === Iteration 998 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:13,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:13,405 INFO L85 PathProgramCache]: Analyzing trace with hash -317923101, now seen corresponding path program 993 times [2022-03-15 15:35:13,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:13,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536965905] [2022-03-15 15:35:13,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:13,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:13,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:13,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536965905] [2022-03-15 15:35:13,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536965905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:13,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:13,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:13,579 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088044411] [2022-03-15 15:35:13,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:13,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:13,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:13,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:13,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:13,579 INFO L87 Difference]: Start difference. First operand 5157 states and 24483 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:13,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:13,801 INFO L93 Difference]: Finished difference Result 11099 states and 49619 transitions. [2022-03-15 15:35:13,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:13,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:13,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:13,836 INFO L225 Difference]: With dead ends: 11099 [2022-03-15 15:35:13,836 INFO L226 Difference]: Without dead ends: 10684 [2022-03-15 15:35:13,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:13,837 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 167 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:13,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 220 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:13,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2022-03-15 15:35:13,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 5205. [2022-03-15 15:35:13,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 4.738470407378939) internal successors, (24659), 5204 states have internal predecessors, (24659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:13,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 24659 transitions. [2022-03-15 15:35:13,981 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 24659 transitions. Word has length 29 [2022-03-15 15:35:13,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:13,981 INFO L470 AbstractCegarLoop]: Abstraction has 5205 states and 24659 transitions. [2022-03-15 15:35:13,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:13,981 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 24659 transitions. [2022-03-15 15:35:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:13,991 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:13,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:13,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable997 [2022-03-15 15:35:13,992 INFO L402 AbstractCegarLoop]: === Iteration 999 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:13,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:13,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1743643461, now seen corresponding path program 994 times [2022-03-15 15:35:13,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:13,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46698072] [2022-03-15 15:35:13,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:13,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:14,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:14,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:14,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46698072] [2022-03-15 15:35:14,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46698072] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:14,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:14,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:14,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024243839] [2022-03-15 15:35:14,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:14,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:14,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:14,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:14,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:14,167 INFO L87 Difference]: Start difference. First operand 5205 states and 24659 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:14,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:14,363 INFO L93 Difference]: Finished difference Result 10827 states and 48610 transitions. [2022-03-15 15:35:14,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:14,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:14,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:14,394 INFO L225 Difference]: With dead ends: 10827 [2022-03-15 15:35:14,394 INFO L226 Difference]: Without dead ends: 10316 [2022-03-15 15:35:14,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:14,394 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:14,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 258 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:14,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10316 states. [2022-03-15 15:35:14,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10316 to 5157. [2022-03-15 15:35:14,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.743793638479441) internal successors, (24459), 5156 states have internal predecessors, (24459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:14,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24459 transitions. [2022-03-15 15:35:14,536 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24459 transitions. Word has length 29 [2022-03-15 15:35:14,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:14,536 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24459 transitions. [2022-03-15 15:35:14,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:14,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24459 transitions. [2022-03-15 15:35:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:14,547 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:14,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:14,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable998 [2022-03-15 15:35:14,547 INFO L402 AbstractCegarLoop]: === Iteration 1000 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:14,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:14,547 INFO L85 PathProgramCache]: Analyzing trace with hash 789349767, now seen corresponding path program 995 times [2022-03-15 15:35:14,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:14,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308737165] [2022-03-15 15:35:14,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:14,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:14,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:14,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308737165] [2022-03-15 15:35:14,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308737165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:14,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:14,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:14,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994152867] [2022-03-15 15:35:14,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:14,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:14,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:14,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:14,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:14,664 INFO L87 Difference]: Start difference. First operand 5157 states and 24459 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:14,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:14,821 INFO L93 Difference]: Finished difference Result 11282 states and 50390 transitions. [2022-03-15 15:35:14,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:14,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:14,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:14,854 INFO L225 Difference]: With dead ends: 11282 [2022-03-15 15:35:14,854 INFO L226 Difference]: Without dead ends: 10740 [2022-03-15 15:35:14,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:14,854 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:14,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 206 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:14,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10740 states. [2022-03-15 15:35:14,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10740 to 5261. [2022-03-15 15:35:14,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.723764258555133) internal successors, (24847), 5260 states have internal predecessors, (24847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:15,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24847 transitions. [2022-03-15 15:35:15,000 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24847 transitions. Word has length 29 [2022-03-15 15:35:15,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:15,000 INFO L470 AbstractCegarLoop]: Abstraction has 5261 states and 24847 transitions. [2022-03-15 15:35:15,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:15,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24847 transitions. [2022-03-15 15:35:15,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:15,011 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:15,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:15,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable999 [2022-03-15 15:35:15,011 INFO L402 AbstractCegarLoop]: === Iteration 1001 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:15,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:15,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1350782565, now seen corresponding path program 996 times [2022-03-15 15:35:15,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:15,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549053093] [2022-03-15 15:35:15,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:15,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:15,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:15,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:15,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549053093] [2022-03-15 15:35:15,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549053093] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:15,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:15,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:15,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571392358] [2022-03-15 15:35:15,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:15,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:15,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:15,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:15,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:15,125 INFO L87 Difference]: Start difference. First operand 5261 states and 24847 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:15,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:15,284 INFO L93 Difference]: Finished difference Result 10883 states and 48798 transitions. [2022-03-15 15:35:15,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:15,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:15,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:15,316 INFO L225 Difference]: With dead ends: 10883 [2022-03-15 15:35:15,317 INFO L226 Difference]: Without dead ends: 10276 [2022-03-15 15:35:15,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:15,317 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 172 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:15,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 196 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:15,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10276 states. [2022-03-15 15:35:15,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10276 to 5117. [2022-03-15 15:35:15,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.749609069585614) internal successors, (24299), 5116 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:15,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24299 transitions. [2022-03-15 15:35:15,457 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24299 transitions. Word has length 29 [2022-03-15 15:35:15,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:15,457 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24299 transitions. [2022-03-15 15:35:15,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:15,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24299 transitions. [2022-03-15 15:35:15,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:15,467 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:15,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:15,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1000 [2022-03-15 15:35:15,467 INFO L402 AbstractCegarLoop]: === Iteration 1002 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:15,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:15,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1834682397, now seen corresponding path program 997 times [2022-03-15 15:35:15,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:15,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984867201] [2022-03-15 15:35:15,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:15,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:15,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:15,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984867201] [2022-03-15 15:35:15,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984867201] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:15,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:15,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:15,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20043316] [2022-03-15 15:35:15,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:15,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:15,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:15,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:15,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:15,578 INFO L87 Difference]: Start difference. First operand 5117 states and 24299 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:15,768 INFO L93 Difference]: Finished difference Result 11096 states and 49602 transitions. [2022-03-15 15:35:15,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:15,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:15,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:15,802 INFO L225 Difference]: With dead ends: 11096 [2022-03-15 15:35:15,803 INFO L226 Difference]: Without dead ends: 10681 [2022-03-15 15:35:15,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:15,803 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 160 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:15,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 216 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:15,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10681 states. [2022-03-15 15:35:15,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10681 to 5189. [2022-03-15 15:35:15,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.741518889745567) internal successors, (24599), 5188 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24599 transitions. [2022-03-15 15:35:15,951 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24599 transitions. Word has length 29 [2022-03-15 15:35:15,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:15,952 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24599 transitions. [2022-03-15 15:35:15,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:15,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24599 transitions. [2022-03-15 15:35:15,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:15,962 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:15,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:15,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1001 [2022-03-15 15:35:15,962 INFO L402 AbstractCegarLoop]: === Iteration 1003 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:15,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:15,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1605395387, now seen corresponding path program 998 times [2022-03-15 15:35:15,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:15,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300993979] [2022-03-15 15:35:15,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:15,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:16,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:16,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300993979] [2022-03-15 15:35:16,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300993979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:16,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:16,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:16,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033311753] [2022-03-15 15:35:16,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:16,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:16,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:16,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:16,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:16,135 INFO L87 Difference]: Start difference. First operand 5189 states and 24599 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:16,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:16,352 INFO L93 Difference]: Finished difference Result 11158 states and 49823 transitions. [2022-03-15 15:35:16,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:16,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:16,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:16,387 INFO L225 Difference]: With dead ends: 11158 [2022-03-15 15:35:16,387 INFO L226 Difference]: Without dead ends: 10633 [2022-03-15 15:35:16,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:16,388 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 170 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:16,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 218 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:16,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10633 states. [2022-03-15 15:35:16,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10633 to 5141. [2022-03-15 15:35:16,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.746887159533074) internal successors, (24399), 5140 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:16,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24399 transitions. [2022-03-15 15:35:16,557 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24399 transitions. Word has length 29 [2022-03-15 15:35:16,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:16,557 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24399 transitions. [2022-03-15 15:35:16,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:16,557 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24399 transitions. [2022-03-15 15:35:16,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:16,568 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:16,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:16,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1002 [2022-03-15 15:35:16,568 INFO L402 AbstractCegarLoop]: === Iteration 1004 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:16,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:16,568 INFO L85 PathProgramCache]: Analyzing trace with hash -99790139, now seen corresponding path program 999 times [2022-03-15 15:35:16,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:16,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585339555] [2022-03-15 15:35:16,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:16,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:16,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:16,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:16,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585339555] [2022-03-15 15:35:16,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585339555] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:16,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:16,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:16,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058743195] [2022-03-15 15:35:16,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:16,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:16,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:16,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:16,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:16,722 INFO L87 Difference]: Start difference. First operand 5141 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:16,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:16,925 INFO L93 Difference]: Finished difference Result 10986 states and 49133 transitions. [2022-03-15 15:35:16,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:16,925 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:16,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:16,959 INFO L225 Difference]: With dead ends: 10986 [2022-03-15 15:35:16,959 INFO L226 Difference]: Without dead ends: 10571 [2022-03-15 15:35:16,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:16,959 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 163 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:16,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 231 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:16,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10571 states. [2022-03-15 15:35:17,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10571 to 5189. [2022-03-15 15:35:17,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.736892829606785) internal successors, (24575), 5188 states have internal predecessors, (24575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24575 transitions. [2022-03-15 15:35:17,106 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24575 transitions. Word has length 29 [2022-03-15 15:35:17,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:17,106 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24575 transitions. [2022-03-15 15:35:17,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:17,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24575 transitions. [2022-03-15 15:35:17,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:17,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:17,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:17,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1003 [2022-03-15 15:35:17,118 INFO L402 AbstractCegarLoop]: === Iteration 1005 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:17,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:17,118 INFO L85 PathProgramCache]: Analyzing trace with hash 967457349, now seen corresponding path program 1000 times [2022-03-15 15:35:17,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:17,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394448568] [2022-03-15 15:35:17,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:17,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:17,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:17,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394448568] [2022-03-15 15:35:17,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394448568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:17,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:17,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:17,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678646889] [2022-03-15 15:35:17,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:17,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:17,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:17,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:17,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:17,287 INFO L87 Difference]: Start difference. First operand 5189 states and 24575 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:17,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:17,496 INFO L93 Difference]: Finished difference Result 10714 states and 48124 transitions. [2022-03-15 15:35:17,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:17,496 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:17,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:17,529 INFO L225 Difference]: With dead ends: 10714 [2022-03-15 15:35:17,529 INFO L226 Difference]: Without dead ends: 10203 [2022-03-15 15:35:17,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:17,530 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 161 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:17,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 216 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:17,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10203 states. [2022-03-15 15:35:17,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10203 to 5141. [2022-03-15 15:35:17,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.742217898832685) internal successors, (24375), 5140 states have internal predecessors, (24375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:17,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24375 transitions. [2022-03-15 15:35:17,683 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24375 transitions. Word has length 29 [2022-03-15 15:35:17,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:17,683 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24375 transitions. [2022-03-15 15:35:17,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:17,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24375 transitions. [2022-03-15 15:35:17,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:17,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:17,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:17,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1004 [2022-03-15 15:35:17,694 INFO L402 AbstractCegarLoop]: === Iteration 1006 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:17,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:17,694 INFO L85 PathProgramCache]: Analyzing trace with hash -419852761, now seen corresponding path program 1001 times [2022-03-15 15:35:17,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:17,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505749108] [2022-03-15 15:35:17,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:17,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:17,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:17,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:17,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505749108] [2022-03-15 15:35:17,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505749108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:17,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:17,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:17,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462549863] [2022-03-15 15:35:17,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:17,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:17,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:17,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:17,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:17,873 INFO L87 Difference]: Start difference. First operand 5141 states and 24375 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:18,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:18,142 INFO L93 Difference]: Finished difference Result 11072 states and 49502 transitions. [2022-03-15 15:35:18,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:18,142 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:18,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:18,180 INFO L225 Difference]: With dead ends: 11072 [2022-03-15 15:35:18,180 INFO L226 Difference]: Without dead ends: 10595 [2022-03-15 15:35:18,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:18,180 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 157 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:18,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 221 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:18,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10595 states. [2022-03-15 15:35:18,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10595 to 5213. [2022-03-15 15:35:18,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.7296623177283195) internal successors, (24651), 5212 states have internal predecessors, (24651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:18,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24651 transitions. [2022-03-15 15:35:18,324 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24651 transitions. Word has length 29 [2022-03-15 15:35:18,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:18,325 INFO L470 AbstractCegarLoop]: Abstraction has 5213 states and 24651 transitions. [2022-03-15 15:35:18,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:18,325 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24651 transitions. [2022-03-15 15:35:18,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:18,335 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:18,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:18,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1005 [2022-03-15 15:35:18,335 INFO L402 AbstractCegarLoop]: === Iteration 1007 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:18,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:18,335 INFO L85 PathProgramCache]: Analyzing trace with hash -509612411, now seen corresponding path program 1002 times [2022-03-15 15:35:18,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:18,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820744139] [2022-03-15 15:35:18,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:18,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:18,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:18,494 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:18,494 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820744139] [2022-03-15 15:35:18,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820744139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:18,494 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:18,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:18,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602566472] [2022-03-15 15:35:18,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:18,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:18,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:18,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:18,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:18,495 INFO L87 Difference]: Start difference. First operand 5213 states and 24651 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:18,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:18,726 INFO L93 Difference]: Finished difference Result 10738 states and 48200 transitions. [2022-03-15 15:35:18,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:18,726 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:18,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:18,758 INFO L225 Difference]: With dead ends: 10738 [2022-03-15 15:35:18,758 INFO L226 Difference]: Without dead ends: 10179 [2022-03-15 15:35:18,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:18,758 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 148 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:18,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 248 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:18,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10179 states. [2022-03-15 15:35:18,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10179 to 5117. [2022-03-15 15:35:18,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.747263487099296) internal successors, (24287), 5116 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:18,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24287 transitions. [2022-03-15 15:35:18,902 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24287 transitions. Word has length 29 [2022-03-15 15:35:18,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:18,902 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24287 transitions. [2022-03-15 15:35:18,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:18,903 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24287 transitions. [2022-03-15 15:35:18,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:18,913 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:18,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:18,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1006 [2022-03-15 15:35:18,913 INFO L402 AbstractCegarLoop]: === Iteration 1008 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:18,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:18,913 INFO L85 PathProgramCache]: Analyzing trace with hash 954709993, now seen corresponding path program 1003 times [2022-03-15 15:35:18,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:18,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859999443] [2022-03-15 15:35:18,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:18,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:19,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:19,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:19,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859999443] [2022-03-15 15:35:19,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859999443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:19,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:19,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:19,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729129944] [2022-03-15 15:35:19,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:19,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:19,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:19,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:19,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:19,080 INFO L87 Difference]: Start difference. First operand 5117 states and 24287 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:19,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:19,303 INFO L93 Difference]: Finished difference Result 11672 states and 52057 transitions. [2022-03-15 15:35:19,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:19,304 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:19,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:19,339 INFO L225 Difference]: With dead ends: 11672 [2022-03-15 15:35:19,339 INFO L226 Difference]: Without dead ends: 11130 [2022-03-15 15:35:19,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:19,339 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 162 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:19,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 236 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:19,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11130 states. [2022-03-15 15:35:19,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11130 to 5328. [2022-03-15 15:35:19,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 4.719729678993805) internal successors, (25142), 5327 states have internal predecessors, (25142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:19,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 25142 transitions. [2022-03-15 15:35:19,496 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 25142 transitions. Word has length 29 [2022-03-15 15:35:19,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:19,497 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 25142 transitions. [2022-03-15 15:35:19,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:19,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 25142 transitions. [2022-03-15 15:35:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:19,507 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:19,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:19,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1007 [2022-03-15 15:35:19,507 INFO L402 AbstractCegarLoop]: === Iteration 1009 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:19,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:19,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1088627001, now seen corresponding path program 1004 times [2022-03-15 15:35:19,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:19,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847395660] [2022-03-15 15:35:19,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:19,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:19,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:19,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:19,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847395660] [2022-03-15 15:35:19,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847395660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:19,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:19,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:19,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955968617] [2022-03-15 15:35:19,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:19,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:19,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:19,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:19,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:19,677 INFO L87 Difference]: Start difference. First operand 5328 states and 25142 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:19,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:19,905 INFO L93 Difference]: Finished difference Result 11607 states and 51688 transitions. [2022-03-15 15:35:19,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:19,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:19,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:19,938 INFO L225 Difference]: With dead ends: 11607 [2022-03-15 15:35:19,938 INFO L226 Difference]: Without dead ends: 10987 [2022-03-15 15:35:19,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:19,939 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 163 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:19,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 240 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:19,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10987 states. [2022-03-15 15:35:20,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10987 to 5185. [2022-03-15 15:35:20,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.736689814814815) internal successors, (24555), 5184 states have internal predecessors, (24555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:20,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24555 transitions. [2022-03-15 15:35:20,086 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24555 transitions. Word has length 29 [2022-03-15 15:35:20,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:20,086 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24555 transitions. [2022-03-15 15:35:20,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:20,086 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24555 transitions. [2022-03-15 15:35:20,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:20,096 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:20,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:20,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1008 [2022-03-15 15:35:20,097 INFO L402 AbstractCegarLoop]: === Iteration 1010 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:20,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:20,097 INFO L85 PathProgramCache]: Analyzing trace with hash 595032263, now seen corresponding path program 1005 times [2022-03-15 15:35:20,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:20,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321519069] [2022-03-15 15:35:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:20,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:20,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:20,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321519069] [2022-03-15 15:35:20,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321519069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:20,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:20,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:20,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520153976] [2022-03-15 15:35:20,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:20,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:20,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:20,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:20,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:20,247 INFO L87 Difference]: Start difference. First operand 5185 states and 24555 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:20,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:20,447 INFO L93 Difference]: Finished difference Result 11396 states and 50879 transitions. [2022-03-15 15:35:20,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:20,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:20,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:20,483 INFO L225 Difference]: With dead ends: 11396 [2022-03-15 15:35:20,483 INFO L226 Difference]: Without dead ends: 10854 [2022-03-15 15:35:20,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:20,483 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 163 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:20,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 228 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:20,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-03-15 15:35:20,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 5289. [2022-03-15 15:35:20,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 4.7169062027231465) internal successors, (24943), 5288 states have internal predecessors, (24943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:20,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 24943 transitions. [2022-03-15 15:35:20,649 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 24943 transitions. Word has length 29 [2022-03-15 15:35:20,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:20,649 INFO L470 AbstractCegarLoop]: Abstraction has 5289 states and 24943 transitions. [2022-03-15 15:35:20,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:20,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 24943 transitions. [2022-03-15 15:35:20,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:20,659 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:20,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:20,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1009 [2022-03-15 15:35:20,660 INFO L402 AbstractCegarLoop]: === Iteration 1011 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:20,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:20,660 INFO L85 PathProgramCache]: Analyzing trace with hash -122535737, now seen corresponding path program 1006 times [2022-03-15 15:35:20,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:20,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452036514] [2022-03-15 15:35:20,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:20,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:20,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:20,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:20,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452036514] [2022-03-15 15:35:20,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452036514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:20,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:20,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:20,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250397209] [2022-03-15 15:35:20,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:20,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:20,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:20,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:20,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:20,805 INFO L87 Difference]: Start difference. First operand 5289 states and 24943 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:20,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:20,994 INFO L93 Difference]: Finished difference Result 10997 states and 49287 transitions. [2022-03-15 15:35:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:20,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:20,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:21,028 INFO L225 Difference]: With dead ends: 10997 [2022-03-15 15:35:21,028 INFO L226 Difference]: Without dead ends: 10430 [2022-03-15 15:35:21,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:21,029 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 162 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:21,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 197 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:21,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10430 states. [2022-03-15 15:35:21,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10430 to 5185. [2022-03-15 15:35:21,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.726658950617284) internal successors, (24503), 5184 states have internal predecessors, (24503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:21,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24503 transitions. [2022-03-15 15:35:21,186 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24503 transitions. Word has length 29 [2022-03-15 15:35:21,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:21,186 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24503 transitions. [2022-03-15 15:35:21,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:21,186 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24503 transitions. [2022-03-15 15:35:21,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:21,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:21,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:21,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1010 [2022-03-15 15:35:21,197 INFO L402 AbstractCegarLoop]: === Iteration 1012 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:21,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:21,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1577379877, now seen corresponding path program 1007 times [2022-03-15 15:35:21,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:21,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037984612] [2022-03-15 15:35:21,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:21,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:21,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:21,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037984612] [2022-03-15 15:35:21,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037984612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:21,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:21,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:21,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826692939] [2022-03-15 15:35:21,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:21,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:21,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:21,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:21,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:21,368 INFO L87 Difference]: Start difference. First operand 5185 states and 24503 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:21,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:21,548 INFO L93 Difference]: Finished difference Result 11299 states and 50425 transitions. [2022-03-15 15:35:21,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:21,549 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:21,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:21,589 INFO L225 Difference]: With dead ends: 11299 [2022-03-15 15:35:21,589 INFO L226 Difference]: Without dead ends: 10822 [2022-03-15 15:35:21,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:21,589 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 167 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:21,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 223 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:21,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10822 states. [2022-03-15 15:35:21,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10822 to 5257. [2022-03-15 15:35:21,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 4.714421613394216) internal successors, (24779), 5256 states have internal predecessors, (24779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:21,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 24779 transitions. [2022-03-15 15:35:21,794 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 24779 transitions. Word has length 29 [2022-03-15 15:35:21,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:21,795 INFO L470 AbstractCegarLoop]: Abstraction has 5257 states and 24779 transitions. [2022-03-15 15:35:21,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:21,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 24779 transitions. [2022-03-15 15:35:21,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:21,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:21,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:21,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1011 [2022-03-15 15:35:21,806 INFO L402 AbstractCegarLoop]: === Iteration 1013 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:21,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:21,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1205169273, now seen corresponding path program 1008 times [2022-03-15 15:35:21,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:21,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25137045] [2022-03-15 15:35:21,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:21,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:21,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:21,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25137045] [2022-03-15 15:35:21,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25137045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:21,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:21,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:21,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877067377] [2022-03-15 15:35:21,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:21,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:21,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:21,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:21,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:21,928 INFO L87 Difference]: Start difference. First operand 5257 states and 24779 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:22,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:22,092 INFO L93 Difference]: Finished difference Result 10965 states and 49123 transitions. [2022-03-15 15:35:22,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:22,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:22,129 INFO L225 Difference]: With dead ends: 10965 [2022-03-15 15:35:22,129 INFO L226 Difference]: Without dead ends: 10334 [2022-03-15 15:35:22,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:22,130 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 164 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:22,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 195 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:22,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10334 states. [2022-03-15 15:35:22,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10334 to 5089. [2022-03-15 15:35:22,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.75373427672956) internal successors, (24187), 5088 states have internal predecessors, (24187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:22,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24187 transitions. [2022-03-15 15:35:22,282 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24187 transitions. Word has length 29 [2022-03-15 15:35:22,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:22,282 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24187 transitions. [2022-03-15 15:35:22,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:22,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24187 transitions. [2022-03-15 15:35:22,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:22,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:22,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:22,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1012 [2022-03-15 15:35:22,293 INFO L402 AbstractCegarLoop]: === Iteration 1014 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:22,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:22,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1157908677, now seen corresponding path program 1009 times [2022-03-15 15:35:22,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:22,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477473368] [2022-03-15 15:35:22,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:22,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:22,477 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:22,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477473368] [2022-03-15 15:35:22,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477473368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:22,477 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:22,478 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:22,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262891428] [2022-03-15 15:35:22,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:22,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:22,478 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:22,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:22,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:22,478 INFO L87 Difference]: Start difference. First operand 5089 states and 24187 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:22,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:22,675 INFO L93 Difference]: Finished difference Result 11077 states and 49447 transitions. [2022-03-15 15:35:22,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:22,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:22,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:22,707 INFO L225 Difference]: With dead ends: 11077 [2022-03-15 15:35:22,707 INFO L226 Difference]: Without dead ends: 10662 [2022-03-15 15:35:22,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:22,708 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 189 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:22,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 192 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:22,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10662 states. [2022-03-15 15:35:22,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10662 to 5217. [2022-03-15 15:35:22,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.745973926380368) internal successors, (24755), 5216 states have internal predecessors, (24755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:22,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24755 transitions. [2022-03-15 15:35:22,846 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24755 transitions. Word has length 29 [2022-03-15 15:35:22,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:22,846 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24755 transitions. [2022-03-15 15:35:22,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:22,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24755 transitions. [2022-03-15 15:35:22,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:22,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:22,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:22,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1013 [2022-03-15 15:35:22,856 INFO L402 AbstractCegarLoop]: === Iteration 1015 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:22,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:22,857 INFO L85 PathProgramCache]: Analyzing trace with hash 172704647, now seen corresponding path program 1010 times [2022-03-15 15:35:22,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:22,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477439800] [2022-03-15 15:35:22,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:22,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:23,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:23,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:23,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477439800] [2022-03-15 15:35:23,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477439800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:23,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:23,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:23,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558716006] [2022-03-15 15:35:23,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:23,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:23,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:23,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:23,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:23,024 INFO L87 Difference]: Start difference. First operand 5217 states and 24755 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:23,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:23,252 INFO L93 Difference]: Finished difference Result 11204 states and 49926 transitions. [2022-03-15 15:35:23,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:23,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:23,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:23,287 INFO L225 Difference]: With dead ends: 11204 [2022-03-15 15:35:23,287 INFO L226 Difference]: Without dead ends: 10582 [2022-03-15 15:35:23,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:23,287 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 160 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:23,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 240 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:23,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10582 states. [2022-03-15 15:35:23,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10582 to 5137. [2022-03-15 15:35:23,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.75136292834891) internal successors, (24403), 5136 states have internal predecessors, (24403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:23,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24403 transitions. [2022-03-15 15:35:23,442 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24403 transitions. Word has length 29 [2022-03-15 15:35:23,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:23,442 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24403 transitions. [2022-03-15 15:35:23,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:23,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24403 transitions. [2022-03-15 15:35:23,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:23,453 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:23,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:23,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1014 [2022-03-15 15:35:23,453 INFO L402 AbstractCegarLoop]: === Iteration 1016 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:23,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:23,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1242696675, now seen corresponding path program 1011 times [2022-03-15 15:35:23,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:23,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968991747] [2022-03-15 15:35:23,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:23,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:23,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:23,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:23,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968991747] [2022-03-15 15:35:23,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968991747] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:23,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:23,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:23,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812386403] [2022-03-15 15:35:23,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:23,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:23,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:23,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:23,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:23,650 INFO L87 Difference]: Start difference. First operand 5137 states and 24403 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:23,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:23,889 INFO L93 Difference]: Finished difference Result 10902 states and 48664 transitions. [2022-03-15 15:35:23,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:23,889 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:23,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:23,923 INFO L225 Difference]: With dead ends: 10902 [2022-03-15 15:35:23,923 INFO L226 Difference]: Without dead ends: 10487 [2022-03-15 15:35:23,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:23,924 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 178 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:23,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 216 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:23,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10487 states. [2022-03-15 15:35:24,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10487 to 5169. [2022-03-15 15:35:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.743614551083591) internal successors, (24515), 5168 states have internal predecessors, (24515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24515 transitions. [2022-03-15 15:35:24,077 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24515 transitions. Word has length 29 [2022-03-15 15:35:24,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:24,077 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24515 transitions. [2022-03-15 15:35:24,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:24,078 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24515 transitions. [2022-03-15 15:35:24,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:24,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:24,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:24,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1015 [2022-03-15 15:35:24,088 INFO L402 AbstractCegarLoop]: === Iteration 1017 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:24,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:24,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1910162589, now seen corresponding path program 1012 times [2022-03-15 15:35:24,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:24,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824258206] [2022-03-15 15:35:24,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:24,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:24,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:24,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:24,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824258206] [2022-03-15 15:35:24,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824258206] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:24,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:24,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:24,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460811451] [2022-03-15 15:35:24,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:24,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:24,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:24,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:24,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:24,272 INFO L87 Difference]: Start difference. First operand 5169 states and 24515 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:24,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:24,456 INFO L93 Difference]: Finished difference Result 10902 states and 48632 transitions. [2022-03-15 15:35:24,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:24,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:24,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:24,489 INFO L225 Difference]: With dead ends: 10902 [2022-03-15 15:35:24,489 INFO L226 Difference]: Without dead ends: 10455 [2022-03-15 15:35:24,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:24,490 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 164 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:24,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 209 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:24,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10455 states. [2022-03-15 15:35:24,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10455 to 5137. [2022-03-15 15:35:24,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.7482476635514015) internal successors, (24387), 5136 states have internal predecessors, (24387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:24,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24387 transitions. [2022-03-15 15:35:24,650 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24387 transitions. Word has length 29 [2022-03-15 15:35:24,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:24,650 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24387 transitions. [2022-03-15 15:35:24,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:24,650 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24387 transitions. [2022-03-15 15:35:24,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:24,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:24,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:24,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1016 [2022-03-15 15:35:24,661 INFO L402 AbstractCegarLoop]: === Iteration 1018 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:24,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:24,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1026076733, now seen corresponding path program 1013 times [2022-03-15 15:35:24,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:24,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819955070] [2022-03-15 15:35:24,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:24,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:24,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:24,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:24,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819955070] [2022-03-15 15:35:24,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819955070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:24,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:24,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:24,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654088040] [2022-03-15 15:35:24,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:24,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:24,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:24,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:24,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:24,911 INFO L87 Difference]: Start difference. First operand 5137 states and 24387 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:25,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:25,121 INFO L93 Difference]: Finished difference Result 11204 states and 49926 transitions. [2022-03-15 15:35:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:25,121 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:25,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:25,154 INFO L225 Difference]: With dead ends: 11204 [2022-03-15 15:35:25,154 INFO L226 Difference]: Without dead ends: 10662 [2022-03-15 15:35:25,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:25,154 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:25,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 245 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:25,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10662 states. [2022-03-15 15:35:25,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10662 to 5217. [2022-03-15 15:35:25,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.730636503067485) internal successors, (24675), 5216 states have internal predecessors, (24675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:25,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24675 transitions. [2022-03-15 15:35:25,307 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24675 transitions. Word has length 29 [2022-03-15 15:35:25,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:25,307 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24675 transitions. [2022-03-15 15:35:25,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:25,307 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24675 transitions. [2022-03-15 15:35:25,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:25,317 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:25,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:25,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1017 [2022-03-15 15:35:25,317 INFO L402 AbstractCegarLoop]: === Iteration 1019 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:25,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:25,317 INFO L85 PathProgramCache]: Analyzing trace with hash 819268767, now seen corresponding path program 1014 times [2022-03-15 15:35:25,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:25,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572301278] [2022-03-15 15:35:25,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:25,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:25,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:25,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:25,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572301278] [2022-03-15 15:35:25,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572301278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:25,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:25,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:25,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864384366] [2022-03-15 15:35:25,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:25,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:25,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:25,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:25,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:25,449 INFO L87 Difference]: Start difference. First operand 5217 states and 24675 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:25,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:25,611 INFO L93 Difference]: Finished difference Result 11077 states and 49319 transitions. [2022-03-15 15:35:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:25,611 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:25,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:25,645 INFO L225 Difference]: With dead ends: 11077 [2022-03-15 15:35:25,645 INFO L226 Difference]: Without dead ends: 10550 [2022-03-15 15:35:25,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:25,645 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 156 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:25,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 238 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:25,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10550 states. [2022-03-15 15:35:25,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10550 to 5105. [2022-03-15 15:35:25,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.752938871473354) internal successors, (24259), 5104 states have internal predecessors, (24259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24259 transitions. [2022-03-15 15:35:25,793 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24259 transitions. Word has length 29 [2022-03-15 15:35:25,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:25,793 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24259 transitions. [2022-03-15 15:35:25,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:25,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24259 transitions. [2022-03-15 15:35:25,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:25,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:25,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:25,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1018 [2022-03-15 15:35:25,804 INFO L402 AbstractCegarLoop]: === Iteration 1020 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:25,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:25,804 INFO L85 PathProgramCache]: Analyzing trace with hash 669803043, now seen corresponding path program 1015 times [2022-03-15 15:35:25,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:25,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673681324] [2022-03-15 15:35:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:25,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:25,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:25,912 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:25,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673681324] [2022-03-15 15:35:25,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673681324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:25,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:25,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:25,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044946381] [2022-03-15 15:35:25,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:25,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:25,913 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:25,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:25,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:25,913 INFO L87 Difference]: Start difference. First operand 5105 states and 24259 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:26,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:26,075 INFO L93 Difference]: Finished difference Result 11093 states and 49535 transitions. [2022-03-15 15:35:26,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:26,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:26,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:26,109 INFO L225 Difference]: With dead ends: 11093 [2022-03-15 15:35:26,109 INFO L226 Difference]: Without dead ends: 10678 [2022-03-15 15:35:26,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:26,110 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 186 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:26,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 195 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:26,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10678 states. [2022-03-15 15:35:26,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10678 to 5225. [2022-03-15 15:35:26,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.74406584992343) internal successors, (24783), 5224 states have internal predecessors, (24783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:26,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24783 transitions. [2022-03-15 15:35:26,259 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24783 transitions. Word has length 29 [2022-03-15 15:35:26,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:26,259 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24783 transitions. [2022-03-15 15:35:26,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:26,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24783 transitions. [2022-03-15 15:35:26,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:26,269 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:26,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:26,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1019 [2022-03-15 15:35:26,270 INFO L402 AbstractCegarLoop]: === Iteration 1021 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:26,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash -315400987, now seen corresponding path program 1016 times [2022-03-15 15:35:26,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:26,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365837153] [2022-03-15 15:35:26,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:26,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:26,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:26,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:26,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365837153] [2022-03-15 15:35:26,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365837153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:26,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:26,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:26,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797459078] [2022-03-15 15:35:26,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:26,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:26,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:26,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:26,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:26,377 INFO L87 Difference]: Start difference. First operand 5225 states and 24783 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:26,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:26,532 INFO L93 Difference]: Finished difference Result 11220 states and 50014 transitions. [2022-03-15 15:35:26,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:26,532 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:26,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:26,567 INFO L225 Difference]: With dead ends: 11220 [2022-03-15 15:35:26,567 INFO L226 Difference]: Without dead ends: 10598 [2022-03-15 15:35:26,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:26,567 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 189 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:26,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 198 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:26,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10598 states. [2022-03-15 15:35:26,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10598 to 5145. [2022-03-15 15:35:26,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.747861586314152) internal successors, (24423), 5144 states have internal predecessors, (24423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:26,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24423 transitions. [2022-03-15 15:35:26,719 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24423 transitions. Word has length 29 [2022-03-15 15:35:26,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:26,719 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24423 transitions. [2022-03-15 15:35:26,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:26,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24423 transitions. [2022-03-15 15:35:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:26,729 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:26,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:26,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1020 [2022-03-15 15:35:26,730 INFO L402 AbstractCegarLoop]: === Iteration 1022 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:26,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:26,730 INFO L85 PathProgramCache]: Analyzing trace with hash 71075171, now seen corresponding path program 1017 times [2022-03-15 15:35:26,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:26,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794008027] [2022-03-15 15:35:26,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:26,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:26,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:26,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794008027] [2022-03-15 15:35:26,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794008027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:26,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:26,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:26,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197528073] [2022-03-15 15:35:26,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:26,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:26,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:26,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:26,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:26,856 INFO L87 Difference]: Start difference. First operand 5145 states and 24423 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:27,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:27,014 INFO L93 Difference]: Finished difference Result 10886 states and 48648 transitions. [2022-03-15 15:35:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:27,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:27,048 INFO L225 Difference]: With dead ends: 10886 [2022-03-15 15:35:27,048 INFO L226 Difference]: Without dead ends: 10471 [2022-03-15 15:35:27,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:27,048 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 187 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:27,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 192 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:27,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10471 states. [2022-03-15 15:35:27,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10471 to 5193. [2022-03-15 15:35:27,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.73786594761171) internal successors, (24599), 5192 states have internal predecessors, (24599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:27,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24599 transitions. [2022-03-15 15:35:27,191 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24599 transitions. Word has length 29 [2022-03-15 15:35:27,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:27,191 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24599 transitions. [2022-03-15 15:35:27,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:27,192 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24599 transitions. [2022-03-15 15:35:27,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:27,202 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:27,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:27,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1021 [2022-03-15 15:35:27,202 INFO L402 AbstractCegarLoop]: === Iteration 1023 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:27,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:27,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2132641733, now seen corresponding path program 1018 times [2022-03-15 15:35:27,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:27,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962021209] [2022-03-15 15:35:27,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:27,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:27,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:27,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:27,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962021209] [2022-03-15 15:35:27,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962021209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:27,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:27,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:27,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936598605] [2022-03-15 15:35:27,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:27,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:27,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:27,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:27,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:27,317 INFO L87 Difference]: Start difference. First operand 5193 states and 24599 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:27,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:27,484 INFO L93 Difference]: Finished difference Result 10614 states and 47639 transitions. [2022-03-15 15:35:27,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:27,485 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:27,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:27,516 INFO L225 Difference]: With dead ends: 10614 [2022-03-15 15:35:27,516 INFO L226 Difference]: Without dead ends: 10103 [2022-03-15 15:35:27,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:27,517 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 154 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:27,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 218 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:27,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2022-03-15 15:35:27,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 5145. [2022-03-15 15:35:27,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.743195956454121) internal successors, (24399), 5144 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:27,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24399 transitions. [2022-03-15 15:35:27,659 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24399 transitions. Word has length 29 [2022-03-15 15:35:27,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:27,659 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24399 transitions. [2022-03-15 15:35:27,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:27,659 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24399 transitions. [2022-03-15 15:35:27,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:27,669 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:27,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:27,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1022 [2022-03-15 15:35:27,670 INFO L402 AbstractCegarLoop]: === Iteration 1024 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:27,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:27,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1178348039, now seen corresponding path program 1019 times [2022-03-15 15:35:27,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:27,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194399686] [2022-03-15 15:35:27,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:27,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:27,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:27,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:27,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194399686] [2022-03-15 15:35:27,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194399686] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:27,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:27,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:27,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217951291] [2022-03-15 15:35:27,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:27,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:27,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:27,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:27,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:27,808 INFO L87 Difference]: Start difference. First operand 5145 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:28,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:28,025 INFO L93 Difference]: Finished difference Result 11069 states and 49419 transitions. [2022-03-15 15:35:28,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:28,025 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:28,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:28,058 INFO L225 Difference]: With dead ends: 11069 [2022-03-15 15:35:28,059 INFO L226 Difference]: Without dead ends: 10527 [2022-03-15 15:35:28,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:28,059 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:28,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 212 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:28,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10527 states. [2022-03-15 15:35:28,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10527 to 5249. [2022-03-15 15:35:28,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.723132621951219) internal successors, (24787), 5248 states have internal predecessors, (24787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:28,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24787 transitions. [2022-03-15 15:35:28,207 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24787 transitions. Word has length 29 [2022-03-15 15:35:28,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:28,207 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 24787 transitions. [2022-03-15 15:35:28,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:28,207 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24787 transitions. [2022-03-15 15:35:28,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:28,217 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:28,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:28,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1023 [2022-03-15 15:35:28,217 INFO L402 AbstractCegarLoop]: === Iteration 1025 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:28,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:28,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1739780837, now seen corresponding path program 1020 times [2022-03-15 15:35:28,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:28,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311774772] [2022-03-15 15:35:28,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:28,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:28,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:28,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:28,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311774772] [2022-03-15 15:35:28,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311774772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:28,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:28,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:28,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905970376] [2022-03-15 15:35:28,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:28,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:28,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:28,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:28,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:28,409 INFO L87 Difference]: Start difference. First operand 5249 states and 24787 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:28,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:28,628 INFO L93 Difference]: Finished difference Result 10670 states and 47827 transitions. [2022-03-15 15:35:28,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:28,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:28,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:28,660 INFO L225 Difference]: With dead ends: 10670 [2022-03-15 15:35:28,661 INFO L226 Difference]: Without dead ends: 10063 [2022-03-15 15:35:28,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:28,661 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 145 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:28,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 231 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:28,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10063 states. [2022-03-15 15:35:28,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10063 to 5105. [2022-03-15 15:35:28,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.74980407523511) internal successors, (24243), 5104 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24243 transitions. [2022-03-15 15:35:28,804 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24243 transitions. Word has length 29 [2022-03-15 15:35:28,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:28,804 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24243 transitions. [2022-03-15 15:35:28,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:28,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24243 transitions. [2022-03-15 15:35:28,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:28,815 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:28,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:28,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1024 [2022-03-15 15:35:28,815 INFO L402 AbstractCegarLoop]: === Iteration 1026 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:28,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:28,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1540016385, now seen corresponding path program 1021 times [2022-03-15 15:35:28,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:28,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964734434] [2022-03-15 15:35:28,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:28,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:28,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:28,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:28,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964734434] [2022-03-15 15:35:28,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964734434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:28,946 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:28,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:28,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714477126] [2022-03-15 15:35:28,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:28,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:28,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:28,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:28,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:28,947 INFO L87 Difference]: Start difference. First operand 5105 states and 24243 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:29,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:29,113 INFO L93 Difference]: Finished difference Result 10711 states and 47849 transitions. [2022-03-15 15:35:29,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:29,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:29,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:29,146 INFO L225 Difference]: With dead ends: 10711 [2022-03-15 15:35:29,146 INFO L226 Difference]: Without dead ends: 10296 [2022-03-15 15:35:29,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:29,147 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 166 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:29,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 207 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:29,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10296 states. [2022-03-15 15:35:29,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10296 to 5153. [2022-03-15 15:35:29,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.742818322981367) internal successors, (24435), 5152 states have internal predecessors, (24435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:29,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24435 transitions. [2022-03-15 15:35:29,287 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24435 transitions. Word has length 29 [2022-03-15 15:35:29,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:29,287 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24435 transitions. [2022-03-15 15:35:29,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:29,287 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24435 transitions. [2022-03-15 15:35:29,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:29,297 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:29,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:29,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1025 [2022-03-15 15:35:29,298 INFO L402 AbstractCegarLoop]: === Iteration 1027 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:29,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:29,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2087484997, now seen corresponding path program 1022 times [2022-03-15 15:35:29,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:29,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548712988] [2022-03-15 15:35:29,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:29,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:29,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:29,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:29,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548712988] [2022-03-15 15:35:29,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548712988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:29,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:29,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:29,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744471002] [2022-03-15 15:35:29,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:29,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:29,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:29,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:29,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:29,414 INFO L87 Difference]: Start difference. First operand 5153 states and 24435 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:29,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:29,569 INFO L93 Difference]: Finished difference Result 10711 states and 47817 transitions. [2022-03-15 15:35:29,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:29,569 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:29,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:29,600 INFO L225 Difference]: With dead ends: 10711 [2022-03-15 15:35:29,600 INFO L226 Difference]: Without dead ends: 10264 [2022-03-15 15:35:29,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:29,601 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 165 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:29,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 219 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:29,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10264 states. [2022-03-15 15:35:29,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10264 to 5121. [2022-03-15 15:35:29,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7474609375) internal successors, (24307), 5120 states have internal predecessors, (24307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:29,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24307 transitions. [2022-03-15 15:35:29,741 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24307 transitions. Word has length 29 [2022-03-15 15:35:29,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:29,741 INFO L470 AbstractCegarLoop]: Abstraction has 5121 states and 24307 transitions. [2022-03-15 15:35:29,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:29,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24307 transitions. [2022-03-15 15:35:29,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:29,751 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:29,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:29,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1026 [2022-03-15 15:35:29,751 INFO L402 AbstractCegarLoop]: === Iteration 1028 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:29,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:29,752 INFO L85 PathProgramCache]: Analyzing trace with hash -327000989, now seen corresponding path program 1023 times [2022-03-15 15:35:29,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:29,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122884903] [2022-03-15 15:35:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:29,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:29,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:29,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:29,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122884903] [2022-03-15 15:35:29,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122884903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:29,879 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:29,879 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:29,879 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904234372] [2022-03-15 15:35:29,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:29,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:29,879 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:29,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:29,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:29,880 INFO L87 Difference]: Start difference. First operand 5121 states and 24307 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:30,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:30,131 INFO L93 Difference]: Finished difference Result 10679 states and 47737 transitions. [2022-03-15 15:35:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:30,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:30,164 INFO L225 Difference]: With dead ends: 10679 [2022-03-15 15:35:30,164 INFO L226 Difference]: Without dead ends: 10264 [2022-03-15 15:35:30,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:30,164 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 143 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:30,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 277 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:35:30,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10264 states. [2022-03-15 15:35:30,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10264 to 5169. [2022-03-15 15:35:30,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.737422600619195) internal successors, (24483), 5168 states have internal predecessors, (24483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:30,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24483 transitions. [2022-03-15 15:35:30,309 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24483 transitions. Word has length 29 [2022-03-15 15:35:30,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:30,309 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24483 transitions. [2022-03-15 15:35:30,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24483 transitions. [2022-03-15 15:35:30,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:30,319 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:30,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:30,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1027 [2022-03-15 15:35:30,319 INFO L402 AbstractCegarLoop]: === Iteration 1029 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:30,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:30,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2009529187, now seen corresponding path program 1024 times [2022-03-15 15:35:30,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:30,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3359235] [2022-03-15 15:35:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:30,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:30,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:30,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:30,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3359235] [2022-03-15 15:35:30,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3359235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:30,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:30,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:30,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459990432] [2022-03-15 15:35:30,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:30,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:30,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:30,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:30,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:30,481 INFO L87 Difference]: Start difference. First operand 5169 states and 24483 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:30,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:30,689 INFO L93 Difference]: Finished difference Result 10407 states and 46728 transitions. [2022-03-15 15:35:30,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:30,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:30,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:30,719 INFO L225 Difference]: With dead ends: 10407 [2022-03-15 15:35:30,719 INFO L226 Difference]: Without dead ends: 9896 [2022-03-15 15:35:30,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:30,719 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 148 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:30,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 218 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:30,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9896 states. [2022-03-15 15:35:30,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9896 to 5121. [2022-03-15 15:35:30,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7443359375) internal successors, (24291), 5120 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:30,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24291 transitions. [2022-03-15 15:35:30,844 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24291 transitions. Word has length 29 [2022-03-15 15:35:30,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:30,844 INFO L470 AbstractCegarLoop]: Abstraction has 5121 states and 24291 transitions. [2022-03-15 15:35:30,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:30,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24291 transitions. [2022-03-15 15:35:30,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:30,854 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:30,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:30,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1028 [2022-03-15 15:35:30,854 INFO L402 AbstractCegarLoop]: === Iteration 1030 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:30,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:30,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1847894469, now seen corresponding path program 1025 times [2022-03-15 15:35:30,855 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:30,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554283173] [2022-03-15 15:35:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:30,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:31,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:31,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:31,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554283173] [2022-03-15 15:35:31,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554283173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:31,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:31,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:31,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164662031] [2022-03-15 15:35:31,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:31,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:31,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:31,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:31,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:31,017 INFO L87 Difference]: Start difference. First operand 5121 states and 24291 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:31,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:31,210 INFO L93 Difference]: Finished difference Result 10679 states and 47721 transitions. [2022-03-15 15:35:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:31,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:31,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:31,244 INFO L225 Difference]: With dead ends: 10679 [2022-03-15 15:35:31,244 INFO L226 Difference]: Without dead ends: 10264 [2022-03-15 15:35:31,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:31,245 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 159 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:31,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 242 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:31,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10264 states. [2022-03-15 15:35:31,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10264 to 5169. [2022-03-15 15:35:31,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.734326625386997) internal successors, (24467), 5168 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:31,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24467 transitions. [2022-03-15 15:35:31,396 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24467 transitions. Word has length 29 [2022-03-15 15:35:31,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:31,396 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24467 transitions. [2022-03-15 15:35:31,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:31,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24467 transitions. [2022-03-15 15:35:31,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:31,407 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:31,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:31,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1029 [2022-03-15 15:35:31,407 INFO L402 AbstractCegarLoop]: === Iteration 1031 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:31,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:31,407 INFO L85 PathProgramCache]: Analyzing trace with hash 952394269, now seen corresponding path program 1026 times [2022-03-15 15:35:31,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:31,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959705636] [2022-03-15 15:35:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:31,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:31,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:31,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:31,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959705636] [2022-03-15 15:35:31,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959705636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:31,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:31,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:31,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153719004] [2022-03-15 15:35:31,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:31,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:31,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:31,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:31,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:31,577 INFO L87 Difference]: Start difference. First operand 5169 states and 24467 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:31,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:31,769 INFO L93 Difference]: Finished difference Result 10407 states and 46712 transitions. [2022-03-15 15:35:31,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:31,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:31,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:31,802 INFO L225 Difference]: With dead ends: 10407 [2022-03-15 15:35:31,802 INFO L226 Difference]: Without dead ends: 9880 [2022-03-15 15:35:31,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:31,802 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 148 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:31,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 206 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:31,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9880 states. [2022-03-15 15:35:31,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9880 to 5105. [2022-03-15 15:35:31,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.748236677115988) internal successors, (24235), 5104 states have internal predecessors, (24235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:31,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24235 transitions. [2022-03-15 15:35:31,950 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24235 transitions. Word has length 29 [2022-03-15 15:35:31,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:31,950 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24235 transitions. [2022-03-15 15:35:31,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:31,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24235 transitions. [2022-03-15 15:35:31,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:31,961 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:31,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:31,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1030 [2022-03-15 15:35:31,961 INFO L402 AbstractCegarLoop]: === Iteration 1032 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:31,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:31,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1383103067, now seen corresponding path program 1027 times [2022-03-15 15:35:31,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:31,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416510443] [2022-03-15 15:35:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:31,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:32,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:32,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:32,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416510443] [2022-03-15 15:35:32,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416510443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:32,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:32,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:32,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665209950] [2022-03-15 15:35:32,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:32,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:32,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:32,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:32,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:32,118 INFO L87 Difference]: Start difference. First operand 5105 states and 24235 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:32,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:32,280 INFO L93 Difference]: Finished difference Result 11220 states and 50038 transitions. [2022-03-15 15:35:32,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:32,280 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:32,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:32,315 INFO L225 Difference]: With dead ends: 11220 [2022-03-15 15:35:32,315 INFO L226 Difference]: Without dead ends: 10678 [2022-03-15 15:35:32,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:32,315 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 172 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:32,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 197 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:32,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10678 states. [2022-03-15 15:35:32,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10678 to 5225. [2022-03-15 15:35:32,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.733346094946401) internal successors, (24727), 5224 states have internal predecessors, (24727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:32,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24727 transitions. [2022-03-15 15:35:32,473 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24727 transitions. Word has length 29 [2022-03-15 15:35:32,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:32,473 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24727 transitions. [2022-03-15 15:35:32,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:32,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24727 transitions. [2022-03-15 15:35:32,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:32,483 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:32,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:32,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1031 [2022-03-15 15:35:32,484 INFO L402 AbstractCegarLoop]: === Iteration 1033 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:32,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:32,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1176295101, now seen corresponding path program 1028 times [2022-03-15 15:35:32,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:32,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787903937] [2022-03-15 15:35:32,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:32,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:32,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:32,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:32,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787903937] [2022-03-15 15:35:32,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787903937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:32,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:32,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:32,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011361953] [2022-03-15 15:35:32,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:32,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:32,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:32,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:32,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:32,591 INFO L87 Difference]: Start difference. First operand 5225 states and 24727 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:32,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:32,756 INFO L93 Difference]: Finished difference Result 11093 states and 49431 transitions. [2022-03-15 15:35:32,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:32,756 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:32,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:32,791 INFO L225 Difference]: With dead ends: 11093 [2022-03-15 15:35:32,791 INFO L226 Difference]: Without dead ends: 10598 [2022-03-15 15:35:32,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:32,791 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 162 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:32,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 217 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:32,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10598 states. [2022-03-15 15:35:32,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10598 to 5145. [2022-03-15 15:35:32,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.743195956454121) internal successors, (24399), 5144 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:32,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24399 transitions. [2022-03-15 15:35:32,948 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24399 transitions. Word has length 29 [2022-03-15 15:35:32,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:32,948 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24399 transitions. [2022-03-15 15:35:32,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:32,948 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24399 transitions. [2022-03-15 15:35:32,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:32,959 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:32,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:32,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1032 [2022-03-15 15:35:32,959 INFO L402 AbstractCegarLoop]: === Iteration 1034 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:32,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:32,959 INFO L85 PathProgramCache]: Analyzing trace with hash -483914307, now seen corresponding path program 1029 times [2022-03-15 15:35:32,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:32,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523185139] [2022-03-15 15:35:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:32,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:33,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:33,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:33,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523185139] [2022-03-15 15:35:33,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523185139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:33,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:33,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:33,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456161815] [2022-03-15 15:35:33,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:33,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:33,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:33,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:33,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:33,095 INFO L87 Difference]: Start difference. First operand 5145 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:33,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:33,294 INFO L93 Difference]: Finished difference Result 11069 states and 49419 transitions. [2022-03-15 15:35:33,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:33,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:33,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:33,328 INFO L225 Difference]: With dead ends: 11069 [2022-03-15 15:35:33,328 INFO L226 Difference]: Without dead ends: 10527 [2022-03-15 15:35:33,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:33,328 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 149 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:33,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 237 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:33,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10527 states. [2022-03-15 15:35:33,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10527 to 5249. [2022-03-15 15:35:33,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.723132621951219) internal successors, (24787), 5248 states have internal predecessors, (24787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:33,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24787 transitions. [2022-03-15 15:35:33,476 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24787 transitions. Word has length 29 [2022-03-15 15:35:33,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:33,476 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 24787 transitions. [2022-03-15 15:35:33,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:33,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24787 transitions. [2022-03-15 15:35:33,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:33,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:33,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:33,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1033 [2022-03-15 15:35:33,487 INFO L402 AbstractCegarLoop]: === Iteration 1035 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:33,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:33,487 INFO L85 PathProgramCache]: Analyzing trace with hash 15596861, now seen corresponding path program 1030 times [2022-03-15 15:35:33,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:33,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486461889] [2022-03-15 15:35:33,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:33,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:33,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:33,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:33,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486461889] [2022-03-15 15:35:33,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486461889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:33,624 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:33,624 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:33,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568564654] [2022-03-15 15:35:33,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:33,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:33,625 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:33,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:33,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:33,625 INFO L87 Difference]: Start difference. First operand 5249 states and 24787 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:33,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:33,839 INFO L93 Difference]: Finished difference Result 10670 states and 47827 transitions. [2022-03-15 15:35:33,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:33,839 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:33,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:33,872 INFO L225 Difference]: With dead ends: 10670 [2022-03-15 15:35:33,873 INFO L226 Difference]: Without dead ends: 10103 [2022-03-15 15:35:33,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:33,873 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 150 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:33,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 228 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:33,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10103 states. [2022-03-15 15:35:34,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10103 to 5145. [2022-03-15 15:35:34,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.735419906687403) internal successors, (24359), 5144 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:34,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24359 transitions. [2022-03-15 15:35:34,028 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24359 transitions. Word has length 29 [2022-03-15 15:35:34,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:34,028 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24359 transitions. [2022-03-15 15:35:34,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:34,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24359 transitions. [2022-03-15 15:35:34,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:34,041 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:34,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:34,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1034 [2022-03-15 15:35:34,041 INFO L402 AbstractCegarLoop]: === Iteration 1036 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:34,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:34,041 INFO L85 PathProgramCache]: Analyzing trace with hash -2076837601, now seen corresponding path program 1031 times [2022-03-15 15:35:34,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:34,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063544868] [2022-03-15 15:35:34,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:34,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:34,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:34,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:34,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063544868] [2022-03-15 15:35:34,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063544868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:34,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:34,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:34,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97382456] [2022-03-15 15:35:34,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:34,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:34,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:34,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:34,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:34,154 INFO L87 Difference]: Start difference. First operand 5145 states and 24359 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:34,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:34,332 INFO L93 Difference]: Finished difference Result 10886 states and 48584 transitions. [2022-03-15 15:35:34,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:34,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:34,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:34,366 INFO L225 Difference]: With dead ends: 10886 [2022-03-15 15:35:34,366 INFO L226 Difference]: Without dead ends: 10471 [2022-03-15 15:35:34,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:34,366 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 157 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:34,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 238 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:34,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10471 states. [2022-03-15 15:35:34,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10471 to 5193. [2022-03-15 15:35:34,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.725539291217257) internal successors, (24535), 5192 states have internal predecessors, (24535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:34,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24535 transitions. [2022-03-15 15:35:34,513 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24535 transitions. Word has length 29 [2022-03-15 15:35:34,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:34,513 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24535 transitions. [2022-03-15 15:35:34,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:34,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24535 transitions. [2022-03-15 15:35:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:34,523 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:34,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:34,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1035 [2022-03-15 15:35:34,523 INFO L402 AbstractCegarLoop]: === Iteration 1037 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:34,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:34,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1167232643, now seen corresponding path program 1032 times [2022-03-15 15:35:34,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:34,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205692083] [2022-03-15 15:35:34,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:34,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:34,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:34,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:34,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205692083] [2022-03-15 15:35:34,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205692083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:34,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:34,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:34,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889561237] [2022-03-15 15:35:34,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:34,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:34,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:34,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:34,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:34,681 INFO L87 Difference]: Start difference. First operand 5193 states and 24535 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:34,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:34,894 INFO L93 Difference]: Finished difference Result 10614 states and 47575 transitions. [2022-03-15 15:35:34,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:34,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:34,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:34,926 INFO L225 Difference]: With dead ends: 10614 [2022-03-15 15:35:34,926 INFO L226 Difference]: Without dead ends: 10047 [2022-03-15 15:35:34,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:34,926 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 148 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:34,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 201 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:34,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10047 states. [2022-03-15 15:35:35,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10047 to 5089. [2022-03-15 15:35:35,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.752161949685535) internal successors, (24179), 5088 states have internal predecessors, (24179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:35,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24179 transitions. [2022-03-15 15:35:35,070 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24179 transitions. Word has length 29 [2022-03-15 15:35:35,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:35,070 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24179 transitions. [2022-03-15 15:35:35,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:35,071 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24179 transitions. [2022-03-15 15:35:35,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:35,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:35,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:35,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1036 [2022-03-15 15:35:35,081 INFO L402 AbstractCegarLoop]: === Iteration 1038 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:35,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:35,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1890586625, now seen corresponding path program 1033 times [2022-03-15 15:35:35,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:35,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093213282] [2022-03-15 15:35:35,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:35,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:35,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:35,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:35,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093213282] [2022-03-15 15:35:35,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093213282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:35,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:35,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:35,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746975841] [2022-03-15 15:35:35,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:35,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:35,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:35,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:35,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:35,270 INFO L87 Difference]: Start difference. First operand 5089 states and 24179 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:35,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:35,481 INFO L93 Difference]: Finished difference Result 10634 states and 47517 transitions. [2022-03-15 15:35:35,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:35,481 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:35,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:35,513 INFO L225 Difference]: With dead ends: 10634 [2022-03-15 15:35:35,513 INFO L226 Difference]: Without dead ends: 10219 [2022-03-15 15:35:35,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:35,513 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 169 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:35,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 219 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:35,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10219 states. [2022-03-15 15:35:35,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10219 to 5161. [2022-03-15 15:35:35,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.743992248062016) internal successors, (24479), 5160 states have internal predecessors, (24479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:35,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24479 transitions. [2022-03-15 15:35:35,655 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24479 transitions. Word has length 29 [2022-03-15 15:35:35,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:35,655 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24479 transitions. [2022-03-15 15:35:35,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:35,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24479 transitions. [2022-03-15 15:35:35,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:35,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:35,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:35,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1037 [2022-03-15 15:35:35,665 INFO L402 AbstractCegarLoop]: === Iteration 1039 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:35,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:35,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2119873635, now seen corresponding path program 1034 times [2022-03-15 15:35:35,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:35,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999492616] [2022-03-15 15:35:35,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:35,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:35,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:35,819 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:35,819 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999492616] [2022-03-15 15:35:35,819 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999492616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:35,819 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:35,819 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:35,819 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743824137] [2022-03-15 15:35:35,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:35,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:35,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:35,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:35,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:35,820 INFO L87 Difference]: Start difference. First operand 5161 states and 24479 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:36,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:36,027 INFO L93 Difference]: Finished difference Result 10696 states and 47738 transitions. [2022-03-15 15:35:36,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:36,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:36,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:36,060 INFO L225 Difference]: With dead ends: 10696 [2022-03-15 15:35:36,060 INFO L226 Difference]: Without dead ends: 10171 [2022-03-15 15:35:36,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:36,060 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 163 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:36,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 208 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:36,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10171 states. [2022-03-15 15:35:36,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10171 to 5113. [2022-03-15 15:35:36,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.750978090766823) internal successors, (24287), 5112 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:36,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24287 transitions. [2022-03-15 15:35:36,203 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24287 transitions. Word has length 29 [2022-03-15 15:35:36,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:36,203 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24287 transitions. [2022-03-15 15:35:36,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:36,203 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24287 transitions. [2022-03-15 15:35:36,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:36,213 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:36,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:36,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1038 [2022-03-15 15:35:36,213 INFO L402 AbstractCegarLoop]: === Iteration 1040 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:36,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:36,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1409684579, now seen corresponding path program 1035 times [2022-03-15 15:35:36,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:36,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125807400] [2022-03-15 15:35:36,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:36,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:36,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:36,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:36,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125807400] [2022-03-15 15:35:36,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125807400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:36,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:36,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:36,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616674054] [2022-03-15 15:35:36,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:36,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:36,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:36,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:36,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:36,373 INFO L87 Difference]: Start difference. First operand 5113 states and 24287 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:36,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:36,551 INFO L93 Difference]: Finished difference Result 10556 states and 47152 transitions. [2022-03-15 15:35:36,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:36,551 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:36,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:36,586 INFO L225 Difference]: With dead ends: 10556 [2022-03-15 15:35:36,586 INFO L226 Difference]: Without dead ends: 10141 [2022-03-15 15:35:36,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:36,586 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 182 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:36,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 199 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:36,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10141 states. [2022-03-15 15:35:36,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10141 to 5145. [2022-03-15 15:35:36,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.743195956454121) internal successors, (24399), 5144 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:36,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24399 transitions. [2022-03-15 15:35:36,770 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24399 transitions. Word has length 29 [2022-03-15 15:35:36,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:36,770 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24399 transitions. [2022-03-15 15:35:36,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:36,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24399 transitions. [2022-03-15 15:35:36,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:36,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:36,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:36,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1039 [2022-03-15 15:35:36,783 INFO L402 AbstractCegarLoop]: === Iteration 1041 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:36,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash 595712187, now seen corresponding path program 1036 times [2022-03-15 15:35:36,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:36,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064297286] [2022-03-15 15:35:36,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:36,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:36,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:36,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:36,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064297286] [2022-03-15 15:35:36,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064297286] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:36,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:36,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:36,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952210887] [2022-03-15 15:35:36,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:36,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:36,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:36,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:36,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:36,929 INFO L87 Difference]: Start difference. First operand 5145 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:37,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:37,100 INFO L93 Difference]: Finished difference Result 10556 states and 47120 transitions. [2022-03-15 15:35:37,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:37,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:37,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:37,133 INFO L225 Difference]: With dead ends: 10556 [2022-03-15 15:35:37,133 INFO L226 Difference]: Without dead ends: 10109 [2022-03-15 15:35:37,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:37,134 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 163 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:37,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 223 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:37,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10109 states. [2022-03-15 15:35:37,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10109 to 5113. [2022-03-15 15:35:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.747848200312989) internal successors, (24271), 5112 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:37,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24271 transitions. [2022-03-15 15:35:37,283 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24271 transitions. Word has length 29 [2022-03-15 15:35:37,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:37,283 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24271 transitions. [2022-03-15 15:35:37,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:37,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24271 transitions. [2022-03-15 15:35:37,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:37,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:37,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:37,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1040 [2022-03-15 15:35:37,294 INFO L402 AbstractCegarLoop]: === Iteration 1042 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:37,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:37,294 INFO L85 PathProgramCache]: Analyzing trace with hash 731407675, now seen corresponding path program 1037 times [2022-03-15 15:35:37,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:37,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588875095] [2022-03-15 15:35:37,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:37,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:37,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:37,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:37,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588875095] [2022-03-15 15:35:37,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588875095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:37,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:37,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:37,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216792259] [2022-03-15 15:35:37,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:37,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:37,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:37,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:37,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:37,473 INFO L87 Difference]: Start difference. First operand 5113 states and 24271 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:37,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:37,703 INFO L93 Difference]: Finished difference Result 10696 states and 47754 transitions. [2022-03-15 15:35:37,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:37,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:37,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:37,737 INFO L225 Difference]: With dead ends: 10696 [2022-03-15 15:35:37,737 INFO L226 Difference]: Without dead ends: 10219 [2022-03-15 15:35:37,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:37,737 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 154 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:37,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 241 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:37,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10219 states. [2022-03-15 15:35:37,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10219 to 5161. [2022-03-15 15:35:37,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.737790697674418) internal successors, (24447), 5160 states have internal predecessors, (24447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:37,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24447 transitions. [2022-03-15 15:35:37,891 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24447 transitions. Word has length 29 [2022-03-15 15:35:37,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:37,891 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24447 transitions. [2022-03-15 15:35:37,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:37,891 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24447 transitions. [2022-03-15 15:35:37,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:37,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:37,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:37,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1041 [2022-03-15 15:35:37,902 INFO L402 AbstractCegarLoop]: === Iteration 1043 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:37,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:37,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1812470301, now seen corresponding path program 1038 times [2022-03-15 15:35:37,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:37,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49157368] [2022-03-15 15:35:37,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:37,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:38,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:38,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:38,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49157368] [2022-03-15 15:35:38,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49157368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:38,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:38,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:38,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929088982] [2022-03-15 15:35:38,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:38,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:38,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:38,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:38,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:38,070 INFO L87 Difference]: Start difference. First operand 5161 states and 24447 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:38,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:38,246 INFO L93 Difference]: Finished difference Result 10634 states and 47437 transitions. [2022-03-15 15:35:38,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:38,246 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:38,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:38,277 INFO L225 Difference]: With dead ends: 10634 [2022-03-15 15:35:38,278 INFO L226 Difference]: Without dead ends: 10155 [2022-03-15 15:35:38,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:38,278 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 146 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:38,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 237 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:38,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10155 states. [2022-03-15 15:35:38,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10155 to 5097. [2022-03-15 15:35:38,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 4.751766091051805) internal successors, (24215), 5096 states have internal predecessors, (24215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 24215 transitions. [2022-03-15 15:35:38,412 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 24215 transitions. Word has length 29 [2022-03-15 15:35:38,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:38,412 INFO L470 AbstractCegarLoop]: Abstraction has 5097 states and 24215 transitions. [2022-03-15 15:35:38,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:38,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 24215 transitions. [2022-03-15 15:35:38,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:38,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:38,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:38,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1042 [2022-03-15 15:35:38,422 INFO L402 AbstractCegarLoop]: === Iteration 1044 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:38,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:38,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1311747357, now seen corresponding path program 1039 times [2022-03-15 15:35:38,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:38,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427593942] [2022-03-15 15:35:38,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:38,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:38,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:38,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:38,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427593942] [2022-03-15 15:35:38,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427593942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:38,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:38,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:38,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004434355] [2022-03-15 15:35:38,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:38,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:38,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:38,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:38,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:38,607 INFO L87 Difference]: Start difference. First operand 5097 states and 24215 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:38,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:38,838 INFO L93 Difference]: Finished difference Result 10682 states and 47757 transitions. [2022-03-15 15:35:38,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:38,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:38,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:38,868 INFO L225 Difference]: With dead ends: 10682 [2022-03-15 15:35:38,868 INFO L226 Difference]: Without dead ends: 10267 [2022-03-15 15:35:38,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:38,868 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 169 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:38,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 213 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:38,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10267 states. [2022-03-15 15:35:38,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10267 to 5169. [2022-03-15 15:35:38,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.743614551083591) internal successors, (24515), 5168 states have internal predecessors, (24515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:38,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24515 transitions. [2022-03-15 15:35:38,996 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24515 transitions. Word has length 29 [2022-03-15 15:35:38,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:38,996 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24515 transitions. [2022-03-15 15:35:38,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:38,996 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24515 transitions. [2022-03-15 15:35:39,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:39,006 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:39,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:39,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1043 [2022-03-15 15:35:39,006 INFO L402 AbstractCegarLoop]: === Iteration 1045 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:39,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:39,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1082460347, now seen corresponding path program 1040 times [2022-03-15 15:35:39,006 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:39,006 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950184654] [2022-03-15 15:35:39,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:39,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:39,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:39,247 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:39,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950184654] [2022-03-15 15:35:39,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950184654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:39,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:39,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:39,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307429505] [2022-03-15 15:35:39,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:39,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:39,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:39,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:39,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:39,248 INFO L87 Difference]: Start difference. First operand 5169 states and 24515 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:39,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:39,472 INFO L93 Difference]: Finished difference Result 10744 states and 47978 transitions. [2022-03-15 15:35:39,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:39,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:39,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:39,505 INFO L225 Difference]: With dead ends: 10744 [2022-03-15 15:35:39,505 INFO L226 Difference]: Without dead ends: 10219 [2022-03-15 15:35:39,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:39,505 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 160 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:39,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 232 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:39,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10219 states. [2022-03-15 15:35:39,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10219 to 5121. [2022-03-15 15:35:39,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7490234375) internal successors, (24315), 5120 states have internal predecessors, (24315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:39,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24315 transitions. [2022-03-15 15:35:39,645 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24315 transitions. Word has length 29 [2022-03-15 15:35:39,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:39,645 INFO L470 AbstractCegarLoop]: Abstraction has 5121 states and 24315 transitions. [2022-03-15 15:35:39,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:39,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24315 transitions. [2022-03-15 15:35:39,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:39,655 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:39,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:39,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1044 [2022-03-15 15:35:39,655 INFO L402 AbstractCegarLoop]: === Iteration 1046 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:39,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:39,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1624794397, now seen corresponding path program 1041 times [2022-03-15 15:35:39,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:39,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227074118] [2022-03-15 15:35:39,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:39,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:39,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:39,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:39,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227074118] [2022-03-15 15:35:39,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227074118] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:39,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:39,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:39,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548563505] [2022-03-15 15:35:39,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:39,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:39,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:39,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:39,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:39,822 INFO L87 Difference]: Start difference. First operand 5121 states and 24315 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:40,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:40,031 INFO L93 Difference]: Finished difference Result 10572 states and 47288 transitions. [2022-03-15 15:35:40,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:40,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:40,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:40,063 INFO L225 Difference]: With dead ends: 10572 [2022-03-15 15:35:40,064 INFO L226 Difference]: Without dead ends: 10157 [2022-03-15 15:35:40,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:40,064 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 159 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:40,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 213 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:40,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10157 states. [2022-03-15 15:35:40,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10157 to 5169. [2022-03-15 15:35:40,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.738970588235294) internal successors, (24491), 5168 states have internal predecessors, (24491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:40,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24491 transitions. [2022-03-15 15:35:40,215 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24491 transitions. Word has length 29 [2022-03-15 15:35:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:40,215 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24491 transitions. [2022-03-15 15:35:40,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:40,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24491 transitions. [2022-03-15 15:35:40,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:40,225 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:40,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:40,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1045 [2022-03-15 15:35:40,225 INFO L402 AbstractCegarLoop]: === Iteration 1047 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:40,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:40,226 INFO L85 PathProgramCache]: Analyzing trace with hash -557546909, now seen corresponding path program 1042 times [2022-03-15 15:35:40,226 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:40,226 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958770789] [2022-03-15 15:35:40,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:40,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:40,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:40,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:40,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958770789] [2022-03-15 15:35:40,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958770789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:40,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:40,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:40,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619947170] [2022-03-15 15:35:40,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:40,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:40,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:40,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:40,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:40,349 INFO L87 Difference]: Start difference. First operand 5169 states and 24491 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:40,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:40,522 INFO L93 Difference]: Finished difference Result 10300 states and 46279 transitions. [2022-03-15 15:35:40,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:40,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:40,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:40,553 INFO L225 Difference]: With dead ends: 10300 [2022-03-15 15:35:40,553 INFO L226 Difference]: Without dead ends: 9789 [2022-03-15 15:35:40,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:40,554 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 157 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:40,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 206 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:40,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9789 states. [2022-03-15 15:35:40,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9789 to 5121. [2022-03-15 15:35:40,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7443359375) internal successors, (24291), 5120 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24291 transitions. [2022-03-15 15:35:40,701 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24291 transitions. Word has length 29 [2022-03-15 15:35:40,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:40,702 INFO L470 AbstractCegarLoop]: Abstraction has 5121 states and 24291 transitions. [2022-03-15 15:35:40,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:40,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24291 transitions. [2022-03-15 15:35:40,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:40,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:40,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:40,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1046 [2022-03-15 15:35:40,712 INFO L402 AbstractCegarLoop]: === Iteration 1048 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:40,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:40,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1944857019, now seen corresponding path program 1043 times [2022-03-15 15:35:40,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:40,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754844408] [2022-03-15 15:35:40,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:40,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:40,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:40,850 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:40,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754844408] [2022-03-15 15:35:40,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754844408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:40,851 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:40,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:40,851 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576504211] [2022-03-15 15:35:40,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:40,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:40,851 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:40,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:40,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:40,851 INFO L87 Difference]: Start difference. First operand 5121 states and 24291 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:41,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:41,040 INFO L93 Difference]: Finished difference Result 10658 states and 47657 transitions. [2022-03-15 15:35:41,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:41,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:41,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:41,074 INFO L225 Difference]: With dead ends: 10658 [2022-03-15 15:35:41,074 INFO L226 Difference]: Without dead ends: 10181 [2022-03-15 15:35:41,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:41,074 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:41,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 211 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:41,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10181 states. [2022-03-15 15:35:41,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10181 to 5193. [2022-03-15 15:35:41,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.731702619414484) internal successors, (24567), 5192 states have internal predecessors, (24567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:41,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24567 transitions. [2022-03-15 15:35:41,228 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24567 transitions. Word has length 29 [2022-03-15 15:35:41,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:41,228 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24567 transitions. [2022-03-15 15:35:41,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:41,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24567 transitions. [2022-03-15 15:35:41,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:41,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:41,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:41,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1047 [2022-03-15 15:35:41,239 INFO L402 AbstractCegarLoop]: === Iteration 1049 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:41,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:41,239 INFO L85 PathProgramCache]: Analyzing trace with hash -2034616669, now seen corresponding path program 1044 times [2022-03-15 15:35:41,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:41,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049779197] [2022-03-15 15:35:41,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:41,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:41,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:41,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:41,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049779197] [2022-03-15 15:35:41,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049779197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:41,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:41,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:41,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703123658] [2022-03-15 15:35:41,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:41,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:41,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:41,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:41,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:41,379 INFO L87 Difference]: Start difference. First operand 5193 states and 24567 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:41,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:41,592 INFO L93 Difference]: Finished difference Result 10324 states and 46355 transitions. [2022-03-15 15:35:41,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:41,592 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:41,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:41,624 INFO L225 Difference]: With dead ends: 10324 [2022-03-15 15:35:41,624 INFO L226 Difference]: Without dead ends: 9765 [2022-03-15 15:35:41,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:41,625 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 142 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:41,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 256 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:41,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2022-03-15 15:35:41,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 5097. [2022-03-15 15:35:41,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 4.750196232339089) internal successors, (24207), 5096 states have internal predecessors, (24207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 24207 transitions. [2022-03-15 15:35:41,768 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 24207 transitions. Word has length 29 [2022-03-15 15:35:41,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:41,768 INFO L470 AbstractCegarLoop]: Abstraction has 5097 states and 24207 transitions. [2022-03-15 15:35:41,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:41,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 24207 transitions. [2022-03-15 15:35:41,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:41,779 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:41,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:41,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1048 [2022-03-15 15:35:41,779 INFO L402 AbstractCegarLoop]: === Iteration 1050 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:41,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:41,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2101133627, now seen corresponding path program 1045 times [2022-03-15 15:35:41,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:41,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540988186] [2022-03-15 15:35:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:41,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:41,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:41,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:41,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540988186] [2022-03-15 15:35:41,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540988186] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:41,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:41,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:41,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277931248] [2022-03-15 15:35:41,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:41,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:41,954 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:41,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:41,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:41,954 INFO L87 Difference]: Start difference. First operand 5097 states and 24207 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:42,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:42,143 INFO L93 Difference]: Finished difference Result 10510 states and 46963 transitions. [2022-03-15 15:35:42,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:42,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:42,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:42,176 INFO L225 Difference]: With dead ends: 10510 [2022-03-15 15:35:42,176 INFO L226 Difference]: Without dead ends: 10095 [2022-03-15 15:35:42,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:42,176 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 161 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:42,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 232 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:42,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10095 states. [2022-03-15 15:35:42,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10095 to 5145. [2022-03-15 15:35:42,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.743195956454121) internal successors, (24399), 5144 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:42,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24399 transitions. [2022-03-15 15:35:42,328 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24399 transitions. Word has length 29 [2022-03-15 15:35:42,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:42,328 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24399 transitions. [2022-03-15 15:35:42,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:42,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24399 transitions. [2022-03-15 15:35:42,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:42,338 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:42,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:42,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1049 [2022-03-15 15:35:42,338 INFO L402 AbstractCegarLoop]: === Iteration 1051 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:42,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:42,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1379861277, now seen corresponding path program 1046 times [2022-03-15 15:35:42,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:42,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292424726] [2022-03-15 15:35:42,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:42,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:42,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:42,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292424726] [2022-03-15 15:35:42,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292424726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:42,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:42,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:42,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132715609] [2022-03-15 15:35:42,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:42,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:42,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:42,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:42,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:42,466 INFO L87 Difference]: Start difference. First operand 5145 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:42,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:42,639 INFO L93 Difference]: Finished difference Result 10510 states and 46931 transitions. [2022-03-15 15:35:42,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:42,640 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:42,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:42,672 INFO L225 Difference]: With dead ends: 10510 [2022-03-15 15:35:42,672 INFO L226 Difference]: Without dead ends: 10063 [2022-03-15 15:35:42,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:42,672 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 161 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:42,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 221 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:42,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10063 states. [2022-03-15 15:35:42,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10063 to 5113. [2022-03-15 15:35:42,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.747848200312989) internal successors, (24271), 5112 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:42,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24271 transitions. [2022-03-15 15:35:42,822 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24271 transitions. Word has length 29 [2022-03-15 15:35:42,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:42,822 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24271 transitions. [2022-03-15 15:35:42,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:42,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24271 transitions. [2022-03-15 15:35:42,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:42,832 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:42,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:42,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1050 [2022-03-15 15:35:42,833 INFO L402 AbstractCegarLoop]: === Iteration 1052 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:42,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:42,833 INFO L85 PathProgramCache]: Analyzing trace with hash 150869923, now seen corresponding path program 1047 times [2022-03-15 15:35:42,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:42,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910817955] [2022-03-15 15:35:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:42,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:43,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:43,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:43,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910817955] [2022-03-15 15:35:43,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910817955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:43,014 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:43,014 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:43,014 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524307343] [2022-03-15 15:35:43,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:43,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:43,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:43,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:43,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:43,015 INFO L87 Difference]: Start difference. First operand 5113 states and 24271 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:43,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:43,231 INFO L93 Difference]: Finished difference Result 10478 states and 46851 transitions. [2022-03-15 15:35:43,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:43,231 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:43,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:43,265 INFO L225 Difference]: With dead ends: 10478 [2022-03-15 15:35:43,265 INFO L226 Difference]: Without dead ends: 10063 [2022-03-15 15:35:43,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:43,265 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 162 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:43,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 233 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:43,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10063 states. [2022-03-15 15:35:43,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10063 to 5161. [2022-03-15 15:35:43,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.737790697674418) internal successors, (24447), 5160 states have internal predecessors, (24447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:43,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24447 transitions. [2022-03-15 15:35:43,418 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24447 transitions. Word has length 29 [2022-03-15 15:35:43,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:43,418 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24447 transitions. [2022-03-15 15:35:43,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:43,419 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24447 transitions. [2022-03-15 15:35:43,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:43,429 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:43,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:43,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1051 [2022-03-15 15:35:43,429 INFO L402 AbstractCegarLoop]: === Iteration 1053 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:43,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:43,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1152054853, now seen corresponding path program 1048 times [2022-03-15 15:35:43,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:43,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601570105] [2022-03-15 15:35:43,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:43,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:43,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:43,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:43,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601570105] [2022-03-15 15:35:43,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601570105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:43,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:43,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:43,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146889039] [2022-03-15 15:35:43,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:43,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:43,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:43,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:43,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:43,591 INFO L87 Difference]: Start difference. First operand 5161 states and 24447 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:43,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:43,788 INFO L93 Difference]: Finished difference Result 10206 states and 45842 transitions. [2022-03-15 15:35:43,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:43,788 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:43,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:43,819 INFO L225 Difference]: With dead ends: 10206 [2022-03-15 15:35:43,819 INFO L226 Difference]: Without dead ends: 9695 [2022-03-15 15:35:43,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:43,820 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:43,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 198 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:43,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9695 states. [2022-03-15 15:35:43,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9695 to 5113. [2022-03-15 15:35:43,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.744718309859155) internal successors, (24255), 5112 states have internal predecessors, (24255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:43,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24255 transitions. [2022-03-15 15:35:43,966 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24255 transitions. Word has length 29 [2022-03-15 15:35:43,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:43,966 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24255 transitions. [2022-03-15 15:35:43,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:43,967 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24255 transitions. [2022-03-15 15:35:43,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:43,977 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:43,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:43,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1052 [2022-03-15 15:35:43,977 INFO L402 AbstractCegarLoop]: === Iteration 1054 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:43,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:43,977 INFO L85 PathProgramCache]: Analyzing trace with hash -438438597, now seen corresponding path program 1049 times [2022-03-15 15:35:43,977 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:43,977 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835496720] [2022-03-15 15:35:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:43,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:44,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:44,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:44,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835496720] [2022-03-15 15:35:44,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835496720] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:44,129 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:44,129 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:44,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900827195] [2022-03-15 15:35:44,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:44,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:44,130 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:44,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:44,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:44,130 INFO L87 Difference]: Start difference. First operand 5113 states and 24255 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:44,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:44,312 INFO L93 Difference]: Finished difference Result 10478 states and 46835 transitions. [2022-03-15 15:35:44,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:44,312 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:44,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:44,344 INFO L225 Difference]: With dead ends: 10478 [2022-03-15 15:35:44,344 INFO L226 Difference]: Without dead ends: 10063 [2022-03-15 15:35:44,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:44,344 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:44,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 196 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:44,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10063 states. [2022-03-15 15:35:44,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10063 to 5161. [2022-03-15 15:35:44,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.73468992248062) internal successors, (24431), 5160 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:44,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24431 transitions. [2022-03-15 15:35:44,494 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24431 transitions. Word has length 29 [2022-03-15 15:35:44,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:44,494 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24431 transitions. [2022-03-15 15:35:44,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:44,494 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24431 transitions. [2022-03-15 15:35:44,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:44,504 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:44,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:44,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1053 [2022-03-15 15:35:44,505 INFO L402 AbstractCegarLoop]: === Iteration 1055 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:44,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:44,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1933117155, now seen corresponding path program 1050 times [2022-03-15 15:35:44,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:44,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292878436] [2022-03-15 15:35:44,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:44,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:44,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:44,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:44,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292878436] [2022-03-15 15:35:44,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292878436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:44,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:44,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:44,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464354333] [2022-03-15 15:35:44,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:44,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:44,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:44,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:44,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:44,663 INFO L87 Difference]: Start difference. First operand 5161 states and 24431 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:44,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:44,846 INFO L93 Difference]: Finished difference Result 10206 states and 45826 transitions. [2022-03-15 15:35:44,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:44,846 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:44,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:44,877 INFO L225 Difference]: With dead ends: 10206 [2022-03-15 15:35:44,877 INFO L226 Difference]: Without dead ends: 9679 [2022-03-15 15:35:44,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:44,877 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:44,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 220 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:44,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9679 states. [2022-03-15 15:35:44,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9679 to 5097. [2022-03-15 15:35:45,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 4.748626373626373) internal successors, (24199), 5096 states have internal predecessors, (24199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:45,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 24199 transitions. [2022-03-15 15:35:45,024 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 24199 transitions. Word has length 29 [2022-03-15 15:35:45,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:45,024 INFO L470 AbstractCegarLoop]: Abstraction has 5097 states and 24199 transitions. [2022-03-15 15:35:45,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:45,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 24199 transitions. [2022-03-15 15:35:45,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:45,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:45,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:45,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1054 [2022-03-15 15:35:45,035 INFO L402 AbstractCegarLoop]: === Iteration 1056 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:45,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:45,035 INFO L85 PathProgramCache]: Analyzing trace with hash -950328901, now seen corresponding path program 1051 times [2022-03-15 15:35:45,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:45,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244164422] [2022-03-15 15:35:45,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:45,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:45,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:45,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:45,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244164422] [2022-03-15 15:35:45,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244164422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:45,155 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:45,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:45,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920104081] [2022-03-15 15:35:45,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:45,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:45,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:45,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:45,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:45,156 INFO L87 Difference]: Start difference. First operand 5097 states and 24199 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:45,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:45,350 INFO L93 Difference]: Finished difference Result 10744 states and 48010 transitions. [2022-03-15 15:35:45,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:45,351 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:45,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:45,384 INFO L225 Difference]: With dead ends: 10744 [2022-03-15 15:35:45,385 INFO L226 Difference]: Without dead ends: 10267 [2022-03-15 15:35:45,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:45,385 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 170 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:45,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 215 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:45,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10267 states. [2022-03-15 15:35:45,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10267 to 5169. [2022-03-15 15:35:45,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.740518575851393) internal successors, (24499), 5168 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:45,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24499 transitions. [2022-03-15 15:35:45,537 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24499 transitions. Word has length 29 [2022-03-15 15:35:45,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:45,537 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24499 transitions. [2022-03-15 15:35:45,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:45,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24499 transitions. [2022-03-15 15:35:45,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:45,547 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:45,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:45,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1055 [2022-03-15 15:35:45,547 INFO L402 AbstractCegarLoop]: === Iteration 1057 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:45,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:45,548 INFO L85 PathProgramCache]: Analyzing trace with hash 130733725, now seen corresponding path program 1052 times [2022-03-15 15:35:45,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:45,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82928120] [2022-03-15 15:35:45,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:45,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:45,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:45,712 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:45,712 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82928120] [2022-03-15 15:35:45,712 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82928120] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:45,712 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:45,712 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:45,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337980179] [2022-03-15 15:35:45,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:45,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:45,713 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:45,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:45,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:45,713 INFO L87 Difference]: Start difference. First operand 5169 states and 24499 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:45,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:45,928 INFO L93 Difference]: Finished difference Result 10682 states and 47693 transitions. [2022-03-15 15:35:45,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:45,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:45,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:45,961 INFO L225 Difference]: With dead ends: 10682 [2022-03-15 15:35:45,961 INFO L226 Difference]: Without dead ends: 10219 [2022-03-15 15:35:45,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:45,961 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 165 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:45,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 215 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:45,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10219 states. [2022-03-15 15:35:46,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10219 to 5121. [2022-03-15 15:35:46,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7458984375) internal successors, (24299), 5120 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:46,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24299 transitions. [2022-03-15 15:35:46,107 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24299 transitions. Word has length 29 [2022-03-15 15:35:46,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:46,107 INFO L470 AbstractCegarLoop]: Abstraction has 5121 states and 24299 transitions. [2022-03-15 15:35:46,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:46,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24299 transitions. [2022-03-15 15:35:46,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:46,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:46,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:46,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1056 [2022-03-15 15:35:46,117 INFO L402 AbstractCegarLoop]: === Iteration 1058 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:46,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:46,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1477621021, now seen corresponding path program 1053 times [2022-03-15 15:35:46,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:46,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785556381] [2022-03-15 15:35:46,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:46,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:46,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:46,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:46,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785556381] [2022-03-15 15:35:46,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785556381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:46,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:46,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:46,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293340853] [2022-03-15 15:35:46,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:46,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:46,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:46,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:46,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:46,279 INFO L87 Difference]: Start difference. First operand 5121 states and 24299 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:46,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:46,554 INFO L93 Difference]: Finished difference Result 10658 states and 47665 transitions. [2022-03-15 15:35:46,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:46,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:46,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:46,590 INFO L225 Difference]: With dead ends: 10658 [2022-03-15 15:35:46,590 INFO L226 Difference]: Without dead ends: 10181 [2022-03-15 15:35:46,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:46,591 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 148 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:46,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 212 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:46,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10181 states. [2022-03-15 15:35:46,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10181 to 5193. [2022-03-15 15:35:46,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.733243451463791) internal successors, (24575), 5192 states have internal predecessors, (24575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:46,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24575 transitions. [2022-03-15 15:35:46,742 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24575 transitions. Word has length 29 [2022-03-15 15:35:46,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:46,742 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24575 transitions. [2022-03-15 15:35:46,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:46,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24575 transitions. [2022-03-15 15:35:46,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:46,752 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:46,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:46,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1057 [2022-03-15 15:35:46,753 INFO L402 AbstractCegarLoop]: === Iteration 1059 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:46,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:46,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1029964515, now seen corresponding path program 1054 times [2022-03-15 15:35:46,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:46,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759991425] [2022-03-15 15:35:46,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:46,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:46,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:46,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:46,905 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759991425] [2022-03-15 15:35:46,905 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759991425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:46,905 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:46,905 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:46,905 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801971278] [2022-03-15 15:35:46,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:46,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:46,905 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:46,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:46,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:46,906 INFO L87 Difference]: Start difference. First operand 5193 states and 24575 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:47,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:47,098 INFO L93 Difference]: Finished difference Result 10324 states and 46363 transitions. [2022-03-15 15:35:47,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:47,098 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:47,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:47,129 INFO L225 Difference]: With dead ends: 10324 [2022-03-15 15:35:47,130 INFO L226 Difference]: Without dead ends: 9789 [2022-03-15 15:35:47,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:47,130 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 143 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:47,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 236 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:47,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9789 states. [2022-03-15 15:35:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9789 to 5121. [2022-03-15 15:35:47,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7412109375) internal successors, (24275), 5120 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:47,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24275 transitions. [2022-03-15 15:35:47,290 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24275 transitions. Word has length 29 [2022-03-15 15:35:47,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:47,290 INFO L470 AbstractCegarLoop]: Abstraction has 5121 states and 24275 transitions. [2022-03-15 15:35:47,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:47,290 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24275 transitions. [2022-03-15 15:35:47,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:47,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:47,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:47,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1058 [2022-03-15 15:35:47,301 INFO L402 AbstractCegarLoop]: === Iteration 1060 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:47,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:47,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1865625983, now seen corresponding path program 1055 times [2022-03-15 15:35:47,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:47,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096989554] [2022-03-15 15:35:47,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:47,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:47,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:47,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:47,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096989554] [2022-03-15 15:35:47,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096989554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:47,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:47,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:47,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824651726] [2022-03-15 15:35:47,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:47,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:47,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:47,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:47,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:47,409 INFO L87 Difference]: Start difference. First operand 5121 states and 24275 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:47,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:47,568 INFO L93 Difference]: Finished difference Result 10572 states and 47248 transitions. [2022-03-15 15:35:47,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:47,569 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:47,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:47,600 INFO L225 Difference]: With dead ends: 10572 [2022-03-15 15:35:47,600 INFO L226 Difference]: Without dead ends: 10157 [2022-03-15 15:35:47,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:47,600 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 162 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:47,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 205 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:47,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10157 states. [2022-03-15 15:35:47,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10157 to 5169. [2022-03-15 15:35:47,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.7312306501547985) internal successors, (24451), 5168 states have internal predecessors, (24451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:47,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24451 transitions. [2022-03-15 15:35:47,740 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24451 transitions. Word has length 29 [2022-03-15 15:35:47,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:47,740 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24451 transitions. [2022-03-15 15:35:47,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:47,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24451 transitions. [2022-03-15 15:35:47,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:47,750 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:47,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:47,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1059 [2022-03-15 15:35:47,750 INFO L402 AbstractCegarLoop]: === Iteration 1061 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:47,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:47,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1519736355, now seen corresponding path program 1056 times [2022-03-15 15:35:47,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:47,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203093656] [2022-03-15 15:35:47,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:47,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:47,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:47,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:47,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203093656] [2022-03-15 15:35:47,858 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203093656] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:47,858 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:47,858 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:47,858 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340180035] [2022-03-15 15:35:47,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:47,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:47,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:47,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:47,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:47,859 INFO L87 Difference]: Start difference. First operand 5169 states and 24451 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:48,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:48,026 INFO L93 Difference]: Finished difference Result 10300 states and 46239 transitions. [2022-03-15 15:35:48,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:48,026 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:48,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:48,058 INFO L225 Difference]: With dead ends: 10300 [2022-03-15 15:35:48,058 INFO L226 Difference]: Without dead ends: 9757 [2022-03-15 15:35:48,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:48,058 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 148 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:48,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 205 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:48,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9757 states. [2022-03-15 15:35:48,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9757 to 5089. [2022-03-15 15:35:48,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.751375786163522) internal successors, (24175), 5088 states have internal predecessors, (24175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:48,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24175 transitions. [2022-03-15 15:35:48,203 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24175 transitions. Word has length 29 [2022-03-15 15:35:48,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:48,203 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24175 transitions. [2022-03-15 15:35:48,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:48,203 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24175 transitions. [2022-03-15 15:35:48,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:48,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:48,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:48,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1060 [2022-03-15 15:35:48,214 INFO L402 AbstractCegarLoop]: === Iteration 1062 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:48,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:48,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1017803173, now seen corresponding path program 1057 times [2022-03-15 15:35:48,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:48,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197961055] [2022-03-15 15:35:48,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:48,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:48,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:48,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:48,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197961055] [2022-03-15 15:35:48,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197961055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:48,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:48,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:48,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909661264] [2022-03-15 15:35:48,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:48,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:48,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:48,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:48,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:48,334 INFO L87 Difference]: Start difference. First operand 5089 states and 24175 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:48,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:48,501 INFO L93 Difference]: Finished difference Result 11707 states and 52183 transitions. [2022-03-15 15:35:48,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:48,501 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:48,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:48,537 INFO L225 Difference]: With dead ends: 11707 [2022-03-15 15:35:48,537 INFO L226 Difference]: Without dead ends: 11165 [2022-03-15 15:35:48,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:48,538 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 179 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:48,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 205 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:48,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11165 states. [2022-03-15 15:35:48,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11165 to 5316. [2022-03-15 15:35:48,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5316 states, 5315 states have (on average 4.724365004703669) internal successors, (25110), 5315 states have internal predecessors, (25110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:48,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5316 states to 5316 states and 25110 transitions. [2022-03-15 15:35:48,713 INFO L78 Accepts]: Start accepts. Automaton has 5316 states and 25110 transitions. Word has length 29 [2022-03-15 15:35:48,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:48,713 INFO L470 AbstractCegarLoop]: Abstraction has 5316 states and 25110 transitions. [2022-03-15 15:35:48,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:48,713 INFO L276 IsEmpty]: Start isEmpty. Operand 5316 states and 25110 transitions. [2022-03-15 15:35:48,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:48,727 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:48,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:48,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1061 [2022-03-15 15:35:48,727 INFO L402 AbstractCegarLoop]: === Iteration 1063 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:48,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:48,727 INFO L85 PathProgramCache]: Analyzing trace with hash 63259453, now seen corresponding path program 1058 times [2022-03-15 15:35:48,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:48,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395611141] [2022-03-15 15:35:48,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:48,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:48,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:48,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395611141] [2022-03-15 15:35:48,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395611141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:48,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:48,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:48,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989961773] [2022-03-15 15:35:48,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:48,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:48,861 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:48,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:48,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:48,862 INFO L87 Difference]: Start difference. First operand 5316 states and 25110 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:49,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:49,093 INFO L93 Difference]: Finished difference Result 11642 states and 51814 transitions. [2022-03-15 15:35:49,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:49,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:49,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:49,128 INFO L225 Difference]: With dead ends: 11642 [2022-03-15 15:35:49,128 INFO L226 Difference]: Without dead ends: 11022 [2022-03-15 15:35:49,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:49,129 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 151 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:49,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 238 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:49,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11022 states. [2022-03-15 15:35:49,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11022 to 5173. [2022-03-15 15:35:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.743812838360403) internal successors, (24535), 5172 states have internal predecessors, (24535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:49,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24535 transitions. [2022-03-15 15:35:49,283 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24535 transitions. Word has length 29 [2022-03-15 15:35:49,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:49,283 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24535 transitions. [2022-03-15 15:35:49,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:49,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24535 transitions. [2022-03-15 15:35:49,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:49,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:49,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:49,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1062 [2022-03-15 15:35:49,293 INFO L402 AbstractCegarLoop]: === Iteration 1064 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:49,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:49,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1498705219, now seen corresponding path program 1059 times [2022-03-15 15:35:49,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:49,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166000695] [2022-03-15 15:35:49,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:49,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:49,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:49,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:49,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166000695] [2022-03-15 15:35:49,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166000695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:49,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:49,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:49,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576784711] [2022-03-15 15:35:49,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:49,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:49,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:49,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:49,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:49,403 INFO L87 Difference]: Start difference. First operand 5173 states and 24535 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:49,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:49,579 INFO L93 Difference]: Finished difference Result 11582 states and 51596 transitions. [2022-03-15 15:35:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:49,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:49,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:49,614 INFO L225 Difference]: With dead ends: 11582 [2022-03-15 15:35:49,614 INFO L226 Difference]: Without dead ends: 11040 [2022-03-15 15:35:49,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:49,614 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 150 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:49,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 242 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:49,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11040 states. [2022-03-15 15:35:49,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11040 to 5253. [2022-03-15 15:35:49,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.726389946686976) internal successors, (24823), 5252 states have internal predecessors, (24823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:49,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24823 transitions. [2022-03-15 15:35:49,772 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24823 transitions. Word has length 29 [2022-03-15 15:35:49,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:49,772 INFO L470 AbstractCegarLoop]: Abstraction has 5253 states and 24823 transitions. [2022-03-15 15:35:49,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:49,772 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24823 transitions. [2022-03-15 15:35:49,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:49,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:49,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:49,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1063 [2022-03-15 15:35:49,783 INFO L402 AbstractCegarLoop]: === Iteration 1065 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:49,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:49,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1108015805, now seen corresponding path program 1060 times [2022-03-15 15:35:49,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:49,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587769309] [2022-03-15 15:35:49,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:49,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:49,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:49,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:49,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587769309] [2022-03-15 15:35:49,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587769309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:49,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:49,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:49,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115096121] [2022-03-15 15:35:49,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:49,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:49,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:49,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:49,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:49,957 INFO L87 Difference]: Start difference. First operand 5253 states and 24823 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:50,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:50,139 INFO L93 Difference]: Finished difference Result 11455 states and 50989 transitions. [2022-03-15 15:35:50,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:50,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:50,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:50,177 INFO L225 Difference]: With dead ends: 11455 [2022-03-15 15:35:50,177 INFO L226 Difference]: Without dead ends: 10960 [2022-03-15 15:35:50,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:50,177 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 175 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:50,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 199 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:50,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10960 states. [2022-03-15 15:35:50,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10960 to 5173. [2022-03-15 15:35:50,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.736078886310905) internal successors, (24495), 5172 states have internal predecessors, (24495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:50,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24495 transitions. [2022-03-15 15:35:50,339 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24495 transitions. Word has length 29 [2022-03-15 15:35:50,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:50,339 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24495 transitions. [2022-03-15 15:35:50,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:50,339 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24495 transitions. [2022-03-15 15:35:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:50,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:50,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:50,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1064 [2022-03-15 15:35:50,350 INFO L402 AbstractCegarLoop]: === Iteration 1066 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:50,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:50,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1110700257, now seen corresponding path program 1061 times [2022-03-15 15:35:50,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:50,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353644922] [2022-03-15 15:35:50,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:50,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:50,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:50,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:50,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353644922] [2022-03-15 15:35:50,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353644922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:50,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:50,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:50,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927612040] [2022-03-15 15:35:50,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:50,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:50,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:50,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:50,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:50,489 INFO L87 Difference]: Start difference. First operand 5173 states and 24495 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:50,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:50,653 INFO L93 Difference]: Finished difference Result 11420 states and 50896 transitions. [2022-03-15 15:35:50,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:50,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:50,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:50,689 INFO L225 Difference]: With dead ends: 11420 [2022-03-15 15:35:50,689 INFO L226 Difference]: Without dead ends: 10943 [2022-03-15 15:35:50,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:50,689 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 163 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:50,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 204 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:50,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10943 states. [2022-03-15 15:35:50,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10943 to 5221. [2022-03-15 15:35:50,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.72624521072797) internal successors, (24671), 5220 states have internal predecessors, (24671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:50,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24671 transitions. [2022-03-15 15:35:50,848 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24671 transitions. Word has length 29 [2022-03-15 15:35:50,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:50,848 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24671 transitions. [2022-03-15 15:35:50,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:50,848 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24671 transitions. [2022-03-15 15:35:50,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:50,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:50,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:50,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1065 [2022-03-15 15:35:50,859 INFO L402 AbstractCegarLoop]: === Iteration 1067 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:50,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:50,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1957497219, now seen corresponding path program 1062 times [2022-03-15 15:35:50,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:50,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122379457] [2022-03-15 15:35:50,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:50,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:51,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:51,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122379457] [2022-03-15 15:35:51,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122379457] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:51,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:51,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:51,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677158402] [2022-03-15 15:35:51,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:51,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:51,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:51,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:51,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:51,034 INFO L87 Difference]: Start difference. First operand 5221 states and 24671 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:51,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:51,201 INFO L93 Difference]: Finished difference Result 11358 states and 50579 transitions. [2022-03-15 15:35:51,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:51,201 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:51,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:51,237 INFO L225 Difference]: With dead ends: 11358 [2022-03-15 15:35:51,238 INFO L226 Difference]: Without dead ends: 10839 [2022-03-15 15:35:51,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:51,241 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 160 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:51,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 207 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:51,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10839 states. [2022-03-15 15:35:51,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10839 to 5117. [2022-03-15 15:35:51,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.7488272087568415) internal successors, (24295), 5116 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:51,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24295 transitions. [2022-03-15 15:35:51,401 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24295 transitions. Word has length 29 [2022-03-15 15:35:51,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:51,401 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24295 transitions. [2022-03-15 15:35:51,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:51,401 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24295 transitions. [2022-03-15 15:35:51,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:51,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:51,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:51,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1066 [2022-03-15 15:35:51,412 INFO L402 AbstractCegarLoop]: === Iteration 1068 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:51,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:51,412 INFO L85 PathProgramCache]: Analyzing trace with hash 74830141, now seen corresponding path program 1063 times [2022-03-15 15:35:51,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:51,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71710664] [2022-03-15 15:35:51,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:51,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:51,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:51,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:51,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71710664] [2022-03-15 15:35:51,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71710664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:51,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:51,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:51,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401960643] [2022-03-15 15:35:51,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:51,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:51,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:51,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:51,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:51,575 INFO L87 Difference]: Start difference. First operand 5117 states and 24295 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:52,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:52,197 INFO L93 Difference]: Finished difference Result 11672 states and 52065 transitions. [2022-03-15 15:35:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:52,198 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:52,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:52,233 INFO L225 Difference]: With dead ends: 11672 [2022-03-15 15:35:52,233 INFO L226 Difference]: Without dead ends: 11130 [2022-03-15 15:35:52,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:52,234 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 161 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:52,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 212 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 15:35:52,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11130 states. [2022-03-15 15:35:52,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11130 to 5328. [2022-03-15 15:35:52,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 4.721231462361555) internal successors, (25150), 5327 states have internal predecessors, (25150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:52,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 25150 transitions. [2022-03-15 15:35:52,403 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 25150 transitions. Word has length 29 [2022-03-15 15:35:52,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:52,403 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 25150 transitions. [2022-03-15 15:35:52,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:52,403 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 25150 transitions. [2022-03-15 15:35:52,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:52,413 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:52,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:52,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1067 [2022-03-15 15:35:52,414 INFO L402 AbstractCegarLoop]: === Iteration 1069 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:52,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:52,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1155892767, now seen corresponding path program 1064 times [2022-03-15 15:35:52,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:52,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715206979] [2022-03-15 15:35:52,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:52,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:52,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:52,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:52,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715206979] [2022-03-15 15:35:52,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715206979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:52,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:52,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:52,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559532930] [2022-03-15 15:35:52,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:52,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:52,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:52,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:52,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:52,611 INFO L87 Difference]: Start difference. First operand 5328 states and 25150 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:52,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:52,839 INFO L93 Difference]: Finished difference Result 11607 states and 51696 transitions. [2022-03-15 15:35:52,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:52,840 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:52,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:52,878 INFO L225 Difference]: With dead ends: 11607 [2022-03-15 15:35:52,878 INFO L226 Difference]: Without dead ends: 10987 [2022-03-15 15:35:52,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:52,878 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 174 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:52,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 200 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:52,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10987 states. [2022-03-15 15:35:53,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10987 to 5185. [2022-03-15 15:35:53,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.738233024691358) internal successors, (24563), 5184 states have internal predecessors, (24563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:53,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24563 transitions. [2022-03-15 15:35:53,027 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24563 transitions. Word has length 29 [2022-03-15 15:35:53,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:53,027 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24563 transitions. [2022-03-15 15:35:53,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:53,027 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24563 transitions. [2022-03-15 15:35:53,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:53,037 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:53,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:53,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1068 [2022-03-15 15:35:53,037 INFO L402 AbstractCegarLoop]: === Iteration 1070 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:53,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:53,038 INFO L85 PathProgramCache]: Analyzing trace with hash -238216899, now seen corresponding path program 1065 times [2022-03-15 15:35:53,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:53,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379506236] [2022-03-15 15:35:53,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:53,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:53,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:53,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:53,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379506236] [2022-03-15 15:35:53,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379506236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:53,219 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:53,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:53,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536115004] [2022-03-15 15:35:53,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:53,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:53,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:53,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:53,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:53,219 INFO L87 Difference]: Start difference. First operand 5185 states and 24563 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:53,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:53,437 INFO L93 Difference]: Finished difference Result 11396 states and 50887 transitions. [2022-03-15 15:35:53,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:53,437 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:53,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:53,471 INFO L225 Difference]: With dead ends: 11396 [2022-03-15 15:35:53,471 INFO L226 Difference]: Without dead ends: 10854 [2022-03-15 15:35:53,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:53,471 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 167 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:53,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 219 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:53,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-03-15 15:35:53,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 5289. [2022-03-15 15:35:53,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 5288 states have (on average 4.718419062027231) internal successors, (24951), 5288 states have internal predecessors, (24951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:53,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 24951 transitions. [2022-03-15 15:35:53,761 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 24951 transitions. Word has length 29 [2022-03-15 15:35:53,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:53,761 INFO L470 AbstractCegarLoop]: Abstraction has 5289 states and 24951 transitions. [2022-03-15 15:35:53,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:53,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 24951 transitions. [2022-03-15 15:35:53,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:53,774 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:53,774 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:53,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1069 [2022-03-15 15:35:53,774 INFO L402 AbstractCegarLoop]: === Iteration 1071 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:53,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:53,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1007988419, now seen corresponding path program 1066 times [2022-03-15 15:35:53,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:53,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3754625] [2022-03-15 15:35:53,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:53,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:53,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:53,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:53,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3754625] [2022-03-15 15:35:53,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3754625] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:53,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:53,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:53,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460234280] [2022-03-15 15:35:53,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:53,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:53,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:53,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:53,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:53,939 INFO L87 Difference]: Start difference. First operand 5289 states and 24951 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:54,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:54,149 INFO L93 Difference]: Finished difference Result 10997 states and 49295 transitions. [2022-03-15 15:35:54,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:54,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:54,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:54,181 INFO L225 Difference]: With dead ends: 10997 [2022-03-15 15:35:54,181 INFO L226 Difference]: Without dead ends: 10430 [2022-03-15 15:35:54,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:54,182 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 153 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:54,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 201 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:54,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10430 states. [2022-03-15 15:35:54,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10430 to 5185. [2022-03-15 15:35:54,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.728202160493828) internal successors, (24511), 5184 states have internal predecessors, (24511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:54,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24511 transitions. [2022-03-15 15:35:54,312 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24511 transitions. Word has length 29 [2022-03-15 15:35:54,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:54,312 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24511 transitions. [2022-03-15 15:35:54,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:54,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24511 transitions. [2022-03-15 15:35:54,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:54,321 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:54,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:54,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1070 [2022-03-15 15:35:54,322 INFO L402 AbstractCegarLoop]: === Iteration 1072 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:54,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:54,322 INFO L85 PathProgramCache]: Analyzing trace with hash 149788063, now seen corresponding path program 1067 times [2022-03-15 15:35:54,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:54,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046809030] [2022-03-15 15:35:54,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:54,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:54,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:54,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:54,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046809030] [2022-03-15 15:35:54,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046809030] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:54,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:54,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:54,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925912158] [2022-03-15 15:35:54,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:54,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:54,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:54,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:54,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:54,487 INFO L87 Difference]: Start difference. First operand 5185 states and 24511 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:54,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:54,719 INFO L93 Difference]: Finished difference Result 11299 states and 50433 transitions. [2022-03-15 15:35:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:54,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:54,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:54,755 INFO L225 Difference]: With dead ends: 11299 [2022-03-15 15:35:54,756 INFO L226 Difference]: Without dead ends: 10822 [2022-03-15 15:35:54,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:54,756 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 155 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:54,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 234 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:54,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10822 states. [2022-03-15 15:35:54,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10822 to 5257. [2022-03-15 15:35:54,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5256 states have (on average 4.715943683409437) internal successors, (24787), 5256 states have internal predecessors, (24787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:54,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 24787 transitions. [2022-03-15 15:35:54,916 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 24787 transitions. Word has length 29 [2022-03-15 15:35:54,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:54,916 INFO L470 AbstractCegarLoop]: Abstraction has 5257 states and 24787 transitions. [2022-03-15 15:35:54,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:54,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 24787 transitions. [2022-03-15 15:35:54,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:54,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:54,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:54,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1071 [2022-03-15 15:35:54,927 INFO L402 AbstractCegarLoop]: === Iteration 1073 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:54,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:54,927 INFO L85 PathProgramCache]: Analyzing trace with hash -209889667, now seen corresponding path program 1068 times [2022-03-15 15:35:54,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:54,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814344682] [2022-03-15 15:35:54,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:54,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:55,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:55,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814344682] [2022-03-15 15:35:55,095 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814344682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:55,095 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:55,095 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:55,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795796156] [2022-03-15 15:35:55,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:55,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:55,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:55,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:55,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:55,095 INFO L87 Difference]: Start difference. First operand 5257 states and 24787 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:55,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:55,317 INFO L93 Difference]: Finished difference Result 10965 states and 49131 transitions. [2022-03-15 15:35:55,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:55,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:55,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:55,350 INFO L225 Difference]: With dead ends: 10965 [2022-03-15 15:35:55,350 INFO L226 Difference]: Without dead ends: 10362 [2022-03-15 15:35:55,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:55,350 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 152 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:55,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 214 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:55,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10362 states. [2022-03-15 15:35:55,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10362 to 5117. [2022-03-15 15:35:55,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.743354182955434) internal successors, (24267), 5116 states have internal predecessors, (24267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:55,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24267 transitions. [2022-03-15 15:35:55,492 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24267 transitions. Word has length 29 [2022-03-15 15:35:55,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:55,492 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24267 transitions. [2022-03-15 15:35:55,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:55,493 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24267 transitions. [2022-03-15 15:35:55,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:55,502 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:55,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:55,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1072 [2022-03-15 15:35:55,527 INFO L402 AbstractCegarLoop]: === Iteration 1074 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:55,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:55,527 INFO L85 PathProgramCache]: Analyzing trace with hash -714556129, now seen corresponding path program 1069 times [2022-03-15 15:35:55,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:55,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246333003] [2022-03-15 15:35:55,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:55,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:55,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:55,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246333003] [2022-03-15 15:35:55,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246333003] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:55,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:55,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:55,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687398339] [2022-03-15 15:35:55,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:55,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:55,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:55,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:55,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:55,763 INFO L87 Difference]: Start difference. First operand 5117 states and 24267 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:55,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:55,956 INFO L93 Difference]: Finished difference Result 11433 states and 50981 transitions. [2022-03-15 15:35:55,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:55,956 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:55,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:55,989 INFO L225 Difference]: With dead ends: 11433 [2022-03-15 15:35:55,989 INFO L226 Difference]: Without dead ends: 10891 [2022-03-15 15:35:55,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:55,989 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 175 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:55,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 199 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:56,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10891 states. [2022-03-15 15:35:56,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10891 to 5237. [2022-03-15 15:35:56,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.728609625668449) internal successors, (24759), 5236 states have internal predecessors, (24759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:56,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24759 transitions. [2022-03-15 15:35:56,131 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24759 transitions. Word has length 29 [2022-03-15 15:35:56,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:56,131 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 24759 transitions. [2022-03-15 15:35:56,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:56,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24759 transitions. [2022-03-15 15:35:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:56,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:56,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:56,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1073 [2022-03-15 15:35:56,141 INFO L402 AbstractCegarLoop]: === Iteration 1075 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:56,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:56,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1892164895, now seen corresponding path program 1070 times [2022-03-15 15:35:56,141 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:56,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776493630] [2022-03-15 15:35:56,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:56,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:56,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:56,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:56,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776493630] [2022-03-15 15:35:56,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776493630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:56,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:56,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:56,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832261973] [2022-03-15 15:35:56,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:56,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:56,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:56,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:56,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:56,296 INFO L87 Difference]: Start difference. First operand 5237 states and 24759 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:56,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:56,474 INFO L93 Difference]: Finished difference Result 11306 states and 50374 transitions. [2022-03-15 15:35:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:56,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:56,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:56,507 INFO L225 Difference]: With dead ends: 11306 [2022-03-15 15:35:56,507 INFO L226 Difference]: Without dead ends: 10811 [2022-03-15 15:35:56,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:56,508 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 165 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:56,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 205 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:56,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10811 states. [2022-03-15 15:35:56,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10811 to 5157. [2022-03-15 15:35:56,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.738363072148952) internal successors, (24431), 5156 states have internal predecessors, (24431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:56,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24431 transitions. [2022-03-15 15:35:56,653 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24431 transitions. Word has length 29 [2022-03-15 15:35:56,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:56,653 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24431 transitions. [2022-03-15 15:35:56,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:56,653 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24431 transitions. [2022-03-15 15:35:56,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:56,663 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:56,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:56,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1074 [2022-03-15 15:35:56,682 INFO L402 AbstractCegarLoop]: === Iteration 1076 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:56,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:56,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1537447421, now seen corresponding path program 1071 times [2022-03-15 15:35:56,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:56,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486521504] [2022-03-15 15:35:56,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:56,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:56,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:56,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:56,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486521504] [2022-03-15 15:35:56,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486521504] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:56,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:56,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:56,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134216341] [2022-03-15 15:35:56,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:56,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:56,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:56,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:56,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:56,829 INFO L87 Difference]: Start difference. First operand 5157 states and 24431 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:57,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:57,008 INFO L93 Difference]: Finished difference Result 11282 states and 50362 transitions. [2022-03-15 15:35:57,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:57,008 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:57,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:57,042 INFO L225 Difference]: With dead ends: 11282 [2022-03-15 15:35:57,042 INFO L226 Difference]: Without dead ends: 10740 [2022-03-15 15:35:57,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:57,043 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 173 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:57,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 195 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:57,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10740 states. [2022-03-15 15:35:57,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10740 to 5261. [2022-03-15 15:35:57,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.7184410646387835) internal successors, (24819), 5260 states have internal predecessors, (24819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:57,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24819 transitions. [2022-03-15 15:35:57,194 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24819 transitions. Word has length 29 [2022-03-15 15:35:57,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:57,194 INFO L470 AbstractCegarLoop]: Abstraction has 5261 states and 24819 transitions. [2022-03-15 15:35:57,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:57,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24819 transitions. [2022-03-15 15:35:57,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:57,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:57,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:57,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1075 [2022-03-15 15:35:57,206 INFO L402 AbstractCegarLoop]: === Iteration 1077 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:57,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:57,206 INFO L85 PathProgramCache]: Analyzing trace with hash 701613343, now seen corresponding path program 1072 times [2022-03-15 15:35:57,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:57,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429565349] [2022-03-15 15:35:57,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:57,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:57,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:57,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:57,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429565349] [2022-03-15 15:35:57,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429565349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:57,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:57,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:57,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104633601] [2022-03-15 15:35:57,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:57,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:57,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:57,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:57,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:57,350 INFO L87 Difference]: Start difference. First operand 5261 states and 24819 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:57,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:57,542 INFO L93 Difference]: Finished difference Result 10883 states and 48770 transitions. [2022-03-15 15:35:57,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:57,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:57,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:57,575 INFO L225 Difference]: With dead ends: 10883 [2022-03-15 15:35:57,575 INFO L226 Difference]: Without dead ends: 10316 [2022-03-15 15:35:57,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:57,575 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 153 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:57,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 207 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:57,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10316 states. [2022-03-15 15:35:57,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10316 to 5157. [2022-03-15 15:35:57,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.730605120248255) internal successors, (24391), 5156 states have internal predecessors, (24391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:57,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24391 transitions. [2022-03-15 15:35:57,718 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24391 transitions. Word has length 29 [2022-03-15 15:35:57,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:57,718 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24391 transitions. [2022-03-15 15:35:57,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:57,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24391 transitions. [2022-03-15 15:35:57,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:57,729 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:57,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:57,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1076 [2022-03-15 15:35:57,729 INFO L402 AbstractCegarLoop]: === Iteration 1078 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:57,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:57,729 INFO L85 PathProgramCache]: Analyzing trace with hash 876109087, now seen corresponding path program 1073 times [2022-03-15 15:35:57,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:57,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138407076] [2022-03-15 15:35:57,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:57,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:57,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:57,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:57,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138407076] [2022-03-15 15:35:57,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138407076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:57,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:57,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:57,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759277699] [2022-03-15 15:35:57,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:57,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:57,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:57,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:57,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:57,876 INFO L87 Difference]: Start difference. First operand 5157 states and 24391 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:58,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:58,058 INFO L93 Difference]: Finished difference Result 11099 states and 49527 transitions. [2022-03-15 15:35:58,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:58,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:58,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:58,091 INFO L225 Difference]: With dead ends: 11099 [2022-03-15 15:35:58,091 INFO L226 Difference]: Without dead ends: 10684 [2022-03-15 15:35:58,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:58,092 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 176 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:58,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 203 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:58,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2022-03-15 15:35:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 5205. [2022-03-15 15:35:58,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 4.720791698693313) internal successors, (24567), 5204 states have internal predecessors, (24567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:58,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 24567 transitions. [2022-03-15 15:35:58,240 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 24567 transitions. Word has length 29 [2022-03-15 15:35:58,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:58,240 INFO L470 AbstractCegarLoop]: Abstraction has 5205 states and 24567 transitions. [2022-03-15 15:35:58,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:58,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 24567 transitions. [2022-03-15 15:35:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:58,250 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:58,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:58,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1077 [2022-03-15 15:35:58,251 INFO L402 AbstractCegarLoop]: === Iteration 1079 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:58,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:58,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1785714045, now seen corresponding path program 1074 times [2022-03-15 15:35:58,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:58,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884495519] [2022-03-15 15:35:58,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:58,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:58,442 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:58,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884495519] [2022-03-15 15:35:58,442 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884495519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:58,442 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:58,442 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:58,442 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626262255] [2022-03-15 15:35:58,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:58,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:58,442 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:58,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:58,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:58,442 INFO L87 Difference]: Start difference. First operand 5205 states and 24567 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:58,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:58,718 INFO L93 Difference]: Finished difference Result 10827 states and 48518 transitions. [2022-03-15 15:35:58,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:58,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:58,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:58,751 INFO L225 Difference]: With dead ends: 10827 [2022-03-15 15:35:58,751 INFO L226 Difference]: Without dead ends: 10276 [2022-03-15 15:35:58,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:58,752 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 142 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:58,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 229 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:35:58,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10276 states. [2022-03-15 15:35:58,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10276 to 5117. [2022-03-15 15:35:58,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.739444878811572) internal successors, (24247), 5116 states have internal predecessors, (24247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:58,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24247 transitions. [2022-03-15 15:35:58,903 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24247 transitions. Word has length 29 [2022-03-15 15:35:58,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:58,904 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24247 transitions. [2022-03-15 15:35:58,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:58,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24247 transitions. [2022-03-15 15:35:58,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:58,914 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:58,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:58,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1078 [2022-03-15 15:35:58,914 INFO L402 AbstractCegarLoop]: === Iteration 1080 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:58,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:58,914 INFO L85 PathProgramCache]: Analyzing trace with hash -635035391, now seen corresponding path program 1075 times [2022-03-15 15:35:58,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:58,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401168839] [2022-03-15 15:35:58,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:58,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:59,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:59,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:59,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401168839] [2022-03-15 15:35:59,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401168839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:59,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:59,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:59,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971740036] [2022-03-15 15:35:59,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:59,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:59,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:59,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:59,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:59,069 INFO L87 Difference]: Start difference. First operand 5117 states and 24247 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:59,301 INFO L93 Difference]: Finished difference Result 11158 states and 49819 transitions. [2022-03-15 15:35:59,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:59,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:59,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:59,335 INFO L225 Difference]: With dead ends: 11158 [2022-03-15 15:35:59,335 INFO L226 Difference]: Without dead ends: 10681 [2022-03-15 15:35:59,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:59,335 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 160 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:59,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 239 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:59,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10681 states. [2022-03-15 15:35:59,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10681 to 5189. [2022-03-15 15:35:59,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.731495759444873) internal successors, (24547), 5188 states have internal predecessors, (24547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:59,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24547 transitions. [2022-03-15 15:35:59,491 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24547 transitions. Word has length 29 [2022-03-15 15:35:59,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:35:59,491 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24547 transitions. [2022-03-15 15:35:59,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:59,491 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24547 transitions. [2022-03-15 15:35:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:35:59,502 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:35:59,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:35:59,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1079 [2022-03-15 15:35:59,502 INFO L402 AbstractCegarLoop]: === Iteration 1081 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:35:59,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:35:59,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1481832353, now seen corresponding path program 1076 times [2022-03-15 15:35:59,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:35:59,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678486565] [2022-03-15 15:35:59,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:35:59,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:35:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:35:59,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:35:59,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:35:59,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678486565] [2022-03-15 15:35:59,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678486565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:35:59,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:35:59,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:35:59,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638978485] [2022-03-15 15:35:59,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:35:59,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:35:59,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:35:59,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:35:59,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:35:59,684 INFO L87 Difference]: Start difference. First operand 5189 states and 24547 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:35:59,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:35:59,878 INFO L93 Difference]: Finished difference Result 11096 states and 49502 transitions. [2022-03-15 15:35:59,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:35:59,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:35:59,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:35:59,912 INFO L225 Difference]: With dead ends: 11096 [2022-03-15 15:35:59,912 INFO L226 Difference]: Without dead ends: 10633 [2022-03-15 15:35:59,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:35:59,912 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 161 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:35:59,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 207 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:35:59,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10633 states. [2022-03-15 15:36:00,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10633 to 5141. [2022-03-15 15:36:00,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.736770428015564) internal successors, (24347), 5140 states have internal predecessors, (24347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:00,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24347 transitions. [2022-03-15 15:36:00,071 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24347 transitions. Word has length 29 [2022-03-15 15:36:00,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:00,071 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24347 transitions. [2022-03-15 15:36:00,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:00,071 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24347 transitions. [2022-03-15 15:36:00,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:00,082 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:00,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:00,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1080 [2022-03-15 15:36:00,082 INFO L402 AbstractCegarLoop]: === Iteration 1082 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:00,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:00,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1616968159, now seen corresponding path program 1077 times [2022-03-15 15:36:00,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:00,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711207401] [2022-03-15 15:36:00,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:00,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:00,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:00,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:00,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711207401] [2022-03-15 15:36:00,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711207401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:00,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:00,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:00,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279438782] [2022-03-15 15:36:00,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:00,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:00,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:00,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:00,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:00,204 INFO L87 Difference]: Start difference. First operand 5141 states and 24347 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:00,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:00,368 INFO L93 Difference]: Finished difference Result 11072 states and 49474 transitions. [2022-03-15 15:36:00,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:00,369 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:00,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:00,403 INFO L225 Difference]: With dead ends: 11072 [2022-03-15 15:36:00,404 INFO L226 Difference]: Without dead ends: 10595 [2022-03-15 15:36:00,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:00,404 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 159 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:00,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 197 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:00,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10595 states. [2022-03-15 15:36:00,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10595 to 5213. [2022-03-15 15:36:00,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.724290099769762) internal successors, (24623), 5212 states have internal predecessors, (24623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:00,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24623 transitions. [2022-03-15 15:36:00,567 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24623 transitions. Word has length 29 [2022-03-15 15:36:00,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:00,567 INFO L470 AbstractCegarLoop]: Abstraction has 5213 states and 24623 transitions. [2022-03-15 15:36:00,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:00,567 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24623 transitions. [2022-03-15 15:36:00,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:00,578 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:00,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:00,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1081 [2022-03-15 15:36:00,578 INFO L402 AbstractCegarLoop]: === Iteration 1083 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:00,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:00,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1191227871, now seen corresponding path program 1078 times [2022-03-15 15:36:00,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:00,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437786151] [2022-03-15 15:36:00,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:00,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:00,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:00,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437786151] [2022-03-15 15:36:00,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437786151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:00,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:00,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:00,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449692059] [2022-03-15 15:36:00,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:00,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:00,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:00,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:00,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:00,720 INFO L87 Difference]: Start difference. First operand 5213 states and 24623 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:00,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:00,949 INFO L93 Difference]: Finished difference Result 10738 states and 48172 transitions. [2022-03-15 15:36:00,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:00,949 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:00,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:00,985 INFO L225 Difference]: With dead ends: 10738 [2022-03-15 15:36:00,985 INFO L226 Difference]: Without dead ends: 10203 [2022-03-15 15:36:00,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:00,985 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:00,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 212 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:01,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10203 states. [2022-03-15 15:36:01,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10203 to 5141. [2022-03-15 15:36:01,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.732101167315175) internal successors, (24323), 5140 states have internal predecessors, (24323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:01,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24323 transitions. [2022-03-15 15:36:01,177 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24323 transitions. Word has length 29 [2022-03-15 15:36:01,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:01,177 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24323 transitions. [2022-03-15 15:36:01,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:01,177 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24323 transitions. [2022-03-15 15:36:01,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:01,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:01,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:01,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1082 [2022-03-15 15:36:01,187 INFO L402 AbstractCegarLoop]: === Iteration 1084 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:01,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:01,188 INFO L85 PathProgramCache]: Analyzing trace with hash 760220093, now seen corresponding path program 1079 times [2022-03-15 15:36:01,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:01,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146363066] [2022-03-15 15:36:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:01,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:01,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:01,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:01,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146363066] [2022-03-15 15:36:01,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146363066] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:01,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:01,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:01,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649122935] [2022-03-15 15:36:01,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:01,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:01,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:01,326 INFO L87 Difference]: Start difference. First operand 5141 states and 24323 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:01,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:01,543 INFO L93 Difference]: Finished difference Result 10986 states and 49057 transitions. [2022-03-15 15:36:01,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:01,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:01,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:01,576 INFO L225 Difference]: With dead ends: 10986 [2022-03-15 15:36:01,577 INFO L226 Difference]: Without dead ends: 10571 [2022-03-15 15:36:01,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:01,577 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 144 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:01,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 229 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:01,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10571 states. [2022-03-15 15:36:01,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10571 to 5189. [2022-03-15 15:36:01,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.722243639167309) internal successors, (24499), 5188 states have internal predecessors, (24499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:01,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24499 transitions. [2022-03-15 15:36:01,730 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24499 transitions. Word has length 29 [2022-03-15 15:36:01,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:01,730 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24499 transitions. [2022-03-15 15:36:01,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:01,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24499 transitions. [2022-03-15 15:36:01,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:01,740 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:01,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:01,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1083 [2022-03-15 15:36:01,740 INFO L402 AbstractCegarLoop]: === Iteration 1085 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:01,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:01,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1106797281, now seen corresponding path program 1080 times [2022-03-15 15:36:01,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:01,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91174580] [2022-03-15 15:36:01,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:01,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:01,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:01,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:01,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91174580] [2022-03-15 15:36:01,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91174580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:01,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:01,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:01,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145310708] [2022-03-15 15:36:01,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:01,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:01,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:01,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:01,908 INFO L87 Difference]: Start difference. First operand 5189 states and 24499 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:02,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:02,098 INFO L93 Difference]: Finished difference Result 10714 states and 48048 transitions. [2022-03-15 15:36:02,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:02,098 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:02,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:02,130 INFO L225 Difference]: With dead ends: 10714 [2022-03-15 15:36:02,130 INFO L226 Difference]: Without dead ends: 10139 [2022-03-15 15:36:02,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:02,131 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 140 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:02,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 204 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:02,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10139 states. [2022-03-15 15:36:02,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10139 to 5077. [2022-03-15 15:36:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5077 states, 5076 states have (on average 4.7551221434200155) internal successors, (24137), 5076 states have internal predecessors, (24137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:02,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5077 states to 5077 states and 24137 transitions. [2022-03-15 15:36:02,280 INFO L78 Accepts]: Start accepts. Automaton has 5077 states and 24137 transitions. Word has length 29 [2022-03-15 15:36:02,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:02,281 INFO L470 AbstractCegarLoop]: Abstraction has 5077 states and 24137 transitions. [2022-03-15 15:36:02,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:02,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5077 states and 24137 transitions. [2022-03-15 15:36:02,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:02,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:02,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:02,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1084 [2022-03-15 15:36:02,291 INFO L402 AbstractCegarLoop]: === Iteration 1086 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:02,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:02,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1975526075, now seen corresponding path program 1081 times [2022-03-15 15:36:02,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:02,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993282284] [2022-03-15 15:36:02,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:02,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:02,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:02,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:02,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993282284] [2022-03-15 15:36:02,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993282284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:02,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:02,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:02,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586741304] [2022-03-15 15:36:02,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:02,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:02,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:02,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:02,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:02,408 INFO L87 Difference]: Start difference. First operand 5077 states and 24137 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:02,572 INFO L93 Difference]: Finished difference Result 11024 states and 49284 transitions. [2022-03-15 15:36:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:02,572 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:02,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:02,605 INFO L225 Difference]: With dead ends: 11024 [2022-03-15 15:36:02,605 INFO L226 Difference]: Without dead ends: 10609 [2022-03-15 15:36:02,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:02,605 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 172 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:02,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 200 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:02,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10609 states. [2022-03-15 15:36:02,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10609 to 5213. [2022-03-15 15:36:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.749232540291635) internal successors, (24753), 5212 states have internal predecessors, (24753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:02,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24753 transitions. [2022-03-15 15:36:02,757 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24753 transitions. Word has length 29 [2022-03-15 15:36:02,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:02,757 INFO L470 AbstractCegarLoop]: Abstraction has 5213 states and 24753 transitions. [2022-03-15 15:36:02,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:02,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24753 transitions. [2022-03-15 15:36:02,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:02,767 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:02,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:02,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1085 [2022-03-15 15:36:02,768 INFO L402 AbstractCegarLoop]: === Iteration 1087 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:02,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:02,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1334237191, now seen corresponding path program 1082 times [2022-03-15 15:36:02,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:02,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453695480] [2022-03-15 15:36:02,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:02,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:02,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:02,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453695480] [2022-03-15 15:36:02,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453695480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:02,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:02,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:02,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950715484] [2022-03-15 15:36:02,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:02,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:02,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:02,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:02,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:02,881 INFO L87 Difference]: Start difference. First operand 5213 states and 24753 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:03,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:03,036 INFO L93 Difference]: Finished difference Result 11151 states and 49763 transitions. [2022-03-15 15:36:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:03,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:03,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:03,073 INFO L225 Difference]: With dead ends: 11151 [2022-03-15 15:36:03,073 INFO L226 Difference]: Without dead ends: 10529 [2022-03-15 15:36:03,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:03,073 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 172 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:03,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 208 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:03,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10529 states. [2022-03-15 15:36:03,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10529 to 5133. [2022-03-15 15:36:03,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 4.754676539360873) internal successors, (24401), 5132 states have internal predecessors, (24401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:03,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 24401 transitions. [2022-03-15 15:36:03,228 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 24401 transitions. Word has length 29 [2022-03-15 15:36:03,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:03,228 INFO L470 AbstractCegarLoop]: Abstraction has 5133 states and 24401 transitions. [2022-03-15 15:36:03,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:03,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 24401 transitions. [2022-03-15 15:36:03,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:03,239 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:03,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:03,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1086 [2022-03-15 15:36:03,239 INFO L402 AbstractCegarLoop]: === Iteration 1088 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:03,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:03,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1890738077, now seen corresponding path program 1083 times [2022-03-15 15:36:03,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:03,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330421715] [2022-03-15 15:36:03,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:03,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:03,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:03,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:03,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330421715] [2022-03-15 15:36:03,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330421715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:03,364 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:03,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:03,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968149922] [2022-03-15 15:36:03,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:03,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:03,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:03,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:03,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:03,365 INFO L87 Difference]: Start difference. First operand 5133 states and 24401 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:03,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:03,569 INFO L93 Difference]: Finished difference Result 10849 states and 48501 transitions. [2022-03-15 15:36:03,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:03,569 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:03,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:03,603 INFO L225 Difference]: With dead ends: 10849 [2022-03-15 15:36:03,603 INFO L226 Difference]: Without dead ends: 10434 [2022-03-15 15:36:03,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:03,604 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 185 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:03,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 206 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:03,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2022-03-15 15:36:03,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 5165. [2022-03-15 15:36:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.746901626646011) internal successors, (24513), 5164 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:03,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24513 transitions. [2022-03-15 15:36:03,762 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24513 transitions. Word has length 29 [2022-03-15 15:36:03,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:03,762 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24513 transitions. [2022-03-15 15:36:03,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:03,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24513 transitions. [2022-03-15 15:36:03,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:03,773 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:03,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:03,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1087 [2022-03-15 15:36:03,773 INFO L402 AbstractCegarLoop]: === Iteration 1089 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:03,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1223272163, now seen corresponding path program 1084 times [2022-03-15 15:36:03,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:03,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350176095] [2022-03-15 15:36:03,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:03,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:03,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:03,928 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:03,928 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350176095] [2022-03-15 15:36:03,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350176095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:03,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:03,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:03,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890800693] [2022-03-15 15:36:03,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:03,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:03,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:03,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:03,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:03,929 INFO L87 Difference]: Start difference. First operand 5165 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:04,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:04,128 INFO L93 Difference]: Finished difference Result 10849 states and 48469 transitions. [2022-03-15 15:36:04,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:04,129 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:04,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:04,161 INFO L225 Difference]: With dead ends: 10849 [2022-03-15 15:36:04,161 INFO L226 Difference]: Without dead ends: 10402 [2022-03-15 15:36:04,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:04,161 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 159 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:04,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 219 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:04,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10402 states. [2022-03-15 15:36:04,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10402 to 5133. [2022-03-15 15:36:04,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 4.751558846453625) internal successors, (24385), 5132 states have internal predecessors, (24385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 24385 transitions. [2022-03-15 15:36:04,305 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 24385 transitions. Word has length 29 [2022-03-15 15:36:04,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:04,305 INFO L470 AbstractCegarLoop]: Abstraction has 5133 states and 24385 transitions. [2022-03-15 15:36:04,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:04,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 24385 transitions. [2022-03-15 15:36:04,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:04,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:04,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:04,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1088 [2022-03-15 15:36:04,315 INFO L402 AbstractCegarLoop]: === Iteration 1090 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:04,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:04,315 INFO L85 PathProgramCache]: Analyzing trace with hash -2107358019, now seen corresponding path program 1085 times [2022-03-15 15:36:04,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:04,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807832903] [2022-03-15 15:36:04,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:04,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:04,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:04,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:04,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807832903] [2022-03-15 15:36:04,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807832903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:04,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:04,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:04,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841128439] [2022-03-15 15:36:04,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:04,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:04,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:04,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:04,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:04,489 INFO L87 Difference]: Start difference. First operand 5133 states and 24385 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:04,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:04,689 INFO L93 Difference]: Finished difference Result 11151 states and 49763 transitions. [2022-03-15 15:36:04,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:04,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:04,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:04,724 INFO L225 Difference]: With dead ends: 11151 [2022-03-15 15:36:04,724 INFO L226 Difference]: Without dead ends: 10609 [2022-03-15 15:36:04,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:04,724 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 173 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:04,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 214 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:04,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10609 states. [2022-03-15 15:36:04,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10609 to 5213. [2022-03-15 15:36:04,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.733883346124329) internal successors, (24673), 5212 states have internal predecessors, (24673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:04,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24673 transitions. [2022-03-15 15:36:04,870 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24673 transitions. Word has length 29 [2022-03-15 15:36:04,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:04,870 INFO L470 AbstractCegarLoop]: Abstraction has 5213 states and 24673 transitions. [2022-03-15 15:36:04,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:04,870 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24673 transitions. [2022-03-15 15:36:04,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:04,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:04,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:04,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1089 [2022-03-15 15:36:04,880 INFO L402 AbstractCegarLoop]: === Iteration 1091 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:04,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:04,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1980801311, now seen corresponding path program 1086 times [2022-03-15 15:36:04,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:04,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496181395] [2022-03-15 15:36:04,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:04,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:05,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:05,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:05,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496181395] [2022-03-15 15:36:05,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496181395] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:05,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:05,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:05,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023048459] [2022-03-15 15:36:05,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:05,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:05,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:05,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:05,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:05,072 INFO L87 Difference]: Start difference. First operand 5213 states and 24673 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:05,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:05,300 INFO L93 Difference]: Finished difference Result 11024 states and 49156 transitions. [2022-03-15 15:36:05,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:05,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:05,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:05,335 INFO L225 Difference]: With dead ends: 11024 [2022-03-15 15:36:05,335 INFO L226 Difference]: Without dead ends: 10497 [2022-03-15 15:36:05,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:05,335 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:05,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 262 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:36:05,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10497 states. [2022-03-15 15:36:05,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10497 to 5101. [2022-03-15 15:36:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.756274509803921) internal successors, (24257), 5100 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:05,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24257 transitions. [2022-03-15 15:36:05,482 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24257 transitions. Word has length 29 [2022-03-15 15:36:05,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:05,482 INFO L470 AbstractCegarLoop]: Abstraction has 5101 states and 24257 transitions. [2022-03-15 15:36:05,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:05,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24257 transitions. [2022-03-15 15:36:05,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:05,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:05,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:05,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1090 [2022-03-15 15:36:05,493 INFO L402 AbstractCegarLoop]: === Iteration 1092 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:05,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:05,493 INFO L85 PathProgramCache]: Analyzing trace with hash -517479005, now seen corresponding path program 1087 times [2022-03-15 15:36:05,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:05,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184966798] [2022-03-15 15:36:05,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:05,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:05,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:05,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:05,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184966798] [2022-03-15 15:36:05,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184966798] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:05,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:05,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:05,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846537441] [2022-03-15 15:36:05,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:05,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:05,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:05,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:05,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:05,669 INFO L87 Difference]: Start difference. First operand 5101 states and 24257 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:05,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:05,880 INFO L93 Difference]: Finished difference Result 11138 states and 49803 transitions. [2022-03-15 15:36:05,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:05,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:05,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:05,916 INFO L225 Difference]: With dead ends: 11138 [2022-03-15 15:36:05,916 INFO L226 Difference]: Without dead ends: 10723 [2022-03-15 15:36:05,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:05,916 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 173 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:05,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 199 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:05,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2022-03-15 15:36:06,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 5221. [2022-03-15 15:36:06,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.747318007662836) internal successors, (24781), 5220 states have internal predecessors, (24781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:06,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24781 transitions. [2022-03-15 15:36:06,075 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24781 transitions. Word has length 29 [2022-03-15 15:36:06,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:06,075 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24781 transitions. [2022-03-15 15:36:06,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:06,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24781 transitions. [2022-03-15 15:36:06,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:06,086 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:06,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:06,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1091 [2022-03-15 15:36:06,086 INFO L402 AbstractCegarLoop]: === Iteration 1093 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:06,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:06,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1502683035, now seen corresponding path program 1088 times [2022-03-15 15:36:06,087 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:06,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863342275] [2022-03-15 15:36:06,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:06,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:06,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:06,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863342275] [2022-03-15 15:36:06,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863342275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:06,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:06,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:06,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866673612] [2022-03-15 15:36:06,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:06,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:06,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:06,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:06,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:06,267 INFO L87 Difference]: Start difference. First operand 5221 states and 24781 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:06,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:06,449 INFO L93 Difference]: Finished difference Result 11265 states and 50282 transitions. [2022-03-15 15:36:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:06,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:06,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:06,482 INFO L225 Difference]: With dead ends: 11265 [2022-03-15 15:36:06,483 INFO L226 Difference]: Without dead ends: 10643 [2022-03-15 15:36:06,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:06,483 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 170 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:06,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 208 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:06,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10643 states. [2022-03-15 15:36:06,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10643 to 5141. [2022-03-15 15:36:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.751167315175097) internal successors, (24421), 5140 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24421 transitions. [2022-03-15 15:36:06,641 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24421 transitions. Word has length 29 [2022-03-15 15:36:06,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:06,642 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24421 transitions. [2022-03-15 15:36:06,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24421 transitions. [2022-03-15 15:36:06,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:06,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:06,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:06,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1092 [2022-03-15 15:36:06,654 INFO L402 AbstractCegarLoop]: === Iteration 1094 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:06,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:06,654 INFO L85 PathProgramCache]: Analyzing trace with hash -849622813, now seen corresponding path program 1089 times [2022-03-15 15:36:06,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:06,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349715030] [2022-03-15 15:36:06,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:06,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:06,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:06,850 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:06,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349715030] [2022-03-15 15:36:06,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349715030] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:06,850 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:06,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:06,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006357962] [2022-03-15 15:36:06,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:06,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:06,850 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:06,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:06,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:06,850 INFO L87 Difference]: Start difference. First operand 5141 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:07,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:07,074 INFO L93 Difference]: Finished difference Result 11039 states and 49356 transitions. [2022-03-15 15:36:07,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:07,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:07,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:07,110 INFO L225 Difference]: With dead ends: 11039 [2022-03-15 15:36:07,111 INFO L226 Difference]: Without dead ends: 10624 [2022-03-15 15:36:07,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:07,111 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 152 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:07,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 227 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:07,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10624 states. [2022-03-15 15:36:07,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10624 to 5189. [2022-03-15 15:36:07,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.741133384734002) internal successors, (24597), 5188 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:07,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24597 transitions. [2022-03-15 15:36:07,275 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24597 transitions. Word has length 29 [2022-03-15 15:36:07,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:07,275 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24597 transitions. [2022-03-15 15:36:07,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:07,275 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24597 transitions. [2022-03-15 15:36:07,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:07,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:07,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:07,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1093 [2022-03-15 15:36:07,286 INFO L402 AbstractCegarLoop]: === Iteration 1095 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:07,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:07,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1851679675, now seen corresponding path program 1090 times [2022-03-15 15:36:07,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:07,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131119210] [2022-03-15 15:36:07,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:07,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:07,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:07,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:07,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131119210] [2022-03-15 15:36:07,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131119210] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:07,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:07,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:07,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423363696] [2022-03-15 15:36:07,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:07,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:07,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:07,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:07,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:07,479 INFO L87 Difference]: Start difference. First operand 5189 states and 24597 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:07,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:07,674 INFO L93 Difference]: Finished difference Result 11099 states and 49572 transitions. [2022-03-15 15:36:07,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:07,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:07,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:07,707 INFO L225 Difference]: With dead ends: 11099 [2022-03-15 15:36:07,707 INFO L226 Difference]: Without dead ends: 10576 [2022-03-15 15:36:07,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:07,708 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 149 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:07,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 226 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:07,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10576 states. [2022-03-15 15:36:07,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10576 to 5141. [2022-03-15 15:36:07,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.746498054474708) internal successors, (24397), 5140 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:07,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24397 transitions. [2022-03-15 15:36:07,856 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24397 transitions. Word has length 29 [2022-03-15 15:36:07,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:07,856 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24397 transitions. [2022-03-15 15:36:07,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:07,856 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24397 transitions. [2022-03-15 15:36:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:07,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:07,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:07,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1094 [2022-03-15 15:36:07,866 INFO L402 AbstractCegarLoop]: === Iteration 1096 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:07,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:07,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1461576057, now seen corresponding path program 1091 times [2022-03-15 15:36:07,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:07,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700641055] [2022-03-15 15:36:07,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:07,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:08,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:08,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:08,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700641055] [2022-03-15 15:36:08,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700641055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:08,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:08,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:08,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653100257] [2022-03-15 15:36:08,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:08,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:08,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:08,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:08,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:08,030 INFO L87 Difference]: Start difference. First operand 5141 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:08,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:08,273 INFO L93 Difference]: Finished difference Result 11355 states and 50677 transitions. [2022-03-15 15:36:08,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:08,273 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:08,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:08,309 INFO L225 Difference]: With dead ends: 11355 [2022-03-15 15:36:08,309 INFO L226 Difference]: Without dead ends: 10813 [2022-03-15 15:36:08,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:08,310 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 175 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:08,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 211 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:08,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10813 states. [2022-03-15 15:36:08,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10813 to 5251. [2022-03-15 15:36:08,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.7241904761904765) internal successors, (24802), 5250 states have internal predecessors, (24802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:08,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24802 transitions. [2022-03-15 15:36:08,466 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24802 transitions. Word has length 29 [2022-03-15 15:36:08,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:08,466 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24802 transitions. [2022-03-15 15:36:08,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24802 transitions. [2022-03-15 15:36:08,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:08,476 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:08,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:08,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1095 [2022-03-15 15:36:08,477 INFO L402 AbstractCegarLoop]: === Iteration 1097 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:08,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:08,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2092439141, now seen corresponding path program 1092 times [2022-03-15 15:36:08,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:08,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098455676] [2022-03-15 15:36:08,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:08,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:08,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:08,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:08,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098455676] [2022-03-15 15:36:08,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098455676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:08,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:08,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:08,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939561826] [2022-03-15 15:36:08,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:08,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:08,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:08,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:08,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:08,680 INFO L87 Difference]: Start difference. First operand 5251 states and 24802 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:08,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:08,895 INFO L93 Difference]: Finished difference Result 11288 states and 50304 transitions. [2022-03-15 15:36:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:08,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:08,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:08,929 INFO L225 Difference]: With dead ends: 11288 [2022-03-15 15:36:08,930 INFO L226 Difference]: Without dead ends: 10663 [2022-03-15 15:36:08,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:08,930 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 177 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:08,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 196 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:08,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10663 states. [2022-03-15 15:36:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10663 to 5101. [2022-03-15 15:36:09,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.753137254901961) internal successors, (24241), 5100 states have internal predecessors, (24241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:09,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24241 transitions. [2022-03-15 15:36:09,088 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24241 transitions. Word has length 29 [2022-03-15 15:36:09,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:09,088 INFO L470 AbstractCegarLoop]: Abstraction has 5101 states and 24241 transitions. [2022-03-15 15:36:09,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:09,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24241 transitions. [2022-03-15 15:36:09,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:09,098 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:09,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:09,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1096 [2022-03-15 15:36:09,099 INFO L402 AbstractCegarLoop]: === Iteration 1098 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:09,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:09,099 INFO L85 PathProgramCache]: Analyzing trace with hash 989604993, now seen corresponding path program 1093 times [2022-03-15 15:36:09,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:09,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431122103] [2022-03-15 15:36:09,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:09,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:09,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:09,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431122103] [2022-03-15 15:36:09,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431122103] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:09,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:09,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:09,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312405379] [2022-03-15 15:36:09,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:09,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:09,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:09,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:09,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:09,268 INFO L87 Difference]: Start difference. First operand 5101 states and 24241 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:09,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:09,468 INFO L93 Difference]: Finished difference Result 10702 states and 47870 transitions. [2022-03-15 15:36:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:09,468 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:09,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:09,500 INFO L225 Difference]: With dead ends: 10702 [2022-03-15 15:36:09,500 INFO L226 Difference]: Without dead ends: 10287 [2022-03-15 15:36:09,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:09,500 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 170 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:09,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 229 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:09,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10287 states. [2022-03-15 15:36:09,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10287 to 5149. [2022-03-15 15:36:09,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.746114996114996) internal successors, (24433), 5148 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:09,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24433 transitions. [2022-03-15 15:36:09,652 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24433 transitions. Word has length 29 [2022-03-15 15:36:09,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:09,652 INFO L470 AbstractCegarLoop]: Abstraction has 5149 states and 24433 transitions. [2022-03-15 15:36:09,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:09,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24433 transitions. [2022-03-15 15:36:09,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:09,662 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:09,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:09,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1097 [2022-03-15 15:36:09,663 INFO L402 AbstractCegarLoop]: === Iteration 1099 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:09,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:09,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1657070907, now seen corresponding path program 1094 times [2022-03-15 15:36:09,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:09,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363814960] [2022-03-15 15:36:09,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:09,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:09,817 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:09,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363814960] [2022-03-15 15:36:09,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363814960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:09,817 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:09,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:09,817 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482638019] [2022-03-15 15:36:09,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:09,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:09,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:09,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:09,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:09,817 INFO L87 Difference]: Start difference. First operand 5149 states and 24433 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:09,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:09,983 INFO L93 Difference]: Finished difference Result 10702 states and 47838 transitions. [2022-03-15 15:36:09,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:09,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:09,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:10,017 INFO L225 Difference]: With dead ends: 10702 [2022-03-15 15:36:10,017 INFO L226 Difference]: Without dead ends: 10255 [2022-03-15 15:36:10,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:10,017 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 169 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:10,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 206 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:10,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10255 states. [2022-03-15 15:36:10,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10255 to 5117. [2022-03-15 15:36:10,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.750781860828773) internal successors, (24305), 5116 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:10,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24305 transitions. [2022-03-15 15:36:10,170 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24305 transitions. Word has length 29 [2022-03-15 15:36:10,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:10,170 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24305 transitions. [2022-03-15 15:36:10,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:10,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24305 transitions. [2022-03-15 15:36:10,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:10,181 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:10,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:10,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1098 [2022-03-15 15:36:10,181 INFO L402 AbstractCegarLoop]: === Iteration 1100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:10,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:10,181 INFO L85 PathProgramCache]: Analyzing trace with hash 508702947, now seen corresponding path program 1095 times [2022-03-15 15:36:10,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:10,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893958945] [2022-03-15 15:36:10,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:10,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:10,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:10,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893958945] [2022-03-15 15:36:10,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893958945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:10,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:10,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:10,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9325506] [2022-03-15 15:36:10,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:10,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:10,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:10,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:10,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:10,292 INFO L87 Difference]: Start difference. First operand 5117 states and 24305 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:10,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:10,454 INFO L93 Difference]: Finished difference Result 10778 states and 48198 transitions. [2022-03-15 15:36:10,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:10,454 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:10,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:10,488 INFO L225 Difference]: With dead ends: 10778 [2022-03-15 15:36:10,488 INFO L226 Difference]: Without dead ends: 10363 [2022-03-15 15:36:10,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:10,488 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 170 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:10,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 216 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:10,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2022-03-15 15:36:10,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5165. [2022-03-15 15:36:10,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.740704879938033) internal successors, (24481), 5164 states have internal predecessors, (24481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:10,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24481 transitions. [2022-03-15 15:36:10,644 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24481 transitions. Word has length 29 [2022-03-15 15:36:10,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:10,644 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24481 transitions. [2022-03-15 15:36:10,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:10,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24481 transitions. [2022-03-15 15:36:10,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:10,655 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:10,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:10,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1099 [2022-03-15 15:36:10,655 INFO L402 AbstractCegarLoop]: === Iteration 1101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:10,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:10,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1974792221, now seen corresponding path program 1096 times [2022-03-15 15:36:10,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:10,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315601657] [2022-03-15 15:36:10,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:10,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:10,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:10,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:10,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315601657] [2022-03-15 15:36:10,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315601657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:10,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:10,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:10,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507459462] [2022-03-15 15:36:10,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:10,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:10,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:10,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:10,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:10,765 INFO L87 Difference]: Start difference. First operand 5165 states and 24481 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:10,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:10,954 INFO L93 Difference]: Finished difference Result 10838 states and 48414 transitions. [2022-03-15 15:36:10,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:10,954 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:10,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:10,988 INFO L225 Difference]: With dead ends: 10838 [2022-03-15 15:36:10,988 INFO L226 Difference]: Without dead ends: 10315 [2022-03-15 15:36:10,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:10,988 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 139 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:10,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 255 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:11,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10315 states. [2022-03-15 15:36:11,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10315 to 5117. [2022-03-15 15:36:11,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.747654417513683) internal successors, (24289), 5116 states have internal predecessors, (24289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:11,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24289 transitions. [2022-03-15 15:36:11,144 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24289 transitions. Word has length 29 [2022-03-15 15:36:11,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:11,144 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24289 transitions. [2022-03-15 15:36:11,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:11,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24289 transitions. [2022-03-15 15:36:11,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:11,154 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:11,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:11,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1100 [2022-03-15 15:36:11,154 INFO L402 AbstractCegarLoop]: === Iteration 1102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:11,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:11,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1526374843, now seen corresponding path program 1097 times [2022-03-15 15:36:11,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:11,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304207666] [2022-03-15 15:36:11,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:11,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:11,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:11,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:11,266 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304207666] [2022-03-15 15:36:11,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304207666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:11,266 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:11,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:11,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998490918] [2022-03-15 15:36:11,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:11,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:11,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:11,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:11,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:11,266 INFO L87 Difference]: Start difference. First operand 5117 states and 24289 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:11,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:11,419 INFO L93 Difference]: Finished difference Result 10778 states and 48182 transitions. [2022-03-15 15:36:11,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:11,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:11,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:11,453 INFO L225 Difference]: With dead ends: 10778 [2022-03-15 15:36:11,453 INFO L226 Difference]: Without dead ends: 10363 [2022-03-15 15:36:11,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:11,453 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:11,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 208 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:11,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2022-03-15 15:36:11,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5165. [2022-03-15 15:36:11,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.737606506584044) internal successors, (24465), 5164 states have internal predecessors, (24465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:11,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24465 transitions. [2022-03-15 15:36:11,608 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24465 transitions. Word has length 29 [2022-03-15 15:36:11,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:11,608 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24465 transitions. [2022-03-15 15:36:11,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:11,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24465 transitions. [2022-03-15 15:36:11,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:11,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:11,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:11,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1101 [2022-03-15 15:36:11,619 INFO L402 AbstractCegarLoop]: === Iteration 1103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:11,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:11,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1687529827, now seen corresponding path program 1098 times [2022-03-15 15:36:11,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:11,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718631530] [2022-03-15 15:36:11,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:11,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:11,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:11,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:11,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718631530] [2022-03-15 15:36:11,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718631530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:11,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:11,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:11,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008846834] [2022-03-15 15:36:11,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:11,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:11,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:11,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:11,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:11,750 INFO L87 Difference]: Start difference. First operand 5165 states and 24465 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:11,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:11,958 INFO L93 Difference]: Finished difference Result 10838 states and 48398 transitions. [2022-03-15 15:36:11,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:11,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:11,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:11,993 INFO L225 Difference]: With dead ends: 10838 [2022-03-15 15:36:11,994 INFO L226 Difference]: Without dead ends: 10299 [2022-03-15 15:36:11,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:11,994 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:11,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 221 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:12,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2022-03-15 15:36:12,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 5101. [2022-03-15 15:36:12,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.751568627450981) internal successors, (24233), 5100 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:12,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24233 transitions. [2022-03-15 15:36:12,154 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24233 transitions. Word has length 29 [2022-03-15 15:36:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:12,154 INFO L470 AbstractCegarLoop]: Abstraction has 5101 states and 24233 transitions. [2022-03-15 15:36:12,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:12,154 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24233 transitions. [2022-03-15 15:36:12,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:12,166 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:12,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:12,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1102 [2022-03-15 15:36:12,166 INFO L402 AbstractCegarLoop]: === Iteration 1104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:12,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:12,166 INFO L85 PathProgramCache]: Analyzing trace with hash 832691675, now seen corresponding path program 1099 times [2022-03-15 15:36:12,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:12,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033026358] [2022-03-15 15:36:12,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:12,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:12,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:12,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:12,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033026358] [2022-03-15 15:36:12,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033026358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:12,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:12,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:12,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108712082] [2022-03-15 15:36:12,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:12,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:12,352 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:12,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:12,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:12,352 INFO L87 Difference]: Start difference. First operand 5101 states and 24233 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:12,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:12,582 INFO L93 Difference]: Finished difference Result 11265 states and 50306 transitions. [2022-03-15 15:36:12,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:12,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:12,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:12,620 INFO L225 Difference]: With dead ends: 11265 [2022-03-15 15:36:12,621 INFO L226 Difference]: Without dead ends: 10723 [2022-03-15 15:36:12,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:12,621 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 172 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:12,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 224 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:12,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2022-03-15 15:36:12,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 5221. [2022-03-15 15:36:12,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.736590038314176) internal successors, (24725), 5220 states have internal predecessors, (24725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:12,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24725 transitions. [2022-03-15 15:36:12,812 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24725 transitions. Word has length 29 [2022-03-15 15:36:12,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:12,812 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24725 transitions. [2022-03-15 15:36:12,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:12,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24725 transitions. [2022-03-15 15:36:12,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:12,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:12,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:12,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1103 [2022-03-15 15:36:12,825 INFO L402 AbstractCegarLoop]: === Iteration 1105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:12,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:12,825 INFO L85 PathProgramCache]: Analyzing trace with hash 625883709, now seen corresponding path program 1100 times [2022-03-15 15:36:12,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:12,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714569684] [2022-03-15 15:36:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:12,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:12,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:12,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:12,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714569684] [2022-03-15 15:36:12,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714569684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:12,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:12,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:12,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84561489] [2022-03-15 15:36:12,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:12,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:12,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:12,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:12,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:12,981 INFO L87 Difference]: Start difference. First operand 5221 states and 24725 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:13,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:13,180 INFO L93 Difference]: Finished difference Result 11138 states and 49699 transitions. [2022-03-15 15:36:13,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:13,181 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:13,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:13,217 INFO L225 Difference]: With dead ends: 11138 [2022-03-15 15:36:13,217 INFO L226 Difference]: Without dead ends: 10643 [2022-03-15 15:36:13,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:13,217 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 176 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:13,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 207 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:13,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10643 states. [2022-03-15 15:36:13,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10643 to 5141. [2022-03-15 15:36:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.746498054474708) internal successors, (24397), 5140 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:13,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24397 transitions. [2022-03-15 15:36:13,372 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24397 transitions. Word has length 29 [2022-03-15 15:36:13,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:13,372 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24397 transitions. [2022-03-15 15:36:13,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:13,372 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24397 transitions. [2022-03-15 15:36:13,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:13,383 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:13,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:13,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1104 [2022-03-15 15:36:13,383 INFO L402 AbstractCegarLoop]: === Iteration 1106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:13,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:13,383 INFO L85 PathProgramCache]: Analyzing trace with hash 351789629, now seen corresponding path program 1101 times [2022-03-15 15:36:13,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:13,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825086576] [2022-03-15 15:36:13,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:13,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:13,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:13,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:13,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825086576] [2022-03-15 15:36:13,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825086576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:13,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:13,569 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:13,569 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726976108] [2022-03-15 15:36:13,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:13,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:13,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:13,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:13,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:13,570 INFO L87 Difference]: Start difference. First operand 5141 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:13,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:13,773 INFO L93 Difference]: Finished difference Result 11355 states and 50677 transitions. [2022-03-15 15:36:13,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:13,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:13,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:13,807 INFO L225 Difference]: With dead ends: 11355 [2022-03-15 15:36:13,807 INFO L226 Difference]: Without dead ends: 10813 [2022-03-15 15:36:13,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:13,808 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 161 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:13,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 213 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:13,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10813 states. [2022-03-15 15:36:13,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10813 to 5251. [2022-03-15 15:36:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.7241904761904765) internal successors, (24802), 5250 states have internal predecessors, (24802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:13,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24802 transitions. [2022-03-15 15:36:13,953 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24802 transitions. Word has length 29 [2022-03-15 15:36:13,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:13,953 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24802 transitions. [2022-03-15 15:36:13,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:13,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24802 transitions. [2022-03-15 15:36:13,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:13,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:13,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:13,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1105 [2022-03-15 15:36:13,963 INFO L402 AbstractCegarLoop]: === Iteration 1107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:13,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:13,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1670640061, now seen corresponding path program 1102 times [2022-03-15 15:36:13,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:13,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646716083] [2022-03-15 15:36:13,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:13,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:14,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:14,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646716083] [2022-03-15 15:36:14,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646716083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:14,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:14,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:14,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749108043] [2022-03-15 15:36:14,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:14,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:14,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:14,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:14,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:14,139 INFO L87 Difference]: Start difference. First operand 5251 states and 24802 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:14,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:14,342 INFO L93 Difference]: Finished difference Result 11288 states and 50304 transitions. [2022-03-15 15:36:14,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:14,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:14,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:14,376 INFO L225 Difference]: With dead ends: 11288 [2022-03-15 15:36:14,376 INFO L226 Difference]: Without dead ends: 10703 [2022-03-15 15:36:14,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:14,377 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 159 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:14,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 207 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:14,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10703 states. [2022-03-15 15:36:14,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10703 to 5141. [2022-03-15 15:36:14,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.738715953307393) internal successors, (24357), 5140 states have internal predecessors, (24357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:14,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24357 transitions. [2022-03-15 15:36:14,522 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24357 transitions. Word has length 29 [2022-03-15 15:36:14,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:14,522 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24357 transitions. [2022-03-15 15:36:14,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:14,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24357 transitions. [2022-03-15 15:36:14,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:14,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:14,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:14,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1106 [2022-03-15 15:36:14,533 INFO L402 AbstractCegarLoop]: === Iteration 1108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:14,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:14,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1241133665, now seen corresponding path program 1103 times [2022-03-15 15:36:14,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:14,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992587386] [2022-03-15 15:36:14,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:14,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:14,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:14,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:14,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992587386] [2022-03-15 15:36:14,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992587386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:14,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:14,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:14,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131389801] [2022-03-15 15:36:14,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:14,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:14,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:14,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:14,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:14,691 INFO L87 Difference]: Start difference. First operand 5141 states and 24357 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:14,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:14,904 INFO L93 Difference]: Finished difference Result 11039 states and 49292 transitions. [2022-03-15 15:36:14,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:14,904 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:14,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:14,940 INFO L225 Difference]: With dead ends: 11039 [2022-03-15 15:36:14,940 INFO L226 Difference]: Without dead ends: 10624 [2022-03-15 15:36:14,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:14,940 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 163 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:14,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 243 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:14,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10624 states. [2022-03-15 15:36:15,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10624 to 5189. [2022-03-15 15:36:15,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.728797224363917) internal successors, (24533), 5188 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:15,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24533 transitions. [2022-03-15 15:36:15,099 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24533 transitions. Word has length 29 [2022-03-15 15:36:15,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:15,099 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24533 transitions. [2022-03-15 15:36:15,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:15,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24533 transitions. [2022-03-15 15:36:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:15,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:15,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:15,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1107 [2022-03-15 15:36:15,110 INFO L402 AbstractCegarLoop]: === Iteration 1109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:15,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:15,110 INFO L85 PathProgramCache]: Analyzing trace with hash -2087930627, now seen corresponding path program 1104 times [2022-03-15 15:36:15,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:15,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882837111] [2022-03-15 15:36:15,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:15,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:15,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:15,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:15,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882837111] [2022-03-15 15:36:15,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882837111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:15,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:15,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:15,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994611742] [2022-03-15 15:36:15,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:15,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:15,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:15,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:15,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:15,268 INFO L87 Difference]: Start difference. First operand 5189 states and 24533 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:15,543 INFO L93 Difference]: Finished difference Result 11099 states and 49508 transitions. [2022-03-15 15:36:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:15,544 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:15,577 INFO L225 Difference]: With dead ends: 11099 [2022-03-15 15:36:15,577 INFO L226 Difference]: Without dead ends: 10520 [2022-03-15 15:36:15,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:15,578 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:15,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 219 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:36:15,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2022-03-15 15:36:15,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 5085. [2022-03-15 15:36:15,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5085 states, 5084 states have (on average 4.755507474429583) internal successors, (24177), 5084 states have internal predecessors, (24177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:15,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5085 states to 5085 states and 24177 transitions. [2022-03-15 15:36:15,723 INFO L78 Accepts]: Start accepts. Automaton has 5085 states and 24177 transitions. Word has length 29 [2022-03-15 15:36:15,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:15,723 INFO L470 AbstractCegarLoop]: Abstraction has 5085 states and 24177 transitions. [2022-03-15 15:36:15,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:15,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5085 states and 24177 transitions. [2022-03-15 15:36:15,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:15,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:15,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:15,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1108 [2022-03-15 15:36:15,734 INFO L402 AbstractCegarLoop]: === Iteration 1110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:15,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:15,734 INFO L85 PathProgramCache]: Analyzing trace with hash 224865955, now seen corresponding path program 1105 times [2022-03-15 15:36:15,734 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:15,734 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132224216] [2022-03-15 15:36:15,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:15,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:15,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:15,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:15,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132224216] [2022-03-15 15:36:15,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132224216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:15,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:15,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:15,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661205660] [2022-03-15 15:36:15,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:15,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:15,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:15,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:15,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:15,902 INFO L87 Difference]: Start difference. First operand 5085 states and 24177 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:16,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:16,077 INFO L93 Difference]: Finished difference Result 10974 states and 49053 transitions. [2022-03-15 15:36:16,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:16,077 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:16,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:16,111 INFO L225 Difference]: With dead ends: 10974 [2022-03-15 15:36:16,111 INFO L226 Difference]: Without dead ends: 10559 [2022-03-15 15:36:16,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:16,112 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 190 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:16,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 188 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:16,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10559 states. [2022-03-15 15:36:16,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10559 to 5213. [2022-03-15 15:36:16,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.747697620874904) internal successors, (24745), 5212 states have internal predecessors, (24745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:16,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24745 transitions. [2022-03-15 15:36:16,267 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24745 transitions. Word has length 29 [2022-03-15 15:36:16,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:16,267 INFO L470 AbstractCegarLoop]: Abstraction has 5213 states and 24745 transitions. [2022-03-15 15:36:16,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:16,267 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24745 transitions. [2022-03-15 15:36:16,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:16,277 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:16,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:16,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1109 [2022-03-15 15:36:16,277 INFO L402 AbstractCegarLoop]: === Iteration 1111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:16,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:16,278 INFO L85 PathProgramCache]: Analyzing trace with hash -760338075, now seen corresponding path program 1106 times [2022-03-15 15:36:16,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:16,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363719170] [2022-03-15 15:36:16,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:16,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:16,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:16,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:16,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363719170] [2022-03-15 15:36:16,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363719170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:16,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:16,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:16,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986868532] [2022-03-15 15:36:16,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:16,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:16,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:16,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:16,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:16,421 INFO L87 Difference]: Start difference. First operand 5213 states and 24745 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:16,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:16,615 INFO L93 Difference]: Finished difference Result 11101 states and 49532 transitions. [2022-03-15 15:36:16,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:16,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:16,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:16,649 INFO L225 Difference]: With dead ends: 11101 [2022-03-15 15:36:16,649 INFO L226 Difference]: Without dead ends: 10479 [2022-03-15 15:36:16,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:16,649 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 163 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:16,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 218 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:16,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10479 states. [2022-03-15 15:36:16,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10479 to 5133. [2022-03-15 15:36:16,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 4.7531176929072485) internal successors, (24393), 5132 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:16,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 24393 transitions. [2022-03-15 15:36:16,798 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 24393 transitions. Word has length 29 [2022-03-15 15:36:16,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:16,798 INFO L470 AbstractCegarLoop]: Abstraction has 5133 states and 24393 transitions. [2022-03-15 15:36:16,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:16,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 24393 transitions. [2022-03-15 15:36:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:16,808 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:16,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:16,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1110 [2022-03-15 15:36:16,808 INFO L402 AbstractCegarLoop]: === Iteration 1112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:16,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:16,809 INFO L85 PathProgramCache]: Analyzing trace with hash 309653953, now seen corresponding path program 1107 times [2022-03-15 15:36:16,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:16,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766566050] [2022-03-15 15:36:16,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:16,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:16,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:16,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766566050] [2022-03-15 15:36:16,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766566050] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:16,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:16,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:16,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116202555] [2022-03-15 15:36:16,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:16,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:16,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:16,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:16,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:16,965 INFO L87 Difference]: Start difference. First operand 5133 states and 24393 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:17,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:17,163 INFO L93 Difference]: Finished difference Result 10799 states and 48270 transitions. [2022-03-15 15:36:17,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:17,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:17,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:17,200 INFO L225 Difference]: With dead ends: 10799 [2022-03-15 15:36:17,201 INFO L226 Difference]: Without dead ends: 10384 [2022-03-15 15:36:17,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:17,201 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:17,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 233 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:17,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10384 states. [2022-03-15 15:36:17,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10384 to 5165. [2022-03-15 15:36:17,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.745352439969016) internal successors, (24505), 5164 states have internal predecessors, (24505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:17,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24505 transitions. [2022-03-15 15:36:17,356 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24505 transitions. Word has length 29 [2022-03-15 15:36:17,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:17,356 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24505 transitions. [2022-03-15 15:36:17,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:17,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24505 transitions. [2022-03-15 15:36:17,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:17,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:17,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:17,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1111 [2022-03-15 15:36:17,366 INFO L402 AbstractCegarLoop]: === Iteration 1113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:17,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:17,367 INFO L85 PathProgramCache]: Analyzing trace with hash 977119867, now seen corresponding path program 1108 times [2022-03-15 15:36:17,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:17,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10283791] [2022-03-15 15:36:17,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:17,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:17,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:17,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:17,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10283791] [2022-03-15 15:36:17,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10283791] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:17,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:17,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:17,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799025464] [2022-03-15 15:36:17,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:17,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:17,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:17,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:17,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:17,481 INFO L87 Difference]: Start difference. First operand 5165 states and 24505 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:17,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:17,630 INFO L93 Difference]: Finished difference Result 10799 states and 48238 transitions. [2022-03-15 15:36:17,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:17,631 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:17,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:17,665 INFO L225 Difference]: With dead ends: 10799 [2022-03-15 15:36:17,665 INFO L226 Difference]: Without dead ends: 10352 [2022-03-15 15:36:17,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:17,666 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 171 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:17,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 196 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:17,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10352 states. [2022-03-15 15:36:17,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10352 to 5133. [2022-03-15 15:36:17,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5133 states, 5132 states have (on average 4.75) internal successors, (24377), 5132 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:17,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 24377 transitions. [2022-03-15 15:36:17,815 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 24377 transitions. Word has length 29 [2022-03-15 15:36:17,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:17,815 INFO L470 AbstractCegarLoop]: Abstraction has 5133 states and 24377 transitions. [2022-03-15 15:36:17,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:17,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 24377 transitions. [2022-03-15 15:36:17,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:17,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:17,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:17,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1112 [2022-03-15 15:36:17,825 INFO L402 AbstractCegarLoop]: === Iteration 1114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:17,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:17,826 INFO L85 PathProgramCache]: Analyzing trace with hash 93034011, now seen corresponding path program 1109 times [2022-03-15 15:36:17,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:17,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314387928] [2022-03-15 15:36:17,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:17,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:17,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:17,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:17,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314387928] [2022-03-15 15:36:17,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314387928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:17,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:17,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:17,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685018534] [2022-03-15 15:36:17,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:17,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:17,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:17,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:17,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:17,942 INFO L87 Difference]: Start difference. First operand 5133 states and 24377 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:18,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:18,089 INFO L93 Difference]: Finished difference Result 11101 states and 49532 transitions. [2022-03-15 15:36:18,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:18,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:18,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:18,122 INFO L225 Difference]: With dead ends: 11101 [2022-03-15 15:36:18,122 INFO L226 Difference]: Without dead ends: 10559 [2022-03-15 15:36:18,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:18,122 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 204 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:18,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 188 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:18,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10559 states. [2022-03-15 15:36:18,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10559 to 5213. [2022-03-15 15:36:18,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5213 states, 5212 states have (on average 4.732348426707598) internal successors, (24665), 5212 states have internal predecessors, (24665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:18,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 5213 states and 24665 transitions. [2022-03-15 15:36:18,279 INFO L78 Accepts]: Start accepts. Automaton has 5213 states and 24665 transitions. Word has length 29 [2022-03-15 15:36:18,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:18,279 INFO L470 AbstractCegarLoop]: Abstraction has 5213 states and 24665 transitions. [2022-03-15 15:36:18,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:18,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5213 states and 24665 transitions. [2022-03-15 15:36:18,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:18,290 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:18,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:18,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1113 [2022-03-15 15:36:18,290 INFO L402 AbstractCegarLoop]: === Iteration 1115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:18,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:18,290 INFO L85 PathProgramCache]: Analyzing trace with hash -113773955, now seen corresponding path program 1110 times [2022-03-15 15:36:18,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:18,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877352780] [2022-03-15 15:36:18,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:18,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:18,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:18,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877352780] [2022-03-15 15:36:18,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877352780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:18,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:18,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:18,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085669691] [2022-03-15 15:36:18,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:18,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:18,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:18,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:18,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:18,404 INFO L87 Difference]: Start difference. First operand 5213 states and 24665 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:18,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:18,611 INFO L93 Difference]: Finished difference Result 10974 states and 48925 transitions. [2022-03-15 15:36:18,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:18,611 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:18,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:18,647 INFO L225 Difference]: With dead ends: 10974 [2022-03-15 15:36:18,647 INFO L226 Difference]: Without dead ends: 10447 [2022-03-15 15:36:18,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:18,647 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 163 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:18,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 217 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:18,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10447 states. [2022-03-15 15:36:18,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10447 to 5101. [2022-03-15 15:36:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.754705882352941) internal successors, (24249), 5100 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:18,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24249 transitions. [2022-03-15 15:36:18,813 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24249 transitions. Word has length 29 [2022-03-15 15:36:18,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:18,813 INFO L470 AbstractCegarLoop]: Abstraction has 5101 states and 24249 transitions. [2022-03-15 15:36:18,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:18,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24249 transitions. [2022-03-15 15:36:18,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:18,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:18,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:18,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1114 [2022-03-15 15:36:18,823 INFO L402 AbstractCegarLoop]: === Iteration 1116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:18,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:18,824 INFO L85 PathProgramCache]: Analyzing trace with hash -311830877, now seen corresponding path program 1111 times [2022-03-15 15:36:18,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:18,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071869387] [2022-03-15 15:36:18,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:18,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:19,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:19,006 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:19,006 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071869387] [2022-03-15 15:36:19,006 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071869387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:19,006 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:19,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:19,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418997366] [2022-03-15 15:36:19,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:19,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:19,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:19,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:19,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:19,007 INFO L87 Difference]: Start difference. First operand 5101 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:19,222 INFO L93 Difference]: Finished difference Result 10990 states and 49141 transitions. [2022-03-15 15:36:19,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:19,222 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:19,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:19,255 INFO L225 Difference]: With dead ends: 10990 [2022-03-15 15:36:19,255 INFO L226 Difference]: Without dead ends: 10575 [2022-03-15 15:36:19,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:19,255 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:19,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 218 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:19,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2022-03-15 15:36:19,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 5221. [2022-03-15 15:36:19,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.745785440613027) internal successors, (24773), 5220 states have internal predecessors, (24773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:19,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24773 transitions. [2022-03-15 15:36:19,401 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24773 transitions. Word has length 29 [2022-03-15 15:36:19,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:19,402 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24773 transitions. [2022-03-15 15:36:19,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:19,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24773 transitions. [2022-03-15 15:36:19,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:19,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:19,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:19,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1115 [2022-03-15 15:36:19,412 INFO L402 AbstractCegarLoop]: === Iteration 1117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:19,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:19,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1297034907, now seen corresponding path program 1112 times [2022-03-15 15:36:19,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:19,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242879278] [2022-03-15 15:36:19,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:19,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:19,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:19,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:19,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242879278] [2022-03-15 15:36:19,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242879278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:19,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:19,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:19,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522890912] [2022-03-15 15:36:19,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:19,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:19,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:19,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:19,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:19,596 INFO L87 Difference]: Start difference. First operand 5221 states and 24773 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:19,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:19,798 INFO L93 Difference]: Finished difference Result 11117 states and 49620 transitions. [2022-03-15 15:36:19,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:19,798 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:19,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:19,832 INFO L225 Difference]: With dead ends: 11117 [2022-03-15 15:36:19,832 INFO L226 Difference]: Without dead ends: 10495 [2022-03-15 15:36:19,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:19,832 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:19,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 241 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:19,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10495 states. [2022-03-15 15:36:19,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10495 to 5141. [2022-03-15 15:36:19,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.749610894941634) internal successors, (24413), 5140 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:19,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24413 transitions. [2022-03-15 15:36:19,986 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24413 transitions. Word has length 29 [2022-03-15 15:36:19,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:19,987 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24413 transitions. [2022-03-15 15:36:19,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:19,987 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24413 transitions. [2022-03-15 15:36:19,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:19,997 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:19,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:19,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1116 [2022-03-15 15:36:19,997 INFO L402 AbstractCegarLoop]: === Iteration 1118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:19,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:19,998 INFO L85 PathProgramCache]: Analyzing trace with hash -910558749, now seen corresponding path program 1113 times [2022-03-15 15:36:19,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:19,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956616288] [2022-03-15 15:36:19,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:19,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:20,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:20,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:20,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956616288] [2022-03-15 15:36:20,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956616288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:20,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:20,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:20,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316079783] [2022-03-15 15:36:20,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:20,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:20,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:20,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:20,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:20,179 INFO L87 Difference]: Start difference. First operand 5141 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:20,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:20,371 INFO L93 Difference]: Finished difference Result 10783 states and 48254 transitions. [2022-03-15 15:36:20,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:20,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:20,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:20,405 INFO L225 Difference]: With dead ends: 10783 [2022-03-15 15:36:20,405 INFO L226 Difference]: Without dead ends: 10368 [2022-03-15 15:36:20,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:20,405 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 164 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:20,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 218 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:20,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10368 states. [2022-03-15 15:36:20,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10368 to 5189. [2022-03-15 15:36:20,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.739591364687741) internal successors, (24589), 5188 states have internal predecessors, (24589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:20,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24589 transitions. [2022-03-15 15:36:20,559 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24589 transitions. Word has length 29 [2022-03-15 15:36:20,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:20,559 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24589 transitions. [2022-03-15 15:36:20,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:20,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24589 transitions. [2022-03-15 15:36:20,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:20,570 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:20,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:20,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1117 [2022-03-15 15:36:20,570 INFO L402 AbstractCegarLoop]: === Iteration 1119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:20,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:20,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1151007813, now seen corresponding path program 1114 times [2022-03-15 15:36:20,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:20,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822185320] [2022-03-15 15:36:20,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:20,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:20,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:20,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:20,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822185320] [2022-03-15 15:36:20,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822185320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:20,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:20,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:20,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985190494] [2022-03-15 15:36:20,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:20,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:20,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:20,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:20,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:20,727 INFO L87 Difference]: Start difference. First operand 5189 states and 24589 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:20,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:20,937 INFO L93 Difference]: Finished difference Result 10511 states and 47245 transitions. [2022-03-15 15:36:20,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:20,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:20,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:20,969 INFO L225 Difference]: With dead ends: 10511 [2022-03-15 15:36:20,969 INFO L226 Difference]: Without dead ends: 10000 [2022-03-15 15:36:20,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:20,970 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:20,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 204 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:20,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10000 states. [2022-03-15 15:36:21,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10000 to 5141. [2022-03-15 15:36:21,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.744941634241245) internal successors, (24389), 5140 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:21,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24389 transitions. [2022-03-15 15:36:21,120 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24389 transitions. Word has length 29 [2022-03-15 15:36:21,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:21,120 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24389 transitions. [2022-03-15 15:36:21,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:21,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24389 transitions. [2022-03-15 15:36:21,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:21,131 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:21,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:21,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1118 [2022-03-15 15:36:21,131 INFO L402 AbstractCegarLoop]: === Iteration 1120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:21,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:21,131 INFO L85 PathProgramCache]: Analyzing trace with hash 196714119, now seen corresponding path program 1115 times [2022-03-15 15:36:21,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:21,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594144232] [2022-03-15 15:36:21,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:21,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:21,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:21,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:21,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594144232] [2022-03-15 15:36:21,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594144232] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:21,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:21,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:21,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036896413] [2022-03-15 15:36:21,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:21,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:21,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:21,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:21,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:21,292 INFO L87 Difference]: Start difference. First operand 5141 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:21,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:21,496 INFO L93 Difference]: Finished difference Result 10966 states and 49025 transitions. [2022-03-15 15:36:21,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:21,497 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:21,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:21,529 INFO L225 Difference]: With dead ends: 10966 [2022-03-15 15:36:21,530 INFO L226 Difference]: Without dead ends: 10424 [2022-03-15 15:36:21,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:21,530 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 164 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:21,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 222 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:21,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10424 states. [2022-03-15 15:36:21,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10424 to 5245. [2022-03-15 15:36:21,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.724828375286041) internal successors, (24777), 5244 states have internal predecessors, (24777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:21,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24777 transitions. [2022-03-15 15:36:21,682 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24777 transitions. Word has length 29 [2022-03-15 15:36:21,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:21,682 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 24777 transitions. [2022-03-15 15:36:21,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:21,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24777 transitions. [2022-03-15 15:36:21,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:21,693 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:21,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:21,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1119 [2022-03-15 15:36:21,693 INFO L402 AbstractCegarLoop]: === Iteration 1121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:21,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:21,694 INFO L85 PathProgramCache]: Analyzing trace with hash 758146917, now seen corresponding path program 1116 times [2022-03-15 15:36:21,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:21,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171120862] [2022-03-15 15:36:21,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:21,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:21,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:21,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:21,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171120862] [2022-03-15 15:36:21,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171120862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:21,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:21,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:21,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809251623] [2022-03-15 15:36:21,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:21,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:21,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:21,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:21,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:21,857 INFO L87 Difference]: Start difference. First operand 5245 states and 24777 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:22,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:22,079 INFO L93 Difference]: Finished difference Result 10567 states and 47433 transitions. [2022-03-15 15:36:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:22,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:22,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:22,112 INFO L225 Difference]: With dead ends: 10567 [2022-03-15 15:36:22,112 INFO L226 Difference]: Without dead ends: 9960 [2022-03-15 15:36:22,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:22,113 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:22,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 212 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:22,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9960 states. [2022-03-15 15:36:22,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9960 to 5101. [2022-03-15 15:36:22,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.751568627450981) internal successors, (24233), 5100 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:22,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24233 transitions. [2022-03-15 15:36:22,260 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24233 transitions. Word has length 29 [2022-03-15 15:36:22,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:22,260 INFO L470 AbstractCegarLoop]: Abstraction has 5101 states and 24233 transitions. [2022-03-15 15:36:22,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24233 transitions. [2022-03-15 15:36:22,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:22,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:22,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:22,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1120 [2022-03-15 15:36:22,271 INFO L402 AbstractCegarLoop]: === Iteration 1122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:22,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:22,271 INFO L85 PathProgramCache]: Analyzing trace with hash 558382465, now seen corresponding path program 1117 times [2022-03-15 15:36:22,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:22,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043146464] [2022-03-15 15:36:22,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:22,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:22,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:22,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:22,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043146464] [2022-03-15 15:36:22,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043146464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:22,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:22,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:22,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025214990] [2022-03-15 15:36:22,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:22,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:22,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:22,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:22,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:22,464 INFO L87 Difference]: Start difference. First operand 5101 states and 24233 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:22,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:22,661 INFO L93 Difference]: Finished difference Result 10608 states and 47455 transitions. [2022-03-15 15:36:22,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:22,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:22,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:22,694 INFO L225 Difference]: With dead ends: 10608 [2022-03-15 15:36:22,694 INFO L226 Difference]: Without dead ends: 10193 [2022-03-15 15:36:22,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:22,695 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 183 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:22,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 202 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:22,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10193 states. [2022-03-15 15:36:22,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10193 to 5149. [2022-03-15 15:36:22,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 4.744560994560994) internal successors, (24425), 5148 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:22,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 24425 transitions. [2022-03-15 15:36:22,844 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 24425 transitions. Word has length 29 [2022-03-15 15:36:22,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:22,844 INFO L470 AbstractCegarLoop]: Abstraction has 5149 states and 24425 transitions. [2022-03-15 15:36:22,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:22,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 24425 transitions. [2022-03-15 15:36:22,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:22,855 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:22,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:22,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1121 [2022-03-15 15:36:22,855 INFO L402 AbstractCegarLoop]: === Iteration 1123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:22,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:22,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1225848379, now seen corresponding path program 1118 times [2022-03-15 15:36:22,855 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:22,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608892272] [2022-03-15 15:36:22,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:22,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:22,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:22,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:22,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608892272] [2022-03-15 15:36:22,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608892272] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:22,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:22,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:22,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794476250] [2022-03-15 15:36:22,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:22,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:22,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:22,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:22,979 INFO L87 Difference]: Start difference. First operand 5149 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:23,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:23,149 INFO L93 Difference]: Finished difference Result 10608 states and 47423 transitions. [2022-03-15 15:36:23,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:23,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:23,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:23,182 INFO L225 Difference]: With dead ends: 10608 [2022-03-15 15:36:23,182 INFO L226 Difference]: Without dead ends: 10161 [2022-03-15 15:36:23,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:23,182 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 159 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:23,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 244 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:23,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2022-03-15 15:36:23,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 5117. [2022-03-15 15:36:23,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.749218139171227) internal successors, (24297), 5116 states have internal predecessors, (24297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:23,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24297 transitions. [2022-03-15 15:36:23,329 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24297 transitions. Word has length 29 [2022-03-15 15:36:23,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:23,329 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24297 transitions. [2022-03-15 15:36:23,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:23,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24297 transitions. [2022-03-15 15:36:23,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:23,340 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:23,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:23,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1122 [2022-03-15 15:36:23,340 INFO L402 AbstractCegarLoop]: === Iteration 1124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:23,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:23,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1308634909, now seen corresponding path program 1119 times [2022-03-15 15:36:23,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:23,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892447913] [2022-03-15 15:36:23,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:23,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:23,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:23,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:23,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892447913] [2022-03-15 15:36:23,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892447913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:23,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:23,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:23,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468527028] [2022-03-15 15:36:23,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:23,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:23,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:23,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:23,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:23,448 INFO L87 Difference]: Start difference. First operand 5117 states and 24297 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:23,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:23,635 INFO L93 Difference]: Finished difference Result 10576 states and 47343 transitions. [2022-03-15 15:36:23,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:23,635 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:23,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:23,669 INFO L225 Difference]: With dead ends: 10576 [2022-03-15 15:36:23,670 INFO L226 Difference]: Without dead ends: 10161 [2022-03-15 15:36:23,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:23,670 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:23,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 203 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:23,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2022-03-15 15:36:23,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 5165. [2022-03-15 15:36:23,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.739155693261038) internal successors, (24473), 5164 states have internal predecessors, (24473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:23,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24473 transitions. [2022-03-15 15:36:23,826 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24473 transitions. Word has length 29 [2022-03-15 15:36:23,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:23,826 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24473 transitions. [2022-03-15 15:36:23,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:23,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24473 transitions. [2022-03-15 15:36:23,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:23,837 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:23,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:23,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1123 [2022-03-15 15:36:23,837 INFO L402 AbstractCegarLoop]: === Iteration 1125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:23,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:23,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1027895267, now seen corresponding path program 1120 times [2022-03-15 15:36:23,837 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:23,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042612915] [2022-03-15 15:36:23,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:23,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:24,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:24,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:24,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042612915] [2022-03-15 15:36:24,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042612915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:24,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:24,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:24,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827426540] [2022-03-15 15:36:24,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:24,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:24,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:24,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:24,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:24,005 INFO L87 Difference]: Start difference. First operand 5165 states and 24473 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:24,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:24,213 INFO L93 Difference]: Finished difference Result 10304 states and 46334 transitions. [2022-03-15 15:36:24,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:24,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:24,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:24,246 INFO L225 Difference]: With dead ends: 10304 [2022-03-15 15:36:24,246 INFO L226 Difference]: Without dead ends: 9793 [2022-03-15 15:36:24,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:24,246 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 151 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:24,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 223 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:24,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2022-03-15 15:36:24,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 5117. [2022-03-15 15:36:24,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.746090695856138) internal successors, (24281), 5116 states have internal predecessors, (24281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:24,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24281 transitions. [2022-03-15 15:36:24,398 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24281 transitions. Word has length 29 [2022-03-15 15:36:24,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:24,398 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24281 transitions. [2022-03-15 15:36:24,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:24,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24281 transitions. [2022-03-15 15:36:24,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:24,409 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:24,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:24,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1124 [2022-03-15 15:36:24,409 INFO L402 AbstractCegarLoop]: === Iteration 1126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:24,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:24,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1465438907, now seen corresponding path program 1121 times [2022-03-15 15:36:24,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:24,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408733987] [2022-03-15 15:36:24,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:24,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:24,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:24,542 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:24,542 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408733987] [2022-03-15 15:36:24,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408733987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:24,542 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:24,543 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:24,543 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814356518] [2022-03-15 15:36:24,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:24,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:24,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:24,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:24,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:24,543 INFO L87 Difference]: Start difference. First operand 5117 states and 24281 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:24,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:24,766 INFO L93 Difference]: Finished difference Result 10576 states and 47327 transitions. [2022-03-15 15:36:24,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:24,767 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:24,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:24,799 INFO L225 Difference]: With dead ends: 10576 [2022-03-15 15:36:24,799 INFO L226 Difference]: Without dead ends: 10161 [2022-03-15 15:36:24,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:24,799 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 145 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:24,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 240 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:24,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2022-03-15 15:36:24,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 5165. [2022-03-15 15:36:24,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.736057319907049) internal successors, (24457), 5164 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:24,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24457 transitions. [2022-03-15 15:36:24,951 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24457 transitions. Word has length 29 [2022-03-15 15:36:24,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:24,951 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24457 transitions. [2022-03-15 15:36:24,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:24,951 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24457 transitions. [2022-03-15 15:36:24,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:24,961 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:24,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:24,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1125 [2022-03-15 15:36:24,961 INFO L402 AbstractCegarLoop]: === Iteration 1127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:24,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:24,962 INFO L85 PathProgramCache]: Analyzing trace with hash -29239651, now seen corresponding path program 1122 times [2022-03-15 15:36:24,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:24,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877938028] [2022-03-15 15:36:24,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:24,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:25,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:25,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:25,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877938028] [2022-03-15 15:36:25,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877938028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:25,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:25,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:25,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725158902] [2022-03-15 15:36:25,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:25,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:25,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:25,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:25,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:25,137 INFO L87 Difference]: Start difference. First operand 5165 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:25,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:25,316 INFO L93 Difference]: Finished difference Result 10304 states and 46318 transitions. [2022-03-15 15:36:25,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:25,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:25,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:25,348 INFO L225 Difference]: With dead ends: 10304 [2022-03-15 15:36:25,348 INFO L226 Difference]: Without dead ends: 9777 [2022-03-15 15:36:25,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:25,349 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 159 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:25,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 189 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:25,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9777 states. [2022-03-15 15:36:25,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9777 to 5101. [2022-03-15 15:36:25,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5100 states have (on average 4.75) internal successors, (24225), 5100 states have internal predecessors, (24225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:25,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 24225 transitions. [2022-03-15 15:36:25,491 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 24225 transitions. Word has length 29 [2022-03-15 15:36:25,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:25,491 INFO L470 AbstractCegarLoop]: Abstraction has 5101 states and 24225 transitions. [2022-03-15 15:36:25,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:25,491 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 24225 transitions. [2022-03-15 15:36:25,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:25,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:25,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:25,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1126 [2022-03-15 15:36:25,501 INFO L402 AbstractCegarLoop]: === Iteration 1128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:25,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:25,502 INFO L85 PathProgramCache]: Analyzing trace with hash 401469147, now seen corresponding path program 1123 times [2022-03-15 15:36:25,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:25,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053299341] [2022-03-15 15:36:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:25,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:25,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:25,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:25,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053299341] [2022-03-15 15:36:25,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053299341] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:25,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:25,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:25,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559009207] [2022-03-15 15:36:25,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:25,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:25,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:25,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:25,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:25,622 INFO L87 Difference]: Start difference. First operand 5101 states and 24225 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:25,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:25,772 INFO L93 Difference]: Finished difference Result 11117 states and 49644 transitions. [2022-03-15 15:36:25,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:25,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:25,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:25,805 INFO L225 Difference]: With dead ends: 11117 [2022-03-15 15:36:25,806 INFO L226 Difference]: Without dead ends: 10575 [2022-03-15 15:36:25,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:25,806 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 175 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:25,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 197 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:25,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2022-03-15 15:36:25,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 5221. [2022-03-15 15:36:25,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.735057471264367) internal successors, (24717), 5220 states have internal predecessors, (24717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:25,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24717 transitions. [2022-03-15 15:36:25,957 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24717 transitions. Word has length 29 [2022-03-15 15:36:25,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:25,958 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24717 transitions. [2022-03-15 15:36:25,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:25,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24717 transitions. [2022-03-15 15:36:25,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:25,968 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:25,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:25,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1127 [2022-03-15 15:36:25,968 INFO L402 AbstractCegarLoop]: === Iteration 1129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:25,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:25,969 INFO L85 PathProgramCache]: Analyzing trace with hash 194661181, now seen corresponding path program 1124 times [2022-03-15 15:36:25,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:25,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972851749] [2022-03-15 15:36:25,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:25,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:26,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:26,151 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:26,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972851749] [2022-03-15 15:36:26,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972851749] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:26,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:26,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:26,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399557509] [2022-03-15 15:36:26,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:26,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:26,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:26,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:26,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:26,152 INFO L87 Difference]: Start difference. First operand 5221 states and 24717 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:26,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:26,358 INFO L93 Difference]: Finished difference Result 10990 states and 49037 transitions. [2022-03-15 15:36:26,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:26,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:26,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:26,392 INFO L225 Difference]: With dead ends: 10990 [2022-03-15 15:36:26,392 INFO L226 Difference]: Without dead ends: 10495 [2022-03-15 15:36:26,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:26,392 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 161 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:26,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 215 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:26,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10495 states. [2022-03-15 15:36:26,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10495 to 5141. [2022-03-15 15:36:26,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.744941634241245) internal successors, (24389), 5140 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:26,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24389 transitions. [2022-03-15 15:36:26,541 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24389 transitions. Word has length 29 [2022-03-15 15:36:26,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:26,541 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24389 transitions. [2022-03-15 15:36:26,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:26,541 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24389 transitions. [2022-03-15 15:36:26,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:26,551 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:26,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:26,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1128 [2022-03-15 15:36:26,551 INFO L402 AbstractCegarLoop]: === Iteration 1130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:26,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:26,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1465548227, now seen corresponding path program 1125 times [2022-03-15 15:36:26,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:26,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821346480] [2022-03-15 15:36:26,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:26,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:26,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:26,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:26,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821346480] [2022-03-15 15:36:26,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821346480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:26,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:26,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:26,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83342128] [2022-03-15 15:36:26,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:26,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:26,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:26,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:26,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:26,778 INFO L87 Difference]: Start difference. First operand 5141 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:26,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:26,995 INFO L93 Difference]: Finished difference Result 10966 states and 49025 transitions. [2022-03-15 15:36:26,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:26,995 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:26,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:27,028 INFO L225 Difference]: With dead ends: 10966 [2022-03-15 15:36:27,028 INFO L226 Difference]: Without dead ends: 10424 [2022-03-15 15:36:27,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:27,028 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 151 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:27,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 236 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:27,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10424 states. [2022-03-15 15:36:27,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10424 to 5245. [2022-03-15 15:36:27,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.724828375286041) internal successors, (24777), 5244 states have internal predecessors, (24777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:27,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24777 transitions. [2022-03-15 15:36:27,176 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24777 transitions. Word has length 29 [2022-03-15 15:36:27,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:27,177 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 24777 transitions. [2022-03-15 15:36:27,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:27,177 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24777 transitions. [2022-03-15 15:36:27,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:27,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:27,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:27,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1129 [2022-03-15 15:36:27,187 INFO L402 AbstractCegarLoop]: === Iteration 1131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:27,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:27,187 INFO L85 PathProgramCache]: Analyzing trace with hash -966037059, now seen corresponding path program 1126 times [2022-03-15 15:36:27,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:27,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913566053] [2022-03-15 15:36:27,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:27,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:27,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:27,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:27,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913566053] [2022-03-15 15:36:27,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913566053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:27,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:27,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:27,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962417805] [2022-03-15 15:36:27,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:27,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:27,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:27,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:27,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:27,376 INFO L87 Difference]: Start difference. First operand 5245 states and 24777 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:27,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:27,576 INFO L93 Difference]: Finished difference Result 10567 states and 47433 transitions. [2022-03-15 15:36:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:27,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:27,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:27,608 INFO L225 Difference]: With dead ends: 10567 [2022-03-15 15:36:27,608 INFO L226 Difference]: Without dead ends: 10000 [2022-03-15 15:36:27,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:27,608 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 158 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:27,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 219 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:27,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10000 states. [2022-03-15 15:36:27,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10000 to 5141. [2022-03-15 15:36:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.73715953307393) internal successors, (24349), 5140 states have internal predecessors, (24349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:27,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24349 transitions. [2022-03-15 15:36:27,755 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24349 transitions. Word has length 29 [2022-03-15 15:36:27,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:27,756 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24349 transitions. [2022-03-15 15:36:27,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:27,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24349 transitions. [2022-03-15 15:36:27,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:27,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:27,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:27,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1130 [2022-03-15 15:36:27,766 INFO L402 AbstractCegarLoop]: === Iteration 1132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:27,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:27,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1236495775, now seen corresponding path program 1127 times [2022-03-15 15:36:27,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:27,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579613937] [2022-03-15 15:36:27,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:27,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:27,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:27,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:27,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579613937] [2022-03-15 15:36:27,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579613937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:27,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:27,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:27,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634985216] [2022-03-15 15:36:27,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:27,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:27,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:27,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:27,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:27,910 INFO L87 Difference]: Start difference. First operand 5141 states and 24349 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:28,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:28,079 INFO L93 Difference]: Finished difference Result 10783 states and 48190 transitions. [2022-03-15 15:36:28,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:28,079 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:28,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:28,112 INFO L225 Difference]: With dead ends: 10783 [2022-03-15 15:36:28,112 INFO L226 Difference]: Without dead ends: 10368 [2022-03-15 15:36:28,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:28,112 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 159 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:28,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 218 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:28,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10368 states. [2022-03-15 15:36:28,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10368 to 5189. [2022-03-15 15:36:28,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.727255204317657) internal successors, (24525), 5188 states have internal predecessors, (24525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:28,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24525 transitions. [2022-03-15 15:36:28,259 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24525 transitions. Word has length 29 [2022-03-15 15:36:28,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:28,260 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24525 transitions. [2022-03-15 15:36:28,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:28,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24525 transitions. [2022-03-15 15:36:28,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:28,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:28,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:28,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1131 [2022-03-15 15:36:28,270 INFO L402 AbstractCegarLoop]: === Iteration 1133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:28,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:28,270 INFO L85 PathProgramCache]: Analyzing trace with hash 2146100733, now seen corresponding path program 1128 times [2022-03-15 15:36:28,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:28,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485919915] [2022-03-15 15:36:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:28,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:28,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:28,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485919915] [2022-03-15 15:36:28,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485919915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:28,399 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:28,399 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:28,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622962153] [2022-03-15 15:36:28,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:28,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:28,399 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:28,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:28,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:28,399 INFO L87 Difference]: Start difference. First operand 5189 states and 24525 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:28,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:28,615 INFO L93 Difference]: Finished difference Result 10511 states and 47181 transitions. [2022-03-15 15:36:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:28,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:28,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:28,648 INFO L225 Difference]: With dead ends: 10511 [2022-03-15 15:36:28,648 INFO L226 Difference]: Without dead ends: 9944 [2022-03-15 15:36:28,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:28,648 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 159 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:28,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 202 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:28,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9944 states. [2022-03-15 15:36:28,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9944 to 5085. [2022-03-15 15:36:28,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5085 states, 5084 states have (on average 4.753933910306845) internal successors, (24169), 5084 states have internal predecessors, (24169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:28,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5085 states to 5085 states and 24169 transitions. [2022-03-15 15:36:28,792 INFO L78 Accepts]: Start accepts. Automaton has 5085 states and 24169 transitions. Word has length 29 [2022-03-15 15:36:28,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:28,792 INFO L470 AbstractCegarLoop]: Abstraction has 5085 states and 24169 transitions. [2022-03-15 15:36:28,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:28,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5085 states and 24169 transitions. [2022-03-15 15:36:28,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:28,802 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:28,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:28,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1132 [2022-03-15 15:36:28,802 INFO L402 AbstractCegarLoop]: === Iteration 1134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:28,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:28,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1435558015, now seen corresponding path program 1129 times [2022-03-15 15:36:28,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:28,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752439087] [2022-03-15 15:36:28,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:28,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:28,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:28,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:28,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752439087] [2022-03-15 15:36:28,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752439087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:28,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:28,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:28,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151051177] [2022-03-15 15:36:28,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:28,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:28,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:28,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:28,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:28,926 INFO L87 Difference]: Start difference. First operand 5085 states and 24169 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:29,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:29,096 INFO L93 Difference]: Finished difference Result 11242 states and 50331 transitions. [2022-03-15 15:36:29,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:29,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:29,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:29,131 INFO L225 Difference]: With dead ends: 11242 [2022-03-15 15:36:29,131 INFO L226 Difference]: Without dead ends: 10827 [2022-03-15 15:36:29,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:29,131 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 164 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:29,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 209 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:29,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10827 states. [2022-03-15 15:36:29,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10827 to 5225. [2022-03-15 15:36:29,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.748277182235834) internal successors, (24805), 5224 states have internal predecessors, (24805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:29,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24805 transitions. [2022-03-15 15:36:29,287 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24805 transitions. Word has length 29 [2022-03-15 15:36:29,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:29,287 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24805 transitions. [2022-03-15 15:36:29,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:29,288 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24805 transitions. [2022-03-15 15:36:29,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:29,298 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:29,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:29,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1133 [2022-03-15 15:36:29,298 INFO L402 AbstractCegarLoop]: === Iteration 1135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:29,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:29,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1874205251, now seen corresponding path program 1130 times [2022-03-15 15:36:29,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:29,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350752091] [2022-03-15 15:36:29,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:29,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:29,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:29,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:29,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350752091] [2022-03-15 15:36:29,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350752091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:29,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:29,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:29,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321850725] [2022-03-15 15:36:29,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:29,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:29,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:29,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:29,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:29,473 INFO L87 Difference]: Start difference. First operand 5225 states and 24805 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:29,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:29,651 INFO L93 Difference]: Finished difference Result 11369 states and 50810 transitions. [2022-03-15 15:36:29,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:29,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:29,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:29,686 INFO L225 Difference]: With dead ends: 11369 [2022-03-15 15:36:29,686 INFO L226 Difference]: Without dead ends: 10747 [2022-03-15 15:36:29,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:29,686 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 170 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:29,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 208 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:29,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10747 states. [2022-03-15 15:36:29,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10747 to 5145. [2022-03-15 15:36:29,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.752138413685848) internal successors, (24445), 5144 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24445 transitions. [2022-03-15 15:36:29,840 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24445 transitions. Word has length 29 [2022-03-15 15:36:29,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:29,840 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24445 transitions. [2022-03-15 15:36:29,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:29,840 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24445 transitions. [2022-03-15 15:36:29,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:29,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:29,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:29,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1134 [2022-03-15 15:36:29,851 INFO L402 AbstractCegarLoop]: === Iteration 1136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:29,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:29,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1767701823, now seen corresponding path program 1131 times [2022-03-15 15:36:29,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:29,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577087565] [2022-03-15 15:36:29,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:29,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:29,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:29,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577087565] [2022-03-15 15:36:29,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577087565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:29,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:29,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:29,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806411063] [2022-03-15 15:36:29,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:29,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:29,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:29,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:29,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:29,983 INFO L87 Difference]: Start difference. First operand 5145 states and 24445 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:30,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:30,167 INFO L93 Difference]: Finished difference Result 11143 states and 49884 transitions. [2022-03-15 15:36:30,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:30,167 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:30,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:30,201 INFO L225 Difference]: With dead ends: 11143 [2022-03-15 15:36:30,201 INFO L226 Difference]: Without dead ends: 10728 [2022-03-15 15:36:30,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:30,201 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 181 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:30,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 197 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:30,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10728 states. [2022-03-15 15:36:30,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10728 to 5193. [2022-03-15 15:36:30,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.742103235747304) internal successors, (24621), 5192 states have internal predecessors, (24621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:30,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24621 transitions. [2022-03-15 15:36:30,353 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24621 transitions. Word has length 29 [2022-03-15 15:36:30,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:30,353 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24621 transitions. [2022-03-15 15:36:30,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:30,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24621 transitions. [2022-03-15 15:36:30,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:30,364 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:30,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:30,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1135 [2022-03-15 15:36:30,364 INFO L402 AbstractCegarLoop]: === Iteration 1137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:30,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:30,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1525208611, now seen corresponding path program 1132 times [2022-03-15 15:36:30,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:30,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828065926] [2022-03-15 15:36:30,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:30,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:30,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:30,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:30,496 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828065926] [2022-03-15 15:36:30,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828065926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:30,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:30,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:30,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969268809] [2022-03-15 15:36:30,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:30,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:30,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:30,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:30,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:30,496 INFO L87 Difference]: Start difference. First operand 5193 states and 24621 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:30,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:30,704 INFO L93 Difference]: Finished difference Result 11203 states and 50100 transitions. [2022-03-15 15:36:30,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:30,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:30,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:30,739 INFO L225 Difference]: With dead ends: 11203 [2022-03-15 15:36:30,739 INFO L226 Difference]: Without dead ends: 10680 [2022-03-15 15:36:30,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:30,740 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 156 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:30,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 220 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:30,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2022-03-15 15:36:30,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 5145. [2022-03-15 15:36:30,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.747472783825817) internal successors, (24421), 5144 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:30,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24421 transitions. [2022-03-15 15:36:30,895 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24421 transitions. Word has length 29 [2022-03-15 15:36:30,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:30,895 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24421 transitions. [2022-03-15 15:36:30,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:30,895 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24421 transitions. [2022-03-15 15:36:30,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:30,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:30,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:30,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1136 [2022-03-15 15:36:30,906 INFO L402 AbstractCegarLoop]: === Iteration 1138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:30,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:30,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1915312229, now seen corresponding path program 1133 times [2022-03-15 15:36:30,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:30,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132127347] [2022-03-15 15:36:30,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:30,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:31,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:31,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:31,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132127347] [2022-03-15 15:36:31,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132127347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:31,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:31,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:31,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504121020] [2022-03-15 15:36:31,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:31,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:31,044 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:31,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:31,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:31,044 INFO L87 Difference]: Start difference. First operand 5145 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:31,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:31,216 INFO L93 Difference]: Finished difference Result 11459 states and 51205 transitions. [2022-03-15 15:36:31,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:31,217 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:31,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:31,252 INFO L225 Difference]: With dead ends: 11459 [2022-03-15 15:36:31,253 INFO L226 Difference]: Without dead ends: 10917 [2022-03-15 15:36:31,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:31,253 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 203 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:31,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 187 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:31,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10917 states. [2022-03-15 15:36:31,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10917 to 5255. [2022-03-15 15:36:31,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.72516178149981) internal successors, (24826), 5254 states have internal predecessors, (24826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24826 transitions. [2022-03-15 15:36:31,407 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24826 transitions. Word has length 29 [2022-03-15 15:36:31,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:31,407 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 24826 transitions. [2022-03-15 15:36:31,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:31,407 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24826 transitions. [2022-03-15 15:36:31,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:31,418 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:31,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:31,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1137 [2022-03-15 15:36:31,418 INFO L402 AbstractCegarLoop]: === Iteration 1139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:31,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:31,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1174360131, now seen corresponding path program 1134 times [2022-03-15 15:36:31,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:31,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247081855] [2022-03-15 15:36:31,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:31,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:31,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:31,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247081855] [2022-03-15 15:36:31,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247081855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:31,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:31,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:31,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615371254] [2022-03-15 15:36:31,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:31,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:31,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:31,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:31,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:31,558 INFO L87 Difference]: Start difference. First operand 5255 states and 24826 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:31,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:31,744 INFO L93 Difference]: Finished difference Result 11392 states and 50832 transitions. [2022-03-15 15:36:31,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:31,744 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:31,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:31,778 INFO L225 Difference]: With dead ends: 11392 [2022-03-15 15:36:31,779 INFO L226 Difference]: Without dead ends: 10767 [2022-03-15 15:36:31,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:31,779 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 186 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:31,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 191 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:31,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10767 states. [2022-03-15 15:36:31,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10767 to 5105. [2022-03-15 15:36:31,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.753330721003135) internal successors, (24261), 5104 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:31,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24261 transitions. [2022-03-15 15:36:31,933 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24261 transitions. Word has length 29 [2022-03-15 15:36:31,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:31,933 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24261 transitions. [2022-03-15 15:36:31,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:31,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24261 transitions. [2022-03-15 15:36:31,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:31,943 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:31,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:31,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1138 [2022-03-15 15:36:31,943 INFO L402 AbstractCegarLoop]: === Iteration 1140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:31,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:31,944 INFO L85 PathProgramCache]: Analyzing trace with hash 713632355, now seen corresponding path program 1135 times [2022-03-15 15:36:31,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:31,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940780590] [2022-03-15 15:36:31,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:31,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:32,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:32,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:32,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940780590] [2022-03-15 15:36:32,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940780590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:32,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:32,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:32,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050590665] [2022-03-15 15:36:32,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:32,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:32,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:32,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:32,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:32,087 INFO L87 Difference]: Start difference. First operand 5105 states and 24261 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:32,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:32,294 INFO L93 Difference]: Finished difference Result 11144 states and 49880 transitions. [2022-03-15 15:36:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:32,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:32,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:32,328 INFO L225 Difference]: With dead ends: 11144 [2022-03-15 15:36:32,328 INFO L226 Difference]: Without dead ends: 10729 [2022-03-15 15:36:32,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:32,329 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 173 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:32,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 223 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:32,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10729 states. [2022-03-15 15:36:32,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10729 to 5225. [2022-03-15 15:36:32,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.744448698315467) internal successors, (24785), 5224 states have internal predecessors, (24785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:32,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24785 transitions. [2022-03-15 15:36:32,486 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24785 transitions. Word has length 29 [2022-03-15 15:36:32,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:32,486 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24785 transitions. [2022-03-15 15:36:32,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:32,486 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24785 transitions. [2022-03-15 15:36:32,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:32,496 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:32,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:32,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1139 [2022-03-15 15:36:32,497 INFO L402 AbstractCegarLoop]: === Iteration 1141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:32,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:32,497 INFO L85 PathProgramCache]: Analyzing trace with hash -271571675, now seen corresponding path program 1136 times [2022-03-15 15:36:32,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:32,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466069756] [2022-03-15 15:36:32,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:32,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:32,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:32,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466069756] [2022-03-15 15:36:32,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466069756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:32,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:32,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:32,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903439712] [2022-03-15 15:36:32,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:32,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:32,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:32,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:32,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:32,608 INFO L87 Difference]: Start difference. First operand 5225 states and 24785 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:32,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:32,774 INFO L93 Difference]: Finished difference Result 11271 states and 50359 transitions. [2022-03-15 15:36:32,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:32,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:32,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:32,809 INFO L225 Difference]: With dead ends: 11271 [2022-03-15 15:36:32,810 INFO L226 Difference]: Without dead ends: 10649 [2022-03-15 15:36:32,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:32,810 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 146 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:32,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 242 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:32,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10649 states. [2022-03-15 15:36:32,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10649 to 5145. [2022-03-15 15:36:32,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.7482503888024885) internal successors, (24425), 5144 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:32,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24425 transitions. [2022-03-15 15:36:32,972 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24425 transitions. Word has length 29 [2022-03-15 15:36:32,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:32,972 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24425 transitions. [2022-03-15 15:36:32,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:32,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24425 transitions. [2022-03-15 15:36:32,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:32,982 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:32,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:32,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1140 [2022-03-15 15:36:32,982 INFO L402 AbstractCegarLoop]: === Iteration 1142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:32,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:32,982 INFO L85 PathProgramCache]: Analyzing trace with hash 113337025, now seen corresponding path program 1137 times [2022-03-15 15:36:32,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:32,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102121113] [2022-03-15 15:36:32,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:32,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:33,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:33,093 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:33,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102121113] [2022-03-15 15:36:33,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102121113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:33,093 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:33,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:33,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049378724] [2022-03-15 15:36:33,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:33,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:33,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:33,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:33,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:33,094 INFO L87 Difference]: Start difference. First operand 5145 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:33,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:33,264 INFO L93 Difference]: Finished difference Result 10937 states and 48993 transitions. [2022-03-15 15:36:33,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:33,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:33,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:33,299 INFO L225 Difference]: With dead ends: 10937 [2022-03-15 15:36:33,299 INFO L226 Difference]: Without dead ends: 10522 [2022-03-15 15:36:33,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:33,299 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 151 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:33,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 226 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:33,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10522 states. [2022-03-15 15:36:33,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10522 to 5193. [2022-03-15 15:36:33,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.738251155624037) internal successors, (24601), 5192 states have internal predecessors, (24601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:33,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24601 transitions. [2022-03-15 15:36:33,461 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24601 transitions. Word has length 29 [2022-03-15 15:36:33,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:33,461 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24601 transitions. [2022-03-15 15:36:33,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:33,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24601 transitions. [2022-03-15 15:36:33,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:33,472 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:33,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:33,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1141 [2022-03-15 15:36:33,472 INFO L402 AbstractCegarLoop]: === Iteration 1143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:33,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:33,472 INFO L85 PathProgramCache]: Analyzing trace with hash -2120063709, now seen corresponding path program 1138 times [2022-03-15 15:36:33,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:33,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350649879] [2022-03-15 15:36:33,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:33,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:33,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:33,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350649879] [2022-03-15 15:36:33,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350649879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:33,607 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:33,607 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:33,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277019484] [2022-03-15 15:36:33,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:33,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:33,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:33,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:33,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:33,608 INFO L87 Difference]: Start difference. First operand 5193 states and 24601 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:33,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:33,824 INFO L93 Difference]: Finished difference Result 10665 states and 47984 transitions. [2022-03-15 15:36:33,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:33,825 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:33,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:33,856 INFO L225 Difference]: With dead ends: 10665 [2022-03-15 15:36:33,857 INFO L226 Difference]: Without dead ends: 10154 [2022-03-15 15:36:33,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:33,857 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:33,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 216 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:33,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10154 states. [2022-03-15 15:36:33,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10154 to 5145. [2022-03-15 15:36:33,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.743584758942458) internal successors, (24401), 5144 states have internal predecessors, (24401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24401 transitions. [2022-03-15 15:36:34,007 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24401 transitions. Word has length 29 [2022-03-15 15:36:34,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:34,007 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24401 transitions. [2022-03-15 15:36:34,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:34,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24401 transitions. [2022-03-15 15:36:34,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:34,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:34,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:34,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1142 [2022-03-15 15:36:34,018 INFO L402 AbstractCegarLoop]: === Iteration 1144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:34,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:34,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1220609893, now seen corresponding path program 1139 times [2022-03-15 15:36:34,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:34,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638577958] [2022-03-15 15:36:34,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:34,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:34,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:34,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:34,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638577958] [2022-03-15 15:36:34,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638577958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:34,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:34,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:34,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746218190] [2022-03-15 15:36:34,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:34,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:34,204 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:34,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:34,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:34,204 INFO L87 Difference]: Start difference. First operand 5145 states and 24401 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:34,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:34,407 INFO L93 Difference]: Finished difference Result 11120 states and 49764 transitions. [2022-03-15 15:36:34,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:34,407 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:34,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:34,439 INFO L225 Difference]: With dead ends: 11120 [2022-03-15 15:36:34,439 INFO L226 Difference]: Without dead ends: 10578 [2022-03-15 15:36:34,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:34,440 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 145 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:34,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 240 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:34,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10578 states. [2022-03-15 15:36:34,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10578 to 5249. [2022-03-15 15:36:34,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.723513719512195) internal successors, (24789), 5248 states have internal predecessors, (24789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:34,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24789 transitions. [2022-03-15 15:36:34,587 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24789 transitions. Word has length 29 [2022-03-15 15:36:34,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:34,587 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 24789 transitions. [2022-03-15 15:36:34,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:34,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24789 transitions. [2022-03-15 15:36:34,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:34,597 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:34,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:34,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1143 [2022-03-15 15:36:34,598 INFO L402 AbstractCegarLoop]: === Iteration 1145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:34,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:34,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1782042691, now seen corresponding path program 1140 times [2022-03-15 15:36:34,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:34,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25789440] [2022-03-15 15:36:34,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:34,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:34,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:34,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:34,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25789440] [2022-03-15 15:36:34,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25789440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:34,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:34,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:34,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146831338] [2022-03-15 15:36:34,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:34,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:34,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:34,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:34,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:34,775 INFO L87 Difference]: Start difference. First operand 5249 states and 24789 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:34,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:34,980 INFO L93 Difference]: Finished difference Result 10721 states and 48172 transitions. [2022-03-15 15:36:34,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:34,980 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:34,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:35,012 INFO L225 Difference]: With dead ends: 10721 [2022-03-15 15:36:35,013 INFO L226 Difference]: Without dead ends: 10114 [2022-03-15 15:36:35,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:35,013 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 162 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:35,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 196 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:35,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10114 states. [2022-03-15 15:36:35,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10114 to 5105. [2022-03-15 15:36:35,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.7494122257053295) internal successors, (24241), 5104 states have internal predecessors, (24241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:35,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24241 transitions. [2022-03-15 15:36:35,155 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24241 transitions. Word has length 29 [2022-03-15 15:36:35,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:35,155 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24241 transitions. [2022-03-15 15:36:35,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:35,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24241 transitions. [2022-03-15 15:36:35,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:35,165 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:35,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:35,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1144 [2022-03-15 15:36:35,166 INFO L402 AbstractCegarLoop]: === Iteration 1146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:35,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:35,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1619569151, now seen corresponding path program 1141 times [2022-03-15 15:36:35,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:35,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343374252] [2022-03-15 15:36:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:35,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:35,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:35,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343374252] [2022-03-15 15:36:35,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343374252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:35,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:35,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:35,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075897841] [2022-03-15 15:36:35,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:35,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:35,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:35,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:35,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:35,348 INFO L87 Difference]: Start difference. First operand 5105 states and 24241 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:35,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:35,537 INFO L93 Difference]: Finished difference Result 10930 states and 48966 transitions. [2022-03-15 15:36:35,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:35,538 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:35,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:35,572 INFO L225 Difference]: With dead ends: 10930 [2022-03-15 15:36:35,572 INFO L226 Difference]: Without dead ends: 10515 [2022-03-15 15:36:35,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:35,573 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 175 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:35,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 209 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:35,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10515 states. [2022-03-15 15:36:35,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10515 to 5177. [2022-03-15 15:36:35,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.741306027820711) internal successors, (24541), 5176 states have internal predecessors, (24541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:35,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24541 transitions. [2022-03-15 15:36:35,727 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24541 transitions. Word has length 29 [2022-03-15 15:36:35,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:35,727 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24541 transitions. [2022-03-15 15:36:35,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:35,727 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24541 transitions. [2022-03-15 15:36:35,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:35,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:35,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:35,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1145 [2022-03-15 15:36:35,737 INFO L402 AbstractCegarLoop]: === Iteration 1147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:35,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:35,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1673341283, now seen corresponding path program 1142 times [2022-03-15 15:36:35,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:35,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730798826] [2022-03-15 15:36:35,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:35,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:35,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:35,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730798826] [2022-03-15 15:36:35,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730798826] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:35,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:35,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:35,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489590949] [2022-03-15 15:36:35,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:35,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:35,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:35,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:35,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:35,855 INFO L87 Difference]: Start difference. First operand 5177 states and 24541 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:36,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:36,026 INFO L93 Difference]: Finished difference Result 10990 states and 49182 transitions. [2022-03-15 15:36:36,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:36,026 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:36,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:36,059 INFO L225 Difference]: With dead ends: 10990 [2022-03-15 15:36:36,059 INFO L226 Difference]: Without dead ends: 10467 [2022-03-15 15:36:36,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:36,060 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 161 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:36,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 233 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:36,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2022-03-15 15:36:36,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 5129. [2022-03-15 15:36:36,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.746684867394696) internal successors, (24341), 5128 states have internal predecessors, (24341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:36,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24341 transitions. [2022-03-15 15:36:36,281 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24341 transitions. Word has length 29 [2022-03-15 15:36:36,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:36,281 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24341 transitions. [2022-03-15 15:36:36,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:36,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24341 transitions. [2022-03-15 15:36:36,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:36,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:36,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:36,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1146 [2022-03-15 15:36:36,293 INFO L402 AbstractCegarLoop]: === Iteration 1148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:36,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:36,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1501438435, now seen corresponding path program 1143 times [2022-03-15 15:36:36,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:36,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797316841] [2022-03-15 15:36:36,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:36,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:36,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:36,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:36,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797316841] [2022-03-15 15:36:36,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797316841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:36,398 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:36,398 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:36,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573385391] [2022-03-15 15:36:36,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:36,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:36,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:36,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:36,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:36,398 INFO L87 Difference]: Start difference. First operand 5129 states and 24341 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:36,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:36,567 INFO L93 Difference]: Finished difference Result 10822 states and 48502 transitions. [2022-03-15 15:36:36,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:36,567 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:36,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:36,600 INFO L225 Difference]: With dead ends: 10822 [2022-03-15 15:36:36,600 INFO L226 Difference]: Without dead ends: 10407 [2022-03-15 15:36:36,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:36,600 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 171 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:36,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 216 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:36,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10407 states. [2022-03-15 15:36:36,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10407 to 5177. [2022-03-15 15:36:36,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.736669242658423) internal successors, (24517), 5176 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:36,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24517 transitions. [2022-03-15 15:36:36,750 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24517 transitions. Word has length 29 [2022-03-15 15:36:36,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:36,750 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24517 transitions. [2022-03-15 15:36:36,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:36,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24517 transitions. [2022-03-15 15:36:36,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:36,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:36,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:36,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1147 [2022-03-15 15:36:36,761 INFO L402 AbstractCegarLoop]: === Iteration 1149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:36,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:36,761 INFO L85 PathProgramCache]: Analyzing trace with hash 812284003, now seen corresponding path program 1144 times [2022-03-15 15:36:36,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:36,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88783439] [2022-03-15 15:36:36,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:36,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:36,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:36,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88783439] [2022-03-15 15:36:36,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88783439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:36,875 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:36,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:36,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357165330] [2022-03-15 15:36:36,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:36,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:36,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:36,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:36,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:36,876 INFO L87 Difference]: Start difference. First operand 5177 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:37,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:37,042 INFO L93 Difference]: Finished difference Result 10550 states and 47493 transitions. [2022-03-15 15:36:37,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:37,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:37,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:37,076 INFO L225 Difference]: With dead ends: 10550 [2022-03-15 15:36:37,076 INFO L226 Difference]: Without dead ends: 10039 [2022-03-15 15:36:37,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:37,076 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:37,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 204 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:37,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10039 states. [2022-03-15 15:36:37,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10039 to 5129. [2022-03-15 15:36:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.7420046801872076) internal successors, (24317), 5128 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:37,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24317 transitions. [2022-03-15 15:36:37,220 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24317 transitions. Word has length 29 [2022-03-15 15:36:37,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:37,220 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24317 transitions. [2022-03-15 15:36:37,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:37,221 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24317 transitions. [2022-03-15 15:36:37,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:37,231 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:37,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:37,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1148 [2022-03-15 15:36:37,231 INFO L402 AbstractCegarLoop]: === Iteration 1150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:37,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:37,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1436083387, now seen corresponding path program 1145 times [2022-03-15 15:36:37,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:37,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645830082] [2022-03-15 15:36:37,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:37,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:37,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:37,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645830082] [2022-03-15 15:36:37,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645830082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:37,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:37,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:37,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67724822] [2022-03-15 15:36:37,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:37,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:37,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:37,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:37,351 INFO L87 Difference]: Start difference. First operand 5129 states and 24317 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:37,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:37,552 INFO L93 Difference]: Finished difference Result 10906 states and 48866 transitions. [2022-03-15 15:36:37,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:37,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:37,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:37,587 INFO L225 Difference]: With dead ends: 10906 [2022-03-15 15:36:37,587 INFO L226 Difference]: Without dead ends: 10431 [2022-03-15 15:36:37,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:37,587 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 156 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:37,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 221 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:37,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2022-03-15 15:36:37,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 5201. [2022-03-15 15:36:37,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.7294230769230765) internal successors, (24593), 5200 states have internal predecessors, (24593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:37,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24593 transitions. [2022-03-15 15:36:37,744 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24593 transitions. Word has length 29 [2022-03-15 15:36:37,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:37,744 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24593 transitions. [2022-03-15 15:36:37,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:37,745 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24593 transitions. [2022-03-15 15:36:37,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:37,755 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:37,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:37,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1149 [2022-03-15 15:36:37,755 INFO L402 AbstractCegarLoop]: === Iteration 1151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:37,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:37,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1466739363, now seen corresponding path program 1146 times [2022-03-15 15:36:37,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:37,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271823814] [2022-03-15 15:36:37,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:37,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:37,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:37,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:37,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271823814] [2022-03-15 15:36:37,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271823814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:37,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:37,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:37,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449436096] [2022-03-15 15:36:37,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:37,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:37,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:37,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:37,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:37,930 INFO L87 Difference]: Start difference. First operand 5201 states and 24593 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:38,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:38,120 INFO L93 Difference]: Finished difference Result 10574 states and 47569 transitions. [2022-03-15 15:36:38,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:38,120 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:38,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:38,153 INFO L225 Difference]: With dead ends: 10574 [2022-03-15 15:36:38,153 INFO L226 Difference]: Without dead ends: 10015 [2022-03-15 15:36:38,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:38,154 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 157 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:38,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 188 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:38,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10015 states. [2022-03-15 15:36:38,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10015 to 5105. [2022-03-15 15:36:38,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.747061128526646) internal successors, (24229), 5104 states have internal predecessors, (24229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:38,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24229 transitions. [2022-03-15 15:36:38,304 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24229 transitions. Word has length 29 [2022-03-15 15:36:38,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:38,304 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24229 transitions. [2022-03-15 15:36:38,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:38,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24229 transitions. [2022-03-15 15:36:38,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:38,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:38,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:38,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1150 [2022-03-15 15:36:38,315 INFO L402 AbstractCegarLoop]: === Iteration 1152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:38,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:38,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1405917945, now seen corresponding path program 1147 times [2022-03-15 15:36:38,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:38,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280299834] [2022-03-15 15:36:38,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:38,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:38,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:38,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:38,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280299834] [2022-03-15 15:36:38,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280299834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:38,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:38,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:38,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680223467] [2022-03-15 15:36:38,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:38,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:38,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:38,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:38,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:38,453 INFO L87 Difference]: Start difference. First operand 5105 states and 24229 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:38,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:38,705 INFO L93 Difference]: Finished difference Result 11457 states and 51242 transitions. [2022-03-15 15:36:38,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:38,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:38,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:38,739 INFO L225 Difference]: With dead ends: 11457 [2022-03-15 15:36:38,740 INFO L226 Difference]: Without dead ends: 10915 [2022-03-15 15:36:38,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:38,740 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 150 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:38,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 235 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:36:38,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2022-03-15 15:36:38,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 5267. [2022-03-15 15:36:38,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 4.729586023547284) internal successors, (24906), 5266 states have internal predecessors, (24906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:38,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 24906 transitions. [2022-03-15 15:36:38,901 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 24906 transitions. Word has length 29 [2022-03-15 15:36:38,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:38,901 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 24906 transitions. [2022-03-15 15:36:38,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:38,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 24906 transitions. [2022-03-15 15:36:38,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:38,912 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:38,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:38,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1151 [2022-03-15 15:36:38,912 INFO L402 AbstractCegarLoop]: === Iteration 1153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:38,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:38,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2146870043, now seen corresponding path program 1148 times [2022-03-15 15:36:38,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:38,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033108344] [2022-03-15 15:36:38,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:38,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:39,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:39,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:39,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033108344] [2022-03-15 15:36:39,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033108344] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:39,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:39,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:39,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965662293] [2022-03-15 15:36:39,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:39,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:39,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:39,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:39,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:39,101 INFO L87 Difference]: Start difference. First operand 5267 states and 24906 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:39,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:39,318 INFO L93 Difference]: Finished difference Result 11390 states and 50869 transitions. [2022-03-15 15:36:39,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:39,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:39,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:39,354 INFO L225 Difference]: With dead ends: 11390 [2022-03-15 15:36:39,354 INFO L226 Difference]: Without dead ends: 10805 [2022-03-15 15:36:39,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:39,355 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 191 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:39,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 194 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:39,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10805 states. [2022-03-15 15:36:39,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10805 to 5157. [2022-03-15 15:36:39,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.741854150504267) internal successors, (24449), 5156 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:39,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24449 transitions. [2022-03-15 15:36:39,516 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24449 transitions. Word has length 29 [2022-03-15 15:36:39,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:39,516 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24449 transitions. [2022-03-15 15:36:39,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:39,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24449 transitions. [2022-03-15 15:36:39,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:39,527 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:39,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:39,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1152 [2022-03-15 15:36:39,527 INFO L402 AbstractCegarLoop]: === Iteration 1154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:39,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:39,527 INFO L85 PathProgramCache]: Analyzing trace with hash 772969701, now seen corresponding path program 1149 times [2022-03-15 15:36:39,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:39,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85675514] [2022-03-15 15:36:39,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:39,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:39,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:39,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85675514] [2022-03-15 15:36:39,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85675514] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:39,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:39,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:39,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960660037] [2022-03-15 15:36:39,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:39,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:39,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:39,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:39,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:39,692 INFO L87 Difference]: Start difference. First operand 5157 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:39,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:39,937 INFO L93 Difference]: Finished difference Result 11216 states and 50200 transitions. [2022-03-15 15:36:39,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:39,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:39,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:39,972 INFO L225 Difference]: With dead ends: 11216 [2022-03-15 15:36:39,973 INFO L226 Difference]: Without dead ends: 10674 [2022-03-15 15:36:39,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:39,973 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 154 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:39,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 221 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:36:39,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10674 states. [2022-03-15 15:36:40,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10674 to 5261. [2022-03-15 15:36:40,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.721863117870722) internal successors, (24837), 5260 states have internal predecessors, (24837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:40,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24837 transitions. [2022-03-15 15:36:40,131 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24837 transitions. Word has length 29 [2022-03-15 15:36:40,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:40,131 INFO L470 AbstractCegarLoop]: Abstraction has 5261 states and 24837 transitions. [2022-03-15 15:36:40,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:40,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24837 transitions. [2022-03-15 15:36:40,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:40,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:40,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:40,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1153 [2022-03-15 15:36:40,142 INFO L402 AbstractCegarLoop]: === Iteration 1155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:40,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:40,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1663824411, now seen corresponding path program 1150 times [2022-03-15 15:36:40,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:40,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523063965] [2022-03-15 15:36:40,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:40,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:40,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:40,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:40,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523063965] [2022-03-15 15:36:40,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523063965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:40,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:40,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:40,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702930468] [2022-03-15 15:36:40,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:40,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:40,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:40,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:40,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:40,319 INFO L87 Difference]: Start difference. First operand 5261 states and 24837 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:40,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:40,532 INFO L93 Difference]: Finished difference Result 10817 states and 48608 transitions. [2022-03-15 15:36:40,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:40,533 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:40,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:40,565 INFO L225 Difference]: With dead ends: 10817 [2022-03-15 15:36:40,565 INFO L226 Difference]: Without dead ends: 10250 [2022-03-15 15:36:40,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:40,566 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 155 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:40,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 230 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10250 states. [2022-03-15 15:36:40,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10250 to 5157. [2022-03-15 15:36:40,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.7317688130333595) internal successors, (24397), 5156 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:40,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24397 transitions. [2022-03-15 15:36:40,711 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24397 transitions. Word has length 29 [2022-03-15 15:36:40,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:40,711 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24397 transitions. [2022-03-15 15:36:40,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:40,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24397 transitions. [2022-03-15 15:36:40,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:40,721 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:40,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:40,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1154 [2022-03-15 15:36:40,721 INFO L402 AbstractCegarLoop]: === Iteration 1156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:40,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:40,721 INFO L85 PathProgramCache]: Analyzing trace with hash 519136835, now seen corresponding path program 1151 times [2022-03-15 15:36:40,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:40,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950560881] [2022-03-15 15:36:40,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:40,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:40,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:40,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:40,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950560881] [2022-03-15 15:36:40,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950560881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:40,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:40,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:40,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860971069] [2022-03-15 15:36:40,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:40,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:40,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:40,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:40,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:40,828 INFO L87 Difference]: Start difference. First operand 5157 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:40,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:40,993 INFO L93 Difference]: Finished difference Result 11117 states and 49741 transitions. [2022-03-15 15:36:40,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:40,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:40,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:41,027 INFO L225 Difference]: With dead ends: 11117 [2022-03-15 15:36:41,027 INFO L226 Difference]: Without dead ends: 10642 [2022-03-15 15:36:41,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:41,027 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 159 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:41,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 216 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:41,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-03-15 15:36:41,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 5229. [2022-03-15 15:36:41,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.719395562356541) internal successors, (24673), 5228 states have internal predecessors, (24673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24673 transitions. [2022-03-15 15:36:41,182 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24673 transitions. Word has length 29 [2022-03-15 15:36:41,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:41,182 INFO L470 AbstractCegarLoop]: Abstraction has 5229 states and 24673 transitions. [2022-03-15 15:36:41,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:41,183 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24673 transitions. [2022-03-15 15:36:41,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:41,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:41,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:41,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1155 [2022-03-15 15:36:41,193 INFO L402 AbstractCegarLoop]: === Iteration 1157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:41,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:41,194 INFO L85 PathProgramCache]: Analyzing trace with hash 312328869, now seen corresponding path program 1152 times [2022-03-15 15:36:41,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:41,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234053874] [2022-03-15 15:36:41,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:41,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:41,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:41,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:41,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234053874] [2022-03-15 15:36:41,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234053874] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:41,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:41,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:41,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003160906] [2022-03-15 15:36:41,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:41,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:41,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:41,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:41,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:41,310 INFO L87 Difference]: Start difference. First operand 5229 states and 24673 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:41,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:41,477 INFO L93 Difference]: Finished difference Result 10785 states and 48444 transitions. [2022-03-15 15:36:41,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:41,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:41,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:41,510 INFO L225 Difference]: With dead ends: 10785 [2022-03-15 15:36:41,511 INFO L226 Difference]: Without dead ends: 10178 [2022-03-15 15:36:41,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:41,511 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 148 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:41,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 208 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:41,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2022-03-15 15:36:41,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 5085. [2022-03-15 15:36:41,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5085 states, 5084 states have (on average 4.752360346184107) internal successors, (24161), 5084 states have internal predecessors, (24161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:41,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5085 states to 5085 states and 24161 transitions. [2022-03-15 15:36:41,662 INFO L78 Accepts]: Start accepts. Automaton has 5085 states and 24161 transitions. Word has length 29 [2022-03-15 15:36:41,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:41,663 INFO L470 AbstractCegarLoop]: Abstraction has 5085 states and 24161 transitions. [2022-03-15 15:36:41,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:41,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5085 states and 24161 transitions. [2022-03-15 15:36:41,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:41,673 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:41,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:41,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1156 [2022-03-15 15:36:41,673 INFO L402 AbstractCegarLoop]: === Iteration 1158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:41,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:41,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1048962529, now seen corresponding path program 1153 times [2022-03-15 15:36:41,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:41,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709881388] [2022-03-15 15:36:41,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:41,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:41,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:41,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:41,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709881388] [2022-03-15 15:36:41,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709881388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:41,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:41,802 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:41,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650226857] [2022-03-15 15:36:41,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:41,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:41,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:41,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:41,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:41,803 INFO L87 Difference]: Start difference. First operand 5085 states and 24161 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:41,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:41,986 INFO L93 Difference]: Finished difference Result 10449 states and 46756 transitions. [2022-03-15 15:36:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:41,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:41,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:42,019 INFO L225 Difference]: With dead ends: 10449 [2022-03-15 15:36:42,019 INFO L226 Difference]: Without dead ends: 10034 [2022-03-15 15:36:42,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:42,020 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 167 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:42,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 223 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10034 states. [2022-03-15 15:36:42,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10034 to 5141. [2022-03-15 15:36:42,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.746498054474708) internal successors, (24397), 5140 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:42,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24397 transitions. [2022-03-15 15:36:42,173 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24397 transitions. Word has length 29 [2022-03-15 15:36:42,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:42,173 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24397 transitions. [2022-03-15 15:36:42,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:42,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24397 transitions. [2022-03-15 15:36:42,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:42,183 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:42,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:42,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1157 [2022-03-15 15:36:42,183 INFO L402 AbstractCegarLoop]: === Iteration 1159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:42,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:42,184 INFO L85 PathProgramCache]: Analyzing trace with hash -381496615, now seen corresponding path program 1154 times [2022-03-15 15:36:42,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:42,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999180301] [2022-03-15 15:36:42,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:42,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:42,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:42,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999180301] [2022-03-15 15:36:42,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999180301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:42,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:42,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:42,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644110982] [2022-03-15 15:36:42,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:42,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:42,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:42,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:42,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:42,322 INFO L87 Difference]: Start difference. First operand 5141 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:42,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:42,479 INFO L93 Difference]: Finished difference Result 10449 states and 46724 transitions. [2022-03-15 15:36:42,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:42,479 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:42,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:42,511 INFO L225 Difference]: With dead ends: 10449 [2022-03-15 15:36:42,511 INFO L226 Difference]: Without dead ends: 10002 [2022-03-15 15:36:42,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:42,512 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 181 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:42,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 195 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:42,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10002 states. [2022-03-15 15:36:42,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10002 to 5109. [2022-03-15 15:36:42,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.751174628034455) internal successors, (24269), 5108 states have internal predecessors, (24269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:42,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24269 transitions. [2022-03-15 15:36:42,664 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24269 transitions. Word has length 29 [2022-03-15 15:36:42,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:42,665 INFO L470 AbstractCegarLoop]: Abstraction has 5109 states and 24269 transitions. [2022-03-15 15:36:42,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:42,665 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24269 transitions. [2022-03-15 15:36:42,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:42,675 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:42,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:42,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1158 [2022-03-15 15:36:42,675 INFO L402 AbstractCegarLoop]: === Iteration 1160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:42,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:42,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1529864575, now seen corresponding path program 1155 times [2022-03-15 15:36:42,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:42,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739974334] [2022-03-15 15:36:42,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:42,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:42,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:42,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:42,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739974334] [2022-03-15 15:36:42,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739974334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:42,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:42,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:42,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293804313] [2022-03-15 15:36:42,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:42,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:42,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:42,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:42,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:42,824 INFO L87 Difference]: Start difference. First operand 5109 states and 24269 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:42,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:42,990 INFO L93 Difference]: Finished difference Result 10525 states and 47084 transitions. [2022-03-15 15:36:42,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:42,990 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:42,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:43,023 INFO L225 Difference]: With dead ends: 10525 [2022-03-15 15:36:43,023 INFO L226 Difference]: Without dead ends: 10110 [2022-03-15 15:36:43,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:43,024 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 174 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:43,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 200 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:43,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10110 states. [2022-03-15 15:36:43,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10110 to 5157. [2022-03-15 15:36:43,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.741078355314197) internal successors, (24445), 5156 states have internal predecessors, (24445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:43,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24445 transitions. [2022-03-15 15:36:43,237 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24445 transitions. Word has length 29 [2022-03-15 15:36:43,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:43,237 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24445 transitions. [2022-03-15 15:36:43,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:43,237 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24445 transitions. [2022-03-15 15:36:43,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:43,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:43,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:43,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1159 [2022-03-15 15:36:43,248 INFO L402 AbstractCegarLoop]: === Iteration 1161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:43,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:43,249 INFO L85 PathProgramCache]: Analyzing trace with hash 281607553, now seen corresponding path program 1156 times [2022-03-15 15:36:43,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:43,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908060213] [2022-03-15 15:36:43,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:43,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:43,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:43,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:43,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908060213] [2022-03-15 15:36:43,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908060213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:43,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:43,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:43,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722079784] [2022-03-15 15:36:43,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:43,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:43,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:43,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:43,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:43,361 INFO L87 Difference]: Start difference. First operand 5157 states and 24445 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:43,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:43,540 INFO L93 Difference]: Finished difference Result 10585 states and 47300 transitions. [2022-03-15 15:36:43,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:43,540 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:43,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:43,574 INFO L225 Difference]: With dead ends: 10585 [2022-03-15 15:36:43,574 INFO L226 Difference]: Without dead ends: 10062 [2022-03-15 15:36:43,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:43,575 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 153 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:43,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 235 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:43,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10062 states. [2022-03-15 15:36:43,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10062 to 5109. [2022-03-15 15:36:43,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.74804228660924) internal successors, (24253), 5108 states have internal predecessors, (24253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:43,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24253 transitions. [2022-03-15 15:36:43,732 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24253 transitions. Word has length 29 [2022-03-15 15:36:43,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:43,733 INFO L470 AbstractCegarLoop]: Abstraction has 5109 states and 24253 transitions. [2022-03-15 15:36:43,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:43,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24253 transitions. [2022-03-15 15:36:43,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:43,743 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:43,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:43,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1160 [2022-03-15 15:36:43,743 INFO L402 AbstractCegarLoop]: === Iteration 1162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:43,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:43,743 INFO L85 PathProgramCache]: Analyzing trace with hash -512192679, now seen corresponding path program 1157 times [2022-03-15 15:36:43,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:43,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231677459] [2022-03-15 15:36:43,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:43,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:43,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:43,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231677459] [2022-03-15 15:36:43,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231677459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:43,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:43,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:43,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536457867] [2022-03-15 15:36:43,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:43,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:43,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:43,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:43,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:43,853 INFO L87 Difference]: Start difference. First operand 5109 states and 24253 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:44,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:44,018 INFO L93 Difference]: Finished difference Result 10525 states and 47068 transitions. [2022-03-15 15:36:44,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:44,018 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:44,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:44,051 INFO L225 Difference]: With dead ends: 10525 [2022-03-15 15:36:44,051 INFO L226 Difference]: Without dead ends: 10110 [2022-03-15 15:36:44,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:44,051 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 154 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:44,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 232 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:44,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10110 states. [2022-03-15 15:36:44,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10110 to 5157. [2022-03-15 15:36:44,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.737975174553918) internal successors, (24429), 5156 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:44,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24429 transitions. [2022-03-15 15:36:44,199 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24429 transitions. Word has length 29 [2022-03-15 15:36:44,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:44,199 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24429 transitions. [2022-03-15 15:36:44,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:44,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24429 transitions. [2022-03-15 15:36:44,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:44,210 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:44,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:44,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1161 [2022-03-15 15:36:44,210 INFO L402 AbstractCegarLoop]: === Iteration 1163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:44,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:44,210 INFO L85 PathProgramCache]: Analyzing trace with hash 568869947, now seen corresponding path program 1158 times [2022-03-15 15:36:44,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:44,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26044385] [2022-03-15 15:36:44,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:44,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:44,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:44,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26044385] [2022-03-15 15:36:44,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26044385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:44,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:44,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:44,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581841812] [2022-03-15 15:36:44,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:44,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:44,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:44,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:44,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:44,320 INFO L87 Difference]: Start difference. First operand 5157 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:44,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:44,510 INFO L93 Difference]: Finished difference Result 10585 states and 47284 transitions. [2022-03-15 15:36:44,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:44,510 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:44,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:44,541 INFO L225 Difference]: With dead ends: 10585 [2022-03-15 15:36:44,541 INFO L226 Difference]: Without dead ends: 10046 [2022-03-15 15:36:44,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:44,541 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 141 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:44,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 267 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:44,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10046 states. [2022-03-15 15:36:44,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10046 to 5093. [2022-03-15 15:36:44,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.751963864886096) internal successors, (24197), 5092 states have internal predecessors, (24197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:44,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24197 transitions. [2022-03-15 15:36:44,683 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24197 transitions. Word has length 29 [2022-03-15 15:36:44,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:44,683 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24197 transitions. [2022-03-15 15:36:44,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:44,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24197 transitions. [2022-03-15 15:36:44,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:44,693 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:44,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:44,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1162 [2022-03-15 15:36:44,693 INFO L402 AbstractCegarLoop]: === Iteration 1164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:44,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:44,694 INFO L85 PathProgramCache]: Analyzing trace with hash 352155009, now seen corresponding path program 1159 times [2022-03-15 15:36:44,694 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:44,694 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126658357] [2022-03-15 15:36:44,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:44,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:44,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:44,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:44,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126658357] [2022-03-15 15:36:44,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126658357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:44,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:44,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:44,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32768259] [2022-03-15 15:36:44,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:44,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:44,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:44,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:44,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:44,802 INFO L87 Difference]: Start difference. First operand 5093 states and 24197 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:44,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:44,963 INFO L93 Difference]: Finished difference Result 10405 states and 46564 transitions. [2022-03-15 15:36:44,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:44,963 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:44,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:44,995 INFO L225 Difference]: With dead ends: 10405 [2022-03-15 15:36:44,996 INFO L226 Difference]: Without dead ends: 9990 [2022-03-15 15:36:44,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:44,996 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 179 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:44,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 206 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:45,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9990 states. [2022-03-15 15:36:45,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9990 to 5141. [2022-03-15 15:36:45,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 5140 states have (on average 4.744941634241245) internal successors, (24389), 5140 states have internal predecessors, (24389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:45,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 24389 transitions. [2022-03-15 15:36:45,148 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 24389 transitions. Word has length 29 [2022-03-15 15:36:45,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:45,148 INFO L470 AbstractCegarLoop]: Abstraction has 5141 states and 24389 transitions. [2022-03-15 15:36:45,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:45,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 24389 transitions. [2022-03-15 15:36:45,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:45,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:45,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:45,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1163 [2022-03-15 15:36:45,159 INFO L402 AbstractCegarLoop]: === Iteration 1165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:45,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:45,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1019620923, now seen corresponding path program 1160 times [2022-03-15 15:36:45,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:45,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923577246] [2022-03-15 15:36:45,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:45,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:45,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:45,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923577246] [2022-03-15 15:36:45,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923577246] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:45,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:45,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:45,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293038459] [2022-03-15 15:36:45,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:45,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:45,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:45,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:45,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:45,270 INFO L87 Difference]: Start difference. First operand 5141 states and 24389 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:45,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:45,419 INFO L93 Difference]: Finished difference Result 10405 states and 46532 transitions. [2022-03-15 15:36:45,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:45,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:45,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:45,452 INFO L225 Difference]: With dead ends: 10405 [2022-03-15 15:36:45,452 INFO L226 Difference]: Without dead ends: 9958 [2022-03-15 15:36:45,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:45,452 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 202 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:45,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 188 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:45,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9958 states. [2022-03-15 15:36:45,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9958 to 5109. [2022-03-15 15:36:45,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.749608457321848) internal successors, (24261), 5108 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:45,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24261 transitions. [2022-03-15 15:36:45,602 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24261 transitions. Word has length 29 [2022-03-15 15:36:45,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:45,602 INFO L470 AbstractCegarLoop]: Abstraction has 5109 states and 24261 transitions. [2022-03-15 15:36:45,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:45,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24261 transitions. [2022-03-15 15:36:45,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:45,612 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:45,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:45,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1164 [2022-03-15 15:36:45,612 INFO L402 AbstractCegarLoop]: === Iteration 1166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:45,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:45,613 INFO L85 PathProgramCache]: Analyzing trace with hash 742116737, now seen corresponding path program 1161 times [2022-03-15 15:36:45,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:45,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948490724] [2022-03-15 15:36:45,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:45,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:45,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:45,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948490724] [2022-03-15 15:36:45,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948490724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:45,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:45,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:45,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218990159] [2022-03-15 15:36:45,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:45,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:45,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:45,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:45,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:45,756 INFO L87 Difference]: Start difference. First operand 5109 states and 24261 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:45,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:45,927 INFO L93 Difference]: Finished difference Result 10373 states and 46452 transitions. [2022-03-15 15:36:45,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:45,927 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:45,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:45,959 INFO L225 Difference]: With dead ends: 10373 [2022-03-15 15:36:45,959 INFO L226 Difference]: Without dead ends: 9958 [2022-03-15 15:36:45,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:45,960 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 197 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:45,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 190 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:45,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9958 states. [2022-03-15 15:36:46,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9958 to 5157. [2022-03-15 15:36:46,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.739526764934057) internal successors, (24437), 5156 states have internal predecessors, (24437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:46,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24437 transitions. [2022-03-15 15:36:46,104 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24437 transitions. Word has length 29 [2022-03-15 15:36:46,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:46,104 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24437 transitions. [2022-03-15 15:36:46,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:46,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24437 transitions. [2022-03-15 15:36:46,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:46,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:46,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:46,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1165 [2022-03-15 15:36:46,114 INFO L402 AbstractCegarLoop]: === Iteration 1167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:46,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:46,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1216320383, now seen corresponding path program 1162 times [2022-03-15 15:36:46,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:46,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031505408] [2022-03-15 15:36:46,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:46,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:46,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:46,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:46,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031505408] [2022-03-15 15:36:46,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031505408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:46,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:46,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:46,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168325013] [2022-03-15 15:36:46,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:46,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:46,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:46,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:46,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:46,239 INFO L87 Difference]: Start difference. First operand 5157 states and 24437 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:46,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:46,429 INFO L93 Difference]: Finished difference Result 10101 states and 45443 transitions. [2022-03-15 15:36:46,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:46,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:46,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:46,461 INFO L225 Difference]: With dead ends: 10101 [2022-03-15 15:36:46,461 INFO L226 Difference]: Without dead ends: 9590 [2022-03-15 15:36:46,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:46,461 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 152 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:46,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 213 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:46,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9590 states. [2022-03-15 15:36:46,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9590 to 5109. [2022-03-15 15:36:46,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5109 states, 5108 states have (on average 4.746476115896633) internal successors, (24245), 5108 states have internal predecessors, (24245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:46,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5109 states to 5109 states and 24245 transitions. [2022-03-15 15:36:46,606 INFO L78 Accepts]: Start accepts. Automaton has 5109 states and 24245 transitions. Word has length 29 [2022-03-15 15:36:46,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:46,607 INFO L470 AbstractCegarLoop]: Abstraction has 5109 states and 24245 transitions. [2022-03-15 15:36:46,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:46,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5109 states and 24245 transitions. [2022-03-15 15:36:46,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:46,617 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:46,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:46,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1166 [2022-03-15 15:36:46,617 INFO L402 AbstractCegarLoop]: === Iteration 1168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:46,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:46,617 INFO L85 PathProgramCache]: Analyzing trace with hash -778776743, now seen corresponding path program 1163 times [2022-03-15 15:36:46,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:46,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903280329] [2022-03-15 15:36:46,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:46,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:46,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:46,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:46,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903280329] [2022-03-15 15:36:46,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903280329] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:46,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:46,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:46,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450159552] [2022-03-15 15:36:46,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:46,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:46,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:46,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:46,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:46,766 INFO L87 Difference]: Start difference. First operand 5109 states and 24245 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:46,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:46,968 INFO L93 Difference]: Finished difference Result 10373 states and 46436 transitions. [2022-03-15 15:36:46,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:46,968 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:46,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:47,000 INFO L225 Difference]: With dead ends: 10373 [2022-03-15 15:36:47,000 INFO L226 Difference]: Without dead ends: 9958 [2022-03-15 15:36:47,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:47,000 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 149 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:47,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 268 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:47,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9958 states. [2022-03-15 15:36:47,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9958 to 5157. [2022-03-15 15:36:47,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.736423584173778) internal successors, (24421), 5156 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:47,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24421 transitions. [2022-03-15 15:36:47,148 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24421 transitions. Word has length 29 [2022-03-15 15:36:47,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:47,148 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24421 transitions. [2022-03-15 15:36:47,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:47,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24421 transitions. [2022-03-15 15:36:47,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:47,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:47,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:47,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1167 [2022-03-15 15:36:47,159 INFO L402 AbstractCegarLoop]: === Iteration 1169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:47,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:47,159 INFO L85 PathProgramCache]: Analyzing trace with hash 2021511995, now seen corresponding path program 1164 times [2022-03-15 15:36:47,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:47,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553772662] [2022-03-15 15:36:47,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:47,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:47,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:47,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:47,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553772662] [2022-03-15 15:36:47,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553772662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:47,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:47,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:47,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773182215] [2022-03-15 15:36:47,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:47,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:47,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:47,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:47,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:47,307 INFO L87 Difference]: Start difference. First operand 5157 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:47,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:47,469 INFO L93 Difference]: Finished difference Result 10101 states and 45427 transitions. [2022-03-15 15:36:47,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:47,470 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:47,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:47,502 INFO L225 Difference]: With dead ends: 10101 [2022-03-15 15:36:47,502 INFO L226 Difference]: Without dead ends: 9574 [2022-03-15 15:36:47,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:47,502 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:47,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 213 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:47,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9574 states. [2022-03-15 15:36:47,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9574 to 5093. [2022-03-15 15:36:47,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.750392772977219) internal successors, (24189), 5092 states have internal predecessors, (24189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:47,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24189 transitions. [2022-03-15 15:36:47,650 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24189 transitions. Word has length 29 [2022-03-15 15:36:47,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:47,650 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24189 transitions. [2022-03-15 15:36:47,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:47,650 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24189 transitions. [2022-03-15 15:36:47,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:47,660 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:47,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:47,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1168 [2022-03-15 15:36:47,660 INFO L402 AbstractCegarLoop]: === Iteration 1170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:47,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:47,661 INFO L85 PathProgramCache]: Analyzing trace with hash -437231261, now seen corresponding path program 1165 times [2022-03-15 15:36:47,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:47,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448942691] [2022-03-15 15:36:47,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:47,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:47,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:47,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:47,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448942691] [2022-03-15 15:36:47,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448942691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:47,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:47,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:47,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245679633] [2022-03-15 15:36:47,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:47,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:47,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:47,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:47,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:47,776 INFO L87 Difference]: Start difference. First operand 5093 states and 24189 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:47,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:47,948 INFO L93 Difference]: Finished difference Result 10573 states and 47332 transitions. [2022-03-15 15:36:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:47,948 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:47,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:47,981 INFO L225 Difference]: With dead ends: 10573 [2022-03-15 15:36:47,982 INFO L226 Difference]: Without dead ends: 10158 [2022-03-15 15:36:47,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:47,982 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 161 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:47,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 229 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:47,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10158 states. [2022-03-15 15:36:48,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10158 to 5165. [2022-03-15 15:36:48,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.742254066615027) internal successors, (24489), 5164 states have internal predecessors, (24489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:48,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24489 transitions. [2022-03-15 15:36:48,132 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24489 transitions. Word has length 29 [2022-03-15 15:36:48,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:48,133 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24489 transitions. [2022-03-15 15:36:48,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:48,133 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24489 transitions. [2022-03-15 15:36:48,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:48,143 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:48,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:48,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1169 [2022-03-15 15:36:48,143 INFO L402 AbstractCegarLoop]: === Iteration 1171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:48,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:48,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1374240867, now seen corresponding path program 1166 times [2022-03-15 15:36:48,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:48,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46696857] [2022-03-15 15:36:48,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:48,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:48,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:48,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46696857] [2022-03-15 15:36:48,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46696857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:48,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:48,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:48,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336783168] [2022-03-15 15:36:48,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:48,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:48,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:48,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:48,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:48,268 INFO L87 Difference]: Start difference. First operand 5165 states and 24489 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:48,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:48,428 INFO L93 Difference]: Finished difference Result 10633 states and 47548 transitions. [2022-03-15 15:36:48,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:48,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:48,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:48,461 INFO L225 Difference]: With dead ends: 10633 [2022-03-15 15:36:48,462 INFO L226 Difference]: Without dead ends: 10110 [2022-03-15 15:36:48,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:48,462 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 155 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:48,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 211 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:48,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10110 states. [2022-03-15 15:36:48,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10110 to 5117. [2022-03-15 15:36:48,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.747654417513683) internal successors, (24289), 5116 states have internal predecessors, (24289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:48,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24289 transitions. [2022-03-15 15:36:48,604 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24289 transitions. Word has length 29 [2022-03-15 15:36:48,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:48,604 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24289 transitions. [2022-03-15 15:36:48,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:48,604 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24289 transitions. [2022-03-15 15:36:48,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:48,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:48,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:48,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1170 [2022-03-15 15:36:48,614 INFO L402 AbstractCegarLoop]: === Iteration 1172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:48,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:48,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1824723393, now seen corresponding path program 1167 times [2022-03-15 15:36:48,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:48,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76270914] [2022-03-15 15:36:48,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:48,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:48,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:48,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:48,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76270914] [2022-03-15 15:36:48,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76270914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:48,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:48,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:48,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157368647] [2022-03-15 15:36:48,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:48,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:48,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:48,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:48,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:48,785 INFO L87 Difference]: Start difference. First operand 5117 states and 24289 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:48,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:48,984 INFO L93 Difference]: Finished difference Result 10465 states and 46868 transitions. [2022-03-15 15:36:48,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:48,985 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:48,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:49,015 INFO L225 Difference]: With dead ends: 10465 [2022-03-15 15:36:49,015 INFO L226 Difference]: Without dead ends: 10050 [2022-03-15 15:36:49,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:49,016 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 159 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:49,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 241 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:49,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10050 states. [2022-03-15 15:36:49,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10050 to 5165. [2022-03-15 15:36:49,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.737606506584044) internal successors, (24465), 5164 states have internal predecessors, (24465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:49,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24465 transitions. [2022-03-15 15:36:49,153 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24465 transitions. Word has length 29 [2022-03-15 15:36:49,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:49,153 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24465 transitions. [2022-03-15 15:36:49,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:49,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24465 transitions. [2022-03-15 15:36:49,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:49,163 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:49,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:49,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1171 [2022-03-15 15:36:49,163 INFO L402 AbstractCegarLoop]: === Iteration 1173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:49,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:49,164 INFO L85 PathProgramCache]: Analyzing trace with hash 493281379, now seen corresponding path program 1168 times [2022-03-15 15:36:49,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:49,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499871669] [2022-03-15 15:36:49,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:49,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:49,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:49,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:49,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499871669] [2022-03-15 15:36:49,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499871669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:49,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:49,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:49,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343861898] [2022-03-15 15:36:49,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:49,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:49,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:49,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:49,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:49,285 INFO L87 Difference]: Start difference. First operand 5165 states and 24465 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:49,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:49,479 INFO L93 Difference]: Finished difference Result 10193 states and 45859 transitions. [2022-03-15 15:36:49,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:49,479 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:49,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:49,512 INFO L225 Difference]: With dead ends: 10193 [2022-03-15 15:36:49,512 INFO L226 Difference]: Without dead ends: 9682 [2022-03-15 15:36:49,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:49,512 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 156 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:49,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 217 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:49,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9682 states. [2022-03-15 15:36:49,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9682 to 5117. [2022-03-15 15:36:49,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.742963252541048) internal successors, (24265), 5116 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:49,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24265 transitions. [2022-03-15 15:36:49,724 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24265 transitions. Word has length 29 [2022-03-15 15:36:49,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:49,724 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24265 transitions. [2022-03-15 15:36:49,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:49,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24265 transitions. [2022-03-15 15:36:49,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:49,735 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:49,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:49,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1172 [2022-03-15 15:36:49,735 INFO L402 AbstractCegarLoop]: === Iteration 1174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:49,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:49,736 INFO L85 PathProgramCache]: Analyzing trace with hash 511844195, now seen corresponding path program 1169 times [2022-03-15 15:36:49,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:49,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979859789] [2022-03-15 15:36:49,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:49,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:49,895 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:49,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979859789] [2022-03-15 15:36:49,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979859789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:49,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:49,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:49,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849832880] [2022-03-15 15:36:49,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:49,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:49,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:49,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:49,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:49,896 INFO L87 Difference]: Start difference. First operand 5117 states and 24265 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:50,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:50,126 INFO L93 Difference]: Finished difference Result 10549 states and 47232 transitions. [2022-03-15 15:36:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:50,126 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:50,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:50,158 INFO L225 Difference]: With dead ends: 10549 [2022-03-15 15:36:50,158 INFO L226 Difference]: Without dead ends: 10074 [2022-03-15 15:36:50,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:50,159 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:50,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 206 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:50,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10074 states. [2022-03-15 15:36:50,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10074 to 5189. [2022-03-15 15:36:50,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.730339244410177) internal successors, (24541), 5188 states have internal predecessors, (24541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24541 transitions. [2022-03-15 15:36:50,305 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24541 transitions. Word has length 29 [2022-03-15 15:36:50,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:50,305 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24541 transitions. [2022-03-15 15:36:50,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:50,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24541 transitions. [2022-03-15 15:36:50,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:50,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:50,316 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:50,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1173 [2022-03-15 15:36:50,316 INFO L402 AbstractCegarLoop]: === Iteration 1175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:50,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:50,316 INFO L85 PathProgramCache]: Analyzing trace with hash -880300351, now seen corresponding path program 1170 times [2022-03-15 15:36:50,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:50,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931816077] [2022-03-15 15:36:50,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:50,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:50,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:50,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931816077] [2022-03-15 15:36:50,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931816077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:50,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:50,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:50,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266159538] [2022-03-15 15:36:50,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:50,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:50,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:50,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:50,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:50,457 INFO L87 Difference]: Start difference. First operand 5189 states and 24541 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:50,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:50,646 INFO L93 Difference]: Finished difference Result 10217 states and 45935 transitions. [2022-03-15 15:36:50,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:50,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:50,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:50,678 INFO L225 Difference]: With dead ends: 10217 [2022-03-15 15:36:50,678 INFO L226 Difference]: Without dead ends: 9658 [2022-03-15 15:36:50,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:50,678 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 152 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:50,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 206 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:50,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9658 states. [2022-03-15 15:36:50,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9658 to 5093. [2022-03-15 15:36:50,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.748821681068343) internal successors, (24181), 5092 states have internal predecessors, (24181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:50,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24181 transitions. [2022-03-15 15:36:50,828 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24181 transitions. Word has length 29 [2022-03-15 15:36:50,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:50,828 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24181 transitions. [2022-03-15 15:36:50,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:50,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24181 transitions. [2022-03-15 15:36:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:50,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:50,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:50,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1174 [2022-03-15 15:36:50,839 INFO L402 AbstractCegarLoop]: === Iteration 1176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:50,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash 2101038041, now seen corresponding path program 1171 times [2022-03-15 15:36:50,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:50,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294994181] [2022-03-15 15:36:50,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:50,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:50,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:50,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294994181] [2022-03-15 15:36:50,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294994181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:50,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:50,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:50,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007935173] [2022-03-15 15:36:50,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:50,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:50,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:50,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:50,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:50,974 INFO L87 Difference]: Start difference. First operand 5093 states and 24181 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:51,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:51,146 INFO L93 Difference]: Finished difference Result 10573 states and 47324 transitions. [2022-03-15 15:36:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:51,147 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:51,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:51,180 INFO L225 Difference]: With dead ends: 10573 [2022-03-15 15:36:51,181 INFO L226 Difference]: Without dead ends: 10158 [2022-03-15 15:36:51,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:51,181 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 166 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:51,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 197 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:51,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10158 states. [2022-03-15 15:36:51,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10158 to 5165. [2022-03-15 15:36:51,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.740704879938033) internal successors, (24481), 5164 states have internal predecessors, (24481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:51,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24481 transitions. [2022-03-15 15:36:51,321 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24481 transitions. Word has length 29 [2022-03-15 15:36:51,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:51,321 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24481 transitions. [2022-03-15 15:36:51,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:51,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24481 transitions. [2022-03-15 15:36:51,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:51,331 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:51,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:51,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1175 [2022-03-15 15:36:51,331 INFO L402 AbstractCegarLoop]: === Iteration 1177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:51,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:51,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1112866629, now seen corresponding path program 1172 times [2022-03-15 15:36:51,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:51,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559396311] [2022-03-15 15:36:51,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:51,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:51,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:51,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559396311] [2022-03-15 15:36:51,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559396311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:51,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:51,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:51,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752886646] [2022-03-15 15:36:51,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:51,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:51,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:51,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:51,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:51,463 INFO L87 Difference]: Start difference. First operand 5165 states and 24481 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:51,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:51,649 INFO L93 Difference]: Finished difference Result 10633 states and 47540 transitions. [2022-03-15 15:36:51,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:51,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:51,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:51,679 INFO L225 Difference]: With dead ends: 10633 [2022-03-15 15:36:51,680 INFO L226 Difference]: Without dead ends: 10110 [2022-03-15 15:36:51,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:51,680 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 155 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:51,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 203 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:51,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10110 states. [2022-03-15 15:36:51,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10110 to 5117. [2022-03-15 15:36:51,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.746090695856138) internal successors, (24281), 5116 states have internal predecessors, (24281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:51,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24281 transitions. [2022-03-15 15:36:51,814 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24281 transitions. Word has length 29 [2022-03-15 15:36:51,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:51,814 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24281 transitions. [2022-03-15 15:36:51,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:51,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24281 transitions. [2022-03-15 15:36:51,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:51,824 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:51,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:51,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1176 [2022-03-15 15:36:51,825 INFO L402 AbstractCegarLoop]: === Iteration 1178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:51,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:51,825 INFO L85 PathProgramCache]: Analyzing trace with hash 927078331, now seen corresponding path program 1173 times [2022-03-15 15:36:51,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:51,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061656591] [2022-03-15 15:36:51,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:51,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:51,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:51,963 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:51,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061656591] [2022-03-15 15:36:51,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061656591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:51,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:51,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:51,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88789276] [2022-03-15 15:36:51,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:51,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:51,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:51,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:51,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:51,964 INFO L87 Difference]: Start difference. First operand 5117 states and 24281 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:52,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:52,171 INFO L93 Difference]: Finished difference Result 10465 states and 46860 transitions. [2022-03-15 15:36:52,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:52,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:52,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:52,203 INFO L225 Difference]: With dead ends: 10465 [2022-03-15 15:36:52,203 INFO L226 Difference]: Without dead ends: 10050 [2022-03-15 15:36:52,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:52,203 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 157 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:52,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 221 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:52,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10050 states. [2022-03-15 15:36:52,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10050 to 5165. [2022-03-15 15:36:52,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.736057319907049) internal successors, (24457), 5164 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:52,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24457 transitions. [2022-03-15 15:36:52,345 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24457 transitions. Word has length 29 [2022-03-15 15:36:52,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:52,345 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24457 transitions. [2022-03-15 15:36:52,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:52,346 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24457 transitions. [2022-03-15 15:36:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:52,356 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:52,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:52,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1177 [2022-03-15 15:36:52,356 INFO L402 AbstractCegarLoop]: === Iteration 1179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:52,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:52,356 INFO L85 PathProgramCache]: Analyzing trace with hash 976646075, now seen corresponding path program 1174 times [2022-03-15 15:36:52,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:52,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765108358] [2022-03-15 15:36:52,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:52,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:52,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:52,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:52,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765108358] [2022-03-15 15:36:52,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765108358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:52,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:52,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:52,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757680049] [2022-03-15 15:36:52,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:52,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:52,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:52,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:52,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:52,497 INFO L87 Difference]: Start difference. First operand 5165 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:52,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:52,684 INFO L93 Difference]: Finished difference Result 10193 states and 45851 transitions. [2022-03-15 15:36:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:52,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:52,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:52,714 INFO L225 Difference]: With dead ends: 10193 [2022-03-15 15:36:52,715 INFO L226 Difference]: Without dead ends: 9682 [2022-03-15 15:36:52,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:52,715 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 155 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:52,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 210 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:52,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9682 states. [2022-03-15 15:36:52,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9682 to 5117. [2022-03-15 15:36:52,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.741399530883503) internal successors, (24257), 5116 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:52,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24257 transitions. [2022-03-15 15:36:52,859 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24257 transitions. Word has length 29 [2022-03-15 15:36:52,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:52,859 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24257 transitions. [2022-03-15 15:36:52,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:52,859 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24257 transitions. [2022-03-15 15:36:52,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:52,869 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:52,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:52,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1178 [2022-03-15 15:36:52,869 INFO L402 AbstractCegarLoop]: === Iteration 1180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:52,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:52,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1315083293, now seen corresponding path program 1175 times [2022-03-15 15:36:52,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:52,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695717107] [2022-03-15 15:36:52,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:52,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:53,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:53,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695717107] [2022-03-15 15:36:53,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695717107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:53,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:53,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:53,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56012680] [2022-03-15 15:36:53,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:53,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:53,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:53,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:53,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:53,042 INFO L87 Difference]: Start difference. First operand 5117 states and 24257 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:53,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:53,249 INFO L93 Difference]: Finished difference Result 10549 states and 47224 transitions. [2022-03-15 15:36:53,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:53,250 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:53,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:53,282 INFO L225 Difference]: With dead ends: 10549 [2022-03-15 15:36:53,283 INFO L226 Difference]: Without dead ends: 10074 [2022-03-15 15:36:53,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:53,283 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 156 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:53,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 216 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:53,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10074 states. [2022-03-15 15:36:53,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10074 to 5189. [2022-03-15 15:36:53,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.728797224363917) internal successors, (24533), 5188 states have internal predecessors, (24533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:53,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24533 transitions. [2022-03-15 15:36:53,440 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24533 transitions. Word has length 29 [2022-03-15 15:36:53,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:53,440 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24533 transitions. [2022-03-15 15:36:53,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:53,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24533 transitions. [2022-03-15 15:36:53,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:53,450 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:53,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:53,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1179 [2022-03-15 15:36:53,451 INFO L402 AbstractCegarLoop]: === Iteration 1181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:53,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:53,451 INFO L85 PathProgramCache]: Analyzing trace with hash -800996357, now seen corresponding path program 1176 times [2022-03-15 15:36:53,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:53,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010681819] [2022-03-15 15:36:53,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:53,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:53,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:53,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:53,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010681819] [2022-03-15 15:36:53,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010681819] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:53,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:53,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:53,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499321905] [2022-03-15 15:36:53,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:53,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:53,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:53,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:53,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:53,595 INFO L87 Difference]: Start difference. First operand 5189 states and 24533 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:53,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:53,825 INFO L93 Difference]: Finished difference Result 10217 states and 45927 transitions. [2022-03-15 15:36:53,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:53,825 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:53,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:53,857 INFO L225 Difference]: With dead ends: 10217 [2022-03-15 15:36:53,857 INFO L226 Difference]: Without dead ends: 9650 [2022-03-15 15:36:53,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:53,857 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 143 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:53,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 235 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:53,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9650 states. [2022-03-15 15:36:53,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9650 to 5085. [2022-03-15 15:36:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5085 states, 5084 states have (on average 4.751573564122738) internal successors, (24157), 5084 states have internal predecessors, (24157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:54,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5085 states to 5085 states and 24157 transitions. [2022-03-15 15:36:54,007 INFO L78 Accepts]: Start accepts. Automaton has 5085 states and 24157 transitions. Word has length 29 [2022-03-15 15:36:54,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:54,007 INFO L470 AbstractCegarLoop]: Abstraction has 5085 states and 24157 transitions. [2022-03-15 15:36:54,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:54,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5085 states and 24157 transitions. [2022-03-15 15:36:54,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:54,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:54,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:54,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1180 [2022-03-15 15:36:54,018 INFO L402 AbstractCegarLoop]: === Iteration 1182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:54,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:54,018 INFO L85 PathProgramCache]: Analyzing trace with hash 337614969, now seen corresponding path program 1177 times [2022-03-15 15:36:54,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:54,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445614792] [2022-03-15 15:36:54,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:54,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:54,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:54,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:54,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445614792] [2022-03-15 15:36:54,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445614792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:54,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:54,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:54,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840842411] [2022-03-15 15:36:54,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:54,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:54,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:54,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:54,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:54,203 INFO L87 Difference]: Start difference. First operand 5085 states and 24157 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:54,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:54,379 INFO L93 Difference]: Finished difference Result 11369 states and 50846 transitions. [2022-03-15 15:36:54,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:54,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:54,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:54,413 INFO L225 Difference]: With dead ends: 11369 [2022-03-15 15:36:54,413 INFO L226 Difference]: Without dead ends: 10827 [2022-03-15 15:36:54,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:54,413 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 158 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:54,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 210 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:54,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10827 states. [2022-03-15 15:36:54,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10827 to 5225. [2022-03-15 15:36:54,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.739854517611026) internal successors, (24761), 5224 states have internal predecessors, (24761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:54,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24761 transitions. [2022-03-15 15:36:54,561 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24761 transitions. Word has length 29 [2022-03-15 15:36:54,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:54,562 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24761 transitions. [2022-03-15 15:36:54,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:54,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24761 transitions. [2022-03-15 15:36:54,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:54,572 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:54,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:54,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1181 [2022-03-15 15:36:54,572 INFO L402 AbstractCegarLoop]: === Iteration 1183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:54,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:54,572 INFO L85 PathProgramCache]: Analyzing trace with hash 130807003, now seen corresponding path program 1178 times [2022-03-15 15:36:54,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:54,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476022526] [2022-03-15 15:36:54,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:54,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:54,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:54,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:54,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476022526] [2022-03-15 15:36:54,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476022526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:54,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:54,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:54,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226174352] [2022-03-15 15:36:54,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:54,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:54,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:54,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:54,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:54,698 INFO L87 Difference]: Start difference. First operand 5225 states and 24761 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:54,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:54,944 INFO L93 Difference]: Finished difference Result 11242 states and 50239 transitions. [2022-03-15 15:36:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:54,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:54,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:54,975 INFO L225 Difference]: With dead ends: 11242 [2022-03-15 15:36:54,975 INFO L226 Difference]: Without dead ends: 10747 [2022-03-15 15:36:54,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:54,976 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 156 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:54,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 219 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:36:54,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10747 states. [2022-03-15 15:36:55,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10747 to 5145. [2022-03-15 15:36:55,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.749805598755832) internal successors, (24433), 5144 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:55,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24433 transitions. [2022-03-15 15:36:55,111 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24433 transitions. Word has length 29 [2022-03-15 15:36:55,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:55,111 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24433 transitions. [2022-03-15 15:36:55,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:55,111 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24433 transitions. [2022-03-15 15:36:55,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:55,121 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:55,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:55,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1182 [2022-03-15 15:36:55,121 INFO L402 AbstractCegarLoop]: === Iteration 1184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:55,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:55,122 INFO L85 PathProgramCache]: Analyzing trace with hash -143287077, now seen corresponding path program 1179 times [2022-03-15 15:36:55,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:55,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308629703] [2022-03-15 15:36:55,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:55,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:55,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:55,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:55,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308629703] [2022-03-15 15:36:55,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308629703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:55,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:55,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:55,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483140379] [2022-03-15 15:36:55,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:55,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:55,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:55,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:55,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:55,298 INFO L87 Difference]: Start difference. First operand 5145 states and 24433 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:55,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:55,492 INFO L93 Difference]: Finished difference Result 11459 states and 51217 transitions. [2022-03-15 15:36:55,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:55,492 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:55,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:55,525 INFO L225 Difference]: With dead ends: 11459 [2022-03-15 15:36:55,525 INFO L226 Difference]: Without dead ends: 10917 [2022-03-15 15:36:55,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:55,525 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 157 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:55,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 233 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:55,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10917 states. [2022-03-15 15:36:55,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10917 to 5255. [2022-03-15 15:36:55,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.727445755614769) internal successors, (24838), 5254 states have internal predecessors, (24838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:55,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24838 transitions. [2022-03-15 15:36:55,671 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24838 transitions. Word has length 29 [2022-03-15 15:36:55,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:55,671 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 24838 transitions. [2022-03-15 15:36:55,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:55,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24838 transitions. [2022-03-15 15:36:55,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:55,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:55,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:55,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1183 [2022-03-15 15:36:55,682 INFO L402 AbstractCegarLoop]: === Iteration 1185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:55,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:55,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1175563355, now seen corresponding path program 1180 times [2022-03-15 15:36:55,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:55,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744954819] [2022-03-15 15:36:55,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:55,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:55,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:55,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:55,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744954819] [2022-03-15 15:36:55,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744954819] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:55,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:55,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:55,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584132566] [2022-03-15 15:36:55,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:55,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:55,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:55,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:55,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:55,805 INFO L87 Difference]: Start difference. First operand 5255 states and 24838 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:55,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:55,969 INFO L93 Difference]: Finished difference Result 11392 states and 50844 transitions. [2022-03-15 15:36:55,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:55,969 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:55,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:56,001 INFO L225 Difference]: With dead ends: 11392 [2022-03-15 15:36:56,001 INFO L226 Difference]: Without dead ends: 10807 [2022-03-15 15:36:56,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:56,002 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 188 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:56,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 183 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:56,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10807 states. [2022-03-15 15:36:56,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10807 to 5145. [2022-03-15 15:36:56,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.742029548989113) internal successors, (24393), 5144 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:56,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24393 transitions. [2022-03-15 15:36:56,144 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24393 transitions. Word has length 29 [2022-03-15 15:36:56,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:56,144 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24393 transitions. [2022-03-15 15:36:56,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24393 transitions. [2022-03-15 15:36:56,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:56,154 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:56,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:56,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1184 [2022-03-15 15:36:56,154 INFO L402 AbstractCegarLoop]: === Iteration 1186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:56,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:56,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1736210371, now seen corresponding path program 1181 times [2022-03-15 15:36:56,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:56,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905494209] [2022-03-15 15:36:56,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:56,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:56,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:56,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:56,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905494209] [2022-03-15 15:36:56,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905494209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:56,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:56,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:56,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929110632] [2022-03-15 15:36:56,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:56,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:56,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:56,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:56,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:56,274 INFO L87 Difference]: Start difference. First operand 5145 states and 24393 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:56,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:56,433 INFO L93 Difference]: Finished difference Result 11143 states and 49832 transitions. [2022-03-15 15:36:56,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:56,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:56,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:56,467 INFO L225 Difference]: With dead ends: 11143 [2022-03-15 15:36:56,467 INFO L226 Difference]: Without dead ends: 10728 [2022-03-15 15:36:56,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:56,467 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 170 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:56,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 216 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:56,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10728 states. [2022-03-15 15:36:56,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10728 to 5193. [2022-03-15 15:36:56,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.7320878274268106) internal successors, (24569), 5192 states have internal predecessors, (24569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:56,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24569 transitions. [2022-03-15 15:36:56,672 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24569 transitions. Word has length 29 [2022-03-15 15:36:56,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:56,672 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24569 transitions. [2022-03-15 15:36:56,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:56,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24569 transitions. [2022-03-15 15:36:56,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:56,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:56,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:56,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1185 [2022-03-15 15:36:56,682 INFO L402 AbstractCegarLoop]: === Iteration 1187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:56,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:56,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1711959963, now seen corresponding path program 1182 times [2022-03-15 15:36:56,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:56,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542999174] [2022-03-15 15:36:56,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:56,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:56,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:56,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:56,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542999174] [2022-03-15 15:36:56,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542999174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:56,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:56,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:56,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242302294] [2022-03-15 15:36:56,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:56,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:56,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:56,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:56,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:56,787 INFO L87 Difference]: Start difference. First operand 5193 states and 24569 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:56,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:56,945 INFO L93 Difference]: Finished difference Result 11203 states and 50048 transitions. [2022-03-15 15:36:56,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:56,945 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:56,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:56,979 INFO L225 Difference]: With dead ends: 11203 [2022-03-15 15:36:56,979 INFO L226 Difference]: Without dead ends: 10640 [2022-03-15 15:36:56,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:56,979 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 184 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:56,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 183 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:56,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2022-03-15 15:36:57,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 5105. [2022-03-15 15:36:57,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.750979623824452) internal successors, (24249), 5104 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:57,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24249 transitions. [2022-03-15 15:36:57,132 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24249 transitions. Word has length 29 [2022-03-15 15:36:57,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:57,132 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24249 transitions. [2022-03-15 15:36:57,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:57,132 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24249 transitions. [2022-03-15 15:36:57,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:57,142 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:57,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:57,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1186 [2022-03-15 15:36:57,143 INFO L402 AbstractCegarLoop]: === Iteration 1188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:57,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:57,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1738732507, now seen corresponding path program 1183 times [2022-03-15 15:36:57,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:57,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415935578] [2022-03-15 15:36:57,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:57,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:57,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:57,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415935578] [2022-03-15 15:36:57,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415935578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:57,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:57,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:57,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900876607] [2022-03-15 15:36:57,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:57,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:57,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:57,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:57,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:57,267 INFO L87 Difference]: Start difference. First operand 5105 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:57,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:57,414 INFO L93 Difference]: Finished difference Result 11271 states and 50395 transitions. [2022-03-15 15:36:57,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:57,414 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:57,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:57,444 INFO L225 Difference]: With dead ends: 11271 [2022-03-15 15:36:57,445 INFO L226 Difference]: Without dead ends: 10729 [2022-03-15 15:36:57,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:57,445 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 174 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:57,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 201 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:57,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10729 states. [2022-03-15 15:36:57,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10729 to 5225. [2022-03-15 15:36:57,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.736026033690658) internal successors, (24741), 5224 states have internal predecessors, (24741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:57,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24741 transitions. [2022-03-15 15:36:57,579 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24741 transitions. Word has length 29 [2022-03-15 15:36:57,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:57,579 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24741 transitions. [2022-03-15 15:36:57,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:57,580 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24741 transitions. [2022-03-15 15:36:57,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:57,589 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:57,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:57,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1187 [2022-03-15 15:36:57,589 INFO L402 AbstractCegarLoop]: === Iteration 1189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:57,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:57,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1531924541, now seen corresponding path program 1184 times [2022-03-15 15:36:57,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:57,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609238640] [2022-03-15 15:36:57,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:57,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:57,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:57,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:57,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609238640] [2022-03-15 15:36:57,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609238640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:57,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:57,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:57,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347386944] [2022-03-15 15:36:57,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:57,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:57,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:57,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:57,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:57,703 INFO L87 Difference]: Start difference. First operand 5225 states and 24741 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:57,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:57,899 INFO L93 Difference]: Finished difference Result 11144 states and 49788 transitions. [2022-03-15 15:36:57,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:57,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:57,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:57,930 INFO L225 Difference]: With dead ends: 11144 [2022-03-15 15:36:57,930 INFO L226 Difference]: Without dead ends: 10649 [2022-03-15 15:36:57,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:57,930 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 165 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:57,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 207 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:57,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10649 states. [2022-03-15 15:36:58,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10649 to 5145. [2022-03-15 15:36:58,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.745917573872473) internal successors, (24413), 5144 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:58,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24413 transitions. [2022-03-15 15:36:58,063 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24413 transitions. Word has length 29 [2022-03-15 15:36:58,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:58,063 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24413 transitions. [2022-03-15 15:36:58,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:58,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24413 transitions. [2022-03-15 15:36:58,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:58,073 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:58,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:58,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1188 [2022-03-15 15:36:58,073 INFO L402 AbstractCegarLoop]: === Iteration 1190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:58,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:58,073 INFO L85 PathProgramCache]: Analyzing trace with hash 2128694235, now seen corresponding path program 1185 times [2022-03-15 15:36:58,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:58,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471301946] [2022-03-15 15:36:58,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:58,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:58,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:58,187 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:58,187 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471301946] [2022-03-15 15:36:58,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471301946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:58,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:58,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:58,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434291836] [2022-03-15 15:36:58,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:58,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:58,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:58,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:58,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:58,188 INFO L87 Difference]: Start difference. First operand 5145 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:58,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:58,368 INFO L93 Difference]: Finished difference Result 11120 states and 49776 transitions. [2022-03-15 15:36:58,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:58,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:58,402 INFO L225 Difference]: With dead ends: 11120 [2022-03-15 15:36:58,402 INFO L226 Difference]: Without dead ends: 10578 [2022-03-15 15:36:58,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:58,402 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 156 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:58,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 204 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:58,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10578 states. [2022-03-15 15:36:58,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10578 to 5249. [2022-03-15 15:36:58,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5249 states, 5248 states have (on average 4.725800304878049) internal successors, (24801), 5248 states have internal predecessors, (24801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 24801 transitions. [2022-03-15 15:36:58,550 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 24801 transitions. Word has length 29 [2022-03-15 15:36:58,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:58,550 INFO L470 AbstractCegarLoop]: Abstraction has 5249 states and 24801 transitions. [2022-03-15 15:36:58,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:58,550 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 24801 transitions. [2022-03-15 15:36:58,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:58,560 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:58,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:58,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1189 [2022-03-15 15:36:58,561 INFO L402 AbstractCegarLoop]: === Iteration 1191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:58,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:58,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1666761893, now seen corresponding path program 1186 times [2022-03-15 15:36:58,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:58,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327882795] [2022-03-15 15:36:58,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:58,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:58,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:58,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327882795] [2022-03-15 15:36:58,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327882795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:58,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:58,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:58,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527306925] [2022-03-15 15:36:58,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:58,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:58,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:58,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:58,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:58,732 INFO L87 Difference]: Start difference. First operand 5249 states and 24801 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:58,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:58,912 INFO L93 Difference]: Finished difference Result 10721 states and 48184 transitions. [2022-03-15 15:36:58,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:58,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:58,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:58,944 INFO L225 Difference]: With dead ends: 10721 [2022-03-15 15:36:58,945 INFO L226 Difference]: Without dead ends: 10154 [2022-03-15 15:36:58,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:58,945 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 168 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:58,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 198 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:58,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10154 states. [2022-03-15 15:36:59,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10154 to 5145. [2022-03-15 15:36:59,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.738141524105754) internal successors, (24373), 5144 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:59,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24373 transitions. [2022-03-15 15:36:59,088 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24373 transitions. Word has length 29 [2022-03-15 15:36:59,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:59,088 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24373 transitions. [2022-03-15 15:36:59,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:59,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24373 transitions. [2022-03-15 15:36:59,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:59,098 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:59,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:59,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1190 [2022-03-15 15:36:59,098 INFO L402 AbstractCegarLoop]: === Iteration 1192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:59,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:59,099 INFO L85 PathProgramCache]: Analyzing trace with hash 535770941, now seen corresponding path program 1187 times [2022-03-15 15:36:59,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:59,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043725324] [2022-03-15 15:36:59,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:59,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:59,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:59,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:59,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043725324] [2022-03-15 15:36:59,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043725324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:59,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:59,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:59,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713599720] [2022-03-15 15:36:59,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:59,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:59,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:59,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:59,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:59,220 INFO L87 Difference]: Start difference. First operand 5145 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:59,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:59,391 INFO L93 Difference]: Finished difference Result 10937 states and 48941 transitions. [2022-03-15 15:36:59,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:59,391 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:59,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:59,425 INFO L225 Difference]: With dead ends: 10937 [2022-03-15 15:36:59,425 INFO L226 Difference]: Without dead ends: 10522 [2022-03-15 15:36:59,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:59,425 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 174 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:59,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 211 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:59,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10522 states. [2022-03-15 15:36:59,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10522 to 5193. [2022-03-15 15:36:59,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.728235747303544) internal successors, (24549), 5192 states have internal predecessors, (24549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:59,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24549 transitions. [2022-03-15 15:36:59,572 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24549 transitions. Word has length 29 [2022-03-15 15:36:59,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:36:59,572 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24549 transitions. [2022-03-15 15:36:59,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:59,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24549 transitions. [2022-03-15 15:36:59,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:36:59,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:36:59,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:36:59,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1191 [2022-03-15 15:36:59,582 INFO L402 AbstractCegarLoop]: === Iteration 1193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:36:59,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:36:59,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1445375899, now seen corresponding path program 1188 times [2022-03-15 15:36:59,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:36:59,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057098999] [2022-03-15 15:36:59,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:36:59,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:36:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:36:59,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:36:59,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:36:59,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057098999] [2022-03-15 15:36:59,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057098999] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:36:59,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:36:59,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:36:59,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539020922] [2022-03-15 15:36:59,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:36:59,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:36:59,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:36:59,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:36:59,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:36:59,709 INFO L87 Difference]: Start difference. First operand 5193 states and 24549 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:36:59,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:36:59,908 INFO L93 Difference]: Finished difference Result 10665 states and 47932 transitions. [2022-03-15 15:36:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:36:59,908 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:36:59,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:36:59,941 INFO L225 Difference]: With dead ends: 10665 [2022-03-15 15:36:59,941 INFO L226 Difference]: Without dead ends: 10114 [2022-03-15 15:36:59,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:36:59,941 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 147 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:36:59,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 226 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:36:59,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10114 states. [2022-03-15 15:37:00,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10114 to 5105. [2022-03-15 15:37:00,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.747061128526646) internal successors, (24229), 5104 states have internal predecessors, (24229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:00,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24229 transitions. [2022-03-15 15:37:00,086 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24229 transitions. Word has length 29 [2022-03-15 15:37:00,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:00,087 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24229 transitions. [2022-03-15 15:37:00,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:00,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24229 transitions. [2022-03-15 15:37:00,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:00,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:00,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:00,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1192 [2022-03-15 15:37:00,097 INFO L402 AbstractCegarLoop]: === Iteration 1194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:00,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:00,097 INFO L85 PathProgramCache]: Analyzing trace with hash 949346237, now seen corresponding path program 1189 times [2022-03-15 15:37:00,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:00,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889431647] [2022-03-15 15:37:00,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:00,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:00,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:00,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:00,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889431647] [2022-03-15 15:37:00,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889431647] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:00,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:00,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:00,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389200796] [2022-03-15 15:37:00,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:00,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:00,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:00,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:00,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:00,239 INFO L87 Difference]: Start difference. First operand 5105 states and 24229 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:00,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:00,432 INFO L93 Difference]: Finished difference Result 11457 states and 51242 transitions. [2022-03-15 15:37:00,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:00,432 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:00,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:00,464 INFO L225 Difference]: With dead ends: 11457 [2022-03-15 15:37:00,464 INFO L226 Difference]: Without dead ends: 10915 [2022-03-15 15:37:00,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:00,465 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 162 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:00,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 202 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:00,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2022-03-15 15:37:00,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 5267. [2022-03-15 15:37:00,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 4.729586023547284) internal successors, (24906), 5266 states have internal predecessors, (24906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:00,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 24906 transitions. [2022-03-15 15:37:00,607 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 24906 transitions. Word has length 29 [2022-03-15 15:37:00,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:00,607 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 24906 transitions. [2022-03-15 15:37:00,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:00,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 24906 transitions. [2022-03-15 15:37:00,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:00,617 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:00,617 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:00,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1193 [2022-03-15 15:37:00,617 INFO L402 AbstractCegarLoop]: === Iteration 1195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:00,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:00,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2026770627, now seen corresponding path program 1190 times [2022-03-15 15:37:00,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:00,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303479498] [2022-03-15 15:37:00,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:00,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:00,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:00,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:00,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303479498] [2022-03-15 15:37:00,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303479498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:00,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:00,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:00,846 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273550447] [2022-03-15 15:37:00,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:00,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:00,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:00,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:00,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:00,846 INFO L87 Difference]: Start difference. First operand 5267 states and 24906 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:01,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:01,096 INFO L93 Difference]: Finished difference Result 11390 states and 50869 transitions. [2022-03-15 15:37:01,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:01,097 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:01,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:01,129 INFO L225 Difference]: With dead ends: 11390 [2022-03-15 15:37:01,129 INFO L226 Difference]: Without dead ends: 10805 [2022-03-15 15:37:01,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:01,129 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 148 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:01,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 255 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:37:01,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10805 states. [2022-03-15 15:37:01,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10805 to 5157. [2022-03-15 15:37:01,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.741854150504267) internal successors, (24449), 5156 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:01,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24449 transitions. [2022-03-15 15:37:01,270 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24449 transitions. Word has length 29 [2022-03-15 15:37:01,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:01,270 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24449 transitions. [2022-03-15 15:37:01,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:01,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24449 transitions. [2022-03-15 15:37:01,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:01,280 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:01,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:01,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1194 [2022-03-15 15:37:01,280 INFO L402 AbstractCegarLoop]: === Iteration 1196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:01,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:01,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1083666405, now seen corresponding path program 1191 times [2022-03-15 15:37:01,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:01,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45153490] [2022-03-15 15:37:01,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:01,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:01,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:01,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:01,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45153490] [2022-03-15 15:37:01,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45153490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:01,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:01,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:01,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288197456] [2022-03-15 15:37:01,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:01,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:01,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:01,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:01,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:01,397 INFO L87 Difference]: Start difference. First operand 5157 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:01,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:01,562 INFO L93 Difference]: Finished difference Result 11216 states and 50200 transitions. [2022-03-15 15:37:01,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:01,562 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:01,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:01,594 INFO L225 Difference]: With dead ends: 11216 [2022-03-15 15:37:01,594 INFO L226 Difference]: Without dead ends: 10674 [2022-03-15 15:37:01,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:01,594 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 164 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:01,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 211 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:01,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10674 states. [2022-03-15 15:37:01,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10674 to 5261. [2022-03-15 15:37:01,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.721863117870722) internal successors, (24837), 5260 states have internal predecessors, (24837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:01,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24837 transitions. [2022-03-15 15:37:01,733 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24837 transitions. Word has length 29 [2022-03-15 15:37:01,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:01,733 INFO L470 AbstractCegarLoop]: Abstraction has 5261 states and 24837 transitions. [2022-03-15 15:37:01,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:01,734 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24837 transitions. [2022-03-15 15:37:01,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:01,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:01,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:01,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1195 [2022-03-15 15:37:01,744 INFO L402 AbstractCegarLoop]: === Iteration 1197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:01,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:01,744 INFO L85 PathProgramCache]: Analyzing trace with hash 42839869, now seen corresponding path program 1192 times [2022-03-15 15:37:01,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:01,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259093265] [2022-03-15 15:37:01,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:01,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:01,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:01,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:01,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259093265] [2022-03-15 15:37:01,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259093265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:01,869 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:01,869 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:01,869 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656398265] [2022-03-15 15:37:01,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:01,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:01,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:01,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:01,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:01,870 INFO L87 Difference]: Start difference. First operand 5261 states and 24837 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:02,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:02,036 INFO L93 Difference]: Finished difference Result 10817 states and 48608 transitions. [2022-03-15 15:37:02,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:02,037 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:02,067 INFO L225 Difference]: With dead ends: 10817 [2022-03-15 15:37:02,068 INFO L226 Difference]: Without dead ends: 10250 [2022-03-15 15:37:02,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:02,068 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 143 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:02,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 218 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:02,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10250 states. [2022-03-15 15:37:02,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10250 to 5157. [2022-03-15 15:37:02,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5157 states, 5156 states have (on average 4.7317688130333595) internal successors, (24397), 5156 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 5157 states and 24397 transitions. [2022-03-15 15:37:02,198 INFO L78 Accepts]: Start accepts. Automaton has 5157 states and 24397 transitions. Word has length 29 [2022-03-15 15:37:02,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:02,198 INFO L470 AbstractCegarLoop]: Abstraction has 5157 states and 24397 transitions. [2022-03-15 15:37:02,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:02,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5157 states and 24397 transitions. [2022-03-15 15:37:02,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:02,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:02,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:02,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1196 [2022-03-15 15:37:02,208 INFO L402 AbstractCegarLoop]: === Iteration 1198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:02,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:02,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1262091965, now seen corresponding path program 1193 times [2022-03-15 15:37:02,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:02,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226566615] [2022-03-15 15:37:02,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:02,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:02,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:02,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:02,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226566615] [2022-03-15 15:37:02,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226566615] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:02,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:02,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:02,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938708084] [2022-03-15 15:37:02,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:02,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:02,324 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:02,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:02,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:02,324 INFO L87 Difference]: Start difference. First operand 5157 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:02,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:02,509 INFO L93 Difference]: Finished difference Result 11117 states and 49741 transitions. [2022-03-15 15:37:02,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:02,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:02,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:02,542 INFO L225 Difference]: With dead ends: 11117 [2022-03-15 15:37:02,542 INFO L226 Difference]: Without dead ends: 10642 [2022-03-15 15:37:02,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:02,543 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 149 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:02,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 247 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:02,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-03-15 15:37:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 5229. [2022-03-15 15:37:02,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5229 states, 5228 states have (on average 4.719395562356541) internal successors, (24673), 5228 states have internal predecessors, (24673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:02,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 24673 transitions. [2022-03-15 15:37:02,691 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 24673 transitions. Word has length 29 [2022-03-15 15:37:02,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:02,691 INFO L470 AbstractCegarLoop]: Abstraction has 5229 states and 24673 transitions. [2022-03-15 15:37:02,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:02,691 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 24673 transitions. [2022-03-15 15:37:02,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:02,701 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:02,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:02,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1197 [2022-03-15 15:37:02,701 INFO L402 AbstractCegarLoop]: === Iteration 1199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:02,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:02,702 INFO L85 PathProgramCache]: Analyzing trace with hash -853987685, now seen corresponding path program 1194 times [2022-03-15 15:37:02,702 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:02,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59526754] [2022-03-15 15:37:02,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:02,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:02,819 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:02,819 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59526754] [2022-03-15 15:37:02,819 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59526754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:02,819 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:02,819 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:02,819 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810072465] [2022-03-15 15:37:02,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:02,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:02,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:02,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:02,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:02,819 INFO L87 Difference]: Start difference. First operand 5229 states and 24673 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:03,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:03,003 INFO L93 Difference]: Finished difference Result 10785 states and 48444 transitions. [2022-03-15 15:37:03,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:03,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:03,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:03,035 INFO L225 Difference]: With dead ends: 10785 [2022-03-15 15:37:03,035 INFO L226 Difference]: Without dead ends: 10198 [2022-03-15 15:37:03,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:03,036 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 146 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:03,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 222 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:03,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states. [2022-03-15 15:37:03,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 5105. [2022-03-15 15:37:03,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.74314263322884) internal successors, (24209), 5104 states have internal predecessors, (24209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:03,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24209 transitions. [2022-03-15 15:37:03,216 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24209 transitions. Word has length 29 [2022-03-15 15:37:03,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:03,216 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24209 transitions. [2022-03-15 15:37:03,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:03,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24209 transitions. [2022-03-15 15:37:03,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:03,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:03,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:03,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1198 [2022-03-15 15:37:03,227 INFO L402 AbstractCegarLoop]: === Iteration 1200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:03,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:03,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1260545505, now seen corresponding path program 1195 times [2022-03-15 15:37:03,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:03,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020795894] [2022-03-15 15:37:03,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:03,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:03,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:03,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:03,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020795894] [2022-03-15 15:37:03,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020795894] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:03,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:03,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:03,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495807519] [2022-03-15 15:37:03,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:03,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:03,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:03,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:03,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:03,334 INFO L87 Difference]: Start difference. First operand 5105 states and 24209 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:03,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:03,498 INFO L93 Difference]: Finished difference Result 10930 states and 48934 transitions. [2022-03-15 15:37:03,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:03,498 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:03,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:03,531 INFO L225 Difference]: With dead ends: 10930 [2022-03-15 15:37:03,531 INFO L226 Difference]: Without dead ends: 10515 [2022-03-15 15:37:03,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:03,531 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 148 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:03,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 223 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:03,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10515 states. [2022-03-15 15:37:03,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10515 to 5177. [2022-03-15 15:37:03,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.735123647604327) internal successors, (24509), 5176 states have internal predecessors, (24509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:03,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24509 transitions. [2022-03-15 15:37:03,681 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24509 transitions. Word has length 29 [2022-03-15 15:37:03,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:03,681 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24509 transitions. [2022-03-15 15:37:03,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24509 transitions. [2022-03-15 15:37:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:03,692 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:03,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:03,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1199 [2022-03-15 15:37:03,692 INFO L402 AbstractCegarLoop]: === Iteration 1201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:03,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:03,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2107342467, now seen corresponding path program 1196 times [2022-03-15 15:37:03,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:03,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786507144] [2022-03-15 15:37:03,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:03,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:03,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:03,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:03,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786507144] [2022-03-15 15:37:03,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786507144] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:03,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:03,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:03,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541805955] [2022-03-15 15:37:03,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:03,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:03,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:03,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:03,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:03,862 INFO L87 Difference]: Start difference. First operand 5177 states and 24509 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:04,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:04,092 INFO L93 Difference]: Finished difference Result 10990 states and 49150 transitions. [2022-03-15 15:37:04,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:04,092 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:04,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:04,128 INFO L225 Difference]: With dead ends: 10990 [2022-03-15 15:37:04,128 INFO L226 Difference]: Without dead ends: 10467 [2022-03-15 15:37:04,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:04,128 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 151 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:04,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 232 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:04,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2022-03-15 15:37:04,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 5129. [2022-03-15 15:37:04,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.7404446177847115) internal successors, (24309), 5128 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:04,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24309 transitions. [2022-03-15 15:37:04,271 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24309 transitions. Word has length 29 [2022-03-15 15:37:04,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:04,271 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24309 transitions. [2022-03-15 15:37:04,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:04,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24309 transitions. [2022-03-15 15:37:04,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:04,281 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:04,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:04,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1200 [2022-03-15 15:37:04,281 INFO L402 AbstractCegarLoop]: === Iteration 1202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:04,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:04,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1001409149, now seen corresponding path program 1197 times [2022-03-15 15:37:04,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:04,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482978614] [2022-03-15 15:37:04,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:04,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:04,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:04,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:04,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482978614] [2022-03-15 15:37:04,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482978614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:04,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:04,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:04,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906189107] [2022-03-15 15:37:04,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:04,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:04,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:04,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:04,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:04,445 INFO L87 Difference]: Start difference. First operand 5129 states and 24309 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:04,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:04,665 INFO L93 Difference]: Finished difference Result 10822 states and 48470 transitions. [2022-03-15 15:37:04,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:04,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:04,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:04,698 INFO L225 Difference]: With dead ends: 10822 [2022-03-15 15:37:04,699 INFO L226 Difference]: Without dead ends: 10407 [2022-03-15 15:37:04,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:04,699 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 152 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:04,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 233 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:04,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10407 states. [2022-03-15 15:37:04,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10407 to 5177. [2022-03-15 15:37:04,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.73048686244204) internal successors, (24485), 5176 states have internal predecessors, (24485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:04,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24485 transitions. [2022-03-15 15:37:04,833 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24485 transitions. Word has length 29 [2022-03-15 15:37:04,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:04,833 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24485 transitions. [2022-03-15 15:37:04,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:04,833 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24485 transitions. [2022-03-15 15:37:04,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:04,842 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:04,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:04,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1201 [2022-03-15 15:37:04,843 INFO L402 AbstractCegarLoop]: === Iteration 1203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:04,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:04,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1756958083, now seen corresponding path program 1198 times [2022-03-15 15:37:04,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:04,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559144379] [2022-03-15 15:37:04,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:04,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:05,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:05,010 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:05,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559144379] [2022-03-15 15:37:05,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559144379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:05,010 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:05,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:05,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422160407] [2022-03-15 15:37:05,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:05,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:05,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:05,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:05,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:05,010 INFO L87 Difference]: Start difference. First operand 5177 states and 24485 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:05,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:05,235 INFO L93 Difference]: Finished difference Result 10550 states and 47461 transitions. [2022-03-15 15:37:05,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:05,235 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:05,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:05,268 INFO L225 Difference]: With dead ends: 10550 [2022-03-15 15:37:05,268 INFO L226 Difference]: Without dead ends: 10039 [2022-03-15 15:37:05,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:05,269 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 147 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:05,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 196 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:05,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10039 states. [2022-03-15 15:37:05,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10039 to 5129. [2022-03-15 15:37:05,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.735764430577223) internal successors, (24285), 5128 states have internal predecessors, (24285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:05,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24285 transitions. [2022-03-15 15:37:05,404 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24285 transitions. Word has length 29 [2022-03-15 15:37:05,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:05,405 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24285 transitions. [2022-03-15 15:37:05,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:05,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24285 transitions. [2022-03-15 15:37:05,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:05,414 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:05,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:05,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1202 [2022-03-15 15:37:05,415 INFO L402 AbstractCegarLoop]: === Iteration 1204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:05,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:05,415 INFO L85 PathProgramCache]: Analyzing trace with hash 144661083, now seen corresponding path program 1199 times [2022-03-15 15:37:05,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:05,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186744787] [2022-03-15 15:37:05,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:05,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:05,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:05,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:05,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186744787] [2022-03-15 15:37:05,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186744787] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:05,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:05,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:05,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073715307] [2022-03-15 15:37:05,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:05,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:05,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:05,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:05,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:05,551 INFO L87 Difference]: Start difference. First operand 5129 states and 24285 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:05,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:05,773 INFO L93 Difference]: Finished difference Result 10906 states and 48834 transitions. [2022-03-15 15:37:05,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:05,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:05,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:05,807 INFO L225 Difference]: With dead ends: 10906 [2022-03-15 15:37:05,807 INFO L226 Difference]: Without dead ends: 10431 [2022-03-15 15:37:05,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:05,807 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 145 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:05,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 249 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:05,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2022-03-15 15:37:05,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 5201. [2022-03-15 15:37:05,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.7232692307692306) internal successors, (24561), 5200 states have internal predecessors, (24561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24561 transitions. [2022-03-15 15:37:05,956 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24561 transitions. Word has length 29 [2022-03-15 15:37:05,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:05,956 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24561 transitions. [2022-03-15 15:37:05,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:05,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24561 transitions. [2022-03-15 15:37:05,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:05,966 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:05,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:05,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1203 [2022-03-15 15:37:05,967 INFO L402 AbstractCegarLoop]: === Iteration 1205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:05,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:05,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1029298627, now seen corresponding path program 1200 times [2022-03-15 15:37:05,967 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:05,967 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003052806] [2022-03-15 15:37:05,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:05,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:06,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:06,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:06,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003052806] [2022-03-15 15:37:06,116 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003052806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:06,116 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:06,116 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:06,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954900638] [2022-03-15 15:37:06,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:06,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:06,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:06,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:06,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:06,116 INFO L87 Difference]: Start difference. First operand 5201 states and 24561 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:06,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:06,348 INFO L93 Difference]: Finished difference Result 10574 states and 47537 transitions. [2022-03-15 15:37:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:06,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:06,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:06,382 INFO L225 Difference]: With dead ends: 10574 [2022-03-15 15:37:06,382 INFO L226 Difference]: Without dead ends: 9987 [2022-03-15 15:37:06,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:06,382 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 140 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:06,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 221 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:06,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9987 states. [2022-03-15 15:37:06,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9987 to 5077. [2022-03-15 15:37:06,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5077 states, 5076 states have (on average 4.754334121355398) internal successors, (24133), 5076 states have internal predecessors, (24133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:06,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5077 states to 5077 states and 24133 transitions. [2022-03-15 15:37:06,535 INFO L78 Accepts]: Start accepts. Automaton has 5077 states and 24133 transitions. Word has length 29 [2022-03-15 15:37:06,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:06,536 INFO L470 AbstractCegarLoop]: Abstraction has 5077 states and 24133 transitions. [2022-03-15 15:37:06,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:06,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5077 states and 24133 transitions. [2022-03-15 15:37:06,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:06,546 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:06,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:06,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1204 [2022-03-15 15:37:06,546 INFO L402 AbstractCegarLoop]: === Iteration 1206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:06,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:06,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1172602593, now seen corresponding path program 1201 times [2022-03-15 15:37:06,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:06,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134938012] [2022-03-15 15:37:06,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:06,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:06,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:06,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134938012] [2022-03-15 15:37:06,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134938012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:06,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:06,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:06,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930451182] [2022-03-15 15:37:06,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:06,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:06,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:06,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:06,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:06,731 INFO L87 Difference]: Start difference. First operand 5077 states and 24133 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:06,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:06,957 INFO L93 Difference]: Finished difference Result 10248 states and 45808 transitions. [2022-03-15 15:37:06,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:06,957 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:06,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:06,991 INFO L225 Difference]: With dead ends: 10248 [2022-03-15 15:37:06,991 INFO L226 Difference]: Without dead ends: 9833 [2022-03-15 15:37:06,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:06,992 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 158 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:06,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 227 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:07,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2022-03-15 15:37:07,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 5153. [2022-03-15 15:37:07,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.74708850931677) internal successors, (24457), 5152 states have internal predecessors, (24457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:07,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24457 transitions. [2022-03-15 15:37:07,145 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24457 transitions. Word has length 29 [2022-03-15 15:37:07,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:07,145 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24457 transitions. [2022-03-15 15:37:07,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:07,145 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24457 transitions. [2022-03-15 15:37:07,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:07,156 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:07,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:07,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1205 [2022-03-15 15:37:07,156 INFO L402 AbstractCegarLoop]: === Iteration 1207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:07,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:07,156 INFO L85 PathProgramCache]: Analyzing trace with hash -943315583, now seen corresponding path program 1202 times [2022-03-15 15:37:07,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:07,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355784700] [2022-03-15 15:37:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:07,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:07,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:07,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:07,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355784700] [2022-03-15 15:37:07,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355784700] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:07,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:07,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:07,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307982828] [2022-03-15 15:37:07,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:07,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:07,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:07,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:07,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:07,335 INFO L87 Difference]: Start difference. First operand 5153 states and 24457 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:07,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:07,557 INFO L93 Difference]: Finished difference Result 10310 states and 46029 transitions. [2022-03-15 15:37:07,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:07,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:07,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:07,590 INFO L225 Difference]: With dead ends: 10310 [2022-03-15 15:37:07,591 INFO L226 Difference]: Without dead ends: 9785 [2022-03-15 15:37:07,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:07,591 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 156 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:07,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 226 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:07,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9785 states. [2022-03-15 15:37:07,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9785 to 5105. [2022-03-15 15:37:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.754114420062696) internal successors, (24265), 5104 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:07,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24265 transitions. [2022-03-15 15:37:07,742 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24265 transitions. Word has length 29 [2022-03-15 15:37:07,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:07,742 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24265 transitions. [2022-03-15 15:37:07,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:07,743 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24265 transitions. [2022-03-15 15:37:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:07,753 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:07,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:07,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1206 [2022-03-15 15:37:07,753 INFO L402 AbstractCegarLoop]: === Iteration 1208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:07,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:07,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1653504639, now seen corresponding path program 1203 times [2022-03-15 15:37:07,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:07,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283951181] [2022-03-15 15:37:07,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:07,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:07,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:07,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:07,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283951181] [2022-03-15 15:37:07,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283951181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:07,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:07,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:07,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053921318] [2022-03-15 15:37:07,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:07,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:07,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:07,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:07,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:07,921 INFO L87 Difference]: Start difference. First operand 5105 states and 24265 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:08,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:08,082 INFO L93 Difference]: Finished difference Result 10170 states and 45443 transitions. [2022-03-15 15:37:08,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:08,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:08,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:08,115 INFO L225 Difference]: With dead ends: 10170 [2022-03-15 15:37:08,115 INFO L226 Difference]: Without dead ends: 9755 [2022-03-15 15:37:08,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:08,115 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 168 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:08,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 209 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:08,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9755 states. [2022-03-15 15:37:08,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9755 to 5137. [2022-03-15 15:37:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.746300623052959) internal successors, (24377), 5136 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24377 transitions. [2022-03-15 15:37:08,272 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24377 transitions. Word has length 29 [2022-03-15 15:37:08,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:08,272 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24377 transitions. [2022-03-15 15:37:08,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:08,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24377 transitions. [2022-03-15 15:37:08,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:08,283 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:08,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:08,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1207 [2022-03-15 15:37:08,283 INFO L402 AbstractCegarLoop]: === Iteration 1209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:08,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:08,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1827490265, now seen corresponding path program 1204 times [2022-03-15 15:37:08,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:08,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027896387] [2022-03-15 15:37:08,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:08,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:08,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:08,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:08,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027896387] [2022-03-15 15:37:08,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027896387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:08,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:08,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:08,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030443909] [2022-03-15 15:37:08,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:08,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:08,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:08,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:08,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:08,403 INFO L87 Difference]: Start difference. First operand 5137 states and 24377 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:08,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:08,613 INFO L93 Difference]: Finished difference Result 10170 states and 45411 transitions. [2022-03-15 15:37:08,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:08,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:08,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:08,643 INFO L225 Difference]: With dead ends: 10170 [2022-03-15 15:37:08,644 INFO L226 Difference]: Without dead ends: 9723 [2022-03-15 15:37:08,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:08,644 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 151 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:08,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 243 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:08,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9723 states. [2022-03-15 15:37:08,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9723 to 5105. [2022-03-15 15:37:08,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.750979623824452) internal successors, (24249), 5104 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:08,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24249 transitions. [2022-03-15 15:37:08,781 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24249 transitions. Word has length 29 [2022-03-15 15:37:08,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:08,781 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24249 transitions. [2022-03-15 15:37:08,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:08,781 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24249 transitions. [2022-03-15 15:37:08,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:08,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:08,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:08,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1208 [2022-03-15 15:37:08,791 INFO L402 AbstractCegarLoop]: === Iteration 1210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:08,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:08,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1963185753, now seen corresponding path program 1205 times [2022-03-15 15:37:08,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:08,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866129363] [2022-03-15 15:37:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:08,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:08,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:08,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:08,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866129363] [2022-03-15 15:37:08,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866129363] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:08,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:08,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:08,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039765691] [2022-03-15 15:37:08,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:08,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:08,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:08,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:08,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:08,970 INFO L87 Difference]: Start difference. First operand 5105 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:09,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:09,177 INFO L93 Difference]: Finished difference Result 10310 states and 46045 transitions. [2022-03-15 15:37:09,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:09,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:09,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:09,207 INFO L225 Difference]: With dead ends: 10310 [2022-03-15 15:37:09,207 INFO L226 Difference]: Without dead ends: 9833 [2022-03-15 15:37:09,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:09,208 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 156 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:09,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 223 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:09,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2022-03-15 15:37:09,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 5153. [2022-03-15 15:37:09,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.740877329192546) internal successors, (24425), 5152 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:09,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24425 transitions. [2022-03-15 15:37:09,348 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24425 transitions. Word has length 29 [2022-03-15 15:37:09,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:09,348 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24425 transitions. [2022-03-15 15:37:09,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:09,348 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24425 transitions. [2022-03-15 15:37:09,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:09,358 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:09,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:09,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1209 [2022-03-15 15:37:09,358 INFO L402 AbstractCegarLoop]: === Iteration 1211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:09,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:09,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1250718917, now seen corresponding path program 1206 times [2022-03-15 15:37:09,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:09,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098933679] [2022-03-15 15:37:09,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:09,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:09,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:09,488 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:09,488 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098933679] [2022-03-15 15:37:09,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098933679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:09,488 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:09,488 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:09,488 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636713456] [2022-03-15 15:37:09,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:09,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:09,488 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:09,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:09,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:09,489 INFO L87 Difference]: Start difference. First operand 5153 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:09,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:09,661 INFO L93 Difference]: Finished difference Result 10248 states and 45728 transitions. [2022-03-15 15:37:09,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:09,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:09,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:09,694 INFO L225 Difference]: With dead ends: 10248 [2022-03-15 15:37:09,694 INFO L226 Difference]: Without dead ends: 9769 [2022-03-15 15:37:09,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:09,694 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 146 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:09,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 233 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:09,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9769 states. [2022-03-15 15:37:09,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9769 to 5089. [2022-03-15 15:37:09,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.754913522012578) internal successors, (24193), 5088 states have internal predecessors, (24193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:09,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24193 transitions. [2022-03-15 15:37:09,847 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24193 transitions. Word has length 29 [2022-03-15 15:37:09,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:09,847 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24193 transitions. [2022-03-15 15:37:09,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:09,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24193 transitions. [2022-03-15 15:37:09,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:09,859 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:09,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:09,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1210 [2022-03-15 15:37:09,859 INFO L402 AbstractCegarLoop]: === Iteration 1212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:09,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:09,859 INFO L85 PathProgramCache]: Analyzing trace with hash 536999169, now seen corresponding path program 1207 times [2022-03-15 15:37:09,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:09,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059288914] [2022-03-15 15:37:09,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:09,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:10,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:10,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:10,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059288914] [2022-03-15 15:37:10,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059288914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:10,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:10,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:10,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800877774] [2022-03-15 15:37:10,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:10,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:10,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:10,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:10,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:10,016 INFO L87 Difference]: Start difference. First operand 5089 states and 24193 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:10,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:10,209 INFO L93 Difference]: Finished difference Result 10362 states and 46335 transitions. [2022-03-15 15:37:10,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:10,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:10,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:10,241 INFO L225 Difference]: With dead ends: 10362 [2022-03-15 15:37:10,241 INFO L226 Difference]: Without dead ends: 9947 [2022-03-15 15:37:10,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:10,241 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 151 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:10,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 239 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:10,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9947 states. [2022-03-15 15:37:10,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9947 to 5161. [2022-03-15 15:37:10,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.7467054263565895) internal successors, (24493), 5160 states have internal predecessors, (24493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:10,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24493 transitions. [2022-03-15 15:37:10,417 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24493 transitions. Word has length 29 [2022-03-15 15:37:10,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:10,417 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24493 transitions. [2022-03-15 15:37:10,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:10,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24493 transitions. [2022-03-15 15:37:10,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:10,427 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:10,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:10,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1211 [2022-03-15 15:37:10,428 INFO L402 AbstractCegarLoop]: === Iteration 1213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:10,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:10,428 INFO L85 PathProgramCache]: Analyzing trace with hash 766286179, now seen corresponding path program 1208 times [2022-03-15 15:37:10,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:10,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268603332] [2022-03-15 15:37:10,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:10,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:10,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:10,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:10,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268603332] [2022-03-15 15:37:10,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268603332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:10,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:10,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:10,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133240015] [2022-03-15 15:37:10,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:10,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:10,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:10,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:10,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:10,577 INFO L87 Difference]: Start difference. First operand 5161 states and 24493 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:10,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:10,780 INFO L93 Difference]: Finished difference Result 10424 states and 46556 transitions. [2022-03-15 15:37:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:10,781 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:10,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:10,813 INFO L225 Difference]: With dead ends: 10424 [2022-03-15 15:37:10,813 INFO L226 Difference]: Without dead ends: 9899 [2022-03-15 15:37:10,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:10,813 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 164 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:10,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 219 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:10,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9899 states. [2022-03-15 15:37:10,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9899 to 5113. [2022-03-15 15:37:10,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.752151799687011) internal successors, (24293), 5112 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:10,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24293 transitions. [2022-03-15 15:37:10,961 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24293 transitions. Word has length 29 [2022-03-15 15:37:10,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:10,961 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24293 transitions. [2022-03-15 15:37:10,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:10,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24293 transitions. [2022-03-15 15:37:10,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:10,971 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:10,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:10,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1212 [2022-03-15 15:37:10,971 INFO L402 AbstractCegarLoop]: === Iteration 1214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:10,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:10,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1629969665, now seen corresponding path program 1209 times [2022-03-15 15:37:10,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:10,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740188092] [2022-03-15 15:37:10,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:10,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:11,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:11,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:11,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740188092] [2022-03-15 15:37:11,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740188092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:11,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:11,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:11,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008218839] [2022-03-15 15:37:11,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:11,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:11,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:11,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:11,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:11,134 INFO L87 Difference]: Start difference. First operand 5113 states and 24293 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:11,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:11,337 INFO L93 Difference]: Finished difference Result 10360 states and 46306 transitions. [2022-03-15 15:37:11,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:11,337 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:11,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:11,370 INFO L225 Difference]: With dead ends: 10360 [2022-03-15 15:37:11,370 INFO L226 Difference]: Without dead ends: 9945 [2022-03-15 15:37:11,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:11,371 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 165 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:11,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 224 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:11,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9945 states. [2022-03-15 15:37:11,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9945 to 5161. [2022-03-15 15:37:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.742054263565891) internal successors, (24469), 5160 states have internal predecessors, (24469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:11,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24469 transitions. [2022-03-15 15:37:11,522 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24469 transitions. Word has length 29 [2022-03-15 15:37:11,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:11,522 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24469 transitions. [2022-03-15 15:37:11,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:11,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24469 transitions. [2022-03-15 15:37:11,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:11,532 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:11,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:11,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1213 [2022-03-15 15:37:11,532 INFO L402 AbstractCegarLoop]: === Iteration 1215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:11,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:11,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2122808191, now seen corresponding path program 1210 times [2022-03-15 15:37:11,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:11,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568950585] [2022-03-15 15:37:11,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:11,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:11,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:11,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:11,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568950585] [2022-03-15 15:37:11,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568950585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:11,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:11,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:11,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242191423] [2022-03-15 15:37:11,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:11,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:11,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:11,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:11,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:11,682 INFO L87 Difference]: Start difference. First operand 5161 states and 24469 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:11,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:11,881 INFO L93 Difference]: Finished difference Result 10420 states and 46522 transitions. [2022-03-15 15:37:11,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:11,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:11,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:11,912 INFO L225 Difference]: With dead ends: 10420 [2022-03-15 15:37:11,913 INFO L226 Difference]: Without dead ends: 9897 [2022-03-15 15:37:11,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:11,913 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 173 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:11,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 200 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:11,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9897 states. [2022-03-15 15:37:12,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9897 to 5113. [2022-03-15 15:37:12,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.747456964006259) internal successors, (24269), 5112 states have internal predecessors, (24269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:12,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24269 transitions. [2022-03-15 15:37:12,052 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24269 transitions. Word has length 29 [2022-03-15 15:37:12,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:12,052 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24269 transitions. [2022-03-15 15:37:12,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:12,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24269 transitions. [2022-03-15 15:37:12,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:12,062 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:12,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:12,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1214 [2022-03-15 15:37:12,062 INFO L402 AbstractCegarLoop]: === Iteration 1216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:12,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:12,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2129246307, now seen corresponding path program 1211 times [2022-03-15 15:37:12,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:12,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841292886] [2022-03-15 15:37:12,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:12,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:12,229 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:12,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841292886] [2022-03-15 15:37:12,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841292886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:12,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:12,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:12,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126123269] [2022-03-15 15:37:12,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:12,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:12,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:12,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:12,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:12,230 INFO L87 Difference]: Start difference. First operand 5113 states and 24269 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:12,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:12,422 INFO L93 Difference]: Finished difference Result 10514 states and 46967 transitions. [2022-03-15 15:37:12,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:12,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:12,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:12,453 INFO L225 Difference]: With dead ends: 10514 [2022-03-15 15:37:12,453 INFO L226 Difference]: Without dead ends: 10037 [2022-03-15 15:37:12,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:12,454 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 149 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:12,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 232 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:12,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10037 states. [2022-03-15 15:37:12,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10037 to 5191. [2022-03-15 15:37:12,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.732562620423892) internal successors, (24562), 5190 states have internal predecessors, (24562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:12,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24562 transitions. [2022-03-15 15:37:12,593 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24562 transitions. Word has length 29 [2022-03-15 15:37:12,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:12,594 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24562 transitions. [2022-03-15 15:37:12,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:12,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24562 transitions. [2022-03-15 15:37:12,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:12,603 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:12,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:12,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1215 [2022-03-15 15:37:12,604 INFO L402 AbstractCegarLoop]: === Iteration 1217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:12,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:12,604 INFO L85 PathProgramCache]: Analyzing trace with hash 737101761, now seen corresponding path program 1212 times [2022-03-15 15:37:12,604 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:12,604 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540572781] [2022-03-15 15:37:12,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:12,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:12,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:12,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:12,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540572781] [2022-03-15 15:37:12,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540572781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:12,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:12,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:12,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596175390] [2022-03-15 15:37:12,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:12,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:12,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:12,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:12,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:12,774 INFO L87 Difference]: Start difference. First operand 5191 states and 24562 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:12,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:12,972 INFO L93 Difference]: Finished difference Result 10512 states and 46884 transitions. [2022-03-15 15:37:12,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:12,972 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:12,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:13,004 INFO L225 Difference]: With dead ends: 10512 [2022-03-15 15:37:13,004 INFO L226 Difference]: Without dead ends: 9935 [2022-03-15 15:37:13,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:13,004 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 168 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:13,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 213 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:13,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9935 states. [2022-03-15 15:37:13,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9935 to 5089. [2022-03-15 15:37:13,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.753341194968553) internal successors, (24185), 5088 states have internal predecessors, (24185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:13,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24185 transitions. [2022-03-15 15:37:13,143 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24185 transitions. Word has length 29 [2022-03-15 15:37:13,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:13,144 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24185 transitions. [2022-03-15 15:37:13,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:13,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24185 transitions. [2022-03-15 15:37:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:13,154 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:13,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:13,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1216 [2022-03-15 15:37:13,154 INFO L402 AbstractCegarLoop]: === Iteration 1218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:13,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:13,155 INFO L85 PathProgramCache]: Analyzing trace with hash -252387101, now seen corresponding path program 1213 times [2022-03-15 15:37:13,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:13,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546318184] [2022-03-15 15:37:13,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:13,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:13,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:13,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:13,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546318184] [2022-03-15 15:37:13,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546318184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:13,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:13,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:13,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256279256] [2022-03-15 15:37:13,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:13,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:13,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:13,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:13,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:13,328 INFO L87 Difference]: Start difference. First operand 5089 states and 24185 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:13,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:13,514 INFO L93 Difference]: Finished difference Result 10168 states and 45438 transitions. [2022-03-15 15:37:13,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:13,514 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:13,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:13,546 INFO L225 Difference]: With dead ends: 10168 [2022-03-15 15:37:13,546 INFO L226 Difference]: Without dead ends: 9753 [2022-03-15 15:37:13,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:13,546 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:13,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 221 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:13,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9753 states. [2022-03-15 15:37:13,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9753 to 5137. [2022-03-15 15:37:13,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.746300623052959) internal successors, (24377), 5136 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:13,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24377 transitions. [2022-03-15 15:37:13,698 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24377 transitions. Word has length 29 [2022-03-15 15:37:13,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:13,698 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24377 transitions. [2022-03-15 15:37:13,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:13,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24377 transitions. [2022-03-15 15:37:13,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:13,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:13,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:13,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1217 [2022-03-15 15:37:13,708 INFO L402 AbstractCegarLoop]: === Iteration 1219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:13,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:13,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1066359493, now seen corresponding path program 1214 times [2022-03-15 15:37:13,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:13,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284059461] [2022-03-15 15:37:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:13,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:13,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:13,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:13,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284059461] [2022-03-15 15:37:13,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284059461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:13,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:13,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:13,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686671598] [2022-03-15 15:37:13,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:13,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:13,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:13,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:13,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:13,832 INFO L87 Difference]: Start difference. First operand 5137 states and 24377 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:13,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:13,983 INFO L93 Difference]: Finished difference Result 10168 states and 45406 transitions. [2022-03-15 15:37:13,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:13,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:13,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:14,013 INFO L225 Difference]: With dead ends: 10168 [2022-03-15 15:37:14,013 INFO L226 Difference]: Without dead ends: 9721 [2022-03-15 15:37:14,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:14,013 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 164 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:14,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 206 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:14,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9721 states. [2022-03-15 15:37:14,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9721 to 5105. [2022-03-15 15:37:14,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.750979623824452) internal successors, (24249), 5104 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:14,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24249 transitions. [2022-03-15 15:37:14,155 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24249 transitions. Word has length 29 [2022-03-15 15:37:14,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:14,155 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24249 transitions. [2022-03-15 15:37:14,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:14,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24249 transitions. [2022-03-15 15:37:14,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:14,165 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:14,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:14,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1218 [2022-03-15 15:37:14,165 INFO L402 AbstractCegarLoop]: === Iteration 1220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:14,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:14,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2019518657, now seen corresponding path program 1215 times [2022-03-15 15:37:14,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:14,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266302264] [2022-03-15 15:37:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:14,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:14,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:14,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:14,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266302264] [2022-03-15 15:37:14,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266302264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:14,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:14,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:14,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434416075] [2022-03-15 15:37:14,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:14,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:14,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:14,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:14,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:14,282 INFO L87 Difference]: Start difference. First operand 5105 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:14,438 INFO L93 Difference]: Finished difference Result 10244 states and 45766 transitions. [2022-03-15 15:37:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:14,439 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:14,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:14,470 INFO L225 Difference]: With dead ends: 10244 [2022-03-15 15:37:14,470 INFO L226 Difference]: Without dead ends: 9829 [2022-03-15 15:37:14,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:14,470 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:14,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 207 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:14,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9829 states. [2022-03-15 15:37:14,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9829 to 5153. [2022-03-15 15:37:14,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.740877329192546) internal successors, (24425), 5152 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:14,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24425 transitions. [2022-03-15 15:37:14,618 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24425 transitions. Word has length 29 [2022-03-15 15:37:14,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:14,618 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24425 transitions. [2022-03-15 15:37:14,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:14,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24425 transitions. [2022-03-15 15:37:14,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:14,628 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:14,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:14,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1219 [2022-03-15 15:37:14,629 INFO L402 AbstractCegarLoop]: === Iteration 1221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:14,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:14,629 INFO L85 PathProgramCache]: Analyzing trace with hash -413206429, now seen corresponding path program 1216 times [2022-03-15 15:37:14,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:14,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527981760] [2022-03-15 15:37:14,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:14,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:14,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:14,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:14,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527981760] [2022-03-15 15:37:14,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527981760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:14,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:14,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:14,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884053425] [2022-03-15 15:37:14,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:14,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:14,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:14,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:14,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:14,746 INFO L87 Difference]: Start difference. First operand 5153 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:14,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:14,901 INFO L93 Difference]: Finished difference Result 10304 states and 45982 transitions. [2022-03-15 15:37:14,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:14,902 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:14,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:14,933 INFO L225 Difference]: With dead ends: 10304 [2022-03-15 15:37:14,933 INFO L226 Difference]: Without dead ends: 9781 [2022-03-15 15:37:14,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:14,934 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 171 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:14,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 198 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:14,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9781 states. [2022-03-15 15:37:15,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 5105. [2022-03-15 15:37:15,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.747844827586207) internal successors, (24233), 5104 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:15,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24233 transitions. [2022-03-15 15:37:15,086 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24233 transitions. Word has length 29 [2022-03-15 15:37:15,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:15,086 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24233 transitions. [2022-03-15 15:37:15,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:15,086 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24233 transitions. [2022-03-15 15:37:15,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:15,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:15,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:15,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1220 [2022-03-15 15:37:15,097 INFO L402 AbstractCegarLoop]: === Iteration 1222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:15,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:15,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1059923545, now seen corresponding path program 1217 times [2022-03-15 15:37:15,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:15,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713022243] [2022-03-15 15:37:15,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:15,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:15,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:15,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713022243] [2022-03-15 15:37:15,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713022243] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:15,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:15,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:15,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486608080] [2022-03-15 15:37:15,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:15,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:15,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:15,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:15,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:15,212 INFO L87 Difference]: Start difference. First operand 5105 states and 24233 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:15,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:15,389 INFO L93 Difference]: Finished difference Result 10244 states and 45750 transitions. [2022-03-15 15:37:15,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:15,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:15,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:15,421 INFO L225 Difference]: With dead ends: 10244 [2022-03-15 15:37:15,421 INFO L226 Difference]: Without dead ends: 9829 [2022-03-15 15:37:15,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:15,421 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 144 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:15,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 266 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:15,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9829 states. [2022-03-15 15:37:15,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9829 to 5153. [2022-03-15 15:37:15,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.737771739130435) internal successors, (24409), 5152 states have internal predecessors, (24409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:15,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24409 transitions. [2022-03-15 15:37:15,570 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24409 transitions. Word has length 29 [2022-03-15 15:37:15,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:15,571 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24409 transitions. [2022-03-15 15:37:15,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24409 transitions. [2022-03-15 15:37:15,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:15,581 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:15,581 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:15,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1221 [2022-03-15 15:37:15,581 INFO L402 AbstractCegarLoop]: === Iteration 1223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:15,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:15,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2140986171, now seen corresponding path program 1218 times [2022-03-15 15:37:15,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:15,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633751436] [2022-03-15 15:37:15,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:15,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:15,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:15,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:15,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633751436] [2022-03-15 15:37:15,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633751436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:15,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:15,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:15,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552368440] [2022-03-15 15:37:15,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:15,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:15,719 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:15,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:15,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:15,719 INFO L87 Difference]: Start difference. First operand 5153 states and 24409 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:15,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:15,926 INFO L93 Difference]: Finished difference Result 10304 states and 45966 transitions. [2022-03-15 15:37:15,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:15,926 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:15,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:15,958 INFO L225 Difference]: With dead ends: 10304 [2022-03-15 15:37:15,958 INFO L226 Difference]: Without dead ends: 9765 [2022-03-15 15:37:15,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:15,959 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 159 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:15,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 200 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:15,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2022-03-15 15:37:16,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 5089. [2022-03-15 15:37:16,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.751768867924528) internal successors, (24177), 5088 states have internal predecessors, (24177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24177 transitions. [2022-03-15 15:37:16,111 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24177 transitions. Word has length 29 [2022-03-15 15:37:16,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:16,112 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24177 transitions. [2022-03-15 15:37:16,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:16,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24177 transitions. [2022-03-15 15:37:16,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:16,122 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:16,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:16,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1222 [2022-03-15 15:37:16,122 INFO L402 AbstractCegarLoop]: === Iteration 1224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:16,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:16,122 INFO L85 PathProgramCache]: Analyzing trace with hash 918319833, now seen corresponding path program 1219 times [2022-03-15 15:37:16,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:16,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545745415] [2022-03-15 15:37:16,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:16,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:16,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:16,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:16,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545745415] [2022-03-15 15:37:16,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545745415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:16,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:16,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:16,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672952211] [2022-03-15 15:37:16,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:16,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:16,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:16,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:16,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:16,292 INFO L87 Difference]: Start difference. First operand 5089 states and 24177 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:16,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:16,514 INFO L93 Difference]: Finished difference Result 10424 states and 46588 transitions. [2022-03-15 15:37:16,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:16,515 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:16,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:16,546 INFO L225 Difference]: With dead ends: 10424 [2022-03-15 15:37:16,547 INFO L226 Difference]: Without dead ends: 9947 [2022-03-15 15:37:16,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:16,547 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:16,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 223 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:16,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9947 states. [2022-03-15 15:37:16,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9947 to 5161. [2022-03-15 15:37:16,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.743604651162791) internal successors, (24477), 5160 states have internal predecessors, (24477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:16,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24477 transitions. [2022-03-15 15:37:16,692 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24477 transitions. Word has length 29 [2022-03-15 15:37:16,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:16,692 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24477 transitions. [2022-03-15 15:37:16,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:16,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24477 transitions. [2022-03-15 15:37:16,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:16,703 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:16,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:16,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1223 [2022-03-15 15:37:16,703 INFO L402 AbstractCegarLoop]: === Iteration 1225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:16,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:16,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1999382459, now seen corresponding path program 1220 times [2022-03-15 15:37:16,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:16,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349381436] [2022-03-15 15:37:16,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:16,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:16,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:16,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:16,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349381436] [2022-03-15 15:37:16,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349381436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:16,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:16,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:16,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245257750] [2022-03-15 15:37:16,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:16,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:16,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:16,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:16,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:16,894 INFO L87 Difference]: Start difference. First operand 5161 states and 24477 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:17,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:17,127 INFO L93 Difference]: Finished difference Result 10362 states and 46271 transitions. [2022-03-15 15:37:17,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:17,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:17,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:17,159 INFO L225 Difference]: With dead ends: 10362 [2022-03-15 15:37:17,159 INFO L226 Difference]: Without dead ends: 9899 [2022-03-15 15:37:17,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:17,159 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 152 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:17,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 262 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:37:17,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9899 states. [2022-03-15 15:37:17,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9899 to 5113. [2022-03-15 15:37:17,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.749021909233177) internal successors, (24277), 5112 states have internal predecessors, (24277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:17,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24277 transitions. [2022-03-15 15:37:17,379 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24277 transitions. Word has length 29 [2022-03-15 15:37:17,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:17,379 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24277 transitions. [2022-03-15 15:37:17,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:17,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24277 transitions. [2022-03-15 15:37:17,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:17,390 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:17,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:17,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1224 [2022-03-15 15:37:17,390 INFO L402 AbstractCegarLoop]: === Iteration 1226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:17,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:17,391 INFO L85 PathProgramCache]: Analyzing trace with hash 437417787, now seen corresponding path program 1221 times [2022-03-15 15:37:17,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:17,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799959074] [2022-03-15 15:37:17,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:17,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:17,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:17,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:17,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799959074] [2022-03-15 15:37:17,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799959074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:17,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:17,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:17,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794234648] [2022-03-15 15:37:17,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:17,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:17,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:17,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:17,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:17,537 INFO L87 Difference]: Start difference. First operand 5113 states and 24277 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:17,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:17,744 INFO L93 Difference]: Finished difference Result 10514 states and 46975 transitions. [2022-03-15 15:37:17,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:17,744 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:17,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:17,773 INFO L225 Difference]: With dead ends: 10514 [2022-03-15 15:37:17,773 INFO L226 Difference]: Without dead ends: 10037 [2022-03-15 15:37:17,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:17,774 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 149 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:17,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 251 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:17,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10037 states. [2022-03-15 15:37:17,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10037 to 5191. [2022-03-15 15:37:17,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.734104046242774) internal successors, (24570), 5190 states have internal predecessors, (24570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24570 transitions. [2022-03-15 15:37:17,901 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24570 transitions. Word has length 29 [2022-03-15 15:37:17,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:17,902 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24570 transitions. [2022-03-15 15:37:17,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:17,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24570 transitions. [2022-03-15 15:37:17,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:17,911 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:17,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:17,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1225 [2022-03-15 15:37:17,911 INFO L402 AbstractCegarLoop]: === Iteration 1227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:17,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:17,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1250828485, now seen corresponding path program 1222 times [2022-03-15 15:37:17,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:17,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392410809] [2022-03-15 15:37:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:17,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:18,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:18,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:18,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392410809] [2022-03-15 15:37:18,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392410809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:18,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:18,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:18,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802994884] [2022-03-15 15:37:18,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:18,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:18,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:18,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:18,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:18,046 INFO L87 Difference]: Start difference. First operand 5191 states and 24570 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:18,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:18,224 INFO L93 Difference]: Finished difference Result 10512 states and 46892 transitions. [2022-03-15 15:37:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:18,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:18,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:18,254 INFO L225 Difference]: With dead ends: 10512 [2022-03-15 15:37:18,254 INFO L226 Difference]: Without dead ends: 9959 [2022-03-15 15:37:18,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:18,254 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 156 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:18,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 206 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:18,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9959 states. [2022-03-15 15:37:18,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9959 to 5113. [2022-03-15 15:37:18,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.744327073552426) internal successors, (24253), 5112 states have internal predecessors, (24253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:18,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24253 transitions. [2022-03-15 15:37:18,388 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24253 transitions. Word has length 29 [2022-03-15 15:37:18,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:18,388 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24253 transitions. [2022-03-15 15:37:18,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:18,389 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24253 transitions. [2022-03-15 15:37:18,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:18,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:18,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:18,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1226 [2022-03-15 15:37:18,398 INFO L402 AbstractCegarLoop]: === Iteration 1228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:18,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:18,399 INFO L85 PathProgramCache]: Analyzing trace with hash 825422749, now seen corresponding path program 1223 times [2022-03-15 15:37:18,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:18,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683497336] [2022-03-15 15:37:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:18,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:18,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:18,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:18,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683497336] [2022-03-15 15:37:18,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683497336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:18,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:18,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:18,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318683118] [2022-03-15 15:37:18,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:18,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:18,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:18,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:18,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:18,535 INFO L87 Difference]: Start difference. First operand 5113 states and 24253 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:18,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:18,747 INFO L93 Difference]: Finished difference Result 10360 states and 46266 transitions. [2022-03-15 15:37:18,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:18,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:18,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:18,777 INFO L225 Difference]: With dead ends: 10360 [2022-03-15 15:37:18,777 INFO L226 Difference]: Without dead ends: 9945 [2022-03-15 15:37:18,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:18,778 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:18,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 240 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:18,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9945 states. [2022-03-15 15:37:18,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9945 to 5161. [2022-03-15 15:37:18,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.734302325581395) internal successors, (24429), 5160 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:18,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24429 transitions. [2022-03-15 15:37:18,913 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24429 transitions. Word has length 29 [2022-03-15 15:37:18,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:18,913 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24429 transitions. [2022-03-15 15:37:18,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:18,913 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24429 transitions. [2022-03-15 15:37:18,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:18,923 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:18,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:18,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1227 [2022-03-15 15:37:18,923 INFO L402 AbstractCegarLoop]: === Iteration 1229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:18,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:18,923 INFO L85 PathProgramCache]: Analyzing trace with hash -21374213, now seen corresponding path program 1224 times [2022-03-15 15:37:18,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:18,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590233474] [2022-03-15 15:37:18,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:18,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:19,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:19,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:19,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590233474] [2022-03-15 15:37:19,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590233474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:19,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:19,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:19,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348687361] [2022-03-15 15:37:19,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:19,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:19,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:19,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:19,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:19,092 INFO L87 Difference]: Start difference. First operand 5161 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:19,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:19,291 INFO L93 Difference]: Finished difference Result 10420 states and 46482 transitions. [2022-03-15 15:37:19,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:19,291 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:19,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:19,322 INFO L225 Difference]: With dead ends: 10420 [2022-03-15 15:37:19,322 INFO L226 Difference]: Without dead ends: 9865 [2022-03-15 15:37:19,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:19,322 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 167 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:19,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 198 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:19,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9865 states. [2022-03-15 15:37:19,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9865 to 5081. [2022-03-15 15:37:19,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.754527559055118) internal successors, (24153), 5080 states have internal predecessors, (24153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:19,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24153 transitions. [2022-03-15 15:37:19,461 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24153 transitions. Word has length 29 [2022-03-15 15:37:19,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:19,461 INFO L470 AbstractCegarLoop]: Abstraction has 5081 states and 24153 transitions. [2022-03-15 15:37:19,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:19,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24153 transitions. [2022-03-15 15:37:19,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:19,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:19,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:19,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1228 [2022-03-15 15:37:19,471 INFO L402 AbstractCegarLoop]: === Iteration 1230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:19,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:19,471 INFO L85 PathProgramCache]: Analyzing trace with hash 976587777, now seen corresponding path program 1225 times [2022-03-15 15:37:19,471 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:19,471 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426971284] [2022-03-15 15:37:19,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:19,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:19,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:19,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:19,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426971284] [2022-03-15 15:37:19,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426971284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:19,636 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:19,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:19,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342069805] [2022-03-15 15:37:19,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:19,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:19,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:19,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:19,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:19,636 INFO L87 Difference]: Start difference. First operand 5081 states and 24153 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:19,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:19,824 INFO L93 Difference]: Finished difference Result 10214 states and 45661 transitions. [2022-03-15 15:37:19,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:19,825 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:19,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:19,853 INFO L225 Difference]: With dead ends: 10214 [2022-03-15 15:37:19,853 INFO L226 Difference]: Without dead ends: 9799 [2022-03-15 15:37:19,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:19,853 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 168 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:19,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 206 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:19,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9799 states. [2022-03-15 15:37:19,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9799 to 5153. [2022-03-15 15:37:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.746312111801243) internal successors, (24453), 5152 states have internal predecessors, (24453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:19,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24453 transitions. [2022-03-15 15:37:19,980 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24453 transitions. Word has length 29 [2022-03-15 15:37:19,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:19,980 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24453 transitions. [2022-03-15 15:37:19,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24453 transitions. [2022-03-15 15:37:19,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:19,989 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:19,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:19,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1229 [2022-03-15 15:37:19,990 INFO L402 AbstractCegarLoop]: === Iteration 1231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:19,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:19,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1205874787, now seen corresponding path program 1226 times [2022-03-15 15:37:19,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:19,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317794429] [2022-03-15 15:37:19,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:19,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:20,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:20,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:20,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317794429] [2022-03-15 15:37:20,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317794429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:20,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:20,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:20,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97465388] [2022-03-15 15:37:20,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:20,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:20,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:20,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:20,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:20,134 INFO L87 Difference]: Start difference. First operand 5153 states and 24453 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:20,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:20,332 INFO L93 Difference]: Finished difference Result 10276 states and 45882 transitions. [2022-03-15 15:37:20,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:20,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:20,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:20,363 INFO L225 Difference]: With dead ends: 10276 [2022-03-15 15:37:20,364 INFO L226 Difference]: Without dead ends: 9751 [2022-03-15 15:37:20,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:20,364 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:20,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 231 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:20,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9751 states. [2022-03-15 15:37:20,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9751 to 5105. [2022-03-15 15:37:20,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.753330721003135) internal successors, (24261), 5104 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:20,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24261 transitions. [2022-03-15 15:37:20,499 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24261 transitions. Word has length 29 [2022-03-15 15:37:20,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:20,499 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24261 transitions. [2022-03-15 15:37:20,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:20,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24261 transitions. [2022-03-15 15:37:20,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:20,509 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:20,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:20,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1230 [2022-03-15 15:37:20,509 INFO L402 AbstractCegarLoop]: === Iteration 1232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:20,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:20,509 INFO L85 PathProgramCache]: Analyzing trace with hash 495685731, now seen corresponding path program 1227 times [2022-03-15 15:37:20,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:20,510 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320639284] [2022-03-15 15:37:20,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:20,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:20,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:20,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:20,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320639284] [2022-03-15 15:37:20,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320639284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:20,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:20,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:20,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232996352] [2022-03-15 15:37:20,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:20,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:20,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:20,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:20,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:20,621 INFO L87 Difference]: Start difference. First operand 5105 states and 24261 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:20,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:20,775 INFO L93 Difference]: Finished difference Result 10136 states and 45296 transitions. [2022-03-15 15:37:20,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:20,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:20,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:20,806 INFO L225 Difference]: With dead ends: 10136 [2022-03-15 15:37:20,806 INFO L226 Difference]: Without dead ends: 9721 [2022-03-15 15:37:20,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:20,806 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 175 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:20,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 203 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:20,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9721 states. [2022-03-15 15:37:20,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9721 to 5137. [2022-03-15 15:37:20,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.745521806853582) internal successors, (24373), 5136 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:20,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24373 transitions. [2022-03-15 15:37:20,946 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24373 transitions. Word has length 29 [2022-03-15 15:37:20,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:20,947 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24373 transitions. [2022-03-15 15:37:20,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:20,947 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24373 transitions. [2022-03-15 15:37:20,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:20,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:20,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:20,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1231 [2022-03-15 15:37:20,957 INFO L402 AbstractCegarLoop]: === Iteration 1233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:20,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:20,957 INFO L85 PathProgramCache]: Analyzing trace with hash -318286661, now seen corresponding path program 1228 times [2022-03-15 15:37:20,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:20,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899387355] [2022-03-15 15:37:20,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:20,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:21,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:21,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:21,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899387355] [2022-03-15 15:37:21,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899387355] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:21,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:21,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:21,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081917804] [2022-03-15 15:37:21,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:21,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:21,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:21,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:21,073 INFO L87 Difference]: Start difference. First operand 5137 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:21,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:21,231 INFO L93 Difference]: Finished difference Result 10136 states and 45264 transitions. [2022-03-15 15:37:21,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:21,231 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:21,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:21,263 INFO L225 Difference]: With dead ends: 10136 [2022-03-15 15:37:21,263 INFO L226 Difference]: Without dead ends: 9689 [2022-03-15 15:37:21,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:21,263 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 156 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:21,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 215 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:21,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9689 states. [2022-03-15 15:37:21,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9689 to 5105. [2022-03-15 15:37:21,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.75019592476489) internal successors, (24245), 5104 states have internal predecessors, (24245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:21,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24245 transitions. [2022-03-15 15:37:21,414 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24245 transitions. Word has length 29 [2022-03-15 15:37:21,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:21,414 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24245 transitions. [2022-03-15 15:37:21,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:21,414 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24245 transitions. [2022-03-15 15:37:21,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:21,425 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:21,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:21,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1232 [2022-03-15 15:37:21,425 INFO L402 AbstractCegarLoop]: === Iteration 1234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:21,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:21,425 INFO L85 PathProgramCache]: Analyzing trace with hash -182591173, now seen corresponding path program 1229 times [2022-03-15 15:37:21,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:21,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927339317] [2022-03-15 15:37:21,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:21,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:21,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:21,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:21,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927339317] [2022-03-15 15:37:21,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927339317] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:21,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:21,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:21,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880397963] [2022-03-15 15:37:21,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:21,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:21,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:21,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:21,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:21,538 INFO L87 Difference]: Start difference. First operand 5105 states and 24245 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:21,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:21,748 INFO L93 Difference]: Finished difference Result 10276 states and 45898 transitions. [2022-03-15 15:37:21,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:21,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:21,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:21,784 INFO L225 Difference]: With dead ends: 10276 [2022-03-15 15:37:21,784 INFO L226 Difference]: Without dead ends: 9799 [2022-03-15 15:37:21,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:21,784 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 182 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:21,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 196 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:21,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9799 states. [2022-03-15 15:37:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9799 to 5153. [2022-03-15 15:37:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.740100931677019) internal successors, (24421), 5152 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:21,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24421 transitions. [2022-03-15 15:37:21,935 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24421 transitions. Word has length 29 [2022-03-15 15:37:21,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:21,935 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24421 transitions. [2022-03-15 15:37:21,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:21,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24421 transitions. [2022-03-15 15:37:21,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:21,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:21,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:21,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1233 [2022-03-15 15:37:21,946 INFO L402 AbstractCegarLoop]: === Iteration 1235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:21,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:21,946 INFO L85 PathProgramCache]: Analyzing trace with hash 898471453, now seen corresponding path program 1230 times [2022-03-15 15:37:21,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:21,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361398817] [2022-03-15 15:37:21,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:21,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:22,063 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:22,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361398817] [2022-03-15 15:37:22,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361398817] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:22,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:22,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:22,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36681338] [2022-03-15 15:37:22,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:22,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:22,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:22,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:22,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:22,063 INFO L87 Difference]: Start difference. First operand 5153 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:22,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:22,214 INFO L93 Difference]: Finished difference Result 10214 states and 45581 transitions. [2022-03-15 15:37:22,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:22,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:22,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:22,244 INFO L225 Difference]: With dead ends: 10214 [2022-03-15 15:37:22,244 INFO L226 Difference]: Without dead ends: 9735 [2022-03-15 15:37:22,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:22,244 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 180 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:22,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 185 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:22,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9735 states. [2022-03-15 15:37:22,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9735 to 5089. [2022-03-15 15:37:22,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.754127358490566) internal successors, (24189), 5088 states have internal predecessors, (24189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:22,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24189 transitions. [2022-03-15 15:37:22,378 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24189 transitions. Word has length 29 [2022-03-15 15:37:22,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:22,378 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24189 transitions. [2022-03-15 15:37:22,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:22,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24189 transitions. [2022-03-15 15:37:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:22,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:22,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:22,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1234 [2022-03-15 15:37:22,388 INFO L402 AbstractCegarLoop]: === Iteration 1236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:22,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:22,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2067653633, now seen corresponding path program 1231 times [2022-03-15 15:37:22,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:22,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653660958] [2022-03-15 15:37:22,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:22,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:22,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:22,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653660958] [2022-03-15 15:37:22,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653660958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:22,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:22,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:22,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016952962] [2022-03-15 15:37:22,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:22,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:22,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:22,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:22,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:22,562 INFO L87 Difference]: Start difference. First operand 5089 states and 24189 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:22,719 INFO L93 Difference]: Finished difference Result 10262 states and 45901 transitions. [2022-03-15 15:37:22,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:22,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:22,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:22,749 INFO L225 Difference]: With dead ends: 10262 [2022-03-15 15:37:22,749 INFO L226 Difference]: Without dead ends: 9847 [2022-03-15 15:37:22,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:22,749 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:22,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 218 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:22,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9847 states. [2022-03-15 15:37:22,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9847 to 5161. [2022-03-15 15:37:22,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.745930232558139) internal successors, (24489), 5160 states have internal predecessors, (24489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:22,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24489 transitions. [2022-03-15 15:37:22,884 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24489 transitions. Word has length 29 [2022-03-15 15:37:22,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:22,885 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24489 transitions. [2022-03-15 15:37:22,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:22,885 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24489 transitions. [2022-03-15 15:37:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:22,895 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:22,895 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:22,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1235 [2022-03-15 15:37:22,895 INFO L402 AbstractCegarLoop]: === Iteration 1237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:22,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:22,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1998026653, now seen corresponding path program 1232 times [2022-03-15 15:37:22,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:22,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112268051] [2022-03-15 15:37:22,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:22,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:23,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:23,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:23,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112268051] [2022-03-15 15:37:23,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112268051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:23,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:23,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:23,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739192432] [2022-03-15 15:37:23,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:23,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:23,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:23,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:23,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:23,017 INFO L87 Difference]: Start difference. First operand 5161 states and 24489 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:23,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:23,172 INFO L93 Difference]: Finished difference Result 10324 states and 46122 transitions. [2022-03-15 15:37:23,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:23,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:23,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:23,201 INFO L225 Difference]: With dead ends: 10324 [2022-03-15 15:37:23,201 INFO L226 Difference]: Without dead ends: 9799 [2022-03-15 15:37:23,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:23,201 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 201 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:23,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 189 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:23,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9799 states. [2022-03-15 15:37:23,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9799 to 5113. [2022-03-15 15:37:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.751369327073553) internal successors, (24289), 5112 states have internal predecessors, (24289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:23,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24289 transitions. [2022-03-15 15:37:23,329 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24289 transitions. Word has length 29 [2022-03-15 15:37:23,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:23,329 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24289 transitions. [2022-03-15 15:37:23,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:23,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24289 transitions. [2022-03-15 15:37:23,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:23,339 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:23,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:23,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1236 [2022-03-15 15:37:23,339 INFO L402 AbstractCegarLoop]: === Iteration 1238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:23,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:23,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1754606593, now seen corresponding path program 1233 times [2022-03-15 15:37:23,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:23,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92358405] [2022-03-15 15:37:23,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:23,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:23,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:23,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:23,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92358405] [2022-03-15 15:37:23,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92358405] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:23,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:23,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:23,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432879503] [2022-03-15 15:37:23,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:23,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:23,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:23,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:23,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:23,461 INFO L87 Difference]: Start difference. First operand 5113 states and 24289 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:23,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:23,701 INFO L93 Difference]: Finished difference Result 10152 states and 45432 transitions. [2022-03-15 15:37:23,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:23,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:23,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:23,731 INFO L225 Difference]: With dead ends: 10152 [2022-03-15 15:37:23,732 INFO L226 Difference]: Without dead ends: 9737 [2022-03-15 15:37:23,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:23,734 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 155 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:23,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 248 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:37:23,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9737 states. [2022-03-15 15:37:23,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9737 to 5161. [2022-03-15 15:37:23,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.741279069767442) internal successors, (24465), 5160 states have internal predecessors, (24465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:23,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24465 transitions. [2022-03-15 15:37:23,873 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24465 transitions. Word has length 29 [2022-03-15 15:37:23,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:23,873 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24465 transitions. [2022-03-15 15:37:23,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:23,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24465 transitions. [2022-03-15 15:37:23,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:23,884 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:23,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:23,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1237 [2022-03-15 15:37:23,884 INFO L402 AbstractCegarLoop]: === Iteration 1239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:23,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:23,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1473113215, now seen corresponding path program 1234 times [2022-03-15 15:37:23,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:23,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183899139] [2022-03-15 15:37:23,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:23,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:24,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:24,132 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:24,132 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183899139] [2022-03-15 15:37:24,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183899139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:24,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:24,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:24,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444038987] [2022-03-15 15:37:24,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:24,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:24,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:24,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:24,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:24,133 INFO L87 Difference]: Start difference. First operand 5161 states and 24465 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:24,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:24,286 INFO L93 Difference]: Finished difference Result 9880 states and 44423 transitions. [2022-03-15 15:37:24,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:24,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:24,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:24,317 INFO L225 Difference]: With dead ends: 9880 [2022-03-15 15:37:24,317 INFO L226 Difference]: Without dead ends: 9369 [2022-03-15 15:37:24,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:24,318 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 160 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:24,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 206 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:24,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9369 states. [2022-03-15 15:37:24,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9369 to 5113. [2022-03-15 15:37:24,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.746674491392802) internal successors, (24265), 5112 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:24,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24265 transitions. [2022-03-15 15:37:24,465 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24265 transitions. Word has length 29 [2022-03-15 15:37:24,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:24,465 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24265 transitions. [2022-03-15 15:37:24,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:24,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24265 transitions. [2022-03-15 15:37:24,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:24,475 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:24,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:24,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1238 [2022-03-15 15:37:24,476 INFO L402 AbstractCegarLoop]: === Iteration 1240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:24,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:24,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1434543971, now seen corresponding path program 1235 times [2022-03-15 15:37:24,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:24,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626655397] [2022-03-15 15:37:24,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:24,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:24,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:24,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:24,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626655397] [2022-03-15 15:37:24,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626655397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:24,583 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:24,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:24,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128379007] [2022-03-15 15:37:24,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:24,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:24,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:24,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:24,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:24,584 INFO L87 Difference]: Start difference. First operand 5113 states and 24265 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:24,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:24,782 INFO L93 Difference]: Finished difference Result 10238 states and 45801 transitions. [2022-03-15 15:37:24,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:24,782 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:24,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:24,811 INFO L225 Difference]: With dead ends: 10238 [2022-03-15 15:37:24,811 INFO L226 Difference]: Without dead ends: 9761 [2022-03-15 15:37:24,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:24,812 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 161 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:24,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 225 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:24,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9761 states. [2022-03-15 15:37:24,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9761 to 5185. [2022-03-15 15:37:24,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.733989197530864) internal successors, (24541), 5184 states have internal predecessors, (24541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24541 transitions. [2022-03-15 15:37:24,943 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24541 transitions. Word has length 29 [2022-03-15 15:37:24,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:24,943 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24541 transitions. [2022-03-15 15:37:24,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:24,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24541 transitions. [2022-03-15 15:37:24,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:24,953 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:24,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:24,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1239 [2022-03-15 15:37:24,954 INFO L402 AbstractCegarLoop]: === Iteration 1241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:24,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:24,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1344784321, now seen corresponding path program 1236 times [2022-03-15 15:37:24,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:24,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2325068] [2022-03-15 15:37:24,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:24,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:25,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:25,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:25,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2325068] [2022-03-15 15:37:25,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2325068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:25,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:25,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:25,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917252015] [2022-03-15 15:37:25,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:25,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:25,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:25,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:25,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:25,121 INFO L87 Difference]: Start difference. First operand 5185 states and 24541 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:25,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:25,317 INFO L93 Difference]: Finished difference Result 9904 states and 44499 transitions. [2022-03-15 15:37:25,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:25,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:25,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:25,346 INFO L225 Difference]: With dead ends: 9904 [2022-03-15 15:37:25,346 INFO L226 Difference]: Without dead ends: 9345 [2022-03-15 15:37:25,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:25,346 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:25,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 224 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:25,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9345 states. [2022-03-15 15:37:25,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9345 to 5089. [2022-03-15 15:37:25,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.752555031446541) internal successors, (24181), 5088 states have internal predecessors, (24181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:25,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24181 transitions. [2022-03-15 15:37:25,476 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24181 transitions. Word has length 29 [2022-03-15 15:37:25,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:25,476 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24181 transitions. [2022-03-15 15:37:25,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:25,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24181 transitions. [2022-03-15 15:37:25,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:25,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:25,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:25,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1240 [2022-03-15 15:37:25,486 INFO L402 AbstractCegarLoop]: === Iteration 1242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:25,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:25,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1278267363, now seen corresponding path program 1237 times [2022-03-15 15:37:25,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:25,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581316992] [2022-03-15 15:37:25,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:25,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:25,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:25,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:25,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581316992] [2022-03-15 15:37:25,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581316992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:25,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:25,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:25,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935072402] [2022-03-15 15:37:25,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:25,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:25,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:25,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:25,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:25,603 INFO L87 Difference]: Start difference. First operand 5089 states and 24181 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:25,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:25,784 INFO L93 Difference]: Finished difference Result 10090 states and 45107 transitions. [2022-03-15 15:37:25,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:25,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:25,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:25,815 INFO L225 Difference]: With dead ends: 10090 [2022-03-15 15:37:25,815 INFO L226 Difference]: Without dead ends: 9675 [2022-03-15 15:37:25,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:25,815 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 158 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:25,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 232 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:25,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9675 states. [2022-03-15 15:37:25,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9675 to 5137. [2022-03-15 15:37:25,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.745521806853582) internal successors, (24373), 5136 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:25,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24373 transitions. [2022-03-15 15:37:25,947 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24373 transitions. Word has length 29 [2022-03-15 15:37:25,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:25,947 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24373 transitions. [2022-03-15 15:37:25,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:25,947 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24373 transitions. [2022-03-15 15:37:25,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:25,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:25,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:25,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1241 [2022-03-15 15:37:25,957 INFO L402 AbstractCegarLoop]: === Iteration 1243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:25,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:25,957 INFO L85 PathProgramCache]: Analyzing trace with hash 464294971, now seen corresponding path program 1238 times [2022-03-15 15:37:25,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:25,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356494140] [2022-03-15 15:37:25,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:25,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:26,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:26,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356494140] [2022-03-15 15:37:26,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356494140] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:26,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:26,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:26,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82187575] [2022-03-15 15:37:26,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:26,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:26,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:26,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:26,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:26,069 INFO L87 Difference]: Start difference. First operand 5137 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:26,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:26,207 INFO L93 Difference]: Finished difference Result 10090 states and 45075 transitions. [2022-03-15 15:37:26,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:26,207 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:26,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:26,235 INFO L225 Difference]: With dead ends: 10090 [2022-03-15 15:37:26,235 INFO L226 Difference]: Without dead ends: 9643 [2022-03-15 15:37:26,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:26,235 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 180 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:26,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 193 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:26,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9643 states. [2022-03-15 15:37:26,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9643 to 5105. [2022-03-15 15:37:26,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.75019592476489) internal successors, (24245), 5104 states have internal predecessors, (24245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:26,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24245 transitions. [2022-03-15 15:37:26,364 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24245 transitions. Word has length 29 [2022-03-15 15:37:26,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:26,364 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24245 transitions. [2022-03-15 15:37:26,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:26,364 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24245 transitions. [2022-03-15 15:37:26,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:26,374 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:26,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:26,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1242 [2022-03-15 15:37:26,374 INFO L402 AbstractCegarLoop]: === Iteration 1244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:26,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:26,375 INFO L85 PathProgramCache]: Analyzing trace with hash -764696383, now seen corresponding path program 1239 times [2022-03-15 15:37:26,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:26,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465192214] [2022-03-15 15:37:26,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:26,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:26,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:26,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:26,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465192214] [2022-03-15 15:37:26,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465192214] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:26,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:26,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:26,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841998808] [2022-03-15 15:37:26,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:26,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:26,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:26,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:26,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:26,537 INFO L87 Difference]: Start difference. First operand 5105 states and 24245 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:26,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:26,706 INFO L93 Difference]: Finished difference Result 10058 states and 44995 transitions. [2022-03-15 15:37:26,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:26,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:26,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:26,737 INFO L225 Difference]: With dead ends: 10058 [2022-03-15 15:37:26,737 INFO L226 Difference]: Without dead ends: 9643 [2022-03-15 15:37:26,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:26,737 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 176 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:26,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 203 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:26,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9643 states. [2022-03-15 15:37:26,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9643 to 5153. [2022-03-15 15:37:26,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.740100931677019) internal successors, (24421), 5152 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:26,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24421 transitions. [2022-03-15 15:37:26,872 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24421 transitions. Word has length 29 [2022-03-15 15:37:26,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:26,872 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24421 transitions. [2022-03-15 15:37:26,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:26,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24421 transitions. [2022-03-15 15:37:26,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:26,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:26,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:26,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1243 [2022-03-15 15:37:26,882 INFO L402 AbstractCegarLoop]: === Iteration 1245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:26,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:26,883 INFO L85 PathProgramCache]: Analyzing trace with hash 236488547, now seen corresponding path program 1240 times [2022-03-15 15:37:26,883 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:26,883 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92760492] [2022-03-15 15:37:26,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:26,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:26,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:26,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:26,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92760492] [2022-03-15 15:37:26,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92760492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:26,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:26,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:26,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906637544] [2022-03-15 15:37:26,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:26,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:26,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:26,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:26,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:26,995 INFO L87 Difference]: Start difference. First operand 5153 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:27,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:27,176 INFO L93 Difference]: Finished difference Result 9786 states and 43986 transitions. [2022-03-15 15:37:27,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:27,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:27,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:27,206 INFO L225 Difference]: With dead ends: 9786 [2022-03-15 15:37:27,206 INFO L226 Difference]: Without dead ends: 9275 [2022-03-15 15:37:27,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:27,207 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 148 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:27,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 217 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:27,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9275 states. [2022-03-15 15:37:27,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9275 to 5105. [2022-03-15 15:37:27,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.747061128526646) internal successors, (24229), 5104 states have internal predecessors, (24229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:27,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24229 transitions. [2022-03-15 15:37:27,340 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24229 transitions. Word has length 29 [2022-03-15 15:37:27,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:27,340 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24229 transitions. [2022-03-15 15:37:27,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:27,341 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24229 transitions. [2022-03-15 15:37:27,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:27,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:27,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:27,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1244 [2022-03-15 15:37:27,351 INFO L402 AbstractCegarLoop]: === Iteration 1246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:27,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:27,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1354004903, now seen corresponding path program 1241 times [2022-03-15 15:37:27,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:27,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768606951] [2022-03-15 15:37:27,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:27,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:27,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:27,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:27,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768606951] [2022-03-15 15:37:27,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768606951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:27,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:27,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:27,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468068589] [2022-03-15 15:37:27,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:27,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:27,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:27,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:27,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:27,469 INFO L87 Difference]: Start difference. First operand 5105 states and 24229 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:27,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:27,645 INFO L93 Difference]: Finished difference Result 10058 states and 44979 transitions. [2022-03-15 15:37:27,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:27,645 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:27,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:27,675 INFO L225 Difference]: With dead ends: 10058 [2022-03-15 15:37:27,675 INFO L226 Difference]: Without dead ends: 9643 [2022-03-15 15:37:27,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:27,675 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 147 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:27,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 243 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:27,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9643 states. [2022-03-15 15:37:27,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9643 to 5153. [2022-03-15 15:37:27,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.736995341614906) internal successors, (24405), 5152 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:27,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24405 transitions. [2022-03-15 15:37:27,811 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24405 transitions. Word has length 29 [2022-03-15 15:37:27,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:27,811 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24405 transitions. [2022-03-15 15:37:27,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:27,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24405 transitions. [2022-03-15 15:37:27,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:27,821 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:27,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:27,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1245 [2022-03-15 15:37:27,821 INFO L402 AbstractCegarLoop]: === Iteration 1247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:27,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:27,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1446283835, now seen corresponding path program 1242 times [2022-03-15 15:37:27,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:27,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026516261] [2022-03-15 15:37:27,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:27,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:27,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:27,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026516261] [2022-03-15 15:37:27,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026516261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:27,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:27,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:27,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523779719] [2022-03-15 15:37:27,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:27,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:27,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:27,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:27,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:27,941 INFO L87 Difference]: Start difference. First operand 5153 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:28,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:28,095 INFO L93 Difference]: Finished difference Result 9786 states and 43970 transitions. [2022-03-15 15:37:28,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:28,095 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:28,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:28,123 INFO L225 Difference]: With dead ends: 9786 [2022-03-15 15:37:28,124 INFO L226 Difference]: Without dead ends: 9259 [2022-03-15 15:37:28,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:28,124 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 145 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:28,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 205 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:28,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9259 states. [2022-03-15 15:37:28,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9259 to 5089. [2022-03-15 15:37:28,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.7509827044025155) internal successors, (24173), 5088 states have internal predecessors, (24173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:28,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24173 transitions. [2022-03-15 15:37:28,255 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24173 transitions. Word has length 29 [2022-03-15 15:37:28,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:28,255 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24173 transitions. [2022-03-15 15:37:28,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:28,255 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24173 transitions. [2022-03-15 15:37:28,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:28,265 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:28,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:28,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1246 [2022-03-15 15:37:28,265 INFO L402 AbstractCegarLoop]: === Iteration 1248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:28,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:28,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1865895207, now seen corresponding path program 1243 times [2022-03-15 15:37:28,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:28,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564711956] [2022-03-15 15:37:28,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:28,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:28,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:28,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564711956] [2022-03-15 15:37:28,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564711956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:28,385 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:28,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:28,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104465259] [2022-03-15 15:37:28,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:28,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:28,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:28,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:28,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:28,385 INFO L87 Difference]: Start difference. First operand 5089 states and 24173 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:28,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:28,557 INFO L93 Difference]: Finished difference Result 10324 states and 46154 transitions. [2022-03-15 15:37:28,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:28,557 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:28,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:28,588 INFO L225 Difference]: With dead ends: 10324 [2022-03-15 15:37:28,588 INFO L226 Difference]: Without dead ends: 9847 [2022-03-15 15:37:28,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:28,589 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 156 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:28,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 238 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:28,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9847 states. [2022-03-15 15:37:28,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9847 to 5161. [2022-03-15 15:37:28,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.7428294573643415) internal successors, (24473), 5160 states have internal predecessors, (24473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:28,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24473 transitions. [2022-03-15 15:37:28,729 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24473 transitions. Word has length 29 [2022-03-15 15:37:28,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:28,729 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24473 transitions. [2022-03-15 15:37:28,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:28,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24473 transitions. [2022-03-15 15:37:28,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:28,739 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:28,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:28,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1247 [2022-03-15 15:37:28,739 INFO L402 AbstractCegarLoop]: === Iteration 1249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:28,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:28,740 INFO L85 PathProgramCache]: Analyzing trace with hash -784832581, now seen corresponding path program 1244 times [2022-03-15 15:37:28,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:28,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427900653] [2022-03-15 15:37:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:28,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:28,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:28,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:28,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427900653] [2022-03-15 15:37:28,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427900653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:28,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:28,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:28,886 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35257396] [2022-03-15 15:37:28,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:28,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:28,886 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:28,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:28,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:28,887 INFO L87 Difference]: Start difference. First operand 5161 states and 24473 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:29,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:29,040 INFO L93 Difference]: Finished difference Result 10262 states and 45837 transitions. [2022-03-15 15:37:29,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:29,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:29,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:29,071 INFO L225 Difference]: With dead ends: 10262 [2022-03-15 15:37:29,071 INFO L226 Difference]: Without dead ends: 9799 [2022-03-15 15:37:29,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:29,071 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 160 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:29,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 226 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:29,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9799 states. [2022-03-15 15:37:29,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9799 to 5113. [2022-03-15 15:37:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.748239436619718) internal successors, (24273), 5112 states have internal predecessors, (24273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:29,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24273 transitions. [2022-03-15 15:37:29,204 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24273 transitions. Word has length 29 [2022-03-15 15:37:29,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:29,204 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24273 transitions. [2022-03-15 15:37:29,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:29,204 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24273 transitions. [2022-03-15 15:37:29,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:29,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:29,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:29,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1248 [2022-03-15 15:37:29,214 INFO L402 AbstractCegarLoop]: === Iteration 1250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:29,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:29,214 INFO L85 PathProgramCache]: Analyzing trace with hash 562054715, now seen corresponding path program 1245 times [2022-03-15 15:37:29,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:29,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663742223] [2022-03-15 15:37:29,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:29,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:29,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:29,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663742223] [2022-03-15 15:37:29,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663742223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:29,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:29,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:29,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987212732] [2022-03-15 15:37:29,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:29,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:29,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:29,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:29,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:29,357 INFO L87 Difference]: Start difference. First operand 5113 states and 24273 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:29,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:29,536 INFO L93 Difference]: Finished difference Result 10238 states and 45809 transitions. [2022-03-15 15:37:29,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:29,537 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:29,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:29,566 INFO L225 Difference]: With dead ends: 10238 [2022-03-15 15:37:29,567 INFO L226 Difference]: Without dead ends: 9761 [2022-03-15 15:37:29,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:29,567 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 156 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:29,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 211 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:29,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9761 states. [2022-03-15 15:37:29,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9761 to 5185. [2022-03-15 15:37:29,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.735532407407407) internal successors, (24549), 5184 states have internal predecessors, (24549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:29,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24549 transitions. [2022-03-15 15:37:29,709 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24549 transitions. Word has length 29 [2022-03-15 15:37:29,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:29,709 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24549 transitions. [2022-03-15 15:37:29,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24549 transitions. [2022-03-15 15:37:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:29,720 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:29,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:29,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1249 [2022-03-15 15:37:29,721 INFO L402 AbstractCegarLoop]: === Iteration 1251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:29,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1945530821, now seen corresponding path program 1246 times [2022-03-15 15:37:29,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:29,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529663735] [2022-03-15 15:37:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:29,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:29,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:29,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:29,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529663735] [2022-03-15 15:37:29,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529663735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:29,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:29,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:29,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986318492] [2022-03-15 15:37:29,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:29,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:29,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:29,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:29,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:29,870 INFO L87 Difference]: Start difference. First operand 5185 states and 24549 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:30,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:30,063 INFO L93 Difference]: Finished difference Result 9904 states and 44507 transitions. [2022-03-15 15:37:30,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:30,063 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:30,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:30,092 INFO L225 Difference]: With dead ends: 9904 [2022-03-15 15:37:30,092 INFO L226 Difference]: Without dead ends: 9369 [2022-03-15 15:37:30,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:30,093 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 146 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:30,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 239 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:30,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9369 states. [2022-03-15 15:37:30,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9369 to 5113. [2022-03-15 15:37:30,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.743544600938967) internal successors, (24249), 5112 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:30,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24249 transitions. [2022-03-15 15:37:30,225 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24249 transitions. Word has length 29 [2022-03-15 15:37:30,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:30,225 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24249 transitions. [2022-03-15 15:37:30,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:30,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24249 transitions. [2022-03-15 15:37:30,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:30,235 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:30,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:30,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1250 [2022-03-15 15:37:30,236 INFO L402 AbstractCegarLoop]: === Iteration 1252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:30,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:30,236 INFO L85 PathProgramCache]: Analyzing trace with hash 950059677, now seen corresponding path program 1247 times [2022-03-15 15:37:30,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:30,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807373095] [2022-03-15 15:37:30,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:30,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:30,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:30,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:30,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807373095] [2022-03-15 15:37:30,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807373095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:30,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:30,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:30,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534918144] [2022-03-15 15:37:30,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:30,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:30,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:30,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:30,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:30,387 INFO L87 Difference]: Start difference. First operand 5113 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:30,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:30,560 INFO L93 Difference]: Finished difference Result 10152 states and 45392 transitions. [2022-03-15 15:37:30,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:30,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:30,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:30,594 INFO L225 Difference]: With dead ends: 10152 [2022-03-15 15:37:30,594 INFO L226 Difference]: Without dead ends: 9737 [2022-03-15 15:37:30,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:30,594 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 164 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:30,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 208 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:30,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9737 states. [2022-03-15 15:37:30,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9737 to 5161. [2022-03-15 15:37:30,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.733527131782946) internal successors, (24425), 5160 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:30,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24425 transitions. [2022-03-15 15:37:30,790 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24425 transitions. Word has length 29 [2022-03-15 15:37:30,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:30,790 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24425 transitions. [2022-03-15 15:37:30,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:30,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24425 transitions. [2022-03-15 15:37:30,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:30,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:30,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:30,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1251 [2022-03-15 15:37:30,801 INFO L402 AbstractCegarLoop]: === Iteration 1253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:30,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:30,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1859664635, now seen corresponding path program 1248 times [2022-03-15 15:37:30,802 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:30,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895264781] [2022-03-15 15:37:30,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:30,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:30,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:30,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895264781] [2022-03-15 15:37:30,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895264781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:30,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:30,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:30,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776698606] [2022-03-15 15:37:30,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:30,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:30,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:30,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:30,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:30,967 INFO L87 Difference]: Start difference. First operand 5161 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:31,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:31,161 INFO L93 Difference]: Finished difference Result 9880 states and 44383 transitions. [2022-03-15 15:37:31,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:31,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:31,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:31,192 INFO L225 Difference]: With dead ends: 9880 [2022-03-15 15:37:31,192 INFO L226 Difference]: Without dead ends: 9337 [2022-03-15 15:37:31,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:31,192 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 161 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:31,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 187 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:31,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9337 states. [2022-03-15 15:37:31,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9337 to 5081. [2022-03-15 15:37:31,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.753740157480315) internal successors, (24149), 5080 states have internal predecessors, (24149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:31,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24149 transitions. [2022-03-15 15:37:31,347 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24149 transitions. Word has length 29 [2022-03-15 15:37:31,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:31,347 INFO L470 AbstractCegarLoop]: Abstraction has 5081 states and 24149 transitions. [2022-03-15 15:37:31,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:31,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24149 transitions. [2022-03-15 15:37:31,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:31,357 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:31,357 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:31,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1252 [2022-03-15 15:37:31,357 INFO L402 AbstractCegarLoop]: === Iteration 1254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:31,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:31,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1709373597, now seen corresponding path program 1249 times [2022-03-15 15:37:31,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:31,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389629360] [2022-03-15 15:37:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:31,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:31,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:31,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:31,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389629360] [2022-03-15 15:37:31,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389629360] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:31,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:31,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:31,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849256035] [2022-03-15 15:37:31,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:31,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:31,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:31,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:31,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:31,516 INFO L87 Difference]: Start difference. First operand 5081 states and 24149 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:31,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:31,690 INFO L93 Difference]: Finished difference Result 10482 states and 46943 transitions. [2022-03-15 15:37:31,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:31,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:31,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:31,724 INFO L225 Difference]: With dead ends: 10482 [2022-03-15 15:37:31,725 INFO L226 Difference]: Without dead ends: 10067 [2022-03-15 15:37:31,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:31,725 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 149 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:31,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 236 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:31,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10067 states. [2022-03-15 15:37:31,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10067 to 5165. [2022-03-15 15:37:31,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.747676219984508) internal successors, (24517), 5164 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:31,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24517 transitions. [2022-03-15 15:37:31,875 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24517 transitions. Word has length 29 [2022-03-15 15:37:31,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:31,875 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24517 transitions. [2022-03-15 15:37:31,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:31,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24517 transitions. [2022-03-15 15:37:31,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:31,886 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:31,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:31,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1253 [2022-03-15 15:37:31,886 INFO L402 AbstractCegarLoop]: === Iteration 1255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:31,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:31,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1480086587, now seen corresponding path program 1250 times [2022-03-15 15:37:31,886 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:31,886 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123877454] [2022-03-15 15:37:31,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:31,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:31,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:31,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:31,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123877454] [2022-03-15 15:37:31,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123877454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:31,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:31,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:31,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372806985] [2022-03-15 15:37:31,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:31,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:31,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:31,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:31,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:31,999 INFO L87 Difference]: Start difference. First operand 5165 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:32,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:32,170 INFO L93 Difference]: Finished difference Result 10544 states and 47164 transitions. [2022-03-15 15:37:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:32,170 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:32,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:32,206 INFO L225 Difference]: With dead ends: 10544 [2022-03-15 15:37:32,206 INFO L226 Difference]: Without dead ends: 10019 [2022-03-15 15:37:32,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:32,206 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 156 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:32,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 245 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:32,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10019 states. [2022-03-15 15:37:32,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10019 to 5117. [2022-03-15 15:37:32,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.75312744331509) internal successors, (24317), 5116 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24317 transitions. [2022-03-15 15:37:32,360 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24317 transitions. Word has length 29 [2022-03-15 15:37:32,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:32,360 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24317 transitions. [2022-03-15 15:37:32,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:32,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24317 transitions. [2022-03-15 15:37:32,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:32,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:32,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:32,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1254 [2022-03-15 15:37:32,371 INFO L402 AbstractCegarLoop]: === Iteration 1256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:32,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:32,371 INFO L85 PathProgramCache]: Analyzing trace with hash -616403101, now seen corresponding path program 1251 times [2022-03-15 15:37:32,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:32,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86453456] [2022-03-15 15:37:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:32,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:32,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:32,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86453456] [2022-03-15 15:37:32,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86453456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:32,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:32,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:32,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085141000] [2022-03-15 15:37:32,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:32,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:32,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:32,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:32,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:32,480 INFO L87 Difference]: Start difference. First operand 5117 states and 24317 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:32,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:32,640 INFO L93 Difference]: Finished difference Result 10480 states and 46914 transitions. [2022-03-15 15:37:32,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:32,640 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:32,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:32,673 INFO L225 Difference]: With dead ends: 10480 [2022-03-15 15:37:32,673 INFO L226 Difference]: Without dead ends: 10065 [2022-03-15 15:37:32,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:32,674 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 164 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:32,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 210 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:32,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10065 states. [2022-03-15 15:37:32,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10065 to 5165. [2022-03-15 15:37:32,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.7430286599535245) internal successors, (24493), 5164 states have internal predecessors, (24493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:32,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24493 transitions. [2022-03-15 15:37:32,828 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24493 transitions. Word has length 29 [2022-03-15 15:37:32,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:32,828 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24493 transitions. [2022-03-15 15:37:32,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:32,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24493 transitions. [2022-03-15 15:37:32,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:32,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:32,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:32,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1255 [2022-03-15 15:37:32,839 INFO L402 AbstractCegarLoop]: === Iteration 1257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:32,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:32,839 INFO L85 PathProgramCache]: Analyzing trace with hash -74213661, now seen corresponding path program 1252 times [2022-03-15 15:37:32,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:32,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800694281] [2022-03-15 15:37:32,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:32,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:32,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:32,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:32,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800694281] [2022-03-15 15:37:32,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800694281] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:32,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:32,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:32,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802487075] [2022-03-15 15:37:32,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:32,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:32,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:32,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:32,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:32,968 INFO L87 Difference]: Start difference. First operand 5165 states and 24493 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:33,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:33,137 INFO L93 Difference]: Finished difference Result 10540 states and 47130 transitions. [2022-03-15 15:37:33,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:33,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:33,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:33,169 INFO L225 Difference]: With dead ends: 10540 [2022-03-15 15:37:33,169 INFO L226 Difference]: Without dead ends: 10017 [2022-03-15 15:37:33,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:33,169 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 171 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:33,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 202 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:33,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10017 states. [2022-03-15 15:37:33,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10017 to 5117. [2022-03-15 15:37:33,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.748436278342455) internal successors, (24293), 5116 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:33,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24293 transitions. [2022-03-15 15:37:33,322 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24293 transitions. Word has length 29 [2022-03-15 15:37:33,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:33,322 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24293 transitions. [2022-03-15 15:37:33,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:33,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24293 transitions. [2022-03-15 15:37:33,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:33,332 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:33,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:33,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1256 [2022-03-15 15:37:33,333 INFO L402 AbstractCegarLoop]: === Iteration 1258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:33,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:33,333 INFO L85 PathProgramCache]: Analyzing trace with hash -117126459, now seen corresponding path program 1253 times [2022-03-15 15:37:33,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:33,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100197162] [2022-03-15 15:37:33,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:33,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:33,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:33,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:33,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100197162] [2022-03-15 15:37:33,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100197162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:33,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:33,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:33,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518003301] [2022-03-15 15:37:33,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:33,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:33,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:33,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:33,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:33,474 INFO L87 Difference]: Start difference. First operand 5117 states and 24293 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:33,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:33,663 INFO L93 Difference]: Finished difference Result 10634 states and 47575 transitions. [2022-03-15 15:37:33,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:33,663 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:33,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:33,696 INFO L225 Difference]: With dead ends: 10634 [2022-03-15 15:37:33,696 INFO L226 Difference]: Without dead ends: 10157 [2022-03-15 15:37:33,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:33,697 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 157 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:33,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 222 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:33,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10157 states. [2022-03-15 15:37:33,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10157 to 5195. [2022-03-15 15:37:33,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.7335386984982675) internal successors, (24586), 5194 states have internal predecessors, (24586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:33,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24586 transitions. [2022-03-15 15:37:33,851 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24586 transitions. Word has length 29 [2022-03-15 15:37:33,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:33,851 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24586 transitions. [2022-03-15 15:37:33,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:33,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24586 transitions. [2022-03-15 15:37:33,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:33,862 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:33,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:33,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1257 [2022-03-15 15:37:33,862 INFO L402 AbstractCegarLoop]: === Iteration 1259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:33,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:33,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1509271005, now seen corresponding path program 1254 times [2022-03-15 15:37:33,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:33,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282779336] [2022-03-15 15:37:33,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:33,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:33,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:33,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:33,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282779336] [2022-03-15 15:37:33,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282779336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:33,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:33,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:33,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620125636] [2022-03-15 15:37:33,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:33,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:33,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:33,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:33,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:33,981 INFO L87 Difference]: Start difference. First operand 5195 states and 24586 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:34,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:34,164 INFO L93 Difference]: Finished difference Result 10632 states and 47492 transitions. [2022-03-15 15:37:34,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:34,165 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:34,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:34,198 INFO L225 Difference]: With dead ends: 10632 [2022-03-15 15:37:34,198 INFO L226 Difference]: Without dead ends: 10055 [2022-03-15 15:37:34,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:34,199 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 150 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:34,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 222 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:34,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10055 states. [2022-03-15 15:37:34,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10055 to 5093. [2022-03-15 15:37:34,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.753534956794972) internal successors, (24205), 5092 states have internal predecessors, (24205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:34,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24205 transitions. [2022-03-15 15:37:34,359 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24205 transitions. Word has length 29 [2022-03-15 15:37:34,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:34,359 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24205 transitions. [2022-03-15 15:37:34,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:34,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24205 transitions. [2022-03-15 15:37:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:34,370 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:34,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:34,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1258 [2022-03-15 15:37:34,370 INFO L402 AbstractCegarLoop]: === Iteration 1260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:34,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:34,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1224402879, now seen corresponding path program 1255 times [2022-03-15 15:37:34,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:34,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434520117] [2022-03-15 15:37:34,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:34,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:34,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:34,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:34,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434520117] [2022-03-15 15:37:34,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434520117] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:34,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:34,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:34,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117451414] [2022-03-15 15:37:34,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:34,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:34,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:34,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:34,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:34,513 INFO L87 Difference]: Start difference. First operand 5093 states and 24205 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:34,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:34,702 INFO L93 Difference]: Finished difference Result 10416 states and 46644 transitions. [2022-03-15 15:37:34,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:34,702 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:34,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:34,734 INFO L225 Difference]: With dead ends: 10416 [2022-03-15 15:37:34,735 INFO L226 Difference]: Without dead ends: 10001 [2022-03-15 15:37:34,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:34,735 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 163 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:34,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 216 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:34,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10001 states. [2022-03-15 15:37:34,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10001 to 5165. [2022-03-15 15:37:34,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.745352439969016) internal successors, (24505), 5164 states have internal predecessors, (24505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:34,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24505 transitions. [2022-03-15 15:37:34,889 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24505 transitions. Word has length 29 [2022-03-15 15:37:34,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:34,889 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24505 transitions. [2022-03-15 15:37:34,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:34,889 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24505 transitions. [2022-03-15 15:37:34,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:34,900 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:34,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:34,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1259 [2022-03-15 15:37:34,900 INFO L402 AbstractCegarLoop]: === Iteration 1261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:34,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:34,900 INFO L85 PathProgramCache]: Analyzing trace with hash -995115869, now seen corresponding path program 1256 times [2022-03-15 15:37:34,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:34,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934224720] [2022-03-15 15:37:34,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:34,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:35,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:35,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:35,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934224720] [2022-03-15 15:37:35,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934224720] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:35,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:35,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:35,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739812903] [2022-03-15 15:37:35,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:35,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:35,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:35,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:35,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:35,046 INFO L87 Difference]: Start difference. First operand 5165 states and 24505 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:35,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:35,239 INFO L93 Difference]: Finished difference Result 10478 states and 46865 transitions. [2022-03-15 15:37:35,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:35,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:35,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:35,271 INFO L225 Difference]: With dead ends: 10478 [2022-03-15 15:37:35,271 INFO L226 Difference]: Without dead ends: 9953 [2022-03-15 15:37:35,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:35,271 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 163 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:35,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 204 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:35,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9953 states. [2022-03-15 15:37:35,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9953 to 5117. [2022-03-15 15:37:35,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.750781860828773) internal successors, (24305), 5116 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:35,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24305 transitions. [2022-03-15 15:37:35,410 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24305 transitions. Word has length 29 [2022-03-15 15:37:35,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:35,410 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24305 transitions. [2022-03-15 15:37:35,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:35,411 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24305 transitions. [2022-03-15 15:37:35,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:35,421 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:35,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:35,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1260 [2022-03-15 15:37:35,421 INFO L402 AbstractCegarLoop]: === Iteration 1262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:35,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:35,422 INFO L85 PathProgramCache]: Analyzing trace with hash -290574493, now seen corresponding path program 1257 times [2022-03-15 15:37:35,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:35,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073036028] [2022-03-15 15:37:35,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:35,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:35,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:35,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:35,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073036028] [2022-03-15 15:37:35,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073036028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:35,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:35,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:35,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57648777] [2022-03-15 15:37:35,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:35,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:35,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:35,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:35,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:35,565 INFO L87 Difference]: Start difference. First operand 5117 states and 24305 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:35,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:35,766 INFO L93 Difference]: Finished difference Result 10306 states and 46175 transitions. [2022-03-15 15:37:35,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:35,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:35,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:35,798 INFO L225 Difference]: With dead ends: 10306 [2022-03-15 15:37:35,798 INFO L226 Difference]: Without dead ends: 9891 [2022-03-15 15:37:35,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:35,799 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 170 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:35,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 205 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:35,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9891 states. [2022-03-15 15:37:35,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9891 to 5165. [2022-03-15 15:37:35,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.740704879938033) internal successors, (24481), 5164 states have internal predecessors, (24481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:35,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24481 transitions. [2022-03-15 15:37:35,944 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24481 transitions. Word has length 29 [2022-03-15 15:37:35,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:35,944 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24481 transitions. [2022-03-15 15:37:35,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:35,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24481 transitions. [2022-03-15 15:37:35,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:35,955 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:35,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:35,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1261 [2022-03-15 15:37:35,955 INFO L402 AbstractCegarLoop]: === Iteration 1263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:35,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:35,955 INFO L85 PathProgramCache]: Analyzing trace with hash 776672995, now seen corresponding path program 1258 times [2022-03-15 15:37:35,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:35,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568685024] [2022-03-15 15:37:35,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:35,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:36,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:36,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:36,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568685024] [2022-03-15 15:37:36,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568685024] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:36,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:36,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:36,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24812319] [2022-03-15 15:37:36,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:36,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:36,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:36,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:36,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:36,115 INFO L87 Difference]: Start difference. First operand 5165 states and 24481 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:36,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:36,309 INFO L93 Difference]: Finished difference Result 10034 states and 45166 transitions. [2022-03-15 15:37:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:36,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:36,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:36,340 INFO L225 Difference]: With dead ends: 10034 [2022-03-15 15:37:36,340 INFO L226 Difference]: Without dead ends: 9523 [2022-03-15 15:37:36,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:36,341 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:36,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 205 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:36,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states. [2022-03-15 15:37:36,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 5117. [2022-03-15 15:37:36,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.746090695856138) internal successors, (24281), 5116 states have internal predecessors, (24281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:36,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24281 transitions. [2022-03-15 15:37:36,485 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24281 transitions. Word has length 29 [2022-03-15 15:37:36,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:36,486 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24281 transitions. [2022-03-15 15:37:36,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:36,486 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24281 transitions. [2022-03-15 15:37:36,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:36,496 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:36,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:36,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1262 [2022-03-15 15:37:36,496 INFO L402 AbstractCegarLoop]: === Iteration 1264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:36,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:36,497 INFO L85 PathProgramCache]: Analyzing trace with hash -610637115, now seen corresponding path program 1259 times [2022-03-15 15:37:36,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:36,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455749435] [2022-03-15 15:37:36,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:36,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:36,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:36,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:36,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455749435] [2022-03-15 15:37:36,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455749435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:36,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:36,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:36,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327893129] [2022-03-15 15:37:36,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:36,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:36,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:36,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:36,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:36,623 INFO L87 Difference]: Start difference. First operand 5117 states and 24281 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:36,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:36,796 INFO L93 Difference]: Finished difference Result 10392 states and 46544 transitions. [2022-03-15 15:37:36,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:36,797 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:36,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:36,831 INFO L225 Difference]: With dead ends: 10392 [2022-03-15 15:37:36,831 INFO L226 Difference]: Without dead ends: 9915 [2022-03-15 15:37:36,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:36,831 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 193 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:36,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 188 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:36,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9915 states. [2022-03-15 15:37:36,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9915 to 5189. [2022-03-15 15:37:36,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.733423284502699) internal successors, (24557), 5188 states have internal predecessors, (24557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:36,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24557 transitions. [2022-03-15 15:37:36,984 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24557 transitions. Word has length 29 [2022-03-15 15:37:36,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:36,984 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24557 transitions. [2022-03-15 15:37:36,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24557 transitions. [2022-03-15 15:37:36,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:36,994 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:36,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:36,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1263 [2022-03-15 15:37:36,995 INFO L402 AbstractCegarLoop]: === Iteration 1265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:36,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:36,995 INFO L85 PathProgramCache]: Analyzing trace with hash -700396765, now seen corresponding path program 1260 times [2022-03-15 15:37:36,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:36,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415953052] [2022-03-15 15:37:36,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:36,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:37,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:37,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415953052] [2022-03-15 15:37:37,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415953052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:37,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:37,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:37,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423578192] [2022-03-15 15:37:37,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:37,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:37,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:37,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:37,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:37,132 INFO L87 Difference]: Start difference. First operand 5189 states and 24557 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:37,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:37,307 INFO L93 Difference]: Finished difference Result 10058 states and 45242 transitions. [2022-03-15 15:37:37,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:37,307 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:37,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:37,344 INFO L225 Difference]: With dead ends: 10058 [2022-03-15 15:37:37,344 INFO L226 Difference]: Without dead ends: 9499 [2022-03-15 15:37:37,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:37,344 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 142 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:37,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 222 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:37,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9499 states. [2022-03-15 15:37:37,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9499 to 5093. [2022-03-15 15:37:37,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.751178318931657) internal successors, (24193), 5092 states have internal predecessors, (24193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:37,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24193 transitions. [2022-03-15 15:37:37,558 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24193 transitions. Word has length 29 [2022-03-15 15:37:37,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:37,558 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24193 transitions. [2022-03-15 15:37:37,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:37,558 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24193 transitions. [2022-03-15 15:37:37,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:37,569 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:37,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:37,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1264 [2022-03-15 15:37:37,569 INFO L402 AbstractCegarLoop]: === Iteration 1266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:37,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:37,570 INFO L85 PathProgramCache]: Analyzing trace with hash -806897821, now seen corresponding path program 1261 times [2022-03-15 15:37:37,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:37,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454573143] [2022-03-15 15:37:37,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:37,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:37,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:37,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454573143] [2022-03-15 15:37:37,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454573143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:37,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:37,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:37,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698996612] [2022-03-15 15:37:37,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:37,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:37,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:37,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:37,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:37,669 INFO L87 Difference]: Start difference. First operand 5093 states and 24193 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:37,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:37,836 INFO L93 Difference]: Finished difference Result 10412 states and 46622 transitions. [2022-03-15 15:37:37,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:37,836 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:37,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:37,869 INFO L225 Difference]: With dead ends: 10412 [2022-03-15 15:37:37,869 INFO L226 Difference]: Without dead ends: 9997 [2022-03-15 15:37:37,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:37,869 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 153 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:37,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 247 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:37,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9997 states. [2022-03-15 15:37:37,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9997 to 5165. [2022-03-15 15:37:38,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.7430286599535245) internal successors, (24493), 5164 states have internal predecessors, (24493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:38,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24493 transitions. [2022-03-15 15:37:38,025 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24493 transitions. Word has length 29 [2022-03-15 15:37:38,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:38,025 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24493 transitions. [2022-03-15 15:37:38,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:38,026 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24493 transitions. [2022-03-15 15:37:38,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:38,036 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:38,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:38,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1265 [2022-03-15 15:37:38,036 INFO L402 AbstractCegarLoop]: === Iteration 1267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:38,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:38,037 INFO L85 PathProgramCache]: Analyzing trace with hash -264708381, now seen corresponding path program 1262 times [2022-03-15 15:37:38,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:38,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736820105] [2022-03-15 15:37:38,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:38,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:38,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:38,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:38,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736820105] [2022-03-15 15:37:38,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736820105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:38,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:38,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:38,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422118958] [2022-03-15 15:37:38,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:38,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:38,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:38,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:38,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:38,140 INFO L87 Difference]: Start difference. First operand 5165 states and 24493 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:38,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:38,309 INFO L93 Difference]: Finished difference Result 10472 states and 46838 transitions. [2022-03-15 15:37:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:38,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:38,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:38,343 INFO L225 Difference]: With dead ends: 10472 [2022-03-15 15:37:38,343 INFO L226 Difference]: Without dead ends: 9949 [2022-03-15 15:37:38,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:38,343 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 166 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:38,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 218 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:38,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9949 states. [2022-03-15 15:37:38,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9949 to 5117. [2022-03-15 15:37:38,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.748436278342455) internal successors, (24293), 5116 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:38,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24293 transitions. [2022-03-15 15:37:38,499 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24293 transitions. Word has length 29 [2022-03-15 15:37:38,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:38,499 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24293 transitions. [2022-03-15 15:37:38,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:38,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24293 transitions. [2022-03-15 15:37:38,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:38,512 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:38,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:38,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1266 [2022-03-15 15:37:38,512 INFO L402 AbstractCegarLoop]: === Iteration 1268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:38,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:38,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1455056833, now seen corresponding path program 1263 times [2022-03-15 15:37:38,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:38,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302702997] [2022-03-15 15:37:38,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:38,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:38,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:38,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:38,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302702997] [2022-03-15 15:37:38,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302702997] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:38,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:38,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:38,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433029943] [2022-03-15 15:37:38,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:38,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:38,705 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:38,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:38,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:38,706 INFO L87 Difference]: Start difference. First operand 5117 states and 24293 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:38,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:38,919 INFO L93 Difference]: Finished difference Result 10304 states and 46158 transitions. [2022-03-15 15:37:38,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:38,919 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:38,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:38,950 INFO L225 Difference]: With dead ends: 10304 [2022-03-15 15:37:38,951 INFO L226 Difference]: Without dead ends: 9889 [2022-03-15 15:37:38,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:38,951 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 164 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:38,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 221 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:38,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9889 states. [2022-03-15 15:37:39,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9889 to 5165. [2022-03-15 15:37:39,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.738381099922541) internal successors, (24469), 5164 states have internal predecessors, (24469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:39,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24469 transitions. [2022-03-15 15:37:39,088 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24469 transitions. Word has length 29 [2022-03-15 15:37:39,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:39,088 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24469 transitions. [2022-03-15 15:37:39,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:39,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24469 transitions. [2022-03-15 15:37:39,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:39,098 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:39,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:39,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1267 [2022-03-15 15:37:39,099 INFO L402 AbstractCegarLoop]: === Iteration 1269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:39,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:39,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1145667869, now seen corresponding path program 1264 times [2022-03-15 15:37:39,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:39,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765615592] [2022-03-15 15:37:39,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:39,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:39,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:39,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:39,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765615592] [2022-03-15 15:37:39,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765615592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:39,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:39,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:39,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520931407] [2022-03-15 15:37:39,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:39,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:39,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:39,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:39,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:39,264 INFO L87 Difference]: Start difference. First operand 5165 states and 24469 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:39,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:39,473 INFO L93 Difference]: Finished difference Result 10032 states and 45149 transitions. [2022-03-15 15:37:39,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:39,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:39,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:39,503 INFO L225 Difference]: With dead ends: 10032 [2022-03-15 15:37:39,503 INFO L226 Difference]: Without dead ends: 9521 [2022-03-15 15:37:39,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:39,503 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 140 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:39,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 223 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:39,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9521 states. [2022-03-15 15:37:39,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9521 to 5117. [2022-03-15 15:37:39,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.74374511336982) internal successors, (24269), 5116 states have internal predecessors, (24269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:39,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24269 transitions. [2022-03-15 15:37:39,639 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24269 transitions. Word has length 29 [2022-03-15 15:37:39,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:39,639 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24269 transitions. [2022-03-15 15:37:39,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:39,639 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24269 transitions. [2022-03-15 15:37:39,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:39,650 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:39,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:39,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1268 [2022-03-15 15:37:39,650 INFO L402 AbstractCegarLoop]: === Iteration 1270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:39,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:39,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1137056157, now seen corresponding path program 1265 times [2022-03-15 15:37:39,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:39,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401692601] [2022-03-15 15:37:39,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:39,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:39,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:39,814 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:39,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401692601] [2022-03-15 15:37:39,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401692601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:39,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:39,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:39,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431966195] [2022-03-15 15:37:39,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:39,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:39,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:39,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:39,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:39,814 INFO L87 Difference]: Start difference. First operand 5117 states and 24269 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:40,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:40,020 INFO L93 Difference]: Finished difference Result 10388 states and 46522 transitions. [2022-03-15 15:37:40,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:40,020 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:40,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:40,052 INFO L225 Difference]: With dead ends: 10388 [2022-03-15 15:37:40,052 INFO L226 Difference]: Without dead ends: 9913 [2022-03-15 15:37:40,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:40,053 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 143 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:40,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 219 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:40,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9913 states. [2022-03-15 15:37:40,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9913 to 5189. [2022-03-15 15:37:40,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.7311102544333075) internal successors, (24545), 5188 states have internal predecessors, (24545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:40,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24545 transitions. [2022-03-15 15:37:40,188 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24545 transitions. Word has length 29 [2022-03-15 15:37:40,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:40,188 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24545 transitions. [2022-03-15 15:37:40,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:40,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24545 transitions. [2022-03-15 15:37:40,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:40,197 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:40,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:40,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1269 [2022-03-15 15:37:40,198 INFO L402 AbstractCegarLoop]: === Iteration 1271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:40,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:40,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1765766593, now seen corresponding path program 1266 times [2022-03-15 15:37:40,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:40,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903879249] [2022-03-15 15:37:40,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:40,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:40,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:40,302 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:40,302 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903879249] [2022-03-15 15:37:40,302 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903879249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:40,302 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:40,302 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:40,302 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66398914] [2022-03-15 15:37:40,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:40,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:40,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:40,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:40,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:40,303 INFO L87 Difference]: Start difference. First operand 5189 states and 24545 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:40,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:40,461 INFO L93 Difference]: Finished difference Result 10056 states and 45225 transitions. [2022-03-15 15:37:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:40,461 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:40,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:40,489 INFO L225 Difference]: With dead ends: 10056 [2022-03-15 15:37:40,489 INFO L226 Difference]: Without dead ends: 9497 [2022-03-15 15:37:40,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:40,490 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 142 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:40,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 236 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:40,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9497 states. [2022-03-15 15:37:40,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9497 to 5093. [2022-03-15 15:37:40,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.748821681068343) internal successors, (24181), 5092 states have internal predecessors, (24181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:40,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24181 transitions. [2022-03-15 15:37:40,623 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24181 transitions. Word has length 29 [2022-03-15 15:37:40,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:40,624 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24181 transitions. [2022-03-15 15:37:40,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:40,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24181 transitions. [2022-03-15 15:37:40,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:40,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:40,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:40,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1270 [2022-03-15 15:37:40,634 INFO L402 AbstractCegarLoop]: === Iteration 1272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:40,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:40,634 INFO L85 PathProgramCache]: Analyzing trace with hash 48359877, now seen corresponding path program 1267 times [2022-03-15 15:37:40,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:40,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202414600] [2022-03-15 15:37:40,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:40,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:40,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:40,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:40,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202414600] [2022-03-15 15:37:40,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202414600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:40,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:40,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:40,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977377480] [2022-03-15 15:37:40,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:40,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:40,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:40,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:40,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:40,739 INFO L87 Difference]: Start difference. First operand 5093 states and 24181 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:40,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:40,892 INFO L93 Difference]: Finished difference Result 10664 states and 47756 transitions. [2022-03-15 15:37:40,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:40,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:40,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:40,923 INFO L225 Difference]: With dead ends: 10664 [2022-03-15 15:37:40,923 INFO L226 Difference]: Without dead ends: 10187 [2022-03-15 15:37:40,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:40,923 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 156 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:40,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 212 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:40,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10187 states. [2022-03-15 15:37:41,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10187 to 5207. [2022-03-15 15:37:41,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.737994621590473) internal successors, (24666), 5206 states have internal predecessors, (24666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:41,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24666 transitions. [2022-03-15 15:37:41,055 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24666 transitions. Word has length 29 [2022-03-15 15:37:41,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:41,055 INFO L470 AbstractCegarLoop]: Abstraction has 5207 states and 24666 transitions. [2022-03-15 15:37:41,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:41,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24666 transitions. [2022-03-15 15:37:41,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:41,065 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:41,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:41,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1271 [2022-03-15 15:37:41,065 INFO L402 AbstractCegarLoop]: === Iteration 1273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:41,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:41,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1343784669, now seen corresponding path program 1268 times [2022-03-15 15:37:41,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:41,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145314128] [2022-03-15 15:37:41,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:41,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:41,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:41,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145314128] [2022-03-15 15:37:41,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145314128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:41,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:41,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:41,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117277903] [2022-03-15 15:37:41,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:41,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:41,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:41,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:41,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:41,175 INFO L87 Difference]: Start difference. First operand 5207 states and 24666 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:41,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:41,325 INFO L93 Difference]: Finished difference Result 10662 states and 47673 transitions. [2022-03-15 15:37:41,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:41,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:41,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:41,354 INFO L225 Difference]: With dead ends: 10662 [2022-03-15 15:37:41,355 INFO L226 Difference]: Without dead ends: 10109 [2022-03-15 15:37:41,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:41,355 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 163 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:41,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 203 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:41,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10109 states. [2022-03-15 15:37:41,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10109 to 5129. [2022-03-15 15:37:41,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.745904836193448) internal successors, (24337), 5128 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:41,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24337 transitions. [2022-03-15 15:37:41,485 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24337 transitions. Word has length 29 [2022-03-15 15:37:41,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:41,485 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24337 transitions. [2022-03-15 15:37:41,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:41,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24337 transitions. [2022-03-15 15:37:41,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:41,494 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:41,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:41,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1272 [2022-03-15 15:37:41,495 INFO L402 AbstractCegarLoop]: === Iteration 1274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:41,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:41,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2067719773, now seen corresponding path program 1269 times [2022-03-15 15:37:41,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:41,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045664319] [2022-03-15 15:37:41,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:41,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:41,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:41,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045664319] [2022-03-15 15:37:41,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045664319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:41,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:41,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:41,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884668141] [2022-03-15 15:37:41,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:41,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:41,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:41,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:41,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:41,603 INFO L87 Difference]: Start difference. First operand 5129 states and 24337 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:41,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:41,774 INFO L93 Difference]: Finished difference Result 10488 states and 46988 transitions. [2022-03-15 15:37:41,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:41,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:41,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:41,803 INFO L225 Difference]: With dead ends: 10488 [2022-03-15 15:37:41,803 INFO L226 Difference]: Without dead ends: 10011 [2022-03-15 15:37:41,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:41,804 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 146 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:41,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 238 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:41,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10011 states. [2022-03-15 15:37:41,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10011 to 5201. [2022-03-15 15:37:41,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.73326923076923) internal successors, (24613), 5200 states have internal predecessors, (24613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:41,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24613 transitions. [2022-03-15 15:37:41,933 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24613 transitions. Word has length 29 [2022-03-15 15:37:41,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:41,933 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24613 transitions. [2022-03-15 15:37:41,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:41,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24613 transitions. [2022-03-15 15:37:41,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:41,943 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:41,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:41,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1273 [2022-03-15 15:37:41,943 INFO L402 AbstractCegarLoop]: === Iteration 1275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:41,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:41,943 INFO L85 PathProgramCache]: Analyzing trace with hash -860739037, now seen corresponding path program 1270 times [2022-03-15 15:37:41,943 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:41,943 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705637913] [2022-03-15 15:37:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:41,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:42,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:42,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:42,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705637913] [2022-03-15 15:37:42,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705637913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:42,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:42,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:42,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964050488] [2022-03-15 15:37:42,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:42,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:42,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:42,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:42,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:42,055 INFO L87 Difference]: Start difference. First operand 5201 states and 24613 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:42,211 INFO L93 Difference]: Finished difference Result 10154 states and 45686 transitions. [2022-03-15 15:37:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:42,211 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:42,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:42,239 INFO L225 Difference]: With dead ends: 10154 [2022-03-15 15:37:42,240 INFO L226 Difference]: Without dead ends: 9619 [2022-03-15 15:37:42,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:42,240 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 162 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:42,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 203 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:42,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9619 states. [2022-03-15 15:37:42,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9619 to 5129. [2022-03-15 15:37:42,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.738884555382215) internal successors, (24301), 5128 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:42,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24301 transitions. [2022-03-15 15:37:42,365 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24301 transitions. Word has length 29 [2022-03-15 15:37:42,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:42,365 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24301 transitions. [2022-03-15 15:37:42,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:42,365 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24301 transitions. [2022-03-15 15:37:42,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:42,374 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:42,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:42,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1274 [2022-03-15 15:37:42,374 INFO L402 AbstractCegarLoop]: === Iteration 1276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:42,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:42,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1703462399, now seen corresponding path program 1271 times [2022-03-15 15:37:42,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:42,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001280029] [2022-03-15 15:37:42,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:42,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:42,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:42,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001280029] [2022-03-15 15:37:42,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001280029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:42,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:42,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:42,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116562044] [2022-03-15 15:37:42,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:42,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:42,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:42,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:42,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:42,526 INFO L87 Difference]: Start difference. First operand 5129 states and 24301 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:42,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:42,729 INFO L93 Difference]: Finished difference Result 10486 states and 46947 transitions. [2022-03-15 15:37:42,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:42,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:42,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:42,763 INFO L225 Difference]: With dead ends: 10486 [2022-03-15 15:37:42,763 INFO L226 Difference]: Without dead ends: 10011 [2022-03-15 15:37:42,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:42,763 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 156 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:42,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 227 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:42,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10011 states. [2022-03-15 15:37:42,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10011 to 5201. [2022-03-15 15:37:42,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.726346153846154) internal successors, (24577), 5200 states have internal predecessors, (24577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:42,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24577 transitions. [2022-03-15 15:37:42,918 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24577 transitions. Word has length 29 [2022-03-15 15:37:42,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:42,918 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24577 transitions. [2022-03-15 15:37:42,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:42,919 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24577 transitions. [2022-03-15 15:37:42,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:42,929 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:42,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:42,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1275 [2022-03-15 15:37:42,929 INFO L402 AbstractCegarLoop]: === Iteration 1277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:42,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:42,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1910270365, now seen corresponding path program 1272 times [2022-03-15 15:37:42,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:42,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832683715] [2022-03-15 15:37:42,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:42,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:43,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:43,072 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:43,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832683715] [2022-03-15 15:37:43,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832683715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:43,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:43,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:43,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305092957] [2022-03-15 15:37:43,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:43,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:43,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:43,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:43,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:43,072 INFO L87 Difference]: Start difference. First operand 5201 states and 24577 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:43,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:43,266 INFO L93 Difference]: Finished difference Result 10154 states and 45650 transitions. [2022-03-15 15:37:43,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:43,267 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:43,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:43,305 INFO L225 Difference]: With dead ends: 10154 [2022-03-15 15:37:43,306 INFO L226 Difference]: Without dead ends: 9571 [2022-03-15 15:37:43,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:43,306 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 140 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:43,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 215 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:43,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9571 states. [2022-03-15 15:37:43,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9571 to 5081. [2022-03-15 15:37:43,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.752952755905512) internal successors, (24145), 5080 states have internal predecessors, (24145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:43,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24145 transitions. [2022-03-15 15:37:43,462 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24145 transitions. Word has length 29 [2022-03-15 15:37:43,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:43,462 INFO L470 AbstractCegarLoop]: Abstraction has 5081 states and 24145 transitions. [2022-03-15 15:37:43,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:43,462 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24145 transitions. [2022-03-15 15:37:43,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:43,474 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:43,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:43,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1276 [2022-03-15 15:37:43,474 INFO L402 AbstractCegarLoop]: === Iteration 1278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:43,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:43,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1695611589, now seen corresponding path program 1273 times [2022-03-15 15:37:43,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:43,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377028550] [2022-03-15 15:37:43,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:43,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:43,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:43,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:43,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377028550] [2022-03-15 15:37:43,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377028550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:43,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:43,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:43,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783033167] [2022-03-15 15:37:43,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:43,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:43,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:43,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:43,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:43,709 INFO L87 Difference]: Start difference. First operand 5081 states and 24145 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:43,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:43,923 INFO L93 Difference]: Finished difference Result 10132 states and 45294 transitions. [2022-03-15 15:37:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:43,923 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:43,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:43,954 INFO L225 Difference]: With dead ends: 10132 [2022-03-15 15:37:43,955 INFO L226 Difference]: Without dead ends: 9717 [2022-03-15 15:37:43,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:43,955 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 158 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:43,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 219 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:43,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9717 states. [2022-03-15 15:37:44,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9717 to 5137. [2022-03-15 15:37:44,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.747079439252336) internal successors, (24381), 5136 states have internal predecessors, (24381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:44,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24381 transitions. [2022-03-15 15:37:44,102 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24381 transitions. Word has length 29 [2022-03-15 15:37:44,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:44,102 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24381 transitions. [2022-03-15 15:37:44,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:44,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24381 transitions. [2022-03-15 15:37:44,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:44,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:44,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:44,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1277 [2022-03-15 15:37:44,113 INFO L402 AbstractCegarLoop]: === Iteration 1279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:44,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:44,113 INFO L85 PathProgramCache]: Analyzing trace with hash 881639197, now seen corresponding path program 1274 times [2022-03-15 15:37:44,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:44,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170424888] [2022-03-15 15:37:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:44,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:44,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:44,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:44,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170424888] [2022-03-15 15:37:44,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170424888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:44,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:44,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:44,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120061942] [2022-03-15 15:37:44,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:44,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:44,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:44,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:44,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:44,259 INFO L87 Difference]: Start difference. First operand 5137 states and 24381 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:44,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:44,432 INFO L93 Difference]: Finished difference Result 10132 states and 45262 transitions. [2022-03-15 15:37:44,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:44,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:44,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:44,461 INFO L225 Difference]: With dead ends: 10132 [2022-03-15 15:37:44,461 INFO L226 Difference]: Without dead ends: 9685 [2022-03-15 15:37:44,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:44,462 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 154 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:44,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 227 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:44,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9685 states. [2022-03-15 15:37:44,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9685 to 5105. [2022-03-15 15:37:44,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.751763322884012) internal successors, (24253), 5104 states have internal predecessors, (24253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:44,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24253 transitions. [2022-03-15 15:37:44,586 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24253 transitions. Word has length 29 [2022-03-15 15:37:44,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:44,586 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24253 transitions. [2022-03-15 15:37:44,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24253 transitions. [2022-03-15 15:37:44,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:44,596 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:44,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:44,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1278 [2022-03-15 15:37:44,596 INFO L402 AbstractCegarLoop]: === Iteration 1280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:44,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:44,597 INFO L85 PathProgramCache]: Analyzing trace with hash -327449949, now seen corresponding path program 1275 times [2022-03-15 15:37:44,597 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:44,597 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850565194] [2022-03-15 15:37:44,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:44,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:44,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:44,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:44,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850565194] [2022-03-15 15:37:44,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850565194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:44,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:44,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:44,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064109412] [2022-03-15 15:37:44,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:44,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:44,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:44,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:44,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:44,755 INFO L87 Difference]: Start difference. First operand 5105 states and 24253 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:44,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:44,926 INFO L93 Difference]: Finished difference Result 10208 states and 45622 transitions. [2022-03-15 15:37:44,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:44,926 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:44,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:44,957 INFO L225 Difference]: With dead ends: 10208 [2022-03-15 15:37:44,958 INFO L226 Difference]: Without dead ends: 9793 [2022-03-15 15:37:44,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:44,958 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 174 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:44,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 197 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:44,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2022-03-15 15:37:45,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 5153. [2022-03-15 15:37:45,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.7416537267080745) internal successors, (24429), 5152 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:45,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24429 transitions. [2022-03-15 15:37:45,106 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24429 transitions. Word has length 29 [2022-03-15 15:37:45,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:45,106 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24429 transitions. [2022-03-15 15:37:45,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:45,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24429 transitions. [2022-03-15 15:37:45,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:45,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:45,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:45,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1279 [2022-03-15 15:37:45,117 INFO L402 AbstractCegarLoop]: === Iteration 1281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:45,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:45,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1534792261, now seen corresponding path program 1276 times [2022-03-15 15:37:45,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:45,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502696071] [2022-03-15 15:37:45,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:45,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:45,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:45,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:45,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502696071] [2022-03-15 15:37:45,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502696071] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:45,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:45,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:45,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751330819] [2022-03-15 15:37:45,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:45,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:45,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:45,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:45,244 INFO L87 Difference]: Start difference. First operand 5153 states and 24429 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:45,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:45,401 INFO L93 Difference]: Finished difference Result 10268 states and 45838 transitions. [2022-03-15 15:37:45,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:45,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:45,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:45,433 INFO L225 Difference]: With dead ends: 10268 [2022-03-15 15:37:45,433 INFO L226 Difference]: Without dead ends: 9745 [2022-03-15 15:37:45,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:45,433 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 159 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:45,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 208 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:45,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9745 states. [2022-03-15 15:37:45,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9745 to 5105. [2022-03-15 15:37:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.748628526645768) internal successors, (24237), 5104 states have internal predecessors, (24237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:45,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24237 transitions. [2022-03-15 15:37:45,584 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24237 transitions. Word has length 29 [2022-03-15 15:37:45,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:45,584 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24237 transitions. [2022-03-15 15:37:45,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:45,585 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24237 transitions. [2022-03-15 15:37:45,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:45,595 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:45,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:45,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1280 [2022-03-15 15:37:45,595 INFO L402 AbstractCegarLoop]: === Iteration 1282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:45,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:45,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1287045061, now seen corresponding path program 1277 times [2022-03-15 15:37:45,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:45,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273713676] [2022-03-15 15:37:45,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:45,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:45,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:45,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:45,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273713676] [2022-03-15 15:37:45,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273713676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:45,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:45,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:45,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860723639] [2022-03-15 15:37:45,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:45,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:45,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:45,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:45,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:45,745 INFO L87 Difference]: Start difference. First operand 5105 states and 24237 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:45,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:45,931 INFO L93 Difference]: Finished difference Result 10208 states and 45606 transitions. [2022-03-15 15:37:45,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:45,931 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:45,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:45,961 INFO L225 Difference]: With dead ends: 10208 [2022-03-15 15:37:45,961 INFO L226 Difference]: Without dead ends: 9793 [2022-03-15 15:37:45,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:45,961 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 158 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:45,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 226 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:45,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2022-03-15 15:37:46,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 5153. [2022-03-15 15:37:46,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.738548136645963) internal successors, (24413), 5152 states have internal predecessors, (24413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:46,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24413 transitions. [2022-03-15 15:37:46,087 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24413 transitions. Word has length 29 [2022-03-15 15:37:46,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:46,087 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24413 transitions. [2022-03-15 15:37:46,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:46,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24413 transitions. [2022-03-15 15:37:46,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:46,096 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:46,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:46,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1281 [2022-03-15 15:37:46,096 INFO L402 AbstractCegarLoop]: === Iteration 1283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:46,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:46,097 INFO L85 PathProgramCache]: Analyzing trace with hash -205982435, now seen corresponding path program 1278 times [2022-03-15 15:37:46,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:46,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860006707] [2022-03-15 15:37:46,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:46,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:46,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:46,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:46,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860006707] [2022-03-15 15:37:46,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860006707] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:46,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:46,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:46,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885064752] [2022-03-15 15:37:46,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:46,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:46,233 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:46,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:46,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:46,233 INFO L87 Difference]: Start difference. First operand 5153 states and 24413 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:46,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:46,432 INFO L93 Difference]: Finished difference Result 10268 states and 45822 transitions. [2022-03-15 15:37:46,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:46,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:46,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:46,465 INFO L225 Difference]: With dead ends: 10268 [2022-03-15 15:37:46,465 INFO L226 Difference]: Without dead ends: 9729 [2022-03-15 15:37:46,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:46,466 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 147 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:46,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 228 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:46,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9729 states. [2022-03-15 15:37:46,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9729 to 5089. [2022-03-15 15:37:46,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.752555031446541) internal successors, (24181), 5088 states have internal predecessors, (24181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:46,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24181 transitions. [2022-03-15 15:37:46,599 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24181 transitions. Word has length 29 [2022-03-15 15:37:46,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:46,599 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24181 transitions. [2022-03-15 15:37:46,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:46,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24181 transitions. [2022-03-15 15:37:46,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:46,609 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:46,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:46,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1282 [2022-03-15 15:37:46,609 INFO L402 AbstractCegarLoop]: === Iteration 1284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:46,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:46,610 INFO L85 PathProgramCache]: Analyzing trace with hash -2114384989, now seen corresponding path program 1279 times [2022-03-15 15:37:46,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:46,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073244844] [2022-03-15 15:37:46,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:46,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:46,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:46,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073244844] [2022-03-15 15:37:46,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073244844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:46,750 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:46,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:46,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078059271] [2022-03-15 15:37:46,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:46,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:46,750 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:46,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:46,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:46,751 INFO L87 Difference]: Start difference. First operand 5089 states and 24181 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:46,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:46,960 INFO L93 Difference]: Finished difference Result 10088 states and 45102 transitions. [2022-03-15 15:37:46,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:46,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:46,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:46,993 INFO L225 Difference]: With dead ends: 10088 [2022-03-15 15:37:46,993 INFO L226 Difference]: Without dead ends: 9673 [2022-03-15 15:37:46,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:46,993 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 175 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:46,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 204 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:47,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9673 states. [2022-03-15 15:37:47,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9673 to 5137. [2022-03-15 15:37:47,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.745521806853582) internal successors, (24373), 5136 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:47,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24373 transitions. [2022-03-15 15:37:47,144 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24373 transitions. Word has length 29 [2022-03-15 15:37:47,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:47,144 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24373 transitions. [2022-03-15 15:37:47,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:47,144 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24373 transitions. [2022-03-15 15:37:47,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:47,155 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:47,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:47,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1283 [2022-03-15 15:37:47,155 INFO L402 AbstractCegarLoop]: === Iteration 1285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:47,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:47,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1366609915, now seen corresponding path program 1280 times [2022-03-15 15:37:47,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:47,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2435703] [2022-03-15 15:37:47,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:47,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:47,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:47,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:47,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2435703] [2022-03-15 15:37:47,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2435703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:47,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:47,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:47,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713893868] [2022-03-15 15:37:47,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:47,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:47,339 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:47,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:47,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:47,340 INFO L87 Difference]: Start difference. First operand 5137 states and 24373 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:47,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:47,520 INFO L93 Difference]: Finished difference Result 10088 states and 45070 transitions. [2022-03-15 15:37:47,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:47,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:47,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:47,553 INFO L225 Difference]: With dead ends: 10088 [2022-03-15 15:37:47,553 INFO L226 Difference]: Without dead ends: 9641 [2022-03-15 15:37:47,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:47,554 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 181 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:47,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 199 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:47,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9641 states. [2022-03-15 15:37:47,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9641 to 5105. [2022-03-15 15:37:47,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.75019592476489) internal successors, (24245), 5104 states have internal predecessors, (24245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:47,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24245 transitions. [2022-03-15 15:37:47,703 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24245 transitions. Word has length 29 [2022-03-15 15:37:47,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:47,704 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24245 transitions. [2022-03-15 15:37:47,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:47,704 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24245 transitions. [2022-03-15 15:37:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:47,714 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:47,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:47,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1284 [2022-03-15 15:37:47,715 INFO L402 AbstractCegarLoop]: === Iteration 1286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:47,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:47,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1384493987, now seen corresponding path program 1281 times [2022-03-15 15:37:47,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:47,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398821901] [2022-03-15 15:37:47,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:47,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:47,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:47,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:47,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398821901] [2022-03-15 15:37:47,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398821901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:47,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:47,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:47,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732124520] [2022-03-15 15:37:47,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:47,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:47,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:47,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:47,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:47,873 INFO L87 Difference]: Start difference. First operand 5105 states and 24245 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:48,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:48,076 INFO L93 Difference]: Finished difference Result 10056 states and 44990 transitions. [2022-03-15 15:37:48,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:48,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:48,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:48,106 INFO L225 Difference]: With dead ends: 10056 [2022-03-15 15:37:48,106 INFO L226 Difference]: Without dead ends: 9641 [2022-03-15 15:37:48,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:48,107 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 165 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:48,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 221 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:48,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9641 states. [2022-03-15 15:37:48,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9641 to 5153. [2022-03-15 15:37:48,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.740100931677019) internal successors, (24421), 5152 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:48,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24421 transitions. [2022-03-15 15:37:48,236 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24421 transitions. Word has length 29 [2022-03-15 15:37:48,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:48,236 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24421 transitions. [2022-03-15 15:37:48,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:48,236 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24421 transitions. [2022-03-15 15:37:48,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:48,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:48,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:48,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1285 [2022-03-15 15:37:48,246 INFO L402 AbstractCegarLoop]: === Iteration 1287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:48,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:48,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1909288379, now seen corresponding path program 1282 times [2022-03-15 15:37:48,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:48,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798749799] [2022-03-15 15:37:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:48,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:48,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:48,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:48,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798749799] [2022-03-15 15:37:48,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798749799] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:48,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:48,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:48,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143420835] [2022-03-15 15:37:48,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:48,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:48,409 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:48,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:48,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:48,409 INFO L87 Difference]: Start difference. First operand 5153 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:48,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:48,620 INFO L93 Difference]: Finished difference Result 9784 states and 43981 transitions. [2022-03-15 15:37:48,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:48,620 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:48,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:48,649 INFO L225 Difference]: With dead ends: 9784 [2022-03-15 15:37:48,649 INFO L226 Difference]: Without dead ends: 9273 [2022-03-15 15:37:48,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:48,649 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 143 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:48,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 239 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:48,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9273 states. [2022-03-15 15:37:48,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9273 to 5105. [2022-03-15 15:37:48,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.747061128526646) internal successors, (24229), 5104 states have internal predecessors, (24229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:48,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24229 transitions. [2022-03-15 15:37:48,772 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24229 transitions. Word has length 29 [2022-03-15 15:37:48,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:48,772 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24229 transitions. [2022-03-15 15:37:48,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:48,772 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24229 transitions. [2022-03-15 15:37:48,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:48,782 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:48,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:48,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1286 [2022-03-15 15:37:48,782 INFO L402 AbstractCegarLoop]: === Iteration 1288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:48,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:48,782 INFO L85 PathProgramCache]: Analyzing trace with hash 795185467, now seen corresponding path program 1283 times [2022-03-15 15:37:48,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:48,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754179121] [2022-03-15 15:37:48,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:48,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:48,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:48,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:48,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754179121] [2022-03-15 15:37:48,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754179121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:48,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:48,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:48,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391945136] [2022-03-15 15:37:48,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:48,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:48,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:48,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:48,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:48,956 INFO L87 Difference]: Start difference. First operand 5105 states and 24229 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:49,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:49,150 INFO L93 Difference]: Finished difference Result 10056 states and 44974 transitions. [2022-03-15 15:37:49,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:49,150 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:49,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:49,179 INFO L225 Difference]: With dead ends: 10056 [2022-03-15 15:37:49,180 INFO L226 Difference]: Without dead ends: 9641 [2022-03-15 15:37:49,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:49,180 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 148 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:49,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 243 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9641 states. [2022-03-15 15:37:49,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9641 to 5153. [2022-03-15 15:37:49,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.736995341614906) internal successors, (24405), 5152 states have internal predecessors, (24405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:49,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24405 transitions. [2022-03-15 15:37:49,317 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24405 transitions. Word has length 29 [2022-03-15 15:37:49,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:49,317 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24405 transitions. [2022-03-15 15:37:49,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:49,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24405 transitions. [2022-03-15 15:37:49,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:49,327 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:49,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:49,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1287 [2022-03-15 15:37:49,327 INFO L402 AbstractCegarLoop]: === Iteration 1289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:49,327 INFO L85 PathProgramCache]: Analyzing trace with hash -699493091, now seen corresponding path program 1284 times [2022-03-15 15:37:49,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:49,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224577552] [2022-03-15 15:37:49,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:49,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:49,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:49,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:49,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224577552] [2022-03-15 15:37:49,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224577552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:49,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:49,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:49,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088269822] [2022-03-15 15:37:49,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:49,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:49,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:49,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:49,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:49,446 INFO L87 Difference]: Start difference. First operand 5153 states and 24405 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:49,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:49,608 INFO L93 Difference]: Finished difference Result 9784 states and 43965 transitions. [2022-03-15 15:37:49,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:49,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:49,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:49,637 INFO L225 Difference]: With dead ends: 9784 [2022-03-15 15:37:49,637 INFO L226 Difference]: Without dead ends: 9257 [2022-03-15 15:37:49,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:49,637 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 153 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:49,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 221 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:49,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9257 states. [2022-03-15 15:37:49,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9257 to 5089. [2022-03-15 15:37:49,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.7509827044025155) internal successors, (24173), 5088 states have internal predecessors, (24173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:49,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24173 transitions. [2022-03-15 15:37:49,769 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24173 transitions. Word has length 29 [2022-03-15 15:37:49,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:49,769 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24173 transitions. [2022-03-15 15:37:49,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:49,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24173 transitions. [2022-03-15 15:37:49,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:49,779 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:49,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:49,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1288 [2022-03-15 15:37:49,779 INFO L402 AbstractCegarLoop]: === Iteration 1290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:49,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:49,780 INFO L85 PathProgramCache]: Analyzing trace with hash -815555583, now seen corresponding path program 1285 times [2022-03-15 15:37:49,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:49,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779692296] [2022-03-15 15:37:49,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:49,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:49,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:49,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:49,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779692296] [2022-03-15 15:37:49,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779692296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:49,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:49,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:49,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209119900] [2022-03-15 15:37:49,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:49,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:49,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:49,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:49,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:49,915 INFO L87 Difference]: Start difference. First operand 5089 states and 24173 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:50,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:50,123 INFO L93 Difference]: Finished difference Result 10256 states and 45870 transitions. [2022-03-15 15:37:50,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:50,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:50,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:50,155 INFO L225 Difference]: With dead ends: 10256 [2022-03-15 15:37:50,155 INFO L226 Difference]: Without dead ends: 9841 [2022-03-15 15:37:50,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:50,155 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 181 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:50,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 194 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:50,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9841 states. [2022-03-15 15:37:50,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9841 to 5161. [2022-03-15 15:37:50,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.7428294573643415) internal successors, (24473), 5160 states have internal predecessors, (24473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:50,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24473 transitions. [2022-03-15 15:37:50,311 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24473 transitions. Word has length 29 [2022-03-15 15:37:50,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:50,312 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24473 transitions. [2022-03-15 15:37:50,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:50,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24473 transitions. [2022-03-15 15:37:50,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:50,322 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:50,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:50,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1289 [2022-03-15 15:37:50,323 INFO L402 AbstractCegarLoop]: === Iteration 1291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:50,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:50,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1046686627, now seen corresponding path program 1286 times [2022-03-15 15:37:50,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:50,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783807264] [2022-03-15 15:37:50,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:50,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:50,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:50,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:50,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783807264] [2022-03-15 15:37:50,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783807264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:50,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:50,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:50,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853792725] [2022-03-15 15:37:50,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:50,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:50,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:50,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:50,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:50,480 INFO L87 Difference]: Start difference. First operand 5161 states and 24473 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:50,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:50,685 INFO L93 Difference]: Finished difference Result 10316 states and 46086 transitions. [2022-03-15 15:37:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:50,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:50,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:50,717 INFO L225 Difference]: With dead ends: 10316 [2022-03-15 15:37:50,718 INFO L226 Difference]: Without dead ends: 9793 [2022-03-15 15:37:50,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:50,718 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 164 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:50,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 214 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:50,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2022-03-15 15:37:50,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 5113. [2022-03-15 15:37:50,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.748239436619718) internal successors, (24273), 5112 states have internal predecessors, (24273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:50,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24273 transitions. [2022-03-15 15:37:50,863 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24273 transitions. Word has length 29 [2022-03-15 15:37:50,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:50,863 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24273 transitions. [2022-03-15 15:37:50,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24273 transitions. [2022-03-15 15:37:50,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:50,873 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:50,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:50,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1290 [2022-03-15 15:37:50,874 INFO L402 AbstractCegarLoop]: === Iteration 1292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:50,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:50,874 INFO L85 PathProgramCache]: Analyzing trace with hash 585561955, now seen corresponding path program 1287 times [2022-03-15 15:37:50,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:50,874 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654282532] [2022-03-15 15:37:50,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:50,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:51,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:51,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:51,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654282532] [2022-03-15 15:37:51,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654282532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:51,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:51,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:51,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208394572] [2022-03-15 15:37:51,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:51,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:51,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:51,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:51,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:51,030 INFO L87 Difference]: Start difference. First operand 5113 states and 24273 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:51,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:51,226 INFO L93 Difference]: Finished difference Result 10148 states and 45406 transitions. [2022-03-15 15:37:51,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:51,226 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:51,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:51,257 INFO L225 Difference]: With dead ends: 10148 [2022-03-15 15:37:51,257 INFO L226 Difference]: Without dead ends: 9733 [2022-03-15 15:37:51,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:51,257 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 171 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:51,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 205 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:51,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9733 states. [2022-03-15 15:37:51,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9733 to 5161. [2022-03-15 15:37:51,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.738178294573643) internal successors, (24449), 5160 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:51,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24449 transitions. [2022-03-15 15:37:51,441 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24449 transitions. Word has length 29 [2022-03-15 15:37:51,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:51,441 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24449 transitions. [2022-03-15 15:37:51,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:51,442 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24449 transitions. [2022-03-15 15:37:51,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:51,452 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:51,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:51,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1291 [2022-03-15 15:37:51,452 INFO L402 AbstractCegarLoop]: === Iteration 1293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:51,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:51,453 INFO L85 PathProgramCache]: Analyzing trace with hash -451241309, now seen corresponding path program 1288 times [2022-03-15 15:37:51,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:51,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286827396] [2022-03-15 15:37:51,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:51,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:51,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:51,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:51,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286827396] [2022-03-15 15:37:51,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286827396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:51,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:51,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:51,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518549282] [2022-03-15 15:37:51,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:51,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:51,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:51,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:51,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:51,598 INFO L87 Difference]: Start difference. First operand 5161 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:51,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:51,800 INFO L93 Difference]: Finished difference Result 9876 states and 44397 transitions. [2022-03-15 15:37:51,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:51,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:51,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:51,829 INFO L225 Difference]: With dead ends: 9876 [2022-03-15 15:37:51,829 INFO L226 Difference]: Without dead ends: 9365 [2022-03-15 15:37:51,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:51,830 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 143 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:51,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 240 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:51,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9365 states. [2022-03-15 15:37:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9365 to 5113. [2022-03-15 15:37:51,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.743544600938967) internal successors, (24249), 5112 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:51,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24249 transitions. [2022-03-15 15:37:51,961 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24249 transitions. Word has length 29 [2022-03-15 15:37:51,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:51,961 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24249 transitions. [2022-03-15 15:37:51,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:51,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24249 transitions. [2022-03-15 15:37:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:51,971 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:51,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:51,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1292 [2022-03-15 15:37:51,972 INFO L402 AbstractCegarLoop]: === Iteration 1294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:51,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:51,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1112730053, now seen corresponding path program 1289 times [2022-03-15 15:37:51,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:51,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197594913] [2022-03-15 15:37:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:51,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:52,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:52,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:52,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197594913] [2022-03-15 15:37:52,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197594913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:52,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:52,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:52,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963152204] [2022-03-15 15:37:52,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:52,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:52,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:52,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:52,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:52,077 INFO L87 Difference]: Start difference. First operand 5113 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:52,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:52,227 INFO L93 Difference]: Finished difference Result 10232 states and 45770 transitions. [2022-03-15 15:37:52,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:52,228 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:52,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:52,257 INFO L225 Difference]: With dead ends: 10232 [2022-03-15 15:37:52,257 INFO L226 Difference]: Without dead ends: 9757 [2022-03-15 15:37:52,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:52,258 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 161 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:52,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 208 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:52,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9757 states. [2022-03-15 15:37:52,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9757 to 5185. [2022-03-15 15:37:52,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.730902777777778) internal successors, (24525), 5184 states have internal predecessors, (24525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:52,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24525 transitions. [2022-03-15 15:37:52,391 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24525 transitions. Word has length 29 [2022-03-15 15:37:52,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:52,391 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24525 transitions. [2022-03-15 15:37:52,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:52,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24525 transitions. [2022-03-15 15:37:52,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:52,401 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:52,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:52,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1293 [2022-03-15 15:37:52,401 INFO L402 AbstractCegarLoop]: === Iteration 1295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:52,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:52,402 INFO L85 PathProgramCache]: Analyzing trace with hash -279414493, now seen corresponding path program 1290 times [2022-03-15 15:37:52,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:52,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023311011] [2022-03-15 15:37:52,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:52,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:52,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:52,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:52,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023311011] [2022-03-15 15:37:52,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023311011] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:52,506 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:52,506 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:52,506 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826531073] [2022-03-15 15:37:52,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:52,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:52,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:52,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:52,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:52,507 INFO L87 Difference]: Start difference. First operand 5185 states and 24525 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:52,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:52,656 INFO L93 Difference]: Finished difference Result 9900 states and 44473 transitions. [2022-03-15 15:37:52,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:52,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:52,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:52,686 INFO L225 Difference]: With dead ends: 9900 [2022-03-15 15:37:52,687 INFO L226 Difference]: Without dead ends: 9341 [2022-03-15 15:37:52,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:52,687 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 150 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:52,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 205 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:52,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2022-03-15 15:37:52,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 5089. [2022-03-15 15:37:52,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.74941037735849) internal successors, (24165), 5088 states have internal predecessors, (24165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:52,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24165 transitions. [2022-03-15 15:37:52,814 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24165 transitions. Word has length 29 [2022-03-15 15:37:52,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:52,814 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24165 transitions. [2022-03-15 15:37:52,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:52,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24165 transitions. [2022-03-15 15:37:52,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:52,824 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:52,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:52,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1294 [2022-03-15 15:37:52,824 INFO L402 AbstractCegarLoop]: === Iteration 1296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:52,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:52,825 INFO L85 PathProgramCache]: Analyzing trace with hash -621534503, now seen corresponding path program 1291 times [2022-03-15 15:37:52,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:52,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850960805] [2022-03-15 15:37:52,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:52,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:52,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:52,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:52,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850960805] [2022-03-15 15:37:52,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850960805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:52,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:52,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:52,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131849121] [2022-03-15 15:37:52,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:52,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:52,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:52,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:52,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:52,937 INFO L87 Difference]: Start difference. First operand 5089 states and 24165 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:53,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:53,119 INFO L93 Difference]: Finished difference Result 10256 states and 45862 transitions. [2022-03-15 15:37:53,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:53,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:53,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:53,149 INFO L225 Difference]: With dead ends: 10256 [2022-03-15 15:37:53,149 INFO L226 Difference]: Without dead ends: 9841 [2022-03-15 15:37:53,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:53,150 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 152 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:53,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 242 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:53,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9841 states. [2022-03-15 15:37:53,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9841 to 5161. [2022-03-15 15:37:53,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.741279069767442) internal successors, (24465), 5160 states have internal predecessors, (24465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:53,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24465 transitions. [2022-03-15 15:37:53,281 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24465 transitions. Word has length 29 [2022-03-15 15:37:53,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:53,281 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24465 transitions. [2022-03-15 15:37:53,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:53,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24465 transitions. [2022-03-15 15:37:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:53,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:53,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:53,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1295 [2022-03-15 15:37:53,291 INFO L402 AbstractCegarLoop]: === Iteration 1297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:53,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:53,292 INFO L85 PathProgramCache]: Analyzing trace with hash 459528123, now seen corresponding path program 1292 times [2022-03-15 15:37:53,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:53,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066856781] [2022-03-15 15:37:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:53,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:53,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:53,427 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:53,427 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066856781] [2022-03-15 15:37:53,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066856781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:53,427 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:53,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:53,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165629531] [2022-03-15 15:37:53,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:53,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:53,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:53,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:53,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:53,428 INFO L87 Difference]: Start difference. First operand 5161 states and 24465 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:53,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:53,634 INFO L93 Difference]: Finished difference Result 10316 states and 46078 transitions. [2022-03-15 15:37:53,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:53,635 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:53,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:53,672 INFO L225 Difference]: With dead ends: 10316 [2022-03-15 15:37:53,672 INFO L226 Difference]: Without dead ends: 9793 [2022-03-15 15:37:53,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:53,672 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 181 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:53,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 185 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:53,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2022-03-15 15:37:53,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 5113. [2022-03-15 15:37:53,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.746674491392802) internal successors, (24265), 5112 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:53,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24265 transitions. [2022-03-15 15:37:53,857 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24265 transitions. Word has length 29 [2022-03-15 15:37:53,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:53,857 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24265 transitions. [2022-03-15 15:37:53,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:53,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24265 transitions. [2022-03-15 15:37:53,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:53,870 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:53,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:53,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1296 [2022-03-15 15:37:53,870 INFO L402 AbstractCegarLoop]: === Iteration 1298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:53,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:53,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1795494213, now seen corresponding path program 1293 times [2022-03-15 15:37:53,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:53,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087880303] [2022-03-15 15:37:53,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:53,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:54,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:54,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:54,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087880303] [2022-03-15 15:37:54,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087880303] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:54,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:54,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:54,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822192700] [2022-03-15 15:37:54,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:54,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:54,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:54,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:54,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:54,043 INFO L87 Difference]: Start difference. First operand 5113 states and 24265 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:54,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:54,252 INFO L93 Difference]: Finished difference Result 10148 states and 45398 transitions. [2022-03-15 15:37:54,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:54,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:54,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:54,280 INFO L225 Difference]: With dead ends: 10148 [2022-03-15 15:37:54,280 INFO L226 Difference]: Without dead ends: 9733 [2022-03-15 15:37:54,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:54,281 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 160 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:54,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 218 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:54,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9733 states. [2022-03-15 15:37:54,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9733 to 5161. [2022-03-15 15:37:54,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.736627906976744) internal successors, (24441), 5160 states have internal predecessors, (24441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:54,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24441 transitions. [2022-03-15 15:37:54,408 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24441 transitions. Word has length 29 [2022-03-15 15:37:54,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:54,409 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24441 transitions. [2022-03-15 15:37:54,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:54,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24441 transitions. [2022-03-15 15:37:54,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:54,418 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:54,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:54,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1297 [2022-03-15 15:37:54,418 INFO L402 AbstractCegarLoop]: === Iteration 1299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:54,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:54,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1745926469, now seen corresponding path program 1294 times [2022-03-15 15:37:54,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:54,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954378987] [2022-03-15 15:37:54,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:54,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:54,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:54,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:54,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954378987] [2022-03-15 15:37:54,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954378987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:54,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:54,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:54,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672047121] [2022-03-15 15:37:54,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:54,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:54,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:54,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:54,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:54,538 INFO L87 Difference]: Start difference. First operand 5161 states and 24441 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:54,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:54,747 INFO L93 Difference]: Finished difference Result 9876 states and 44389 transitions. [2022-03-15 15:37:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:54,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:54,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:54,775 INFO L225 Difference]: With dead ends: 9876 [2022-03-15 15:37:54,775 INFO L226 Difference]: Without dead ends: 9365 [2022-03-15 15:37:54,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:54,776 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 140 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:54,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 255 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:54,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9365 states. [2022-03-15 15:37:54,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9365 to 5113. [2022-03-15 15:37:54,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.74197965571205) internal successors, (24241), 5112 states have internal predecessors, (24241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:54,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24241 transitions. [2022-03-15 15:37:54,900 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24241 transitions. Word has length 29 [2022-03-15 15:37:54,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:54,901 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24241 transitions. [2022-03-15 15:37:54,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:54,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24241 transitions. [2022-03-15 15:37:54,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:54,910 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:54,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:54,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1298 [2022-03-15 15:37:54,910 INFO L402 AbstractCegarLoop]: === Iteration 1300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:54,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:54,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1407489251, now seen corresponding path program 1295 times [2022-03-15 15:37:54,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:54,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137444056] [2022-03-15 15:37:54,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:54,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:55,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:55,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:55,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137444056] [2022-03-15 15:37:55,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137444056] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:55,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:55,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:55,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980466681] [2022-03-15 15:37:55,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:55,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:55,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:55,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:55,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:55,081 INFO L87 Difference]: Start difference. First operand 5113 states and 24241 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:55,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:55,277 INFO L93 Difference]: Finished difference Result 10232 states and 45762 transitions. [2022-03-15 15:37:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:55,278 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:55,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:55,306 INFO L225 Difference]: With dead ends: 10232 [2022-03-15 15:37:55,306 INFO L226 Difference]: Without dead ends: 9757 [2022-03-15 15:37:55,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:55,306 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 159 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:55,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 224 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:55,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9757 states. [2022-03-15 15:37:55,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9757 to 5185. [2022-03-15 15:37:55,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.729359567901234) internal successors, (24517), 5184 states have internal predecessors, (24517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:55,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24517 transitions. [2022-03-15 15:37:55,433 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24517 transitions. Word has length 29 [2022-03-15 15:37:55,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:55,433 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24517 transitions. [2022-03-15 15:37:55,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:55,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24517 transitions. [2022-03-15 15:37:55,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:55,443 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:55,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:55,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1299 [2022-03-15 15:37:55,443 INFO L402 AbstractCegarLoop]: === Iteration 1301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:55,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:55,443 INFO L85 PathProgramCache]: Analyzing trace with hash 771398395, now seen corresponding path program 1296 times [2022-03-15 15:37:55,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:55,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457848126] [2022-03-15 15:37:55,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:55,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:55,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:55,609 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:55,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457848126] [2022-03-15 15:37:55,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457848126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:55,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:55,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:55,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607474824] [2022-03-15 15:37:55,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:55,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:55,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:55,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:55,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:55,610 INFO L87 Difference]: Start difference. First operand 5185 states and 24517 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:55,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:55,807 INFO L93 Difference]: Finished difference Result 9900 states and 44465 transitions. [2022-03-15 15:37:55,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:55,807 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:55,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:55,840 INFO L225 Difference]: With dead ends: 9900 [2022-03-15 15:37:55,840 INFO L226 Difference]: Without dead ends: 9333 [2022-03-15 15:37:55,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:55,840 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 135 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:55,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 218 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:55,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9333 states. [2022-03-15 15:37:55,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9333 to 5081. [2022-03-15 15:37:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.7521653543307085) internal successors, (24141), 5080 states have internal predecessors, (24141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:55,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24141 transitions. [2022-03-15 15:37:55,991 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24141 transitions. Word has length 29 [2022-03-15 15:37:55,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:55,991 INFO L470 AbstractCegarLoop]: Abstraction has 5081 states and 24141 transitions. [2022-03-15 15:37:55,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:55,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24141 transitions. [2022-03-15 15:37:56,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:56,001 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:56,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:56,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1300 [2022-03-15 15:37:56,002 INFO L402 AbstractCegarLoop]: === Iteration 1302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:56,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:56,002 INFO L85 PathProgramCache]: Analyzing trace with hash -322826407, now seen corresponding path program 1297 times [2022-03-15 15:37:56,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:56,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132192517] [2022-03-15 15:37:56,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:56,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:56,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:56,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132192517] [2022-03-15 15:37:56,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132192517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:56,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:56,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:56,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147978370] [2022-03-15 15:37:56,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:56,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:56,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:56,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:56,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:56,228 INFO L87 Difference]: Start difference. First operand 5081 states and 24141 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:56,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:56,430 INFO L93 Difference]: Finished difference Result 10544 states and 47204 transitions. [2022-03-15 15:37:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:56,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:56,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:56,460 INFO L225 Difference]: With dead ends: 10544 [2022-03-15 15:37:56,460 INFO L226 Difference]: Without dead ends: 10067 [2022-03-15 15:37:56,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:56,460 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 153 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:56,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 215 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:56,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10067 states. [2022-03-15 15:37:56,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10067 to 5165. [2022-03-15 15:37:56,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.746127033307514) internal successors, (24509), 5164 states have internal predecessors, (24509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:56,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24509 transitions. [2022-03-15 15:37:56,588 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24509 transitions. Word has length 29 [2022-03-15 15:37:56,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:56,588 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24509 transitions. [2022-03-15 15:37:56,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24509 transitions. [2022-03-15 15:37:56,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:56,598 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:56,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:56,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1301 [2022-03-15 15:37:56,598 INFO L402 AbstractCegarLoop]: === Iteration 1303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:56,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:56,598 INFO L85 PathProgramCache]: Analyzing trace with hash 758236219, now seen corresponding path program 1298 times [2022-03-15 15:37:56,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:56,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726763230] [2022-03-15 15:37:56,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:56,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:56,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:56,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:56,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726763230] [2022-03-15 15:37:56,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726763230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:56,769 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:56,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:56,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612605901] [2022-03-15 15:37:56,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:56,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:56,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:56,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:56,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:56,769 INFO L87 Difference]: Start difference. First operand 5165 states and 24509 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:56,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:56,942 INFO L93 Difference]: Finished difference Result 10482 states and 46887 transitions. [2022-03-15 15:37:56,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:56,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:56,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:56,972 INFO L225 Difference]: With dead ends: 10482 [2022-03-15 15:37:56,972 INFO L226 Difference]: Without dead ends: 10019 [2022-03-15 15:37:56,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:56,973 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 177 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:56,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 185 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:56,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10019 states. [2022-03-15 15:37:57,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10019 to 5117. [2022-03-15 15:37:57,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.751563721657545) internal successors, (24309), 5116 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:57,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24309 transitions. [2022-03-15 15:37:57,112 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24309 transitions. Word has length 29 [2022-03-15 15:37:57,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:57,112 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24309 transitions. [2022-03-15 15:37:57,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:57,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24309 transitions. [2022-03-15 15:37:57,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:57,122 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:57,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:57,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1302 [2022-03-15 15:37:57,123 INFO L402 AbstractCegarLoop]: === Iteration 1304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:57,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:57,123 INFO L85 PathProgramCache]: Analyzing trace with hash -803728453, now seen corresponding path program 1299 times [2022-03-15 15:37:57,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:57,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249208803] [2022-03-15 15:37:57,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:57,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:57,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:57,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:57,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249208803] [2022-03-15 15:37:57,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249208803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:57,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:57,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:57,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684139934] [2022-03-15 15:37:57,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:57,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:57,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:57,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:57,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:57,293 INFO L87 Difference]: Start difference. First operand 5117 states and 24309 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:57,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:57,505 INFO L93 Difference]: Finished difference Result 10634 states and 47591 transitions. [2022-03-15 15:37:57,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:57,505 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:57,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:57,535 INFO L225 Difference]: With dead ends: 10634 [2022-03-15 15:37:57,536 INFO L226 Difference]: Without dead ends: 10157 [2022-03-15 15:37:57,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:57,536 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 163 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:57,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 225 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:57,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10157 states. [2022-03-15 15:37:57,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10157 to 5195. [2022-03-15 15:37:57,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.736619175972276) internal successors, (24602), 5194 states have internal predecessors, (24602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:57,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24602 transitions. [2022-03-15 15:37:57,666 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24602 transitions. Word has length 29 [2022-03-15 15:37:57,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:57,666 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24602 transitions. [2022-03-15 15:37:57,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:57,666 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24602 transitions. [2022-03-15 15:37:57,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:57,677 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:57,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:57,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1303 [2022-03-15 15:37:57,677 INFO L402 AbstractCegarLoop]: === Iteration 1305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:57,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:57,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1802992571, now seen corresponding path program 1300 times [2022-03-15 15:37:57,677 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:57,677 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343639974] [2022-03-15 15:37:57,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:57,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:57,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:57,853 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:57,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343639974] [2022-03-15 15:37:57,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343639974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:57,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:57,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:57,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194231756] [2022-03-15 15:37:57,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:57,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:57,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:57,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:57,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:57,854 INFO L87 Difference]: Start difference. First operand 5195 states and 24602 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:58,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:58,054 INFO L93 Difference]: Finished difference Result 10632 states and 47508 transitions. [2022-03-15 15:37:58,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:58,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:58,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:58,085 INFO L225 Difference]: With dead ends: 10632 [2022-03-15 15:37:58,085 INFO L226 Difference]: Without dead ends: 10079 [2022-03-15 15:37:58,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:58,085 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 161 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:58,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 206 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:58,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10079 states. [2022-03-15 15:37:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10079 to 5117. [2022-03-15 15:37:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.74687255668491) internal successors, (24285), 5116 states have internal predecessors, (24285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:58,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24285 transitions. [2022-03-15 15:37:58,350 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24285 transitions. Word has length 29 [2022-03-15 15:37:58,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:58,350 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24285 transitions. [2022-03-15 15:37:58,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:58,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24285 transitions. [2022-03-15 15:37:58,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:58,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:58,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:58,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1304 [2022-03-15 15:37:58,359 INFO L402 AbstractCegarLoop]: === Iteration 1306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:58,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:58,360 INFO L85 PathProgramCache]: Analyzing trace with hash -415723491, now seen corresponding path program 1301 times [2022-03-15 15:37:58,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:58,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642365007] [2022-03-15 15:37:58,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:58,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:58,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:58,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:58,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642365007] [2022-03-15 15:37:58,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642365007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:58,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:58,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:58,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413486385] [2022-03-15 15:37:58,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:58,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:58,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:58,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:58,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:58,518 INFO L87 Difference]: Start difference. First operand 5117 states and 24285 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:58,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:58,705 INFO L93 Difference]: Finished difference Result 10480 states and 46882 transitions. [2022-03-15 15:37:58,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:58,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:58,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:58,736 INFO L225 Difference]: With dead ends: 10480 [2022-03-15 15:37:58,736 INFO L226 Difference]: Without dead ends: 10065 [2022-03-15 15:37:58,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:58,737 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 159 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:58,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 204 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:58,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10065 states. [2022-03-15 15:37:58,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10065 to 5165. [2022-03-15 15:37:58,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.736831913245546) internal successors, (24461), 5164 states have internal predecessors, (24461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:58,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24461 transitions. [2022-03-15 15:37:58,871 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24461 transitions. Word has length 29 [2022-03-15 15:37:58,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:58,871 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24461 transitions. [2022-03-15 15:37:58,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:58,871 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24461 transitions. [2022-03-15 15:37:58,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:58,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:58,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:58,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1305 [2022-03-15 15:37:58,881 INFO L402 AbstractCegarLoop]: === Iteration 1307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:58,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:58,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1262520453, now seen corresponding path program 1302 times [2022-03-15 15:37:58,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:58,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089883946] [2022-03-15 15:37:58,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:58,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:59,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:59,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089883946] [2022-03-15 15:37:59,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089883946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:59,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:59,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:59,041 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17123009] [2022-03-15 15:37:59,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:59,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:59,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:59,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:59,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:59,042 INFO L87 Difference]: Start difference. First operand 5165 states and 24461 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:59,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:59,247 INFO L93 Difference]: Finished difference Result 10540 states and 47098 transitions. [2022-03-15 15:37:59,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:59,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:59,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:59,279 INFO L225 Difference]: With dead ends: 10540 [2022-03-15 15:37:59,279 INFO L226 Difference]: Without dead ends: 9993 [2022-03-15 15:37:59,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:59,280 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 149 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:59,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 205 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:59,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9993 states. [2022-03-15 15:37:59,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9993 to 5093. [2022-03-15 15:37:59,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.751963864886096) internal successors, (24197), 5092 states have internal predecessors, (24197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:59,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24197 transitions. [2022-03-15 15:37:59,444 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24197 transitions. Word has length 29 [2022-03-15 15:37:59,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:59,444 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24197 transitions. [2022-03-15 15:37:59,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:59,444 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24197 transitions. [2022-03-15 15:37:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:59,455 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:59,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:59,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1306 [2022-03-15 15:37:59,455 INFO L402 AbstractCegarLoop]: === Iteration 1308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:59,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:59,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1078291131, now seen corresponding path program 1303 times [2022-03-15 15:37:59,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:59,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003945179] [2022-03-15 15:37:59,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:59,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:37:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:37:59,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:37:59,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003945179] [2022-03-15 15:37:59,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003945179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:37:59,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:37:59,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:37:59,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404050331] [2022-03-15 15:37:59,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:37:59,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:37:59,618 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:37:59,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:37:59,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:37:59,618 INFO L87 Difference]: Start difference. First operand 5093 states and 24197 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:59,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:37:59,823 INFO L93 Difference]: Finished difference Result 10478 states and 46905 transitions. [2022-03-15 15:37:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:37:59,823 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:37:59,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:37:59,853 INFO L225 Difference]: With dead ends: 10478 [2022-03-15 15:37:59,853 INFO L226 Difference]: Without dead ends: 10001 [2022-03-15 15:37:59,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:37:59,854 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 148 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:37:59,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 228 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:37:59,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10001 states. [2022-03-15 15:37:59,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10001 to 5165. [2022-03-15 15:37:59,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.743803253292022) internal successors, (24497), 5164 states have internal predecessors, (24497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:59,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24497 transitions. [2022-03-15 15:37:59,982 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24497 transitions. Word has length 29 [2022-03-15 15:37:59,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:37:59,982 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24497 transitions. [2022-03-15 15:37:59,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:37:59,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24497 transitions. [2022-03-15 15:37:59,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:37:59,992 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:37:59,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:37:59,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1307 [2022-03-15 15:37:59,992 INFO L402 AbstractCegarLoop]: === Iteration 1309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:37:59,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:37:59,993 INFO L85 PathProgramCache]: Analyzing trace with hash -2135613539, now seen corresponding path program 1304 times [2022-03-15 15:37:59,993 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:37:59,993 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447927097] [2022-03-15 15:37:59,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:37:59,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:37:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:00,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:00,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:00,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447927097] [2022-03-15 15:38:00,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447927097] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:00,154 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:00,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:00,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490746348] [2022-03-15 15:38:00,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:00,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:00,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:00,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:00,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:00,155 INFO L87 Difference]: Start difference. First operand 5165 states and 24497 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:00,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:00,345 INFO L93 Difference]: Finished difference Result 10416 states and 46588 transitions. [2022-03-15 15:38:00,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:00,345 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:00,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:00,375 INFO L225 Difference]: With dead ends: 10416 [2022-03-15 15:38:00,375 INFO L226 Difference]: Without dead ends: 9953 [2022-03-15 15:38:00,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:00,375 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 149 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:00,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 240 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9953 states. [2022-03-15 15:38:00,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9953 to 5117. [2022-03-15 15:38:00,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.749218139171227) internal successors, (24297), 5116 states have internal predecessors, (24297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:00,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24297 transitions. [2022-03-15 15:38:00,504 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24297 transitions. Word has length 29 [2022-03-15 15:38:00,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:00,504 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24297 transitions. [2022-03-15 15:38:00,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:00,504 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24297 transitions. [2022-03-15 15:38:00,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:00,513 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:00,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:00,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1308 [2022-03-15 15:38:00,513 INFO L402 AbstractCegarLoop]: === Iteration 1310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:00,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:00,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1468252859, now seen corresponding path program 1305 times [2022-03-15 15:38:00,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:00,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148394774] [2022-03-15 15:38:00,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:00,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:00,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:00,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:00,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148394774] [2022-03-15 15:38:00,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148394774] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:00,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:00,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:00,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935434119] [2022-03-15 15:38:00,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:00,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:00,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:00,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:00,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:00,651 INFO L87 Difference]: Start difference. First operand 5117 states and 24297 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:00,846 INFO L93 Difference]: Finished difference Result 10392 states and 46560 transitions. [2022-03-15 15:38:00,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:00,846 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:00,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:00,885 INFO L225 Difference]: With dead ends: 10392 [2022-03-15 15:38:00,885 INFO L226 Difference]: Without dead ends: 9915 [2022-03-15 15:38:00,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:00,886 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 156 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:00,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 218 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:00,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9915 states. [2022-03-15 15:38:01,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9915 to 5189. [2022-03-15 15:38:01,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.73650732459522) internal successors, (24573), 5188 states have internal predecessors, (24573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:01,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24573 transitions. [2022-03-15 15:38:01,041 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24573 transitions. Word has length 29 [2022-03-15 15:38:01,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:01,041 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24573 transitions. [2022-03-15 15:38:01,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:01,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24573 transitions. [2022-03-15 15:38:01,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:01,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:01,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:01,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1309 [2022-03-15 15:38:01,054 INFO L402 AbstractCegarLoop]: === Iteration 1311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:01,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:01,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1039332677, now seen corresponding path program 1306 times [2022-03-15 15:38:01,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:01,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380423586] [2022-03-15 15:38:01,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:01,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:01,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:01,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:01,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380423586] [2022-03-15 15:38:01,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380423586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:01,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:01,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:01,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537188734] [2022-03-15 15:38:01,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:01,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:01,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:01,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:01,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:01,179 INFO L87 Difference]: Start difference. First operand 5189 states and 24573 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:01,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:01,333 INFO L93 Difference]: Finished difference Result 10058 states and 45258 transitions. [2022-03-15 15:38:01,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:01,333 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:01,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:01,365 INFO L225 Difference]: With dead ends: 10058 [2022-03-15 15:38:01,365 INFO L226 Difference]: Without dead ends: 9523 [2022-03-15 15:38:01,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:01,365 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 146 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:01,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 204 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:01,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9523 states. [2022-03-15 15:38:01,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9523 to 5117. [2022-03-15 15:38:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.7445269741985925) internal successors, (24273), 5116 states have internal predecessors, (24273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:01,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24273 transitions. [2022-03-15 15:38:01,522 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24273 transitions. Word has length 29 [2022-03-15 15:38:01,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:01,522 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24273 transitions. [2022-03-15 15:38:01,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:01,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24273 transitions. [2022-03-15 15:38:01,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:01,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:01,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:01,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1310 [2022-03-15 15:38:01,533 INFO L402 AbstractCegarLoop]: === Iteration 1312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:01,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:01,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1856257821, now seen corresponding path program 1307 times [2022-03-15 15:38:01,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:01,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334492162] [2022-03-15 15:38:01,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:01,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:01,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:01,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:01,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334492162] [2022-03-15 15:38:01,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334492162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:01,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:01,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:01,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708391213] [2022-03-15 15:38:01,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:01,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:01,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:01,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:01,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:01,648 INFO L87 Difference]: Start difference. First operand 5117 states and 24273 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:01,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:01,794 INFO L93 Difference]: Finished difference Result 10306 states and 46143 transitions. [2022-03-15 15:38:01,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:01,794 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:01,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:01,826 INFO L225 Difference]: With dead ends: 10306 [2022-03-15 15:38:01,827 INFO L226 Difference]: Without dead ends: 9891 [2022-03-15 15:38:01,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:01,827 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 173 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:01,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 201 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:01,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9891 states. [2022-03-15 15:38:01,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9891 to 5165. [2022-03-15 15:38:01,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.7345081332300545) internal successors, (24449), 5164 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:01,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24449 transitions. [2022-03-15 15:38:01,980 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24449 transitions. Word has length 29 [2022-03-15 15:38:01,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:01,980 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24449 transitions. [2022-03-15 15:38:01,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:01,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24449 transitions. [2022-03-15 15:38:01,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:01,991 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:01,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:01,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1311 [2022-03-15 15:38:01,991 INFO L402 AbstractCegarLoop]: === Iteration 1313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:01,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:01,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1529104517, now seen corresponding path program 1308 times [2022-03-15 15:38:01,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:01,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866047121] [2022-03-15 15:38:01,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:01,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:02,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:02,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866047121] [2022-03-15 15:38:02,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866047121] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:02,132 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:02,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:02,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692870071] [2022-03-15 15:38:02,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:02,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:02,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:02,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:02,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:02,132 INFO L87 Difference]: Start difference. First operand 5165 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:02,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:02,317 INFO L93 Difference]: Finished difference Result 10034 states and 45134 transitions. [2022-03-15 15:38:02,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:02,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:02,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:02,350 INFO L225 Difference]: With dead ends: 10034 [2022-03-15 15:38:02,350 INFO L226 Difference]: Without dead ends: 9499 [2022-03-15 15:38:02,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:02,350 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 138 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:02,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 241 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:02,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9499 states. [2022-03-15 15:38:02,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9499 to 5093. [2022-03-15 15:38:02,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.749607227022781) internal successors, (24185), 5092 states have internal predecessors, (24185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24185 transitions. [2022-03-15 15:38:02,504 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24185 transitions. Word has length 29 [2022-03-15 15:38:02,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:02,504 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24185 transitions. [2022-03-15 15:38:02,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:02,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24185 transitions. [2022-03-15 15:38:02,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:02,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:02,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:02,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1312 [2022-03-15 15:38:02,515 INFO L402 AbstractCegarLoop]: === Iteration 1314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:02,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:02,515 INFO L85 PathProgramCache]: Analyzing trace with hash 288904861, now seen corresponding path program 1309 times [2022-03-15 15:38:02,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:02,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957823758] [2022-03-15 15:38:02,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:02,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:02,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:02,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:02,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957823758] [2022-03-15 15:38:02,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957823758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:02,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:02,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:02,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27471502] [2022-03-15 15:38:02,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:02,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:02,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:02,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:02,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:02,630 INFO L87 Difference]: Start difference. First operand 5093 states and 24185 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:02,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:02,797 INFO L93 Difference]: Finished difference Result 10664 states and 47760 transitions. [2022-03-15 15:38:02,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:02,797 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:02,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:02,830 INFO L225 Difference]: With dead ends: 10664 [2022-03-15 15:38:02,831 INFO L226 Difference]: Without dead ends: 10187 [2022-03-15 15:38:02,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:02,831 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 161 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:02,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 203 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:02,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10187 states. [2022-03-15 15:38:02,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10187 to 5207. [2022-03-15 15:38:02,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.738762965808682) internal successors, (24670), 5206 states have internal predecessors, (24670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:02,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24670 transitions. [2022-03-15 15:38:02,981 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24670 transitions. Word has length 29 [2022-03-15 15:38:02,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:02,982 INFO L470 AbstractCegarLoop]: Abstraction has 5207 states and 24670 transitions. [2022-03-15 15:38:02,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:02,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24670 transitions. [2022-03-15 15:38:02,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:02,992 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:02,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:02,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1313 [2022-03-15 15:38:02,992 INFO L402 AbstractCegarLoop]: === Iteration 1315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:02,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:02,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1399341411, now seen corresponding path program 1310 times [2022-03-15 15:38:02,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:02,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16782009] [2022-03-15 15:38:02,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:02,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:03,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:03,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:03,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16782009] [2022-03-15 15:38:03,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16782009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:03,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:03,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:03,148 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169030065] [2022-03-15 15:38:03,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:03,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:03,148 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:03,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:03,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:03,149 INFO L87 Difference]: Start difference. First operand 5207 states and 24670 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:03,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:03,357 INFO L93 Difference]: Finished difference Result 10662 states and 47677 transitions. [2022-03-15 15:38:03,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:03,357 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:03,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:03,388 INFO L225 Difference]: With dead ends: 10662 [2022-03-15 15:38:03,388 INFO L226 Difference]: Without dead ends: 10109 [2022-03-15 15:38:03,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:03,388 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 151 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:03,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 227 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:03,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10109 states. [2022-03-15 15:38:03,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10109 to 5129. [2022-03-15 15:38:03,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.746684867394696) internal successors, (24341), 5128 states have internal predecessors, (24341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24341 transitions. [2022-03-15 15:38:03,544 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24341 transitions. Word has length 29 [2022-03-15 15:38:03,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:03,544 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24341 transitions. [2022-03-15 15:38:03,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:03,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24341 transitions. [2022-03-15 15:38:03,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:03,555 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:03,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:03,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1314 [2022-03-15 15:38:03,555 INFO L402 AbstractCegarLoop]: === Iteration 1316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:03,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:03,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1744107781, now seen corresponding path program 1311 times [2022-03-15 15:38:03,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:03,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177439396] [2022-03-15 15:38:03,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:03,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:03,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:03,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:03,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177439396] [2022-03-15 15:38:03,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177439396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:03,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:03,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:03,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226039576] [2022-03-15 15:38:03,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:03,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:03,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:03,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:03,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:03,718 INFO L87 Difference]: Start difference. First operand 5129 states and 24341 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:03,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:03,887 INFO L93 Difference]: Finished difference Result 10488 states and 46992 transitions. [2022-03-15 15:38:03,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:03,888 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:03,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:03,920 INFO L225 Difference]: With dead ends: 10488 [2022-03-15 15:38:03,920 INFO L226 Difference]: Without dead ends: 10011 [2022-03-15 15:38:03,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:03,920 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 165 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:03,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 199 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:03,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10011 states. [2022-03-15 15:38:04,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10011 to 5201. [2022-03-15 15:38:04,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.734038461538462) internal successors, (24617), 5200 states have internal predecessors, (24617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:04,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24617 transitions. [2022-03-15 15:38:04,073 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24617 transitions. Word has length 29 [2022-03-15 15:38:04,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:04,073 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24617 transitions. [2022-03-15 15:38:04,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:04,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24617 transitions. [2022-03-15 15:38:04,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:04,084 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:04,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:04,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1315 [2022-03-15 15:38:04,084 INFO L402 AbstractCegarLoop]: === Iteration 1317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:04,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:04,084 INFO L85 PathProgramCache]: Analyzing trace with hash 670269085, now seen corresponding path program 1312 times [2022-03-15 15:38:04,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:04,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802176215] [2022-03-15 15:38:04,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:04,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:04,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:04,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:04,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802176215] [2022-03-15 15:38:04,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802176215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:04,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:04,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:04,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374980697] [2022-03-15 15:38:04,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:04,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:04,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:04,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:04,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:04,205 INFO L87 Difference]: Start difference. First operand 5201 states and 24617 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:04,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:04,374 INFO L93 Difference]: Finished difference Result 10154 states and 45690 transitions. [2022-03-15 15:38:04,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:04,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:04,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:04,405 INFO L225 Difference]: With dead ends: 10154 [2022-03-15 15:38:04,406 INFO L226 Difference]: Without dead ends: 9619 [2022-03-15 15:38:04,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:04,406 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 142 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:04,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 238 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:04,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9619 states. [2022-03-15 15:38:04,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9619 to 5129. [2022-03-15 15:38:04,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.739664586583463) internal successors, (24305), 5128 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:04,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24305 transitions. [2022-03-15 15:38:04,555 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24305 transitions. Word has length 29 [2022-03-15 15:38:04,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:04,556 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24305 transitions. [2022-03-15 15:38:04,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:04,556 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24305 transitions. [2022-03-15 15:38:04,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:04,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:04,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:04,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1316 [2022-03-15 15:38:04,566 INFO L402 AbstractCegarLoop]: === Iteration 1318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:04,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:04,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1712388451, now seen corresponding path program 1313 times [2022-03-15 15:38:04,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:04,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419898934] [2022-03-15 15:38:04,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:04,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:04,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:04,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:04,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419898934] [2022-03-15 15:38:04,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419898934] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:04,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:04,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:04,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322063985] [2022-03-15 15:38:04,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:04,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:04,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:04,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:04,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:04,688 INFO L87 Difference]: Start difference. First operand 5129 states and 24305 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:04,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:04,866 INFO L93 Difference]: Finished difference Result 10486 states and 46951 transitions. [2022-03-15 15:38:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:04,867 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:04,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:04,900 INFO L225 Difference]: With dead ends: 10486 [2022-03-15 15:38:04,900 INFO L226 Difference]: Without dead ends: 10011 [2022-03-15 15:38:04,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:04,901 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 143 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:04,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 244 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:04,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10011 states. [2022-03-15 15:38:05,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10011 to 5201. [2022-03-15 15:38:05,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.727115384615384) internal successors, (24581), 5200 states have internal predecessors, (24581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:05,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24581 transitions. [2022-03-15 15:38:05,063 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24581 transitions. Word has length 29 [2022-03-15 15:38:05,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:05,063 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24581 transitions. [2022-03-15 15:38:05,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:05,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24581 transitions. [2022-03-15 15:38:05,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:05,074 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:05,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:05,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1317 [2022-03-15 15:38:05,074 INFO L402 AbstractCegarLoop]: === Iteration 1319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:05,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:05,074 INFO L85 PathProgramCache]: Analyzing trace with hash 466499195, now seen corresponding path program 1314 times [2022-03-15 15:38:05,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:05,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567484751] [2022-03-15 15:38:05,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:05,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:05,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:05,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:05,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567484751] [2022-03-15 15:38:05,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567484751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:05,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:05,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:05,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926407872] [2022-03-15 15:38:05,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:05,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:05,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:05,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:05,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:05,286 INFO L87 Difference]: Start difference. First operand 5201 states and 24581 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:05,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:05,458 INFO L93 Difference]: Finished difference Result 10154 states and 45654 transitions. [2022-03-15 15:38:05,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:05,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:05,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:05,491 INFO L225 Difference]: With dead ends: 10154 [2022-03-15 15:38:05,491 INFO L226 Difference]: Without dead ends: 9583 [2022-03-15 15:38:05,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:05,491 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 139 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:05,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 216 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:05,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9583 states. [2022-03-15 15:38:05,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9583 to 5093. [2022-03-15 15:38:05,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5093 states, 5092 states have (on average 4.747250589159465) internal successors, (24173), 5092 states have internal predecessors, (24173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:05,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5093 states to 5093 states and 24173 transitions. [2022-03-15 15:38:05,643 INFO L78 Accepts]: Start accepts. Automaton has 5093 states and 24173 transitions. Word has length 29 [2022-03-15 15:38:05,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:05,643 INFO L470 AbstractCegarLoop]: Abstraction has 5093 states and 24173 transitions. [2022-03-15 15:38:05,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:05,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5093 states and 24173 transitions. [2022-03-15 15:38:05,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:05,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:05,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:05,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1318 [2022-03-15 15:38:05,654 INFO L402 AbstractCegarLoop]: === Iteration 1320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:05,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:05,654 INFO L85 PathProgramCache]: Analyzing trace with hash 368425599, now seen corresponding path program 1315 times [2022-03-15 15:38:05,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:05,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587175106] [2022-03-15 15:38:05,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:05,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:05,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:05,815 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:05,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587175106] [2022-03-15 15:38:05,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587175106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:05,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:05,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:05,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782529415] [2022-03-15 15:38:05,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:05,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:05,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:05,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:05,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:05,815 INFO L87 Difference]: Start difference. First operand 5093 states and 24173 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:05,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:06,000 INFO L93 Difference]: Finished difference Result 10412 states and 46602 transitions. [2022-03-15 15:38:06,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:06,000 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:06,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:06,029 INFO L225 Difference]: With dead ends: 10412 [2022-03-15 15:38:06,029 INFO L226 Difference]: Without dead ends: 9997 [2022-03-15 15:38:06,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:06,029 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 162 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:06,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 203 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:06,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9997 states. [2022-03-15 15:38:06,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9997 to 5165. [2022-03-15 15:38:06,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.739155693261038) internal successors, (24473), 5164 states have internal predecessors, (24473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:06,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24473 transitions. [2022-03-15 15:38:06,162 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24473 transitions. Word has length 29 [2022-03-15 15:38:06,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:06,162 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24473 transitions. [2022-03-15 15:38:06,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:06,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24473 transitions. [2022-03-15 15:38:06,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:06,172 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:06,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:06,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1319 [2022-03-15 15:38:06,172 INFO L402 AbstractCegarLoop]: === Iteration 1321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:06,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:06,172 INFO L85 PathProgramCache]: Analyzing trace with hash -478371363, now seen corresponding path program 1316 times [2022-03-15 15:38:06,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:06,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904482598] [2022-03-15 15:38:06,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:06,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:06,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:06,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:06,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904482598] [2022-03-15 15:38:06,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904482598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:06,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:06,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:06,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747081687] [2022-03-15 15:38:06,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:06,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:06,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:06,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:06,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:06,323 INFO L87 Difference]: Start difference. First operand 5165 states and 24473 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:06,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:06,522 INFO L93 Difference]: Finished difference Result 10472 states and 46818 transitions. [2022-03-15 15:38:06,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:06,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:06,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:06,551 INFO L225 Difference]: With dead ends: 10472 [2022-03-15 15:38:06,551 INFO L226 Difference]: Without dead ends: 9949 [2022-03-15 15:38:06,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:06,552 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 160 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:06,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 201 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9949 states. [2022-03-15 15:38:06,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9949 to 5117. [2022-03-15 15:38:06,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.7445269741985925) internal successors, (24273), 5116 states have internal predecessors, (24273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:06,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24273 transitions. [2022-03-15 15:38:06,678 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24273 transitions. Word has length 29 [2022-03-15 15:38:06,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:06,678 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24273 transitions. [2022-03-15 15:38:06,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:06,678 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24273 transitions. [2022-03-15 15:38:06,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:06,688 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:06,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:06,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1320 [2022-03-15 15:38:06,688 INFO L402 AbstractCegarLoop]: === Iteration 1322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:06,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:06,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1664587043, now seen corresponding path program 1317 times [2022-03-15 15:38:06,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:06,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611899791] [2022-03-15 15:38:06,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:06,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:06,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:06,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:06,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611899791] [2022-03-15 15:38:06,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611899791] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:06,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:06,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:06,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370279985] [2022-03-15 15:38:06,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:06,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:06,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:06,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:06,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:06,845 INFO L87 Difference]: Start difference. First operand 5117 states and 24273 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:07,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:07,034 INFO L93 Difference]: Finished difference Result 10304 states and 46138 transitions. [2022-03-15 15:38:07,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:07,034 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:07,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:07,063 INFO L225 Difference]: With dead ends: 10304 [2022-03-15 15:38:07,064 INFO L226 Difference]: Without dead ends: 9889 [2022-03-15 15:38:07,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:07,064 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 161 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:07,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 203 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:07,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9889 states. [2022-03-15 15:38:07,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9889 to 5165. [2022-03-15 15:38:07,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 5164 states have (on average 4.7345081332300545) internal successors, (24449), 5164 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:07,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 24449 transitions. [2022-03-15 15:38:07,193 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 24449 transitions. Word has length 29 [2022-03-15 15:38:07,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:07,193 INFO L470 AbstractCegarLoop]: Abstraction has 5165 states and 24449 transitions. [2022-03-15 15:38:07,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:07,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 24449 transitions. [2022-03-15 15:38:07,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:07,203 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:07,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:07,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1321 [2022-03-15 15:38:07,203 INFO L402 AbstractCegarLoop]: === Iteration 1323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:07,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:07,203 INFO L85 PathProgramCache]: Analyzing trace with hash -127986979, now seen corresponding path program 1318 times [2022-03-15 15:38:07,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:07,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53468898] [2022-03-15 15:38:07,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:07,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:07,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:07,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:07,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53468898] [2022-03-15 15:38:07,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53468898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:07,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:07,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:07,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780163167] [2022-03-15 15:38:07,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:07,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:07,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:07,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:07,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:07,373 INFO L87 Difference]: Start difference. First operand 5165 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:07,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:07,566 INFO L93 Difference]: Finished difference Result 10032 states and 45129 transitions. [2022-03-15 15:38:07,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:07,566 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:07,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:07,594 INFO L225 Difference]: With dead ends: 10032 [2022-03-15 15:38:07,594 INFO L226 Difference]: Without dead ends: 9521 [2022-03-15 15:38:07,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:07,594 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 140 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:07,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 238 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:07,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9521 states. [2022-03-15 15:38:07,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9521 to 5117. [2022-03-15 15:38:07,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 5116 states have (on average 4.739835809225958) internal successors, (24249), 5116 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 24249 transitions. [2022-03-15 15:38:07,717 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 24249 transitions. Word has length 29 [2022-03-15 15:38:07,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:07,717 INFO L470 AbstractCegarLoop]: Abstraction has 5117 states and 24249 transitions. [2022-03-15 15:38:07,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:07,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 24249 transitions. [2022-03-15 15:38:07,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:07,726 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:07,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:07,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1322 [2022-03-15 15:38:07,727 INFO L402 AbstractCegarLoop]: === Iteration 1324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:07,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:07,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1773632187, now seen corresponding path program 1319 times [2022-03-15 15:38:07,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:07,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649889432] [2022-03-15 15:38:07,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:07,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:07,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:07,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:07,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649889432] [2022-03-15 15:38:07,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649889432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:07,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:07,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:07,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256408931] [2022-03-15 15:38:07,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:07,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:07,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:07,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:07,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:07,846 INFO L87 Difference]: Start difference. First operand 5117 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:08,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:08,033 INFO L93 Difference]: Finished difference Result 10388 states and 46502 transitions. [2022-03-15 15:38:08,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:08,034 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:08,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:08,062 INFO L225 Difference]: With dead ends: 10388 [2022-03-15 15:38:08,062 INFO L226 Difference]: Without dead ends: 9913 [2022-03-15 15:38:08,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:08,062 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 156 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:08,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 202 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:08,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9913 states. [2022-03-15 15:38:08,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9913 to 5189. [2022-03-15 15:38:08,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.727255204317657) internal successors, (24525), 5188 states have internal predecessors, (24525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:08,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24525 transitions. [2022-03-15 15:38:08,197 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24525 transitions. Word has length 29 [2022-03-15 15:38:08,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:08,197 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24525 transitions. [2022-03-15 15:38:08,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:08,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24525 transitions. [2022-03-15 15:38:08,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:08,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:08,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:08,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1323 [2022-03-15 15:38:08,208 INFO L402 AbstractCegarLoop]: === Iteration 1325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:08,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:08,208 INFO L85 PathProgramCache]: Analyzing trace with hash 599672477, now seen corresponding path program 1320 times [2022-03-15 15:38:08,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:08,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582630381] [2022-03-15 15:38:08,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:08,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:08,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:08,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:08,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582630381] [2022-03-15 15:38:08,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582630381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:08,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:08,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:08,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172256669] [2022-03-15 15:38:08,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:08,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:08,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:08,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:08,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:08,335 INFO L87 Difference]: Start difference. First operand 5189 states and 24525 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:08,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:08,506 INFO L93 Difference]: Finished difference Result 10056 states and 45205 transitions. [2022-03-15 15:38:08,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:08,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:08,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:08,535 INFO L225 Difference]: With dead ends: 10056 [2022-03-15 15:38:08,535 INFO L226 Difference]: Without dead ends: 9481 [2022-03-15 15:38:08,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:08,536 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 139 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:08,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 204 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:08,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9481 states. [2022-03-15 15:38:08,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9481 to 5077. [2022-03-15 15:38:08,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5077 states, 5076 states have (on average 4.753940110323089) internal successors, (24131), 5076 states have internal predecessors, (24131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:08,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5077 states to 5077 states and 24131 transitions. [2022-03-15 15:38:08,660 INFO L78 Accepts]: Start accepts. Automaton has 5077 states and 24131 transitions. Word has length 29 [2022-03-15 15:38:08,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:08,660 INFO L470 AbstractCegarLoop]: Abstraction has 5077 states and 24131 transitions. [2022-03-15 15:38:08,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:08,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5077 states and 24131 transitions. [2022-03-15 15:38:08,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:08,669 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:08,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:08,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1324 [2022-03-15 15:38:08,670 INFO L402 AbstractCegarLoop]: === Iteration 1326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:08,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:08,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1744931961, now seen corresponding path program 1321 times [2022-03-15 15:38:08,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:08,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521426245] [2022-03-15 15:38:08,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:08,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:08,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:08,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521426245] [2022-03-15 15:38:08,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521426245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:08,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:08,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:08,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040869694] [2022-03-15 15:38:08,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:08,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:08,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:08,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:08,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:08,917 INFO L87 Difference]: Start difference. First operand 5077 states and 24131 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:09,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:09,134 INFO L93 Difference]: Finished difference Result 12081 states and 53951 transitions. [2022-03-15 15:38:09,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:09,134 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:09,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:09,168 INFO L225 Difference]: With dead ends: 12081 [2022-03-15 15:38:09,168 INFO L226 Difference]: Without dead ends: 11539 [2022-03-15 15:38:09,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:09,169 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 176 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:09,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 210 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:09,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11539 states. [2022-03-15 15:38:09,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11539 to 5330. [2022-03-15 15:38:09,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5329 states have (on average 4.727153312066053) internal successors, (25191), 5329 states have internal predecessors, (25191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:09,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 25191 transitions. [2022-03-15 15:38:09,312 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 25191 transitions. Word has length 29 [2022-03-15 15:38:09,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:09,312 INFO L470 AbstractCegarLoop]: Abstraction has 5330 states and 25191 transitions. [2022-03-15 15:38:09,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:09,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 25191 transitions. [2022-03-15 15:38:09,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:09,321 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:09,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:09,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1325 [2022-03-15 15:38:09,322 INFO L402 AbstractCegarLoop]: === Iteration 1327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:09,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:09,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1468972709, now seen corresponding path program 1322 times [2022-03-15 15:38:09,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:09,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780577442] [2022-03-15 15:38:09,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:09,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:09,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:09,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780577442] [2022-03-15 15:38:09,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780577442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:09,472 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:09,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:09,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525852690] [2022-03-15 15:38:09,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:09,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:09,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:09,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:09,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:09,472 INFO L87 Difference]: Start difference. First operand 5330 states and 25191 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:09,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:09,687 INFO L93 Difference]: Finished difference Result 12016 states and 53582 transitions. [2022-03-15 15:38:09,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:09,687 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:09,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:09,721 INFO L225 Difference]: With dead ends: 12016 [2022-03-15 15:38:09,721 INFO L226 Difference]: Without dead ends: 11396 [2022-03-15 15:38:09,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:09,721 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 174 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:09,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 223 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:09,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11396 states. [2022-03-15 15:38:09,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11396 to 5187. [2022-03-15 15:38:09,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.746625530273814) internal successors, (24616), 5186 states have internal predecessors, (24616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:09,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24616 transitions. [2022-03-15 15:38:09,862 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24616 transitions. Word has length 29 [2022-03-15 15:38:09,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:09,862 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24616 transitions. [2022-03-15 15:38:09,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:09,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24616 transitions. [2022-03-15 15:38:09,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:09,872 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:09,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:09,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1326 [2022-03-15 15:38:09,872 INFO L402 AbstractCegarLoop]: === Iteration 1328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:09,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1264029915, now seen corresponding path program 1323 times [2022-03-15 15:38:09,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:09,872 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275880417] [2022-03-15 15:38:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:09,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:10,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:10,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:10,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275880417] [2022-03-15 15:38:10,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275880417] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:10,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:10,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:10,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580677375] [2022-03-15 15:38:10,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:10,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:10,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:10,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:10,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:10,025 INFO L87 Difference]: Start difference. First operand 5187 states and 24616 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:10,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:10,236 INFO L93 Difference]: Finished difference Result 11956 states and 53364 transitions. [2022-03-15 15:38:10,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:10,236 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:10,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:10,276 INFO L225 Difference]: With dead ends: 11956 [2022-03-15 15:38:10,277 INFO L226 Difference]: Without dead ends: 11414 [2022-03-15 15:38:10,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:10,277 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 156 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:10,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 237 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:10,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2022-03-15 15:38:10,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 5267. [2022-03-15 15:38:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 4.729206228636536) internal successors, (24904), 5266 states have internal predecessors, (24904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:10,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 24904 transitions. [2022-03-15 15:38:10,454 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 24904 transitions. Word has length 29 [2022-03-15 15:38:10,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:10,454 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 24904 transitions. [2022-03-15 15:38:10,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:10,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 24904 transitions. [2022-03-15 15:38:10,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:10,466 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:10,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:10,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1327 [2022-03-15 15:38:10,467 INFO L402 AbstractCegarLoop]: === Iteration 1329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:10,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:10,467 INFO L85 PathProgramCache]: Analyzing trace with hash -424216357, now seen corresponding path program 1324 times [2022-03-15 15:38:10,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:10,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899376598] [2022-03-15 15:38:10,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:10,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:10,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:10,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:10,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899376598] [2022-03-15 15:38:10,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899376598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:10,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:10,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:10,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460136323] [2022-03-15 15:38:10,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:10,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:10,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:10,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:10,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:10,653 INFO L87 Difference]: Start difference. First operand 5267 states and 24904 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:10,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:10,829 INFO L93 Difference]: Finished difference Result 11829 states and 52757 transitions. [2022-03-15 15:38:10,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:10,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:10,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:10,868 INFO L225 Difference]: With dead ends: 11829 [2022-03-15 15:38:10,868 INFO L226 Difference]: Without dead ends: 11334 [2022-03-15 15:38:10,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:10,868 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 189 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:10,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 203 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:10,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-03-15 15:38:11,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 5187. [2022-03-15 15:38:11,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.738912456613961) internal successors, (24576), 5186 states have internal predecessors, (24576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:11,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24576 transitions. [2022-03-15 15:38:11,029 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24576 transitions. Word has length 29 [2022-03-15 15:38:11,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:11,029 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24576 transitions. [2022-03-15 15:38:11,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:11,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24576 transitions. [2022-03-15 15:38:11,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:11,040 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:11,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:11,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1328 [2022-03-15 15:38:11,040 INFO L402 AbstractCegarLoop]: === Iteration 1330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:11,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:11,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1652034877, now seen corresponding path program 1325 times [2022-03-15 15:38:11,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:11,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979868152] [2022-03-15 15:38:11,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:11,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:11,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:11,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979868152] [2022-03-15 15:38:11,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979868152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:11,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:11,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:11,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23158355] [2022-03-15 15:38:11,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:11,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:11,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:11,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:11,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:11,154 INFO L87 Difference]: Start difference. First operand 5187 states and 24576 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:11,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:11,328 INFO L93 Difference]: Finished difference Result 11794 states and 52664 transitions. [2022-03-15 15:38:11,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:11,329 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:11,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:11,365 INFO L225 Difference]: With dead ends: 11794 [2022-03-15 15:38:11,366 INFO L226 Difference]: Without dead ends: 11317 [2022-03-15 15:38:11,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:11,366 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 182 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:11,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 226 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:11,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11317 states. [2022-03-15 15:38:11,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11317 to 5235. [2022-03-15 15:38:11,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.729079098204051) internal successors, (24752), 5234 states have internal predecessors, (24752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:11,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24752 transitions. [2022-03-15 15:38:11,512 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24752 transitions. Word has length 29 [2022-03-15 15:38:11,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:11,512 INFO L470 AbstractCegarLoop]: Abstraction has 5235 states and 24752 transitions. [2022-03-15 15:38:11,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:11,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24752 transitions. [2022-03-15 15:38:11,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:11,523 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:11,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:11,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1329 [2022-03-15 15:38:11,523 INFO L402 AbstractCegarLoop]: === Iteration 1331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:11,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:11,524 INFO L85 PathProgramCache]: Analyzing trace with hash 805237915, now seen corresponding path program 1326 times [2022-03-15 15:38:11,524 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:11,524 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311072902] [2022-03-15 15:38:11,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:11,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:11,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:11,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311072902] [2022-03-15 15:38:11,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311072902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:11,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:11,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:11,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327439656] [2022-03-15 15:38:11,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:11,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:11,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:11,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:11,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:11,653 INFO L87 Difference]: Start difference. First operand 5235 states and 24752 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:11,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:11,829 INFO L93 Difference]: Finished difference Result 11732 states and 52347 transitions. [2022-03-15 15:38:11,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:11,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:11,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:11,866 INFO L225 Difference]: With dead ends: 11732 [2022-03-15 15:38:11,866 INFO L226 Difference]: Without dead ends: 11213 [2022-03-15 15:38:11,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:11,866 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 180 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:11,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 217 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:11,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11213 states. [2022-03-15 15:38:12,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11213 to 5131. [2022-03-15 15:38:12,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.751656920077973) internal successors, (24376), 5130 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:12,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24376 transitions. [2022-03-15 15:38:12,106 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24376 transitions. Word has length 29 [2022-03-15 15:38:12,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:12,106 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24376 transitions. [2022-03-15 15:38:12,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:12,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24376 transitions. [2022-03-15 15:38:12,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:12,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:12,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:12,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1330 [2022-03-15 15:38:12,119 INFO L402 AbstractCegarLoop]: === Iteration 1332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:12,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:12,119 INFO L85 PathProgramCache]: Analyzing trace with hash -840433573, now seen corresponding path program 1327 times [2022-03-15 15:38:12,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:12,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132539371] [2022-03-15 15:38:12,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:12,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:12,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:12,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:12,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132539371] [2022-03-15 15:38:12,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132539371] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:12,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:12,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:12,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475759749] [2022-03-15 15:38:12,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:12,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:12,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:12,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:12,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:12,253 INFO L87 Difference]: Start difference. First operand 5131 states and 24376 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:12,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:12,414 INFO L93 Difference]: Finished difference Result 12232 states and 54610 transitions. [2022-03-15 15:38:12,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:12,414 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:12,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:12,454 INFO L225 Difference]: With dead ends: 12232 [2022-03-15 15:38:12,454 INFO L226 Difference]: Without dead ends: 11690 [2022-03-15 15:38:12,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:12,454 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 229 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:12,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 174 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:12,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11690 states. [2022-03-15 15:38:12,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11690 to 5361. [2022-03-15 15:38:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 5360 states have (on average 4.71865671641791) internal successors, (25292), 5360 states have internal predecessors, (25292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:12,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 25292 transitions. [2022-03-15 15:38:12,632 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 25292 transitions. Word has length 29 [2022-03-15 15:38:12,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:12,632 INFO L470 AbstractCegarLoop]: Abstraction has 5361 states and 25292 transitions. [2022-03-15 15:38:12,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:12,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 25292 transitions. [2022-03-15 15:38:12,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:12,643 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:12,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:12,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1331 [2022-03-15 15:38:12,643 INFO L402 AbstractCegarLoop]: === Iteration 1333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:12,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:12,644 INFO L85 PathProgramCache]: Analyzing trace with hash 240629053, now seen corresponding path program 1328 times [2022-03-15 15:38:12,644 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:12,644 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862834224] [2022-03-15 15:38:12,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:12,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:12,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:12,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862834224] [2022-03-15 15:38:12,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862834224] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:12,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:12,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:12,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010929090] [2022-03-15 15:38:12,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:12,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:12,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:12,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:12,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:12,842 INFO L87 Difference]: Start difference. First operand 5361 states and 25292 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:13,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:13,054 INFO L93 Difference]: Finished difference Result 12167 states and 54241 transitions. [2022-03-15 15:38:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:13,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:13,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:13,093 INFO L225 Difference]: With dead ends: 12167 [2022-03-15 15:38:13,093 INFO L226 Difference]: Without dead ends: 11547 [2022-03-15 15:38:13,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:13,093 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 175 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:13,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 202 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:13,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11547 states. [2022-03-15 15:38:13,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11547 to 5218. [2022-03-15 15:38:13,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5218 states, 5217 states have (on average 4.734905117883842) internal successors, (24702), 5217 states have internal predecessors, (24702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:13,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 24702 transitions. [2022-03-15 15:38:13,268 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 24702 transitions. Word has length 29 [2022-03-15 15:38:13,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:13,268 INFO L470 AbstractCegarLoop]: Abstraction has 5218 states and 24702 transitions. [2022-03-15 15:38:13,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:13,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 24702 transitions. [2022-03-15 15:38:13,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:13,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:13,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:13,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1332 [2022-03-15 15:38:13,279 INFO L402 AbstractCegarLoop]: === Iteration 1334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:13,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:13,280 INFO L85 PathProgramCache]: Analyzing trace with hash 252536923, now seen corresponding path program 1329 times [2022-03-15 15:38:13,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:13,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452947184] [2022-03-15 15:38:13,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:13,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:13,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:13,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:13,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452947184] [2022-03-15 15:38:13,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452947184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:13,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:13,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:13,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057544741] [2022-03-15 15:38:13,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:13,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:13,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:13,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:13,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:13,418 INFO L87 Difference]: Start difference. First operand 5218 states and 24702 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:13,597 INFO L93 Difference]: Finished difference Result 12197 states and 54419 transitions. [2022-03-15 15:38:13,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:13,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:13,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:13,635 INFO L225 Difference]: With dead ends: 12197 [2022-03-15 15:38:13,636 INFO L226 Difference]: Without dead ends: 11655 [2022-03-15 15:38:13,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:13,636 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 201 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:13,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 190 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:13,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11655 states. [2022-03-15 15:38:13,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11655 to 5328. [2022-03-15 15:38:13,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 4.7131593767599025) internal successors, (25107), 5327 states have internal predecessors, (25107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:13,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 25107 transitions. [2022-03-15 15:38:13,812 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 25107 transitions. Word has length 29 [2022-03-15 15:38:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:13,812 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 25107 transitions. [2022-03-15 15:38:13,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:13,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 25107 transitions. [2022-03-15 15:38:13,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:13,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:13,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:13,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1333 [2022-03-15 15:38:13,824 INFO L402 AbstractCegarLoop]: === Iteration 1335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:13,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:13,824 INFO L85 PathProgramCache]: Analyzing trace with hash 302104667, now seen corresponding path program 1330 times [2022-03-15 15:38:13,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:13,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996843515] [2022-03-15 15:38:13,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:13,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:13,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:13,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996843515] [2022-03-15 15:38:13,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996843515] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:13,935 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:13,935 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:13,935 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586386896] [2022-03-15 15:38:13,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:13,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:13,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:13,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:13,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:13,935 INFO L87 Difference]: Start difference. First operand 5328 states and 25107 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:14,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:14,117 INFO L93 Difference]: Finished difference Result 12130 states and 54046 transitions. [2022-03-15 15:38:14,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:14,117 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:14,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:14,156 INFO L225 Difference]: With dead ends: 12130 [2022-03-15 15:38:14,156 INFO L226 Difference]: Without dead ends: 11545 [2022-03-15 15:38:14,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:14,156 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 173 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:14,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 198 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:14,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11545 states. [2022-03-15 15:38:14,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11545 to 5218. [2022-03-15 15:38:14,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5218 states, 5217 states have (on average 4.724362660532873) internal successors, (24647), 5217 states have internal predecessors, (24647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:14,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 5218 states and 24647 transitions. [2022-03-15 15:38:14,333 INFO L78 Accepts]: Start accepts. Automaton has 5218 states and 24647 transitions. Word has length 29 [2022-03-15 15:38:14,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:14,333 INFO L470 AbstractCegarLoop]: Abstraction has 5218 states and 24647 transitions. [2022-03-15 15:38:14,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:14,333 INFO L276 IsEmpty]: Start isEmpty. Operand 5218 states and 24647 transitions. [2022-03-15 15:38:14,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:14,344 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:14,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:14,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1334 [2022-03-15 15:38:14,344 INFO L402 AbstractCegarLoop]: === Iteration 1336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:14,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:14,345 INFO L85 PathProgramCache]: Analyzing trace with hash 640541885, now seen corresponding path program 1331 times [2022-03-15 15:38:14,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:14,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024760380] [2022-03-15 15:38:14,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:14,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:14,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:14,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024760380] [2022-03-15 15:38:14,457 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024760380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:14,457 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:14,457 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:14,457 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256143007] [2022-03-15 15:38:14,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:14,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:14,457 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:14,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:14,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:14,458 INFO L87 Difference]: Start difference. First operand 5218 states and 24647 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:14,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:14,653 INFO L93 Difference]: Finished difference Result 12035 states and 53704 transitions. [2022-03-15 15:38:14,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:14,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:14,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:14,693 INFO L225 Difference]: With dead ends: 12035 [2022-03-15 15:38:14,693 INFO L226 Difference]: Without dead ends: 11558 [2022-03-15 15:38:14,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:14,694 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 165 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:14,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 237 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:14,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11558 states. [2022-03-15 15:38:14,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11558 to 5296. [2022-03-15 15:38:14,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5295 states have (on average 4.710103871576959) internal successors, (24940), 5295 states have internal predecessors, (24940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:14,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 24940 transitions. [2022-03-15 15:38:14,869 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 24940 transitions. Word has length 29 [2022-03-15 15:38:14,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:14,869 INFO L470 AbstractCegarLoop]: Abstraction has 5296 states and 24940 transitions. [2022-03-15 15:38:14,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:14,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 24940 transitions. [2022-03-15 15:38:14,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:14,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:14,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:14,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1335 [2022-03-15 15:38:14,880 INFO L402 AbstractCegarLoop]: === Iteration 1337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:14,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:14,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1475537765, now seen corresponding path program 1332 times [2022-03-15 15:38:14,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:14,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391500284] [2022-03-15 15:38:14,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:14,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:15,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:15,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391500284] [2022-03-15 15:38:15,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391500284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:15,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:15,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:15,048 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746780480] [2022-03-15 15:38:15,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:15,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:15,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:15,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:15,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:15,048 INFO L87 Difference]: Start difference. First operand 5296 states and 24940 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:15,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:15,283 INFO L93 Difference]: Finished difference Result 12033 states and 53621 transitions. [2022-03-15 15:38:15,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:15,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:15,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:15,321 INFO L225 Difference]: With dead ends: 12033 [2022-03-15 15:38:15,321 INFO L226 Difference]: Without dead ends: 11393 [2022-03-15 15:38:15,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:15,322 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 150 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:15,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 215 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:15,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11393 states. [2022-03-15 15:38:15,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11393 to 5131. [2022-03-15 15:38:15,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.744639376218323) internal successors, (24340), 5130 states have internal predecessors, (24340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:15,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24340 transitions. [2022-03-15 15:38:15,492 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24340 transitions. Word has length 29 [2022-03-15 15:38:15,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:15,492 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24340 transitions. [2022-03-15 15:38:15,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:15,493 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24340 transitions. [2022-03-15 15:38:15,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:15,503 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:15,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:15,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1336 [2022-03-15 15:38:15,503 INFO L402 AbstractCegarLoop]: === Iteration 1338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:15,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:15,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1629819843, now seen corresponding path program 1333 times [2022-03-15 15:38:15,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:15,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450988628] [2022-03-15 15:38:15,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:15,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:15,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:15,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:15,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450988628] [2022-03-15 15:38:15,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450988628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:15,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:15,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:15,633 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082475641] [2022-03-15 15:38:15,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:15,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:15,633 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:15,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:15,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:15,633 INFO L87 Difference]: Start difference. First operand 5131 states and 24340 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:15,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:15,854 INFO L93 Difference]: Finished difference Result 11905 states and 53172 transitions. [2022-03-15 15:38:15,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:15,854 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:15,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:15,893 INFO L225 Difference]: With dead ends: 11905 [2022-03-15 15:38:15,893 INFO L226 Difference]: Without dead ends: 11363 [2022-03-15 15:38:15,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:15,894 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 194 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:15,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 201 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:15,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11363 states. [2022-03-15 15:38:16,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11363 to 5251. [2022-03-15 15:38:16,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.729904761904762) internal successors, (24832), 5250 states have internal predecessors, (24832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:16,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24832 transitions. [2022-03-15 15:38:16,073 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24832 transitions. Word has length 29 [2022-03-15 15:38:16,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:16,073 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24832 transitions. [2022-03-15 15:38:16,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:16,073 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24832 transitions. [2022-03-15 15:38:16,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:16,084 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:16,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:16,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1337 [2022-03-15 15:38:16,084 INFO L402 AbstractCegarLoop]: === Iteration 1339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:16,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:16,084 INFO L85 PathProgramCache]: Analyzing trace with hash 976901181, now seen corresponding path program 1334 times [2022-03-15 15:38:16,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:16,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294414566] [2022-03-15 15:38:16,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:16,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:16,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:16,208 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294414566] [2022-03-15 15:38:16,208 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294414566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:16,208 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:16,208 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:16,208 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831371737] [2022-03-15 15:38:16,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:16,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:16,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:16,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:16,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:16,209 INFO L87 Difference]: Start difference. First operand 5251 states and 24832 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:16,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:16,379 INFO L93 Difference]: Finished difference Result 11778 states and 52565 transitions. [2022-03-15 15:38:16,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:16,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:16,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:16,417 INFO L225 Difference]: With dead ends: 11778 [2022-03-15 15:38:16,417 INFO L226 Difference]: Without dead ends: 11283 [2022-03-15 15:38:16,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:16,417 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 193 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:16,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 195 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:16,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11283 states. [2022-03-15 15:38:16,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11283 to 5171. [2022-03-15 15:38:16,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.739651837524178) internal successors, (24504), 5170 states have internal predecessors, (24504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:16,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24504 transitions. [2022-03-15 15:38:16,590 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24504 transitions. Word has length 29 [2022-03-15 15:38:16,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:16,590 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24504 transitions. [2022-03-15 15:38:16,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:16,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24504 transitions. [2022-03-15 15:38:16,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:16,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:16,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:16,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1338 [2022-03-15 15:38:16,601 INFO L402 AbstractCegarLoop]: === Iteration 1340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:16,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:16,601 INFO L85 PathProgramCache]: Analyzing trace with hash 642085915, now seen corresponding path program 1335 times [2022-03-15 15:38:16,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:16,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166499368] [2022-03-15 15:38:16,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:16,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:16,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:16,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:16,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166499368] [2022-03-15 15:38:16,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166499368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:16,725 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:16,725 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:16,725 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498347919] [2022-03-15 15:38:16,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:16,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:16,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:16,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:16,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:16,726 INFO L87 Difference]: Start difference. First operand 5171 states and 24504 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:16,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:16,913 INFO L93 Difference]: Finished difference Result 11995 states and 53543 transitions. [2022-03-15 15:38:16,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:16,913 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:16,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:16,952 INFO L225 Difference]: With dead ends: 11995 [2022-03-15 15:38:16,952 INFO L226 Difference]: Without dead ends: 11453 [2022-03-15 15:38:16,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:16,952 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 169 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:16,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 236 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:16,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11453 states. [2022-03-15 15:38:17,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11453 to 5281. [2022-03-15 15:38:17,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 5280 states have (on average 4.7176136363636365) internal successors, (24909), 5280 states have internal predecessors, (24909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:17,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 24909 transitions. [2022-03-15 15:38:17,131 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 24909 transitions. Word has length 29 [2022-03-15 15:38:17,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:17,131 INFO L470 AbstractCegarLoop]: Abstraction has 5281 states and 24909 transitions. [2022-03-15 15:38:17,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:17,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 24909 transitions. [2022-03-15 15:38:17,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:17,142 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:17,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:17,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1339 [2022-03-15 15:38:17,142 INFO L402 AbstractCegarLoop]: === Iteration 1341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:17,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:17,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2011706429, now seen corresponding path program 1336 times [2022-03-15 15:38:17,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:17,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894988000] [2022-03-15 15:38:17,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:17,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:17,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:17,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:17,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894988000] [2022-03-15 15:38:17,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894988000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:17,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:17,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:17,280 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176309151] [2022-03-15 15:38:17,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:17,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:17,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:17,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:17,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:17,280 INFO L87 Difference]: Start difference. First operand 5281 states and 24909 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:17,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:17,465 INFO L93 Difference]: Finished difference Result 11928 states and 53170 transitions. [2022-03-15 15:38:17,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:17,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:17,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:17,503 INFO L225 Difference]: With dead ends: 11928 [2022-03-15 15:38:17,503 INFO L226 Difference]: Without dead ends: 11343 [2022-03-15 15:38:17,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:17,503 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 176 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:17,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 209 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:17,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11343 states. [2022-03-15 15:38:17,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11343 to 5171. [2022-03-15 15:38:17,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5171 states, 5170 states have (on average 4.731914893617021) internal successors, (24464), 5170 states have internal predecessors, (24464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:17,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 24464 transitions. [2022-03-15 15:38:17,677 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 24464 transitions. Word has length 29 [2022-03-15 15:38:17,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:17,677 INFO L470 AbstractCegarLoop]: Abstraction has 5171 states and 24464 transitions. [2022-03-15 15:38:17,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:17,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 24464 transitions. [2022-03-15 15:38:17,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:17,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:17,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:17,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1340 [2022-03-15 15:38:17,688 INFO L402 AbstractCegarLoop]: === Iteration 1342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:17,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:17,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1366862909, now seen corresponding path program 1337 times [2022-03-15 15:38:17,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:17,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388210886] [2022-03-15 15:38:17,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:17,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:17,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:17,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:17,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388210886] [2022-03-15 15:38:17,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388210886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:17,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:17,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:17,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875551104] [2022-03-15 15:38:17,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:17,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:17,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:17,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:17,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:17,872 INFO L87 Difference]: Start difference. First operand 5171 states and 24464 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:18,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:18,088 INFO L93 Difference]: Finished difference Result 11679 states and 52158 transitions. [2022-03-15 15:38:18,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:18,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:18,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:18,126 INFO L225 Difference]: With dead ends: 11679 [2022-03-15 15:38:18,126 INFO L226 Difference]: Without dead ends: 11264 [2022-03-15 15:38:18,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:18,126 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 177 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:18,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 191 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:18,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11264 states. [2022-03-15 15:38:18,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11264 to 5219. [2022-03-15 15:38:18,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.722115753162131) internal successors, (24640), 5218 states have internal predecessors, (24640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:18,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24640 transitions. [2022-03-15 15:38:18,300 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24640 transitions. Word has length 29 [2022-03-15 15:38:18,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:18,300 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24640 transitions. [2022-03-15 15:38:18,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:18,300 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24640 transitions. [2022-03-15 15:38:18,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:18,311 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:18,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:18,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1341 [2022-03-15 15:38:18,311 INFO L402 AbstractCegarLoop]: === Iteration 1343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:18,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:18,311 INFO L85 PathProgramCache]: Analyzing trace with hash 520065947, now seen corresponding path program 1338 times [2022-03-15 15:38:18,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:18,312 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358655981] [2022-03-15 15:38:18,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:18,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:18,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:18,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:18,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:18,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358655981] [2022-03-15 15:38:18,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358655981] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:18,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:18,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:18,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932254497] [2022-03-15 15:38:18,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:18,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:18,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:18,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:18,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:18,501 INFO L87 Difference]: Start difference. First operand 5219 states and 24640 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:18,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:18,762 INFO L93 Difference]: Finished difference Result 11739 states and 52374 transitions. [2022-03-15 15:38:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:18,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:18,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:18,798 INFO L225 Difference]: With dead ends: 11739 [2022-03-15 15:38:18,799 INFO L226 Difference]: Without dead ends: 11176 [2022-03-15 15:38:18,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:18,799 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 160 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:18,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 214 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:38:18,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11176 states. [2022-03-15 15:38:18,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11176 to 5131. [2022-03-15 15:38:18,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.7407407407407405) internal successors, (24320), 5130 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:19,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24320 transitions. [2022-03-15 15:38:19,012 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24320 transitions. Word has length 29 [2022-03-15 15:38:19,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:19,012 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24320 transitions. [2022-03-15 15:38:19,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24320 transitions. [2022-03-15 15:38:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:19,023 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:19,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:19,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1342 [2022-03-15 15:38:19,023 INFO L402 AbstractCegarLoop]: === Iteration 1344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:19,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:19,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1550299105, now seen corresponding path program 1339 times [2022-03-15 15:38:19,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:19,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184161376] [2022-03-15 15:38:19,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:19,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:19,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:19,231 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:19,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184161376] [2022-03-15 15:38:19,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184161376] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:19,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:19,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:19,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712094672] [2022-03-15 15:38:19,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:19,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:19,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:19,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:19,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:19,247 INFO L87 Difference]: Start difference. First operand 5131 states and 24320 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:19,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:19,421 INFO L93 Difference]: Finished difference Result 11598 states and 51866 transitions. [2022-03-15 15:38:19,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:19,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:19,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:19,454 INFO L225 Difference]: With dead ends: 11598 [2022-03-15 15:38:19,454 INFO L226 Difference]: Without dead ends: 11121 [2022-03-15 15:38:19,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:19,454 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 187 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:19,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 195 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:19,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2022-03-15 15:38:19,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 5203. [2022-03-15 15:38:19,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.73279507881584) internal successors, (24620), 5202 states have internal predecessors, (24620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:19,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24620 transitions. [2022-03-15 15:38:19,596 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24620 transitions. Word has length 29 [2022-03-15 15:38:19,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:19,596 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24620 transitions. [2022-03-15 15:38:19,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:19,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24620 transitions. [2022-03-15 15:38:19,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:19,606 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:19,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:19,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1343 [2022-03-15 15:38:19,607 INFO L402 AbstractCegarLoop]: === Iteration 1345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:19,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:19,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1897871229, now seen corresponding path program 1340 times [2022-03-15 15:38:19,607 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:19,607 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181427768] [2022-03-15 15:38:19,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:19,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:19,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:19,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181427768] [2022-03-15 15:38:19,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181427768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:19,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:19,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:19,712 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435501525] [2022-03-15 15:38:19,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:19,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:19,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:19,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:19,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:19,712 INFO L87 Difference]: Start difference. First operand 5203 states and 24620 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:19,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:19,886 INFO L93 Difference]: Finished difference Result 11536 states and 51549 transitions. [2022-03-15 15:38:19,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:19,886 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:19,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:19,924 INFO L225 Difference]: With dead ends: 11536 [2022-03-15 15:38:19,924 INFO L226 Difference]: Without dead ends: 11073 [2022-03-15 15:38:19,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:19,924 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 177 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:19,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 213 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:19,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11073 states. [2022-03-15 15:38:20,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11073 to 5155. [2022-03-15 15:38:20,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.738067520372526) internal successors, (24420), 5154 states have internal predecessors, (24420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:20,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24420 transitions. [2022-03-15 15:38:20,104 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24420 transitions. Word has length 29 [2022-03-15 15:38:20,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:20,105 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24420 transitions. [2022-03-15 15:38:20,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:20,105 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24420 transitions. [2022-03-15 15:38:20,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:20,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:20,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:20,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1344 [2022-03-15 15:38:20,116 INFO L402 AbstractCegarLoop]: === Iteration 1346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:20,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:20,116 INFO L85 PathProgramCache]: Analyzing trace with hash 721606653, now seen corresponding path program 1341 times [2022-03-15 15:38:20,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:20,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907377562] [2022-03-15 15:38:20,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:20,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:20,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:20,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:20,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907377562] [2022-03-15 15:38:20,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907377562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:20,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:20,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:20,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130950836] [2022-03-15 15:38:20,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:20,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:20,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:20,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:20,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:20,281 INFO L87 Difference]: Start difference. First operand 5155 states and 24420 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:20,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:20,493 INFO L93 Difference]: Finished difference Result 11688 states and 52253 transitions. [2022-03-15 15:38:20,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:20,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:20,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:20,530 INFO L225 Difference]: With dead ends: 11688 [2022-03-15 15:38:20,530 INFO L226 Difference]: Without dead ends: 11211 [2022-03-15 15:38:20,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:20,530 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 161 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:20,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 219 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:20,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11211 states. [2022-03-15 15:38:20,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11211 to 5233. [2022-03-15 15:38:20,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.7234327217125385) internal successors, (24713), 5232 states have internal predecessors, (24713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:20,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24713 transitions. [2022-03-15 15:38:20,701 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24713 transitions. Word has length 29 [2022-03-15 15:38:20,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:20,701 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24713 transitions. [2022-03-15 15:38:20,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:20,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24713 transitions. [2022-03-15 15:38:20,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:20,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:20,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:20,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1345 [2022-03-15 15:38:20,712 INFO L402 AbstractCegarLoop]: === Iteration 1347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:20,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:20,713 INFO L85 PathProgramCache]: Analyzing trace with hash -74420227, now seen corresponding path program 1342 times [2022-03-15 15:38:20,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:20,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55830893] [2022-03-15 15:38:20,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:20,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:20,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:20,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:20,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55830893] [2022-03-15 15:38:20,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55830893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:20,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:20,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:20,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270141953] [2022-03-15 15:38:20,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:20,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:20,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:20,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:20,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:20,855 INFO L87 Difference]: Start difference. First operand 5233 states and 24713 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:21,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:21,066 INFO L93 Difference]: Finished difference Result 11686 states and 52170 transitions. [2022-03-15 15:38:21,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:21,066 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:21,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:21,103 INFO L225 Difference]: With dead ends: 11686 [2022-03-15 15:38:21,103 INFO L226 Difference]: Without dead ends: 11133 [2022-03-15 15:38:21,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:21,104 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 163 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:21,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 198 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:21,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11133 states. [2022-03-15 15:38:21,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11133 to 5155. [2022-03-15 15:38:21,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.733410942956927) internal successors, (24396), 5154 states have internal predecessors, (24396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:21,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24396 transitions. [2022-03-15 15:38:21,271 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24396 transitions. Word has length 29 [2022-03-15 15:38:21,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:21,271 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24396 transitions. [2022-03-15 15:38:21,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:21,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24396 transitions. [2022-03-15 15:38:21,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:21,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:21,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:21,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1346 [2022-03-15 15:38:21,282 INFO L402 AbstractCegarLoop]: === Iteration 1348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:21,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:21,282 INFO L85 PathProgramCache]: Analyzing trace with hash -135141413, now seen corresponding path program 1343 times [2022-03-15 15:38:21,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:21,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090526274] [2022-03-15 15:38:21,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:21,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:21,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:21,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090526274] [2022-03-15 15:38:21,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090526274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:21,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:21,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:21,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913656861] [2022-03-15 15:38:21,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:21,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:21,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:21,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:21,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:21,454 INFO L87 Difference]: Start difference. First operand 5155 states and 24396 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:21,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:21,651 INFO L93 Difference]: Finished difference Result 11534 states and 51544 transitions. [2022-03-15 15:38:21,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:21,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:21,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:21,689 INFO L225 Difference]: With dead ends: 11534 [2022-03-15 15:38:21,689 INFO L226 Difference]: Without dead ends: 11119 [2022-03-15 15:38:21,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:21,690 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 172 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:21,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 195 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:21,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11119 states. [2022-03-15 15:38:21,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11119 to 5203. [2022-03-15 15:38:21,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.723567858515955) internal successors, (24572), 5202 states have internal predecessors, (24572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24572 transitions. [2022-03-15 15:38:21,858 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24572 transitions. Word has length 29 [2022-03-15 15:38:21,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:21,858 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24572 transitions. [2022-03-15 15:38:21,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:21,858 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24572 transitions. [2022-03-15 15:38:21,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:21,869 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:21,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:21,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1347 [2022-03-15 15:38:21,869 INFO L402 AbstractCegarLoop]: === Iteration 1349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:21,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:21,870 INFO L85 PathProgramCache]: Analyzing trace with hash -616043459, now seen corresponding path program 1344 times [2022-03-15 15:38:21,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:21,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416290225] [2022-03-15 15:38:21,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:21,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:22,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:22,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:22,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416290225] [2022-03-15 15:38:22,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416290225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:22,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:22,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:22,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000598715] [2022-03-15 15:38:22,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:22,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:22,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:22,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:22,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:22,047 INFO L87 Difference]: Start difference. First operand 5203 states and 24572 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:22,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:22,246 INFO L93 Difference]: Finished difference Result 11594 states and 51760 transitions. [2022-03-15 15:38:22,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:22,246 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:22,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:22,283 INFO L225 Difference]: With dead ends: 11594 [2022-03-15 15:38:22,283 INFO L226 Difference]: Without dead ends: 11011 [2022-03-15 15:38:22,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:22,283 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 149 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:22,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 206 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:22,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11011 states. [2022-03-15 15:38:22,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11011 to 5095. [2022-03-15 15:38:22,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.752650176678445) internal successors, (24210), 5094 states have internal predecessors, (24210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:22,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24210 transitions. [2022-03-15 15:38:22,452 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24210 transitions. Word has length 29 [2022-03-15 15:38:22,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:22,452 INFO L470 AbstractCegarLoop]: Abstraction has 5095 states and 24210 transitions. [2022-03-15 15:38:22,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24210 transitions. [2022-03-15 15:38:22,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:22,463 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:22,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:22,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1348 [2022-03-15 15:38:22,463 INFO L402 AbstractCegarLoop]: === Iteration 1350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:22,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:22,463 INFO L85 PathProgramCache]: Analyzing trace with hash -400844965, now seen corresponding path program 1345 times [2022-03-15 15:38:22,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:22,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620264399] [2022-03-15 15:38:22,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:22,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:22,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:22,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:22,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620264399] [2022-03-15 15:38:22,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620264399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:22,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:22,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:22,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494035953] [2022-03-15 15:38:22,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:22,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:22,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:22,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:22,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:22,588 INFO L87 Difference]: Start difference. First operand 5095 states and 24210 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:22,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:22,760 INFO L93 Difference]: Finished difference Result 11974 states and 53490 transitions. [2022-03-15 15:38:22,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:22,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:22,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:22,798 INFO L225 Difference]: With dead ends: 11974 [2022-03-15 15:38:22,799 INFO L226 Difference]: Without dead ends: 11432 [2022-03-15 15:38:22,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:22,799 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 174 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:22,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 203 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:22,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11432 states. [2022-03-15 15:38:22,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11432 to 5322. [2022-03-15 15:38:22,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5321 states have (on average 4.725615485810938) internal successors, (25145), 5321 states have internal predecessors, (25145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 25145 transitions. [2022-03-15 15:38:22,977 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 25145 transitions. Word has length 29 [2022-03-15 15:38:22,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:22,977 INFO L470 AbstractCegarLoop]: Abstraction has 5322 states and 25145 transitions. [2022-03-15 15:38:22,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:22,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 25145 transitions. [2022-03-15 15:38:22,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:22,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:22,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:22,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1349 [2022-03-15 15:38:22,988 INFO L402 AbstractCegarLoop]: === Iteration 1351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:22,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:22,988 INFO L85 PathProgramCache]: Analyzing trace with hash 680217661, now seen corresponding path program 1346 times [2022-03-15 15:38:22,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:22,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478178466] [2022-03-15 15:38:22,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:22,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:23,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:23,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478178466] [2022-03-15 15:38:23,125 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478178466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:23,125 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:23,125 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:23,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443336240] [2022-03-15 15:38:23,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:23,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:23,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:23,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:23,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:23,125 INFO L87 Difference]: Start difference. First operand 5322 states and 25145 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:23,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:23,312 INFO L93 Difference]: Finished difference Result 11909 states and 53121 transitions. [2022-03-15 15:38:23,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:23,313 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:23,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:23,351 INFO L225 Difference]: With dead ends: 11909 [2022-03-15 15:38:23,351 INFO L226 Difference]: Without dead ends: 11289 [2022-03-15 15:38:23,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:23,351 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 166 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:23,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 212 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:23,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11289 states. [2022-03-15 15:38:23,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11289 to 5179. [2022-03-15 15:38:23,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.745075318655852) internal successors, (24570), 5178 states have internal predecessors, (24570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24570 transitions. [2022-03-15 15:38:23,530 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24570 transitions. Word has length 29 [2022-03-15 15:38:23,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:23,530 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24570 transitions. [2022-03-15 15:38:23,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:23,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24570 transitions. [2022-03-15 15:38:23,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:23,541 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:23,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:23,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1350 [2022-03-15 15:38:23,541 INFO L402 AbstractCegarLoop]: === Iteration 1352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:23,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:23,542 INFO L85 PathProgramCache]: Analyzing trace with hash -881747011, now seen corresponding path program 1347 times [2022-03-15 15:38:23,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:23,542 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976834612] [2022-03-15 15:38:23,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:23,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:23,732 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:23,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976834612] [2022-03-15 15:38:23,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976834612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:23,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:23,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:23,733 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442553304] [2022-03-15 15:38:23,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:23,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:23,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:23,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:23,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:23,733 INFO L87 Difference]: Start difference. First operand 5179 states and 24570 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:23,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:23,944 INFO L93 Difference]: Finished difference Result 11849 states and 52903 transitions. [2022-03-15 15:38:23,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:23,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:23,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:23,983 INFO L225 Difference]: With dead ends: 11849 [2022-03-15 15:38:23,984 INFO L226 Difference]: Without dead ends: 11307 [2022-03-15 15:38:23,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:23,984 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 175 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:23,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 202 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:24,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2022-03-15 15:38:24,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 5259. [2022-03-15 15:38:24,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7276531000380375) internal successors, (24858), 5258 states have internal predecessors, (24858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:24,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24858 transitions. [2022-03-15 15:38:24,167 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24858 transitions. Word has length 29 [2022-03-15 15:38:24,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:24,167 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 24858 transitions. [2022-03-15 15:38:24,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:24,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24858 transitions. [2022-03-15 15:38:24,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:24,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:24,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:24,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1351 [2022-03-15 15:38:24,178 INFO L402 AbstractCegarLoop]: === Iteration 1353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:24,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:24,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1724974013, now seen corresponding path program 1348 times [2022-03-15 15:38:24,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:24,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273279991] [2022-03-15 15:38:24,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:24,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:24,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:24,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:24,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273279991] [2022-03-15 15:38:24,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273279991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:24,367 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:24,367 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:24,367 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605531516] [2022-03-15 15:38:24,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:24,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:24,368 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:24,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:24,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:24,368 INFO L87 Difference]: Start difference. First operand 5259 states and 24858 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:24,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:24,596 INFO L93 Difference]: Finished difference Result 11722 states and 52296 transitions. [2022-03-15 15:38:24,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:24,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:24,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:24,634 INFO L225 Difference]: With dead ends: 11722 [2022-03-15 15:38:24,634 INFO L226 Difference]: Without dead ends: 11227 [2022-03-15 15:38:24,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:24,634 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 178 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:24,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 226 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:24,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11227 states. [2022-03-15 15:38:24,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11227 to 5179. [2022-03-15 15:38:24,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.73735032831209) internal successors, (24530), 5178 states have internal predecessors, (24530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24530 transitions. [2022-03-15 15:38:24,801 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24530 transitions. Word has length 29 [2022-03-15 15:38:24,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:24,801 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24530 transitions. [2022-03-15 15:38:24,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:24,801 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24530 transitions. [2022-03-15 15:38:24,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:24,812 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:24,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:24,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1352 [2022-03-15 15:38:24,812 INFO L402 AbstractCegarLoop]: === Iteration 1354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:24,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:24,813 INFO L85 PathProgramCache]: Analyzing trace with hash -493742049, now seen corresponding path program 1349 times [2022-03-15 15:38:24,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:24,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759728386] [2022-03-15 15:38:24,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:24,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:25,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:25,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:25,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759728386] [2022-03-15 15:38:25,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759728386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:25,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:25,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:25,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613278836] [2022-03-15 15:38:25,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:25,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:25,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:25,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:25,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:25,010 INFO L87 Difference]: Start difference. First operand 5179 states and 24530 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:25,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:25,204 INFO L93 Difference]: Finished difference Result 11687 states and 52203 transitions. [2022-03-15 15:38:25,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:25,204 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:25,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:25,240 INFO L225 Difference]: With dead ends: 11687 [2022-03-15 15:38:25,241 INFO L226 Difference]: Without dead ends: 11210 [2022-03-15 15:38:25,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:25,241 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 176 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:25,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 215 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:25,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11210 states. [2022-03-15 15:38:25,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11210 to 5227. [2022-03-15 15:38:25,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 4.727516264829697) internal successors, (24706), 5226 states have internal predecessors, (24706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:25,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 24706 transitions. [2022-03-15 15:38:25,409 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 24706 transitions. Word has length 29 [2022-03-15 15:38:25,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:25,409 INFO L470 AbstractCegarLoop]: Abstraction has 5227 states and 24706 transitions. [2022-03-15 15:38:25,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:25,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 24706 transitions. [2022-03-15 15:38:25,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:25,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:25,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:25,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1353 [2022-03-15 15:38:25,420 INFO L402 AbstractCegarLoop]: === Iteration 1355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:25,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:25,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1340539011, now seen corresponding path program 1350 times [2022-03-15 15:38:25,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:25,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42440586] [2022-03-15 15:38:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:25,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:25,582 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:25,582 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42440586] [2022-03-15 15:38:25,582 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42440586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:25,582 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:25,582 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:25,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129869307] [2022-03-15 15:38:25,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:25,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:25,582 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:25,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:25,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:25,583 INFO L87 Difference]: Start difference. First operand 5227 states and 24706 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:25,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:25,765 INFO L93 Difference]: Finished difference Result 11625 states and 51886 transitions. [2022-03-15 15:38:25,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:25,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:25,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:25,800 INFO L225 Difference]: With dead ends: 11625 [2022-03-15 15:38:25,800 INFO L226 Difference]: Without dead ends: 11106 [2022-03-15 15:38:25,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:25,800 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 196 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:25,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 177 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:25,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11106 states. [2022-03-15 15:38:25,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11106 to 5123. [2022-03-15 15:38:25,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.750097618117922) internal successors, (24330), 5122 states have internal predecessors, (24330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:25,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24330 transitions. [2022-03-15 15:38:25,953 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24330 transitions. Word has length 29 [2022-03-15 15:38:25,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:25,953 INFO L470 AbstractCegarLoop]: Abstraction has 5123 states and 24330 transitions. [2022-03-15 15:38:25,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:25,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24330 transitions. [2022-03-15 15:38:25,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:25,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:25,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:25,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1354 [2022-03-15 15:38:25,963 INFO L402 AbstractCegarLoop]: === Iteration 1356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:25,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:25,963 INFO L85 PathProgramCache]: Analyzing trace with hash 690220891, now seen corresponding path program 1351 times [2022-03-15 15:38:25,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:25,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547013544] [2022-03-15 15:38:25,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:25,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:26,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:26,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:26,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547013544] [2022-03-15 15:38:26,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547013544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:26,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:26,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:26,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678284099] [2022-03-15 15:38:26,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:26,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:26,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:26,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:26,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:26,122 INFO L87 Difference]: Start difference. First operand 5123 states and 24330 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:26,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:26,318 INFO L93 Difference]: Finished difference Result 11939 states and 53372 transitions. [2022-03-15 15:38:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:26,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:26,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:26,418 INFO L225 Difference]: With dead ends: 11939 [2022-03-15 15:38:26,419 INFO L226 Difference]: Without dead ends: 11397 [2022-03-15 15:38:26,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:26,419 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 159 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:26,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 211 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:26,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11397 states. [2022-03-15 15:38:26,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11397 to 5334. [2022-03-15 15:38:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5333 states have (on average 4.722482655165948) internal successors, (25185), 5333 states have internal predecessors, (25185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:26,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 25185 transitions. [2022-03-15 15:38:26,571 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 25185 transitions. Word has length 29 [2022-03-15 15:38:26,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:26,571 INFO L470 AbstractCegarLoop]: Abstraction has 5334 states and 25185 transitions. [2022-03-15 15:38:26,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:26,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 25185 transitions. [2022-03-15 15:38:26,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:26,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:26,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:26,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1355 [2022-03-15 15:38:26,582 INFO L402 AbstractCegarLoop]: === Iteration 1357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:26,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:26,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1771283517, now seen corresponding path program 1352 times [2022-03-15 15:38:26,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:26,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966548843] [2022-03-15 15:38:26,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:26,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:26,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:26,718 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:26,718 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966548843] [2022-03-15 15:38:26,718 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966548843] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:26,718 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:26,718 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:26,718 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937851164] [2022-03-15 15:38:26,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:26,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:26,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:26,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:26,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:26,718 INFO L87 Difference]: Start difference. First operand 5334 states and 25185 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:26,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:26,920 INFO L93 Difference]: Finished difference Result 11874 states and 53003 transitions. [2022-03-15 15:38:26,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:26,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:26,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:26,955 INFO L225 Difference]: With dead ends: 11874 [2022-03-15 15:38:26,955 INFO L226 Difference]: Without dead ends: 11254 [2022-03-15 15:38:26,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:26,955 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 163 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:26,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 215 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:26,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11254 states. [2022-03-15 15:38:27,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11254 to 5191. [2022-03-15 15:38:27,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.739499036608863) internal successors, (24598), 5190 states have internal predecessors, (24598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24598 transitions. [2022-03-15 15:38:27,106 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24598 transitions. Word has length 29 [2022-03-15 15:38:27,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:27,106 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24598 transitions. [2022-03-15 15:38:27,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:27,106 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24598 transitions. [2022-03-15 15:38:27,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:27,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:27,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:27,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1356 [2022-03-15 15:38:27,116 INFO L402 AbstractCegarLoop]: === Iteration 1358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:27,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:27,117 INFO L85 PathProgramCache]: Analyzing trace with hash 377173851, now seen corresponding path program 1353 times [2022-03-15 15:38:27,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:27,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488038166] [2022-03-15 15:38:27,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:27,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:27,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:27,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:27,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488038166] [2022-03-15 15:38:27,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488038166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:27,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:27,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:27,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382947236] [2022-03-15 15:38:27,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:27,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:27,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:27,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:27,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:27,304 INFO L87 Difference]: Start difference. First operand 5191 states and 24598 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:27,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:27,536 INFO L93 Difference]: Finished difference Result 11663 states and 52194 transitions. [2022-03-15 15:38:27,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:27,537 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:27,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:27,569 INFO L225 Difference]: With dead ends: 11663 [2022-03-15 15:38:27,569 INFO L226 Difference]: Without dead ends: 11121 [2022-03-15 15:38:27,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:27,569 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 166 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:27,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 234 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:38:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2022-03-15 15:38:27,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 5295. [2022-03-15 15:38:27,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 4.719682659614658) internal successors, (24986), 5294 states have internal predecessors, (24986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:27,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 24986 transitions. [2022-03-15 15:38:27,714 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 24986 transitions. Word has length 29 [2022-03-15 15:38:27,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:27,714 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 24986 transitions. [2022-03-15 15:38:27,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:27,714 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 24986 transitions. [2022-03-15 15:38:27,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:27,725 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:27,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:27,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1357 [2022-03-15 15:38:27,725 INFO L402 AbstractCegarLoop]: === Iteration 1359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:27,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:27,725 INFO L85 PathProgramCache]: Analyzing trace with hash -392597669, now seen corresponding path program 1354 times [2022-03-15 15:38:27,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:27,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174835826] [2022-03-15 15:38:27,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:27,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:27,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:27,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174835826] [2022-03-15 15:38:27,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174835826] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:27,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:27,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:27,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434550285] [2022-03-15 15:38:27,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:27,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:27,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:27,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:27,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:27,894 INFO L87 Difference]: Start difference. First operand 5295 states and 24986 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:28,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:28,091 INFO L93 Difference]: Finished difference Result 11264 states and 50602 transitions. [2022-03-15 15:38:28,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:28,091 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:28,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:28,126 INFO L225 Difference]: With dead ends: 11264 [2022-03-15 15:38:28,127 INFO L226 Difference]: Without dead ends: 10697 [2022-03-15 15:38:28,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:28,127 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 147 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:28,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 216 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:28,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10697 states. [2022-03-15 15:38:28,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10697 to 5191. [2022-03-15 15:38:28,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 4.729479768786127) internal successors, (24546), 5190 states have internal predecessors, (24546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:28,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 24546 transitions. [2022-03-15 15:38:28,283 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 24546 transitions. Word has length 29 [2022-03-15 15:38:28,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:28,283 INFO L470 AbstractCegarLoop]: Abstraction has 5191 states and 24546 transitions. [2022-03-15 15:38:28,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:28,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 24546 transitions. [2022-03-15 15:38:28,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:28,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:28,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:28,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1358 [2022-03-15 15:38:28,294 INFO L402 AbstractCegarLoop]: === Iteration 1360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:28,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:28,294 INFO L85 PathProgramCache]: Analyzing trace with hash 765178813, now seen corresponding path program 1355 times [2022-03-15 15:38:28,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:28,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437755391] [2022-03-15 15:38:28,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:28,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:28,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:28,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:28,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437755391] [2022-03-15 15:38:28,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437755391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:28,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:28,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:28,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907955101] [2022-03-15 15:38:28,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:28,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:28,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:28,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:28,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:28,420 INFO L87 Difference]: Start difference. First operand 5191 states and 24546 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:28,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:28,613 INFO L93 Difference]: Finished difference Result 11566 states and 51740 transitions. [2022-03-15 15:38:28,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:28,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:28,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:28,647 INFO L225 Difference]: With dead ends: 11566 [2022-03-15 15:38:28,647 INFO L226 Difference]: Without dead ends: 11089 [2022-03-15 15:38:28,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:28,648 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 157 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:28,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 213 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:28,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11089 states. [2022-03-15 15:38:28,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11089 to 5263. [2022-03-15 15:38:28,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 4.717217787913341) internal successors, (24822), 5262 states have internal predecessors, (24822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:28,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 24822 transitions. [2022-03-15 15:38:28,802 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 24822 transitions. Word has length 29 [2022-03-15 15:38:28,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:28,802 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 24822 transitions. [2022-03-15 15:38:28,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:28,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 24822 transitions. [2022-03-15 15:38:28,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:28,813 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:28,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:28,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1359 [2022-03-15 15:38:28,813 INFO L402 AbstractCegarLoop]: === Iteration 1361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:28,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:28,813 INFO L85 PathProgramCache]: Analyzing trace with hash 405501083, now seen corresponding path program 1356 times [2022-03-15 15:38:28,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:28,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115338922] [2022-03-15 15:38:28,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:28,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:28,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:28,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:28,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115338922] [2022-03-15 15:38:28,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115338922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:28,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:28,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:28,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098144915] [2022-03-15 15:38:28,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:28,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:28,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:28,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:28,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:28,956 INFO L87 Difference]: Start difference. First operand 5263 states and 24822 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:29,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:29,131 INFO L93 Difference]: Finished difference Result 11232 states and 50438 transitions. [2022-03-15 15:38:29,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:29,132 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:29,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:29,165 INFO L225 Difference]: With dead ends: 11232 [2022-03-15 15:38:29,165 INFO L226 Difference]: Without dead ends: 10629 [2022-03-15 15:38:29,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:29,165 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 171 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:29,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 204 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:29,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10629 states. [2022-03-15 15:38:29,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10629 to 5123. [2022-03-15 15:38:29,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.744631003514252) internal successors, (24302), 5122 states have internal predecessors, (24302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:29,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24302 transitions. [2022-03-15 15:38:29,315 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24302 transitions. Word has length 29 [2022-03-15 15:38:29,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:29,315 INFO L470 AbstractCegarLoop]: Abstraction has 5123 states and 24302 transitions. [2022-03-15 15:38:29,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:29,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24302 transitions. [2022-03-15 15:38:29,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:29,325 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:29,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:29,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1360 [2022-03-15 15:38:29,325 INFO L402 AbstractCegarLoop]: === Iteration 1362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:29,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:29,325 INFO L85 PathProgramCache]: Analyzing trace with hash -99165379, now seen corresponding path program 1357 times [2022-03-15 15:38:29,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:29,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040783744] [2022-03-15 15:38:29,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:29,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:29,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:29,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:29,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040783744] [2022-03-15 15:38:29,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040783744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:29,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:29,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:29,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79639439] [2022-03-15 15:38:29,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:29,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:29,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:29,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:29,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:29,437 INFO L87 Difference]: Start difference. First operand 5123 states and 24302 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:29,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:29,589 INFO L93 Difference]: Finished difference Result 11700 states and 52288 transitions. [2022-03-15 15:38:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:29,589 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:29,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:29,624 INFO L225 Difference]: With dead ends: 11700 [2022-03-15 15:38:29,624 INFO L226 Difference]: Without dead ends: 11158 [2022-03-15 15:38:29,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:29,624 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 175 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:29,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 197 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:29,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11158 states. [2022-03-15 15:38:29,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11158 to 5243. [2022-03-15 15:38:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.7298740938573065) internal successors, (24794), 5242 states have internal predecessors, (24794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:29,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24794 transitions. [2022-03-15 15:38:29,780 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24794 transitions. Word has length 29 [2022-03-15 15:38:29,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:29,780 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 24794 transitions. [2022-03-15 15:38:29,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:29,780 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24794 transitions. [2022-03-15 15:38:29,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:29,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:29,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:29,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1361 [2022-03-15 15:38:29,791 INFO L402 AbstractCegarLoop]: === Iteration 1363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:29,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:29,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1787411651, now seen corresponding path program 1358 times [2022-03-15 15:38:29,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:29,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664614839] [2022-03-15 15:38:29,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:29,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:29,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:29,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:29,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664614839] [2022-03-15 15:38:29,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664614839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:29,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:29,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:29,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464923389] [2022-03-15 15:38:29,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:29,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:29,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:29,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:29,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:29,904 INFO L87 Difference]: Start difference. First operand 5243 states and 24794 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:30,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:30,078 INFO L93 Difference]: Finished difference Result 11573 states and 51681 transitions. [2022-03-15 15:38:30,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:30,078 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:30,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:30,112 INFO L225 Difference]: With dead ends: 11573 [2022-03-15 15:38:30,112 INFO L226 Difference]: Without dead ends: 11078 [2022-03-15 15:38:30,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:30,113 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 193 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:30,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 191 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:30,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11078 states. [2022-03-15 15:38:30,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11078 to 5163. [2022-03-15 15:38:30,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.739635800077489) internal successors, (24466), 5162 states have internal predecessors, (24466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:30,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24466 transitions. [2022-03-15 15:38:30,268 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24466 transitions. Word has length 29 [2022-03-15 15:38:30,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:30,268 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 24466 transitions. [2022-03-15 15:38:30,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:30,268 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24466 transitions. [2022-03-15 15:38:30,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:30,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:30,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:30,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1362 [2022-03-15 15:38:30,279 INFO L402 AbstractCegarLoop]: === Iteration 1364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:30,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:30,279 INFO L85 PathProgramCache]: Analyzing trace with hash -2142129125, now seen corresponding path program 1359 times [2022-03-15 15:38:30,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:30,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630687528] [2022-03-15 15:38:30,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:30,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:30,458 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:30,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630687528] [2022-03-15 15:38:30,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630687528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:30,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:30,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:30,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824270384] [2022-03-15 15:38:30,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:30,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:30,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:30,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:30,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:30,459 INFO L87 Difference]: Start difference. First operand 5163 states and 24466 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:30,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:30,627 INFO L93 Difference]: Finished difference Result 11549 states and 51669 transitions. [2022-03-15 15:38:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:30,628 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:30,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:30,662 INFO L225 Difference]: With dead ends: 11549 [2022-03-15 15:38:30,663 INFO L226 Difference]: Without dead ends: 11007 [2022-03-15 15:38:30,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:30,663 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 172 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:30,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 194 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:30,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11007 states. [2022-03-15 15:38:30,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11007 to 5267. [2022-03-15 15:38:30,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 4.719711355867831) internal successors, (24854), 5266 states have internal predecessors, (24854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:30,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 24854 transitions. [2022-03-15 15:38:30,814 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 24854 transitions. Word has length 29 [2022-03-15 15:38:30,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:30,814 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 24854 transitions. [2022-03-15 15:38:30,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:30,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 24854 transitions. [2022-03-15 15:38:30,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:30,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:30,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:30,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1363 [2022-03-15 15:38:30,825 INFO L402 AbstractCegarLoop]: === Iteration 1365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:30,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:30,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1317004093, now seen corresponding path program 1360 times [2022-03-15 15:38:30,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:30,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064746343] [2022-03-15 15:38:30,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:30,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:30,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:30,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:30,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064746343] [2022-03-15 15:38:30,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064746343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:30,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:30,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:30,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465009039] [2022-03-15 15:38:30,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:30,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:30,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:30,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:30,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:30,982 INFO L87 Difference]: Start difference. First operand 5267 states and 24854 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:31,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:31,210 INFO L93 Difference]: Finished difference Result 11150 states and 50077 transitions. [2022-03-15 15:38:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:31,211 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:31,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:31,244 INFO L225 Difference]: With dead ends: 11150 [2022-03-15 15:38:31,245 INFO L226 Difference]: Without dead ends: 10583 [2022-03-15 15:38:31,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:31,245 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 166 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:31,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 240 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:31,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10583 states. [2022-03-15 15:38:31,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10583 to 5163. [2022-03-15 15:38:31,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5163 states, 5162 states have (on average 4.731886865555986) internal successors, (24426), 5162 states have internal predecessors, (24426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:31,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 24426 transitions. [2022-03-15 15:38:31,397 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 24426 transitions. Word has length 29 [2022-03-15 15:38:31,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:31,397 INFO L470 AbstractCegarLoop]: Abstraction has 5163 states and 24426 transitions. [2022-03-15 15:38:31,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:31,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 24426 transitions. [2022-03-15 15:38:31,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:31,407 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:31,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:31,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1364 [2022-03-15 15:38:31,407 INFO L402 AbstractCegarLoop]: === Iteration 1366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:31,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:31,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1491499837, now seen corresponding path program 1361 times [2022-03-15 15:38:31,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:31,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345021899] [2022-03-15 15:38:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:31,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:31,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:31,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345021899] [2022-03-15 15:38:31,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345021899] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:31,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:31,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:31,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820567698] [2022-03-15 15:38:31,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:31,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:31,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:31,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:31,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:31,564 INFO L87 Difference]: Start difference. First operand 5163 states and 24426 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:31,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:31,752 INFO L93 Difference]: Finished difference Result 11366 states and 50834 transitions. [2022-03-15 15:38:31,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:31,752 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:31,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:31,786 INFO L225 Difference]: With dead ends: 11366 [2022-03-15 15:38:31,786 INFO L226 Difference]: Without dead ends: 10951 [2022-03-15 15:38:31,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:31,787 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 176 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:31,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 199 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:31,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10951 states. [2022-03-15 15:38:31,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10951 to 5211. [2022-03-15 15:38:31,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.722072936660268) internal successors, (24602), 5210 states have internal predecessors, (24602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:31,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24602 transitions. [2022-03-15 15:38:31,935 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24602 transitions. Word has length 29 [2022-03-15 15:38:31,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:31,935 INFO L470 AbstractCegarLoop]: Abstraction has 5211 states and 24602 transitions. [2022-03-15 15:38:31,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:31,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24602 transitions. [2022-03-15 15:38:31,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:31,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:31,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:31,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1365 [2022-03-15 15:38:31,946 INFO L402 AbstractCegarLoop]: === Iteration 1367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:31,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:31,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1893862501, now seen corresponding path program 1362 times [2022-03-15 15:38:31,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:31,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154428220] [2022-03-15 15:38:31,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:31,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:32,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:32,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154428220] [2022-03-15 15:38:32,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154428220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:32,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:32,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:32,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414858019] [2022-03-15 15:38:32,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:32,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:32,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:32,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:32,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:32,115 INFO L87 Difference]: Start difference. First operand 5211 states and 24602 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:32,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:32,326 INFO L93 Difference]: Finished difference Result 11094 states and 49825 transitions. [2022-03-15 15:38:32,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:32,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:32,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:32,360 INFO L225 Difference]: With dead ends: 11094 [2022-03-15 15:38:32,360 INFO L226 Difference]: Without dead ends: 10543 [2022-03-15 15:38:32,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:32,360 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 152 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:32,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 205 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:32,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10543 states. [2022-03-15 15:38:32,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10543 to 5123. [2022-03-15 15:38:32,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 4.740726278797345) internal successors, (24282), 5122 states have internal predecessors, (24282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 24282 transitions. [2022-03-15 15:38:32,515 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 24282 transitions. Word has length 29 [2022-03-15 15:38:32,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:32,515 INFO L470 AbstractCegarLoop]: Abstraction has 5123 states and 24282 transitions. [2022-03-15 15:38:32,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:32,515 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 24282 transitions. [2022-03-15 15:38:32,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:32,525 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:32,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:32,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1366 [2022-03-15 15:38:32,525 INFO L402 AbstractCegarLoop]: === Iteration 1368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:32,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:32,526 INFO L85 PathProgramCache]: Analyzing trace with hash -19644641, now seen corresponding path program 1363 times [2022-03-15 15:38:32,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:32,526 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044942381] [2022-03-15 15:38:32,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:32,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:32,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:32,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:32,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044942381] [2022-03-15 15:38:32,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044942381] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:32,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:32,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:32,645 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045551531] [2022-03-15 15:38:32,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:32,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:32,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:32,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:32,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:32,646 INFO L87 Difference]: Start difference. First operand 5123 states and 24282 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:32,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:32,810 INFO L93 Difference]: Finished difference Result 11425 states and 51126 transitions. [2022-03-15 15:38:32,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:32,810 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:32,845 INFO L225 Difference]: With dead ends: 11425 [2022-03-15 15:38:32,845 INFO L226 Difference]: Without dead ends: 10948 [2022-03-15 15:38:32,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:32,846 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 169 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:32,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 196 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:32,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10948 states. [2022-03-15 15:38:32,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10948 to 5195. [2022-03-15 15:38:32,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.732768579129765) internal successors, (24582), 5194 states have internal predecessors, (24582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:33,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24582 transitions. [2022-03-15 15:38:33,126 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24582 transitions. Word has length 29 [2022-03-15 15:38:33,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:33,126 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24582 transitions. [2022-03-15 15:38:33,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:33,126 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24582 transitions. [2022-03-15 15:38:33,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:33,137 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:33,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:33,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1367 [2022-03-15 15:38:33,137 INFO L402 AbstractCegarLoop]: === Iteration 1369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:33,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:33,138 INFO L85 PathProgramCache]: Analyzing trace with hash -866441603, now seen corresponding path program 1364 times [2022-03-15 15:38:33,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:33,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262277322] [2022-03-15 15:38:33,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:33,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:33,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:33,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262277322] [2022-03-15 15:38:33,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262277322] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:33,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:33,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:33,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627436548] [2022-03-15 15:38:33,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:33,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:33,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:33,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:33,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:33,307 INFO L87 Difference]: Start difference. First operand 5195 states and 24582 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:33,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:33,477 INFO L93 Difference]: Finished difference Result 11363 states and 50809 transitions. [2022-03-15 15:38:33,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:33,478 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:33,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:33,513 INFO L225 Difference]: With dead ends: 11363 [2022-03-15 15:38:33,513 INFO L226 Difference]: Without dead ends: 10900 [2022-03-15 15:38:33,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:33,513 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 174 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:33,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 209 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:33,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10900 states. [2022-03-15 15:38:33,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10900 to 5147. [2022-03-15 15:38:33,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.7380489700738435) internal successors, (24382), 5146 states have internal predecessors, (24382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:33,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24382 transitions. [2022-03-15 15:38:33,672 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24382 transitions. Word has length 29 [2022-03-15 15:38:33,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:33,672 INFO L470 AbstractCegarLoop]: Abstraction has 5147 states and 24382 transitions. [2022-03-15 15:38:33,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:33,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24382 transitions. [2022-03-15 15:38:33,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:33,684 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:33,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:33,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1368 [2022-03-15 15:38:33,685 INFO L402 AbstractCegarLoop]: === Iteration 1370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:33,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:33,685 INFO L85 PathProgramCache]: Analyzing trace with hash -2062608387, now seen corresponding path program 1365 times [2022-03-15 15:38:33,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:33,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644554539] [2022-03-15 15:38:33,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:33,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:33,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:33,833 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:33,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644554539] [2022-03-15 15:38:33,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644554539] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:33,834 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:33,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:33,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289976363] [2022-03-15 15:38:33,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:33,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:33,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:33,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:33,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:33,834 INFO L87 Difference]: Start difference. First operand 5147 states and 24382 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:34,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:34,015 INFO L93 Difference]: Finished difference Result 11339 states and 50781 transitions. [2022-03-15 15:38:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:34,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:34,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:34,050 INFO L225 Difference]: With dead ends: 11339 [2022-03-15 15:38:34,051 INFO L226 Difference]: Without dead ends: 10862 [2022-03-15 15:38:34,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:34,051 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 173 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:34,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 218 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:34,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10862 states. [2022-03-15 15:38:34,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10862 to 5219. [2022-03-15 15:38:34,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.725565350709084) internal successors, (24658), 5218 states have internal predecessors, (24658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24658 transitions. [2022-03-15 15:38:34,216 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24658 transitions. Word has length 29 [2022-03-15 15:38:34,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:34,216 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24658 transitions. [2022-03-15 15:38:34,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24658 transitions. [2022-03-15 15:38:34,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:34,227 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:34,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:34,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1369 [2022-03-15 15:38:34,227 INFO L402 AbstractCegarLoop]: === Iteration 1371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:34,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:34,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1806618621, now seen corresponding path program 1366 times [2022-03-15 15:38:34,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:34,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422544048] [2022-03-15 15:38:34,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:34,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:34,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:34,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:34,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422544048] [2022-03-15 15:38:34,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422544048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:34,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:34,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:34,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059914614] [2022-03-15 15:38:34,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:34,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:34,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:34,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:34,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:34,335 INFO L87 Difference]: Start difference. First operand 5219 states and 24658 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:34,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:34,518 INFO L93 Difference]: Finished difference Result 11005 states and 49479 transitions. [2022-03-15 15:38:34,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:34,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:34,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:34,552 INFO L225 Difference]: With dead ends: 11005 [2022-03-15 15:38:34,552 INFO L226 Difference]: Without dead ends: 10470 [2022-03-15 15:38:34,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:34,553 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 157 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:34,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 249 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:34,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2022-03-15 15:38:34,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 5147. [2022-03-15 15:38:34,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5147 states, 5146 states have (on average 4.733385153517295) internal successors, (24358), 5146 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:34,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5147 states to 5147 states and 24358 transitions. [2022-03-15 15:38:34,704 INFO L78 Accepts]: Start accepts. Automaton has 5147 states and 24358 transitions. Word has length 29 [2022-03-15 15:38:34,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:34,705 INFO L470 AbstractCegarLoop]: Abstraction has 5147 states and 24358 transitions. [2022-03-15 15:38:34,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:34,705 INFO L276 IsEmpty]: Start isEmpty. Operand 5147 states and 24358 transitions. [2022-03-15 15:38:34,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:34,715 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:34,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:34,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1370 [2022-03-15 15:38:34,715 INFO L402 AbstractCegarLoop]: === Iteration 1372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:34,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:34,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1375610843, now seen corresponding path program 1367 times [2022-03-15 15:38:34,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:34,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105247732] [2022-03-15 15:38:34,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:34,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:34,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:34,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:34,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105247732] [2022-03-15 15:38:34,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105247732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:34,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:34,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:34,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104729089] [2022-03-15 15:38:34,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:34,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:34,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:34,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:34,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:34,822 INFO L87 Difference]: Start difference. First operand 5147 states and 24358 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:34,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:34,976 INFO L93 Difference]: Finished difference Result 11253 states and 50364 transitions. [2022-03-15 15:38:34,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:34,977 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:34,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:35,013 INFO L225 Difference]: With dead ends: 11253 [2022-03-15 15:38:35,013 INFO L226 Difference]: Without dead ends: 10838 [2022-03-15 15:38:35,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:35,013 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 172 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:35,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 199 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:35,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10838 states. [2022-03-15 15:38:35,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10838 to 5195. [2022-03-15 15:38:35,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.72352714670774) internal successors, (24534), 5194 states have internal predecessors, (24534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:35,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24534 transitions. [2022-03-15 15:38:35,191 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24534 transitions. Word has length 29 [2022-03-15 15:38:35,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:35,191 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24534 transitions. [2022-03-15 15:38:35,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:35,191 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24534 transitions. [2022-03-15 15:38:35,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:35,201 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:35,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:35,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1371 [2022-03-15 15:38:35,202 INFO L402 AbstractCegarLoop]: === Iteration 1373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:35,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:35,202 INFO L85 PathProgramCache]: Analyzing trace with hash -491406531, now seen corresponding path program 1368 times [2022-03-15 15:38:35,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:35,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487034513] [2022-03-15 15:38:35,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:35,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:35,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:35,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:35,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487034513] [2022-03-15 15:38:35,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487034513] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:35,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:35,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:35,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534566326] [2022-03-15 15:38:35,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:35,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:35,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:35,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:35,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:35,372 INFO L87 Difference]: Start difference. First operand 5195 states and 24534 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:35,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:35,558 INFO L93 Difference]: Finished difference Result 10981 states and 49355 transitions. [2022-03-15 15:38:35,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:35,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:35,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:35,591 INFO L225 Difference]: With dead ends: 10981 [2022-03-15 15:38:35,592 INFO L226 Difference]: Without dead ends: 10418 [2022-03-15 15:38:35,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:35,592 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 159 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:35,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 211 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:35,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10418 states. [2022-03-15 15:38:35,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10418 to 5095. [2022-03-15 15:38:35,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.749901845308206) internal successors, (24196), 5094 states have internal predecessors, (24196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:35,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24196 transitions. [2022-03-15 15:38:35,740 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24196 transitions. Word has length 29 [2022-03-15 15:38:35,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:35,741 INFO L470 AbstractCegarLoop]: Abstraction has 5095 states and 24196 transitions. [2022-03-15 15:38:35,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:35,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24196 transitions. [2022-03-15 15:38:35,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:35,751 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:35,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:35,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1372 [2022-03-15 15:38:35,751 INFO L402 AbstractCegarLoop]: === Iteration 1374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:35,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:35,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1208160957, now seen corresponding path program 1369 times [2022-03-15 15:38:35,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:35,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180572256] [2022-03-15 15:38:35,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:35,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:35,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:35,869 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:35,869 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180572256] [2022-03-15 15:38:35,869 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180572256] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:35,869 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:35,869 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:35,869 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650939727] [2022-03-15 15:38:35,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:35,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:35,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:35,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:35,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:35,869 INFO L87 Difference]: Start difference. First operand 5095 states and 24196 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:36,046 INFO L93 Difference]: Finished difference Result 12307 states and 55046 transitions. [2022-03-15 15:38:36,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:36,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:36,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:36,084 INFO L225 Difference]: With dead ends: 12307 [2022-03-15 15:38:36,084 INFO L226 Difference]: Without dead ends: 11765 [2022-03-15 15:38:36,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:36,085 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 178 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:36,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 206 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:36,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11765 states. [2022-03-15 15:38:36,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11765 to 5367. [2022-03-15 15:38:36,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5367 states, 5366 states have (on average 4.719530376444279) internal successors, (25325), 5366 states have internal predecessors, (25325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:36,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5367 states to 5367 states and 25325 transitions. [2022-03-15 15:38:36,249 INFO L78 Accepts]: Start accepts. Automaton has 5367 states and 25325 transitions. Word has length 29 [2022-03-15 15:38:36,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:36,249 INFO L470 AbstractCegarLoop]: Abstraction has 5367 states and 25325 transitions. [2022-03-15 15:38:36,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:36,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5367 states and 25325 transitions. [2022-03-15 15:38:36,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:36,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:36,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:36,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1373 [2022-03-15 15:38:36,260 INFO L402 AbstractCegarLoop]: === Iteration 1375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:36,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:36,260 INFO L85 PathProgramCache]: Analyzing trace with hash -2005743713, now seen corresponding path program 1370 times [2022-03-15 15:38:36,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:36,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273760211] [2022-03-15 15:38:36,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:36,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:36,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:36,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:36,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273760211] [2022-03-15 15:38:36,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273760211] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:36,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:36,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:36,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066604946] [2022-03-15 15:38:36,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:36,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:36,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:36,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:36,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:36,405 INFO L87 Difference]: Start difference. First operand 5367 states and 25325 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:36,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:36,620 INFO L93 Difference]: Finished difference Result 12242 states and 54677 transitions. [2022-03-15 15:38:36,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:36,621 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:36,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:36,657 INFO L225 Difference]: With dead ends: 12242 [2022-03-15 15:38:36,657 INFO L226 Difference]: Without dead ends: 11622 [2022-03-15 15:38:36,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:36,658 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 190 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:36,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 190 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:36,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11622 states. [2022-03-15 15:38:36,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11622 to 5224. [2022-03-15 15:38:36,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 5223 states have (on average 4.735784032165422) internal successors, (24735), 5223 states have internal predecessors, (24735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:36,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 24735 transitions. [2022-03-15 15:38:36,824 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 24735 transitions. Word has length 29 [2022-03-15 15:38:36,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:36,824 INFO L470 AbstractCegarLoop]: Abstraction has 5224 states and 24735 transitions. [2022-03-15 15:38:36,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:36,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 24735 transitions. [2022-03-15 15:38:36,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:36,834 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:36,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:36,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1374 [2022-03-15 15:38:36,834 INFO L402 AbstractCegarLoop]: === Iteration 1376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:36,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:36,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1993835843, now seen corresponding path program 1371 times [2022-03-15 15:38:36,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:36,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975464808] [2022-03-15 15:38:36,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:36,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:37,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:37,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:37,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975464808] [2022-03-15 15:38:37,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975464808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:37,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:37,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:37,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346951298] [2022-03-15 15:38:37,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:37,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:37,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:37,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:37,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:37,027 INFO L87 Difference]: Start difference. First operand 5224 states and 24735 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:37,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:37,240 INFO L93 Difference]: Finished difference Result 12272 states and 54855 transitions. [2022-03-15 15:38:37,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:37,240 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:37,281 INFO L225 Difference]: With dead ends: 12272 [2022-03-15 15:38:37,281 INFO L226 Difference]: Without dead ends: 11730 [2022-03-15 15:38:37,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:37,281 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 181 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:37,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 193 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:37,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11730 states. [2022-03-15 15:38:37,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11730 to 5334. [2022-03-15 15:38:37,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5333 states have (on average 4.714044627789237) internal successors, (25140), 5333 states have internal predecessors, (25140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:37,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 25140 transitions. [2022-03-15 15:38:37,475 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 25140 transitions. Word has length 29 [2022-03-15 15:38:37,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:37,475 INFO L470 AbstractCegarLoop]: Abstraction has 5334 states and 25140 transitions. [2022-03-15 15:38:37,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:37,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 25140 transitions. [2022-03-15 15:38:37,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:37,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:37,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:37,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1375 [2022-03-15 15:38:37,486 INFO L402 AbstractCegarLoop]: === Iteration 1377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:37,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:37,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1944268099, now seen corresponding path program 1372 times [2022-03-15 15:38:37,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:37,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635470388] [2022-03-15 15:38:37,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:37,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:37,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:37,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:37,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635470388] [2022-03-15 15:38:37,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635470388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:37,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:37,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:37,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864912672] [2022-03-15 15:38:37,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:37,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:37,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:37,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:37,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:37,639 INFO L87 Difference]: Start difference. First operand 5334 states and 25140 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:37,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:37,842 INFO L93 Difference]: Finished difference Result 12205 states and 54482 transitions. [2022-03-15 15:38:37,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:37,842 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:37,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:37,878 INFO L225 Difference]: With dead ends: 12205 [2022-03-15 15:38:37,878 INFO L226 Difference]: Without dead ends: 11620 [2022-03-15 15:38:37,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:37,878 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 178 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:37,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 203 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:37,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11620 states. [2022-03-15 15:38:38,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11620 to 5224. [2022-03-15 15:38:38,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 5223 states have (on average 4.725253685621291) internal successors, (24680), 5223 states have internal predecessors, (24680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:38,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 24680 transitions. [2022-03-15 15:38:38,037 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 24680 transitions. Word has length 29 [2022-03-15 15:38:38,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:38,038 INFO L470 AbstractCegarLoop]: Abstraction has 5224 states and 24680 transitions. [2022-03-15 15:38:38,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:38,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 24680 transitions. [2022-03-15 15:38:38,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:38,048 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:38,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:38,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1376 [2022-03-15 15:38:38,048 INFO L402 AbstractCegarLoop]: === Iteration 1378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:38,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:38,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1605830881, now seen corresponding path program 1373 times [2022-03-15 15:38:38,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:38,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795825989] [2022-03-15 15:38:38,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:38,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:38,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:38,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:38,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795825989] [2022-03-15 15:38:38,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795825989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:38,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:38,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:38,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529515274] [2022-03-15 15:38:38,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:38,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:38,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:38,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:38,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:38,197 INFO L87 Difference]: Start difference. First operand 5224 states and 24680 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:38,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:38,434 INFO L93 Difference]: Finished difference Result 12110 states and 54140 transitions. [2022-03-15 15:38:38,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:38,435 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:38,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:38,471 INFO L225 Difference]: With dead ends: 12110 [2022-03-15 15:38:38,471 INFO L226 Difference]: Without dead ends: 11633 [2022-03-15 15:38:38,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:38,472 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 162 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:38,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 204 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:38,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11633 states. [2022-03-15 15:38:38,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11633 to 5302. [2022-03-15 15:38:38,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5301 states have (on average 4.710997924919827) internal successors, (24973), 5301 states have internal predecessors, (24973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:38,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 24973 transitions. [2022-03-15 15:38:38,643 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 24973 transitions. Word has length 29 [2022-03-15 15:38:38,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:38,643 INFO L470 AbstractCegarLoop]: Abstraction has 5302 states and 24973 transitions. [2022-03-15 15:38:38,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:38,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 24973 transitions. [2022-03-15 15:38:38,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:38,654 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:38,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:38,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1377 [2022-03-15 15:38:38,654 INFO L402 AbstractCegarLoop]: === Iteration 1379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:38,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:38,655 INFO L85 PathProgramCache]: Analyzing trace with hash 573056765, now seen corresponding path program 1374 times [2022-03-15 15:38:38,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:38,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232621890] [2022-03-15 15:38:38,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:38,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:38,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:38,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232621890] [2022-03-15 15:38:38,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232621890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:38,851 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:38,851 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:38,851 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738655487] [2022-03-15 15:38:38,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:38,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:38,851 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:38,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:38,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:38,851 INFO L87 Difference]: Start difference. First operand 5302 states and 24973 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:39,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:39,097 INFO L93 Difference]: Finished difference Result 12108 states and 54057 transitions. [2022-03-15 15:38:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:39,097 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:39,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:39,133 INFO L225 Difference]: With dead ends: 12108 [2022-03-15 15:38:39,134 INFO L226 Difference]: Without dead ends: 11468 [2022-03-15 15:38:39,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:39,134 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 147 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:39,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 227 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:39,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11468 states. [2022-03-15 15:38:39,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11468 to 5137. [2022-03-15 15:38:39,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.744353582554517) internal successors, (24367), 5136 states have internal predecessors, (24367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:39,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24367 transitions. [2022-03-15 15:38:39,304 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24367 transitions. Word has length 29 [2022-03-15 15:38:39,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:39,304 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24367 transitions. [2022-03-15 15:38:39,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:39,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24367 transitions. [2022-03-15 15:38:39,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:39,314 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:39,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:39,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1378 [2022-03-15 15:38:39,314 INFO L402 AbstractCegarLoop]: === Iteration 1380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:39,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:39,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1693131675, now seen corresponding path program 1375 times [2022-03-15 15:38:39,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:39,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063994442] [2022-03-15 15:38:39,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:39,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:39,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:39,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063994442] [2022-03-15 15:38:39,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063994442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:39,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:39,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:39,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762117875] [2022-03-15 15:38:39,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:39,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:39,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:39,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:39,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:39,514 INFO L87 Difference]: Start difference. First operand 5137 states and 24367 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:39,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:39,739 INFO L93 Difference]: Finished difference Result 12121 states and 54227 transitions. [2022-03-15 15:38:39,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:39,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:39,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:39,779 INFO L225 Difference]: With dead ends: 12121 [2022-03-15 15:38:39,779 INFO L226 Difference]: Without dead ends: 11579 [2022-03-15 15:38:39,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:39,779 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 163 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:39,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 211 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11579 states. [2022-03-15 15:38:39,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11579 to 5348. [2022-03-15 15:38:39,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5348 states, 5347 states have (on average 4.717037591172621) internal successors, (25222), 5347 states have internal predecessors, (25222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5348 states to 5348 states and 25222 transitions. [2022-03-15 15:38:39,959 INFO L78 Accepts]: Start accepts. Automaton has 5348 states and 25222 transitions. Word has length 29 [2022-03-15 15:38:39,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:39,959 INFO L470 AbstractCegarLoop]: Abstraction has 5348 states and 25222 transitions. [2022-03-15 15:38:39,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:39,959 INFO L276 IsEmpty]: Start isEmpty. Operand 5348 states and 25222 transitions. [2022-03-15 15:38:39,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:39,969 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:39,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:39,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1379 [2022-03-15 15:38:39,969 INFO L402 AbstractCegarLoop]: === Iteration 1381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:39,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:39,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1520772995, now seen corresponding path program 1376 times [2022-03-15 15:38:39,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:39,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595566403] [2022-03-15 15:38:39,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:39,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:40,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:40,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:40,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595566403] [2022-03-15 15:38:40,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595566403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:40,167 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:40,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:40,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824127926] [2022-03-15 15:38:40,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:40,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:40,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:40,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:40,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:40,167 INFO L87 Difference]: Start difference. First operand 5348 states and 25222 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:40,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:40,415 INFO L93 Difference]: Finished difference Result 12056 states and 53858 transitions. [2022-03-15 15:38:40,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:40,415 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:40,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:40,451 INFO L225 Difference]: With dead ends: 12056 [2022-03-15 15:38:40,451 INFO L226 Difference]: Without dead ends: 11436 [2022-03-15 15:38:40,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:40,451 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 161 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:40,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 215 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:40,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11436 states. [2022-03-15 15:38:40,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11436 to 5205. [2022-03-15 15:38:40,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 4.733858570330515) internal successors, (24635), 5204 states have internal predecessors, (24635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:40,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 24635 transitions. [2022-03-15 15:38:40,610 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 24635 transitions. Word has length 29 [2022-03-15 15:38:40,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:40,610 INFO L470 AbstractCegarLoop]: Abstraction has 5205 states and 24635 transitions. [2022-03-15 15:38:40,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:40,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 24635 transitions. [2022-03-15 15:38:40,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:40,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:40,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:40,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1380 [2022-03-15 15:38:40,620 INFO L402 AbstractCegarLoop]: === Iteration 1382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:40,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:40,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1668007235, now seen corresponding path program 1377 times [2022-03-15 15:38:40,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:40,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51474133] [2022-03-15 15:38:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:40,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:40,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:40,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51474133] [2022-03-15 15:38:40,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51474133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:40,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:40,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:40,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130417970] [2022-03-15 15:38:40,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:40,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:40,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:40,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:40,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:40,737 INFO L87 Difference]: Start difference. First operand 5205 states and 24635 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:40,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:40,902 INFO L93 Difference]: Finished difference Result 11845 states and 53049 transitions. [2022-03-15 15:38:40,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:40,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:40,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:40,939 INFO L225 Difference]: With dead ends: 11845 [2022-03-15 15:38:40,939 INFO L226 Difference]: Without dead ends: 11303 [2022-03-15 15:38:40,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:40,939 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 171 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:40,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 218 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:40,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11303 states. [2022-03-15 15:38:41,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11303 to 5309. [2022-03-15 15:38:41,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5309 states, 5308 states have (on average 4.714204973624717) internal successors, (25023), 5308 states have internal predecessors, (25023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:41,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 25023 transitions. [2022-03-15 15:38:41,093 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 25023 transitions. Word has length 29 [2022-03-15 15:38:41,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:41,093 INFO L470 AbstractCegarLoop]: Abstraction has 5309 states and 25023 transitions. [2022-03-15 15:38:41,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:41,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 25023 transitions. [2022-03-15 15:38:41,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:41,103 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:41,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:41,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1381 [2022-03-15 15:38:41,103 INFO L402 AbstractCegarLoop]: === Iteration 1383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:41,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:41,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1857188541, now seen corresponding path program 1378 times [2022-03-15 15:38:41,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:41,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887475983] [2022-03-15 15:38:41,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:41,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:41,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:41,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:41,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887475983] [2022-03-15 15:38:41,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887475983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:41,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:41,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:41,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432023766] [2022-03-15 15:38:41,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:41,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:41,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:41,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:41,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:41,210 INFO L87 Difference]: Start difference. First operand 5309 states and 25023 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:41,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:41,375 INFO L93 Difference]: Finished difference Result 11446 states and 51457 transitions. [2022-03-15 15:38:41,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:41,375 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:41,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:41,409 INFO L225 Difference]: With dead ends: 11446 [2022-03-15 15:38:41,409 INFO L226 Difference]: Without dead ends: 10879 [2022-03-15 15:38:41,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:41,410 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 154 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:41,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 211 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:41,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10879 states. [2022-03-15 15:38:41,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10879 to 5205. [2022-03-15 15:38:41,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 4.723866256725596) internal successors, (24583), 5204 states have internal predecessors, (24583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:41,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 24583 transitions. [2022-03-15 15:38:41,554 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 24583 transitions. Word has length 29 [2022-03-15 15:38:41,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:41,554 INFO L470 AbstractCegarLoop]: Abstraction has 5205 states and 24583 transitions. [2022-03-15 15:38:41,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:41,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 24583 transitions. [2022-03-15 15:38:41,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:41,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:41,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:41,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1382 [2022-03-15 15:38:41,564 INFO L402 AbstractCegarLoop]: === Iteration 1384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:41,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:41,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1280002273, now seen corresponding path program 1379 times [2022-03-15 15:38:41,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:41,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475769023] [2022-03-15 15:38:41,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:41,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:41,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:41,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:41,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475769023] [2022-03-15 15:38:41,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475769023] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:41,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:41,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:41,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679233638] [2022-03-15 15:38:41,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:41,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:41,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:41,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:41,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:41,672 INFO L87 Difference]: Start difference. First operand 5205 states and 24583 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:41,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:41,834 INFO L93 Difference]: Finished difference Result 11748 states and 52595 transitions. [2022-03-15 15:38:41,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:41,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:41,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:41,871 INFO L225 Difference]: With dead ends: 11748 [2022-03-15 15:38:41,871 INFO L226 Difference]: Without dead ends: 11271 [2022-03-15 15:38:41,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:41,871 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 182 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:41,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 201 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:41,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11271 states. [2022-03-15 15:38:41,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11271 to 5277. [2022-03-15 15:38:42,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 4.711713419257013) internal successors, (24859), 5276 states have internal predecessors, (24859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:42,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 24859 transitions. [2022-03-15 15:38:42,022 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 24859 transitions. Word has length 29 [2022-03-15 15:38:42,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:42,022 INFO L470 AbstractCegarLoop]: Abstraction has 5277 states and 24859 transitions. [2022-03-15 15:38:42,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:42,022 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 24859 transitions. [2022-03-15 15:38:42,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:42,032 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:42,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:42,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1383 [2022-03-15 15:38:42,032 INFO L402 AbstractCegarLoop]: === Iteration 1385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:42,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:42,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1639680003, now seen corresponding path program 1380 times [2022-03-15 15:38:42,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:42,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348085366] [2022-03-15 15:38:42,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:42,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:42,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:42,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348085366] [2022-03-15 15:38:42,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348085366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:42,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:42,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:42,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690413708] [2022-03-15 15:38:42,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:42,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:42,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:42,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:42,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:42,161 INFO L87 Difference]: Start difference. First operand 5277 states and 24859 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:42,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:42,334 INFO L93 Difference]: Finished difference Result 11414 states and 51293 transitions. [2022-03-15 15:38:42,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:42,334 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:42,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:42,369 INFO L225 Difference]: With dead ends: 11414 [2022-03-15 15:38:42,369 INFO L226 Difference]: Without dead ends: 10811 [2022-03-15 15:38:42,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:42,369 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 178 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:42,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 190 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:42,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10811 states. [2022-03-15 15:38:42,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10811 to 5137. [2022-03-15 15:38:42,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.737733644859813) internal successors, (24333), 5136 states have internal predecessors, (24333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:42,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24333 transitions. [2022-03-15 15:38:42,520 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24333 transitions. Word has length 29 [2022-03-15 15:38:42,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:42,520 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24333 transitions. [2022-03-15 15:38:42,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:42,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24333 transitions. [2022-03-15 15:38:42,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:42,531 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:42,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:42,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1384 [2022-03-15 15:38:42,531 INFO L402 AbstractCegarLoop]: === Iteration 1386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:42,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:42,531 INFO L85 PathProgramCache]: Analyzing trace with hash 2110636733, now seen corresponding path program 1381 times [2022-03-15 15:38:42,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:42,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793122057] [2022-03-15 15:38:42,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:42,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:42,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:42,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793122057] [2022-03-15 15:38:42,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793122057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:42,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:42,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:42,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458802908] [2022-03-15 15:38:42,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:42,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:42,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:42,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:42,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:42,640 INFO L87 Difference]: Start difference. First operand 5137 states and 24333 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:42,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:42,836 INFO L93 Difference]: Finished difference Result 12068 states and 54004 transitions. [2022-03-15 15:38:42,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:42,836 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:42,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:42,872 INFO L225 Difference]: With dead ends: 12068 [2022-03-15 15:38:42,872 INFO L226 Difference]: Without dead ends: 11526 [2022-03-15 15:38:42,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:42,872 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 159 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:42,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 213 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:42,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11526 states. [2022-03-15 15:38:43,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11526 to 5299. [2022-03-15 15:38:43,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 4.720649301623254) internal successors, (25010), 5298 states have internal predecessors, (25010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:43,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 25010 transitions. [2022-03-15 15:38:43,027 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 25010 transitions. Word has length 29 [2022-03-15 15:38:43,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:43,028 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 25010 transitions. [2022-03-15 15:38:43,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:43,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 25010 transitions. [2022-03-15 15:38:43,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:43,038 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:43,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:43,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1385 [2022-03-15 15:38:43,038 INFO L402 AbstractCegarLoop]: === Iteration 1387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:43,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:43,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2134762819, now seen corresponding path program 1382 times [2022-03-15 15:38:43,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:43,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369386098] [2022-03-15 15:38:43,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:43,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:43,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:43,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:43,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369386098] [2022-03-15 15:38:43,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369386098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:43,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:43,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:43,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714886090] [2022-03-15 15:38:43,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:43,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:43,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:43,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:43,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:43,207 INFO L87 Difference]: Start difference. First operand 5299 states and 25010 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:43,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:43,428 INFO L93 Difference]: Finished difference Result 12001 states and 53631 transitions. [2022-03-15 15:38:43,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:43,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:43,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:43,466 INFO L225 Difference]: With dead ends: 12001 [2022-03-15 15:38:43,467 INFO L226 Difference]: Without dead ends: 11416 [2022-03-15 15:38:43,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:43,467 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 174 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:43,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 207 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:43,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2022-03-15 15:38:43,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 5189. [2022-03-15 15:38:43,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.732652274479568) internal successors, (24553), 5188 states have internal predecessors, (24553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:43,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24553 transitions. [2022-03-15 15:38:43,668 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24553 transitions. Word has length 29 [2022-03-15 15:38:43,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:43,668 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24553 transitions. [2022-03-15 15:38:43,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:43,668 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24553 transitions. [2022-03-15 15:38:43,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:43,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:43,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:43,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1386 [2022-03-15 15:38:43,681 INFO L402 AbstractCegarLoop]: === Iteration 1388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:43,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:43,681 INFO L85 PathProgramCache]: Analyzing trace with hash 77624091, now seen corresponding path program 1383 times [2022-03-15 15:38:43,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:43,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017842854] [2022-03-15 15:38:43,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:43,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:43,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:43,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:43,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017842854] [2022-03-15 15:38:43,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017842854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:43,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:43,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:43,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981600446] [2022-03-15 15:38:43,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:43,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:43,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:43,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:43,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:43,813 INFO L87 Difference]: Start difference. First operand 5189 states and 24553 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:43,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:43,977 INFO L93 Difference]: Finished difference Result 11827 states and 52962 transitions. [2022-03-15 15:38:43,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:43,977 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:43,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:44,014 INFO L225 Difference]: With dead ends: 11827 [2022-03-15 15:38:44,014 INFO L226 Difference]: Without dead ends: 11285 [2022-03-15 15:38:44,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:44,014 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 159 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:44,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 211 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:44,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11285 states. [2022-03-15 15:38:44,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11285 to 5293. [2022-03-15 15:38:44,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 5292 states have (on average 4.712962962962963) internal successors, (24941), 5292 states have internal predecessors, (24941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:44,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 24941 transitions. [2022-03-15 15:38:44,169 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 24941 transitions. Word has length 29 [2022-03-15 15:38:44,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:44,170 INFO L470 AbstractCegarLoop]: Abstraction has 5293 states and 24941 transitions. [2022-03-15 15:38:44,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:44,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 24941 transitions. [2022-03-15 15:38:44,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:44,180 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:44,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:44,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1387 [2022-03-15 15:38:44,181 INFO L402 AbstractCegarLoop]: === Iteration 1389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:44,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:44,181 INFO L85 PathProgramCache]: Analyzing trace with hash -65152323, now seen corresponding path program 1384 times [2022-03-15 15:38:44,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:44,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425236061] [2022-03-15 15:38:44,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:44,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:44,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:44,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:44,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425236061] [2022-03-15 15:38:44,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425236061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:44,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:44,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:44,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239422401] [2022-03-15 15:38:44,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:44,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:44,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:44,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:44,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:44,294 INFO L87 Difference]: Start difference. First operand 5293 states and 24941 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:44,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:44,477 INFO L93 Difference]: Finished difference Result 11428 states and 51370 transitions. [2022-03-15 15:38:44,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:44,478 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:44,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:44,512 INFO L225 Difference]: With dead ends: 11428 [2022-03-15 15:38:44,512 INFO L226 Difference]: Without dead ends: 10861 [2022-03-15 15:38:44,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:44,513 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 164 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:44,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 227 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:44,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2022-03-15 15:38:44,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 5189. [2022-03-15 15:38:44,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.722629144178875) internal successors, (24501), 5188 states have internal predecessors, (24501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:44,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24501 transitions. [2022-03-15 15:38:44,667 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24501 transitions. Word has length 29 [2022-03-15 15:38:44,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:44,667 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24501 transitions. [2022-03-15 15:38:44,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:44,668 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24501 transitions. [2022-03-15 15:38:44,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:44,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:44,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:44,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1388 [2022-03-15 15:38:44,678 INFO L402 AbstractCegarLoop]: === Iteration 1390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:44,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:44,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1144148669, now seen corresponding path program 1385 times [2022-03-15 15:38:44,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:44,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324202818] [2022-03-15 15:38:44,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:44,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:44,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:44,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:44,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324202818] [2022-03-15 15:38:44,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324202818] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:44,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:44,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:44,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434603035] [2022-03-15 15:38:44,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:44,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:44,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:44,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:44,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:44,789 INFO L87 Difference]: Start difference. First operand 5189 states and 24501 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:44,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:44,968 INFO L93 Difference]: Finished difference Result 11728 states and 52503 transitions. [2022-03-15 15:38:44,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:44,968 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:44,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:45,005 INFO L225 Difference]: With dead ends: 11728 [2022-03-15 15:38:45,006 INFO L226 Difference]: Without dead ends: 11253 [2022-03-15 15:38:45,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:45,006 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 157 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:45,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 217 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:45,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11253 states. [2022-03-15 15:38:45,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11253 to 5261. [2022-03-15 15:38:45,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 4.710456273764258) internal successors, (24777), 5260 states have internal predecessors, (24777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:45,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 24777 transitions. [2022-03-15 15:38:45,169 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 24777 transitions. Word has length 29 [2022-03-15 15:38:45,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:45,169 INFO L470 AbstractCegarLoop]: Abstraction has 5261 states and 24777 transitions. [2022-03-15 15:38:45,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:45,169 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 24777 transitions. [2022-03-15 15:38:45,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:45,179 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:45,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:45,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1389 [2022-03-15 15:38:45,180 INFO L402 AbstractCegarLoop]: === Iteration 1391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:45,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:45,180 INFO L85 PathProgramCache]: Analyzing trace with hash -971930981, now seen corresponding path program 1386 times [2022-03-15 15:38:45,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:45,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731065342] [2022-03-15 15:38:45,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:45,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:45,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:45,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:45,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731065342] [2022-03-15 15:38:45,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731065342] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:45,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:45,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:45,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869459305] [2022-03-15 15:38:45,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:45,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:45,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:45,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:45,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:45,298 INFO L87 Difference]: Start difference. First operand 5261 states and 24777 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:45,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:45,463 INFO L93 Difference]: Finished difference Result 11396 states and 51206 transitions. [2022-03-15 15:38:45,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:45,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:45,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:45,498 INFO L225 Difference]: With dead ends: 11396 [2022-03-15 15:38:45,498 INFO L226 Difference]: Without dead ends: 10809 [2022-03-15 15:38:45,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:45,498 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 171 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:45,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 192 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:45,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2022-03-15 15:38:45,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 5137. [2022-03-15 15:38:45,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.732671339563863) internal successors, (24307), 5136 states have internal predecessors, (24307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:45,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24307 transitions. [2022-03-15 15:38:45,660 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24307 transitions. Word has length 29 [2022-03-15 15:38:45,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:45,660 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24307 transitions. [2022-03-15 15:38:45,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:45,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24307 transitions. [2022-03-15 15:38:45,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:45,671 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:45,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:45,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1390 [2022-03-15 15:38:45,671 INFO L402 AbstractCegarLoop]: === Iteration 1392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:45,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:45,671 INFO L85 PathProgramCache]: Analyzing trace with hash -2104809825, now seen corresponding path program 1387 times [2022-03-15 15:38:45,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:45,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669687756] [2022-03-15 15:38:45,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:45,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:45,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:45,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:45,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669687756] [2022-03-15 15:38:45,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669687756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:45,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:45,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:45,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242030901] [2022-03-15 15:38:45,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:45,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:45,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:45,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:45,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:45,830 INFO L87 Difference]: Start difference. First operand 5137 states and 24307 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:46,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:46,000 INFO L93 Difference]: Finished difference Result 11793 states and 52836 transitions. [2022-03-15 15:38:46,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:46,000 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:46,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:46,038 INFO L225 Difference]: With dead ends: 11793 [2022-03-15 15:38:46,038 INFO L226 Difference]: Without dead ends: 11316 [2022-03-15 15:38:46,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:46,039 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 167 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:46,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 220 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:46,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11316 states. [2022-03-15 15:38:46,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11316 to 5251. [2022-03-15 15:38:46,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.722285714285714) internal successors, (24792), 5250 states have internal predecessors, (24792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:46,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24792 transitions. [2022-03-15 15:38:46,208 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24792 transitions. Word has length 29 [2022-03-15 15:38:46,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:46,208 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24792 transitions. [2022-03-15 15:38:46,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:46,208 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24792 transitions. [2022-03-15 15:38:46,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:46,219 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:46,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:46,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1391 [2022-03-15 15:38:46,219 INFO L402 AbstractCegarLoop]: === Iteration 1393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:46,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:46,219 INFO L85 PathProgramCache]: Analyzing trace with hash 74077821, now seen corresponding path program 1388 times [2022-03-15 15:38:46,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:46,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315559029] [2022-03-15 15:38:46,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:46,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:46,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:46,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:46,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315559029] [2022-03-15 15:38:46,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315559029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:46,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:46,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:46,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368057348] [2022-03-15 15:38:46,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:46,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:46,339 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:46,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:46,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:46,339 INFO L87 Difference]: Start difference. First operand 5251 states and 24792 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:46,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:46,523 INFO L93 Difference]: Finished difference Result 11791 states and 52753 transitions. [2022-03-15 15:38:46,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:46,524 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:46,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:46,562 INFO L225 Difference]: With dead ends: 11791 [2022-03-15 15:38:46,562 INFO L226 Difference]: Without dead ends: 11238 [2022-03-15 15:38:46,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:46,562 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 161 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:46,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 205 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:46,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11238 states. [2022-03-15 15:38:46,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11238 to 5173. [2022-03-15 15:38:46,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.729891724671307) internal successors, (24463), 5172 states have internal predecessors, (24463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:46,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24463 transitions. [2022-03-15 15:38:46,760 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24463 transitions. Word has length 29 [2022-03-15 15:38:46,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:46,761 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24463 transitions. [2022-03-15 15:38:46,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:46,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24463 transitions. [2022-03-15 15:38:46,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:46,771 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:46,771 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:46,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1392 [2022-03-15 15:38:46,771 INFO L402 AbstractCegarLoop]: === Iteration 1394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:46,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:46,772 INFO L85 PathProgramCache]: Analyzing trace with hash 157144829, now seen corresponding path program 1389 times [2022-03-15 15:38:46,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:46,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978675107] [2022-03-15 15:38:46,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:46,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:46,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:46,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978675107] [2022-03-15 15:38:46,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978675107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:46,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:46,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:46,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033107612] [2022-03-15 15:38:46,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:46,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:46,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:46,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:46,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:46,874 INFO L87 Difference]: Start difference. First operand 5173 states and 24463 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:47,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:47,053 INFO L93 Difference]: Finished difference Result 11617 states and 52068 transitions. [2022-03-15 15:38:47,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:47,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:47,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:47,088 INFO L225 Difference]: With dead ends: 11617 [2022-03-15 15:38:47,089 INFO L226 Difference]: Without dead ends: 11140 [2022-03-15 15:38:47,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:47,089 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 163 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:47,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 208 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:47,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11140 states. [2022-03-15 15:38:47,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11140 to 5245. [2022-03-15 15:38:47,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.717581998474447) internal successors, (24739), 5244 states have internal predecessors, (24739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:47,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24739 transitions. [2022-03-15 15:38:47,245 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24739 transitions. Word has length 29 [2022-03-15 15:38:47,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:47,245 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 24739 transitions. [2022-03-15 15:38:47,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:47,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24739 transitions. [2022-03-15 15:38:47,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:47,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:47,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:47,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1393 [2022-03-15 15:38:47,255 INFO L402 AbstractCegarLoop]: === Iteration 1395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:47,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:47,256 INFO L85 PathProgramCache]: Analyzing trace with hash 424462205, now seen corresponding path program 1390 times [2022-03-15 15:38:47,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:47,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113146967] [2022-03-15 15:38:47,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:47,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:47,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:47,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:47,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113146967] [2022-03-15 15:38:47,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113146967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:47,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:47,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:47,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680808746] [2022-03-15 15:38:47,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:47,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:47,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:47,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:47,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:47,408 INFO L87 Difference]: Start difference. First operand 5245 states and 24739 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:47,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:47,610 INFO L93 Difference]: Finished difference Result 11283 states and 50766 transitions. [2022-03-15 15:38:47,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:47,610 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:47,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:47,647 INFO L225 Difference]: With dead ends: 11283 [2022-03-15 15:38:47,648 INFO L226 Difference]: Without dead ends: 10748 [2022-03-15 15:38:47,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:47,648 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 174 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:47,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 184 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10748 states. [2022-03-15 15:38:47,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10748 to 5173. [2022-03-15 15:38:47,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5173 states, 5172 states have (on average 4.72293116782676) internal successors, (24427), 5172 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:47,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5173 states to 5173 states and 24427 transitions. [2022-03-15 15:38:47,806 INFO L78 Accepts]: Start accepts. Automaton has 5173 states and 24427 transitions. Word has length 29 [2022-03-15 15:38:47,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:47,806 INFO L470 AbstractCegarLoop]: Abstraction has 5173 states and 24427 transitions. [2022-03-15 15:38:47,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:47,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5173 states and 24427 transitions. [2022-03-15 15:38:47,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:47,817 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:47,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:47,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1394 [2022-03-15 15:38:47,817 INFO L402 AbstractCegarLoop]: === Iteration 1396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:47,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:47,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1978837029, now seen corresponding path program 1391 times [2022-03-15 15:38:47,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:47,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157969280] [2022-03-15 15:38:47,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:47,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:47,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:47,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:47,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157969280] [2022-03-15 15:38:47,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157969280] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:47,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:47,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:47,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206578854] [2022-03-15 15:38:47,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:47,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:47,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:47,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:47,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:47,972 INFO L87 Difference]: Start difference. First operand 5173 states and 24427 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:48,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:48,195 INFO L93 Difference]: Finished difference Result 11615 states and 52027 transitions. [2022-03-15 15:38:48,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:48,195 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:48,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:48,231 INFO L225 Difference]: With dead ends: 11615 [2022-03-15 15:38:48,232 INFO L226 Difference]: Without dead ends: 11140 [2022-03-15 15:38:48,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:48,232 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 165 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:48,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 201 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:48,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11140 states. [2022-03-15 15:38:48,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11140 to 5245. [2022-03-15 15:38:48,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.710717009916094) internal successors, (24703), 5244 states have internal predecessors, (24703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:48,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24703 transitions. [2022-03-15 15:38:48,392 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24703 transitions. Word has length 29 [2022-03-15 15:38:48,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:48,392 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 24703 transitions. [2022-03-15 15:38:48,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:48,392 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24703 transitions. [2022-03-15 15:38:48,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:48,402 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:48,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:48,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1395 [2022-03-15 15:38:48,403 INFO L402 AbstractCegarLoop]: === Iteration 1397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:48,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:48,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1142170557, now seen corresponding path program 1392 times [2022-03-15 15:38:48,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:48,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640794871] [2022-03-15 15:38:48,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:48,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:48,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:48,527 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:48,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640794871] [2022-03-15 15:38:48,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640794871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:48,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:48,527 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:48,527 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103476842] [2022-03-15 15:38:48,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:48,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:48,527 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:48,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:48,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:48,527 INFO L87 Difference]: Start difference. First operand 5245 states and 24703 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:48,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:48,702 INFO L93 Difference]: Finished difference Result 11283 states and 50730 transitions. [2022-03-15 15:38:48,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:48,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:48,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:48,746 INFO L225 Difference]: With dead ends: 11283 [2022-03-15 15:38:48,746 INFO L226 Difference]: Without dead ends: 10670 [2022-03-15 15:38:48,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:48,747 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 152 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:48,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 195 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:48,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-03-15 15:38:48,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 5095. [2022-03-15 15:38:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.746368276403612) internal successors, (24178), 5094 states have internal predecessors, (24178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:48,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24178 transitions. [2022-03-15 15:38:48,897 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24178 transitions. Word has length 29 [2022-03-15 15:38:48,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:48,897 INFO L470 AbstractCegarLoop]: Abstraction has 5095 states and 24178 transitions. [2022-03-15 15:38:48,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:48,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24178 transitions. [2022-03-15 15:38:48,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:48,907 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:48,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:48,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1396 [2022-03-15 15:38:48,907 INFO L402 AbstractCegarLoop]: === Iteration 1398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:48,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:48,907 INFO L85 PathProgramCache]: Analyzing trace with hash 318178847, now seen corresponding path program 1393 times [2022-03-15 15:38:48,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:48,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394071011] [2022-03-15 15:38:48,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:48,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:49,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:49,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:49,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394071011] [2022-03-15 15:38:49,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394071011] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:49,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:49,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:49,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22519047] [2022-03-15 15:38:49,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:49,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:49,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:49,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:49,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:49,068 INFO L87 Difference]: Start difference. First operand 5095 states and 24178 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:49,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:49,262 INFO L93 Difference]: Finished difference Result 11739 states and 52523 transitions. [2022-03-15 15:38:49,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:49,263 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:49,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:49,299 INFO L225 Difference]: With dead ends: 11739 [2022-03-15 15:38:49,300 INFO L226 Difference]: Without dead ends: 11197 [2022-03-15 15:38:49,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:49,300 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 166 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:49,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 207 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:49,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11197 states. [2022-03-15 15:38:49,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11197 to 5235. [2022-03-15 15:38:49,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.734810852120749) internal successors, (24782), 5234 states have internal predecessors, (24782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:49,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24782 transitions. [2022-03-15 15:38:49,473 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24782 transitions. Word has length 29 [2022-03-15 15:38:49,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:49,473 INFO L470 AbstractCegarLoop]: Abstraction has 5235 states and 24782 transitions. [2022-03-15 15:38:49,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:49,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24782 transitions. [2022-03-15 15:38:49,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:49,484 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:49,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:49,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1397 [2022-03-15 15:38:49,484 INFO L402 AbstractCegarLoop]: === Iteration 1399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:49,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:49,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1370067425, now seen corresponding path program 1394 times [2022-03-15 15:38:49,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:49,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117864015] [2022-03-15 15:38:49,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:49,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:49,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:49,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:49,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117864015] [2022-03-15 15:38:49,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117864015] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:49,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:49,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:49,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776942181] [2022-03-15 15:38:49,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:49,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:49,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:49,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:49,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:49,600 INFO L87 Difference]: Start difference. First operand 5235 states and 24782 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:49,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:49,767 INFO L93 Difference]: Finished difference Result 11612 states and 51916 transitions. [2022-03-15 15:38:49,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:49,767 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:49,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:49,801 INFO L225 Difference]: With dead ends: 11612 [2022-03-15 15:38:49,801 INFO L226 Difference]: Without dead ends: 11117 [2022-03-15 15:38:49,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:49,801 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 160 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:49,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 227 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:49,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11117 states. [2022-03-15 15:38:49,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11117 to 5155. [2022-03-15 15:38:49,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.744664338377959) internal successors, (24454), 5154 states have internal predecessors, (24454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:49,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24454 transitions. [2022-03-15 15:38:49,944 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24454 transitions. Word has length 29 [2022-03-15 15:38:49,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:49,944 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24454 transitions. [2022-03-15 15:38:49,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:49,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24454 transitions. [2022-03-15 15:38:49,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:49,953 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:49,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:49,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1398 [2022-03-15 15:38:49,954 INFO L402 AbstractCegarLoop]: === Iteration 1400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:49,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:49,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1704882691, now seen corresponding path program 1395 times [2022-03-15 15:38:49,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:49,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483753590] [2022-03-15 15:38:49,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:49,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:50,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:50,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483753590] [2022-03-15 15:38:50,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483753590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:50,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:50,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:50,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159219407] [2022-03-15 15:38:50,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:50,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:50,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:50,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:50,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:50,069 INFO L87 Difference]: Start difference. First operand 5155 states and 24454 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:50,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:50,253 INFO L93 Difference]: Finished difference Result 11829 states and 52894 transitions. [2022-03-15 15:38:50,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:50,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:50,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:50,294 INFO L225 Difference]: With dead ends: 11829 [2022-03-15 15:38:50,295 INFO L226 Difference]: Without dead ends: 11287 [2022-03-15 15:38:50,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:50,295 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 174 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:50,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 205 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:50,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11287 states. [2022-03-15 15:38:50,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11287 to 5265. [2022-03-15 15:38:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5265 states, 5264 states have (on average 4.7224544072948325) internal successors, (24859), 5264 states have internal predecessors, (24859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:50,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5265 states to 5265 states and 24859 transitions. [2022-03-15 15:38:50,448 INFO L78 Accepts]: Start accepts. Automaton has 5265 states and 24859 transitions. Word has length 29 [2022-03-15 15:38:50,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:50,448 INFO L470 AbstractCegarLoop]: Abstraction has 5265 states and 24859 transitions. [2022-03-15 15:38:50,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:50,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5265 states and 24859 transitions. [2022-03-15 15:38:50,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:50,458 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:50,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:50,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1399 [2022-03-15 15:38:50,459 INFO L402 AbstractCegarLoop]: === Iteration 1401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:50,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:50,459 INFO L85 PathProgramCache]: Analyzing trace with hash -335262177, now seen corresponding path program 1396 times [2022-03-15 15:38:50,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:50,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162627814] [2022-03-15 15:38:50,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:50,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:50,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:50,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:50,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162627814] [2022-03-15 15:38:50,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162627814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:50,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:50,569 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:50,569 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841271596] [2022-03-15 15:38:50,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:50,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:50,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:50,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:50,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:50,569 INFO L87 Difference]: Start difference. First operand 5265 states and 24859 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:50,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:50,741 INFO L93 Difference]: Finished difference Result 11762 states and 52521 transitions. [2022-03-15 15:38:50,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:50,742 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:50,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:50,777 INFO L225 Difference]: With dead ends: 11762 [2022-03-15 15:38:50,777 INFO L226 Difference]: Without dead ends: 11177 [2022-03-15 15:38:50,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:50,777 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:50,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 215 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:50,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11177 states. [2022-03-15 15:38:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11177 to 5155. [2022-03-15 15:38:50,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.736903376018626) internal successors, (24414), 5154 states have internal predecessors, (24414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24414 transitions. [2022-03-15 15:38:50,934 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24414 transitions. Word has length 29 [2022-03-15 15:38:50,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:50,934 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24414 transitions. [2022-03-15 15:38:50,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:50,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24414 transitions. [2022-03-15 15:38:50,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:50,945 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:50,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:50,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1400 [2022-03-15 15:38:50,945 INFO L402 AbstractCegarLoop]: === Iteration 1402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:50,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:50,946 INFO L85 PathProgramCache]: Analyzing trace with hash -980105697, now seen corresponding path program 1397 times [2022-03-15 15:38:50,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:50,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344265955] [2022-03-15 15:38:50,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:50,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:51,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:51,059 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:51,059 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344265955] [2022-03-15 15:38:51,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344265955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:51,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:51,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:51,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890372783] [2022-03-15 15:38:51,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:51,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:51,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:51,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:51,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:51,060 INFO L87 Difference]: Start difference. First operand 5155 states and 24414 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:51,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:51,219 INFO L93 Difference]: Finished difference Result 11513 states and 51509 transitions. [2022-03-15 15:38:51,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:51,219 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:51,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:51,255 INFO L225 Difference]: With dead ends: 11513 [2022-03-15 15:38:51,256 INFO L226 Difference]: Without dead ends: 11098 [2022-03-15 15:38:51,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:51,256 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 165 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:51,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 200 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:51,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11098 states. [2022-03-15 15:38:51,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11098 to 5203. [2022-03-15 15:38:51,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.727028066128412) internal successors, (24590), 5202 states have internal predecessors, (24590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:51,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24590 transitions. [2022-03-15 15:38:51,420 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24590 transitions. Word has length 29 [2022-03-15 15:38:51,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:51,420 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24590 transitions. [2022-03-15 15:38:51,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:51,420 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24590 transitions. [2022-03-15 15:38:51,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:51,431 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:51,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:51,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1401 [2022-03-15 15:38:51,431 INFO L402 AbstractCegarLoop]: === Iteration 1403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:51,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:51,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1826902659, now seen corresponding path program 1398 times [2022-03-15 15:38:51,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:51,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097087779] [2022-03-15 15:38:51,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:51,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:51,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:51,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:51,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097087779] [2022-03-15 15:38:51,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097087779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:51,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:51,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:51,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598494661] [2022-03-15 15:38:51,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:51,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:51,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:51,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:51,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:51,606 INFO L87 Difference]: Start difference. First operand 5203 states and 24590 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:51,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:51,858 INFO L93 Difference]: Finished difference Result 11573 states and 51725 transitions. [2022-03-15 15:38:51,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:51,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:51,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:51,893 INFO L225 Difference]: With dead ends: 11573 [2022-03-15 15:38:51,893 INFO L226 Difference]: Without dead ends: 11010 [2022-03-15 15:38:51,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:51,893 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 141 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:51,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 276 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:38:51,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-03-15 15:38:52,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 5115. [2022-03-15 15:38:52,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.745795854517012) internal successors, (24270), 5114 states have internal predecessors, (24270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:52,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24270 transitions. [2022-03-15 15:38:52,045 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24270 transitions. Word has length 29 [2022-03-15 15:38:52,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:52,045 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24270 transitions. [2022-03-15 15:38:52,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:52,045 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24270 transitions. [2022-03-15 15:38:52,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:52,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:52,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:52,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1402 [2022-03-15 15:38:52,056 INFO L402 AbstractCegarLoop]: === Iteration 1404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:52,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:52,056 INFO L85 PathProgramCache]: Analyzing trace with hash 803149565, now seen corresponding path program 1399 times [2022-03-15 15:38:52,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:52,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320401818] [2022-03-15 15:38:52,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:52,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:52,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:52,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:52,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320401818] [2022-03-15 15:38:52,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320401818] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:52,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:52,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:52,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494898216] [2022-03-15 15:38:52,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:52,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:52,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:52,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:52,183 INFO L87 Difference]: Start difference. First operand 5115 states and 24270 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:52,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:52,371 INFO L93 Difference]: Finished difference Result 11641 states and 52072 transitions. [2022-03-15 15:38:52,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:52,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:52,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:52,405 INFO L225 Difference]: With dead ends: 11641 [2022-03-15 15:38:52,405 INFO L226 Difference]: Without dead ends: 11099 [2022-03-15 15:38:52,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:52,406 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 165 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:52,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 229 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:52,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11099 states. [2022-03-15 15:38:52,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11099 to 5235. [2022-03-15 15:38:52,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5235 states, 5234 states have (on average 4.73098968284295) internal successors, (24762), 5234 states have internal predecessors, (24762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:52,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 24762 transitions. [2022-03-15 15:38:52,556 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 24762 transitions. Word has length 29 [2022-03-15 15:38:52,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:52,556 INFO L470 AbstractCegarLoop]: Abstraction has 5235 states and 24762 transitions. [2022-03-15 15:38:52,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:52,556 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 24762 transitions. [2022-03-15 15:38:52,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:52,567 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:52,567 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:52,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1403 [2022-03-15 15:38:52,567 INFO L402 AbstractCegarLoop]: === Iteration 1405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:52,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:52,567 INFO L85 PathProgramCache]: Analyzing trace with hash -885096707, now seen corresponding path program 1400 times [2022-03-15 15:38:52,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:52,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485444578] [2022-03-15 15:38:52,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:52,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:52,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:52,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:52,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485444578] [2022-03-15 15:38:52,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485444578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:52,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:52,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:52,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321213085] [2022-03-15 15:38:52,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:52,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:52,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:52,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:52,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:52,692 INFO L87 Difference]: Start difference. First operand 5235 states and 24762 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:52,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:52,875 INFO L93 Difference]: Finished difference Result 11514 states and 51465 transitions. [2022-03-15 15:38:52,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:52,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:52,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:52,907 INFO L225 Difference]: With dead ends: 11514 [2022-03-15 15:38:52,907 INFO L226 Difference]: Without dead ends: 11019 [2022-03-15 15:38:52,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:52,908 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 164 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:52,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 236 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:52,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11019 states. [2022-03-15 15:38:53,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11019 to 5155. [2022-03-15 15:38:53,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.740783857198292) internal successors, (24434), 5154 states have internal predecessors, (24434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:53,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24434 transitions. [2022-03-15 15:38:53,041 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24434 transitions. Word has length 29 [2022-03-15 15:38:53,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:53,041 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24434 transitions. [2022-03-15 15:38:53,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24434 transitions. [2022-03-15 15:38:53,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:53,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:53,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:53,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1404 [2022-03-15 15:38:53,078 INFO L402 AbstractCegarLoop]: === Iteration 1406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:53,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:53,079 INFO L85 PathProgramCache]: Analyzing trace with hash 7061245, now seen corresponding path program 1401 times [2022-03-15 15:38:53,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:53,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279841651] [2022-03-15 15:38:53,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:53,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:53,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:53,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:53,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279841651] [2022-03-15 15:38:53,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279841651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:53,189 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:53,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:53,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785062962] [2022-03-15 15:38:53,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:53,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:53,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:53,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:53,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:53,190 INFO L87 Difference]: Start difference. First operand 5155 states and 24434 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:53,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:53,373 INFO L93 Difference]: Finished difference Result 11490 states and 51453 transitions. [2022-03-15 15:38:53,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:53,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:53,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:53,406 INFO L225 Difference]: With dead ends: 11490 [2022-03-15 15:38:53,406 INFO L226 Difference]: Without dead ends: 10948 [2022-03-15 15:38:53,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:53,406 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 166 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:53,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 196 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:53,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10948 states. [2022-03-15 15:38:53,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10948 to 5259. [2022-03-15 15:38:53,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 4.7208063902624575) internal successors, (24822), 5258 states have internal predecessors, (24822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:53,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 24822 transitions. [2022-03-15 15:38:53,556 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 24822 transitions. Word has length 29 [2022-03-15 15:38:53,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:53,556 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 24822 transitions. [2022-03-15 15:38:53,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:53,556 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 24822 transitions. [2022-03-15 15:38:53,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:53,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:53,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:53,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1405 [2022-03-15 15:38:53,566 INFO L402 AbstractCegarLoop]: === Iteration 1407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:53,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:53,567 INFO L85 PathProgramCache]: Analyzing trace with hash -828772833, now seen corresponding path program 1402 times [2022-03-15 15:38:53,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:53,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26710378] [2022-03-15 15:38:53,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:53,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:53,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:53,805 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:53,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26710378] [2022-03-15 15:38:53,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26710378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:53,805 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:53,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:53,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036454901] [2022-03-15 15:38:53,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:53,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:53,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:53,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:53,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:53,806 INFO L87 Difference]: Start difference. First operand 5259 states and 24822 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:54,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:54,013 INFO L93 Difference]: Finished difference Result 11091 states and 49861 transitions. [2022-03-15 15:38:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:54,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:54,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:54,047 INFO L225 Difference]: With dead ends: 11091 [2022-03-15 15:38:54,047 INFO L226 Difference]: Without dead ends: 10524 [2022-03-15 15:38:54,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:54,047 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 167 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:54,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 193 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:54,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10524 states. [2022-03-15 15:38:54,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10524 to 5155. [2022-03-15 15:38:54,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 5154 states have (on average 4.73302289483896) internal successors, (24394), 5154 states have internal predecessors, (24394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:54,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 24394 transitions. [2022-03-15 15:38:54,192 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 24394 transitions. Word has length 29 [2022-03-15 15:38:54,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:54,193 INFO L470 AbstractCegarLoop]: Abstraction has 5155 states and 24394 transitions. [2022-03-15 15:38:54,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:54,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 24394 transitions. [2022-03-15 15:38:54,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:54,203 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:54,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:54,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1406 [2022-03-15 15:38:54,203 INFO L402 AbstractCegarLoop]: === Iteration 1408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:54,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:54,203 INFO L85 PathProgramCache]: Analyzing trace with hash -654277089, now seen corresponding path program 1403 times [2022-03-15 15:38:54,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:54,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773509282] [2022-03-15 15:38:54,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:54,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:54,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:54,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:54,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773509282] [2022-03-15 15:38:54,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773509282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:54,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:54,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:54,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130084905] [2022-03-15 15:38:54,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:54,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:54,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:54,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:54,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:54,370 INFO L87 Difference]: Start difference. First operand 5155 states and 24394 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:54,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:54,571 INFO L93 Difference]: Finished difference Result 11307 states and 50618 transitions. [2022-03-15 15:38:54,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:54,571 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:54,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:54,606 INFO L225 Difference]: With dead ends: 11307 [2022-03-15 15:38:54,606 INFO L226 Difference]: Without dead ends: 10892 [2022-03-15 15:38:54,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:54,607 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 162 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:54,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 219 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:54,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10892 states. [2022-03-15 15:38:54,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10892 to 5203. [2022-03-15 15:38:54,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.72318339100346) internal successors, (24570), 5202 states have internal predecessors, (24570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:54,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24570 transitions. [2022-03-15 15:38:54,758 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24570 transitions. Word has length 29 [2022-03-15 15:38:54,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:54,758 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24570 transitions. [2022-03-15 15:38:54,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:54,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24570 transitions. [2022-03-15 15:38:54,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:54,769 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:54,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:54,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1407 [2022-03-15 15:38:54,769 INFO L402 AbstractCegarLoop]: === Iteration 1409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:54,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:54,769 INFO L85 PathProgramCache]: Analyzing trace with hash 255327869, now seen corresponding path program 1404 times [2022-03-15 15:38:54,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:54,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078989913] [2022-03-15 15:38:54,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:54,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:54,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:54,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078989913] [2022-03-15 15:38:54,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078989913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:54,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:54,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:54,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675713058] [2022-03-15 15:38:54,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:54,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:54,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:54,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:54,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:54,898 INFO L87 Difference]: Start difference. First operand 5203 states and 24570 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:55,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:55,089 INFO L93 Difference]: Finished difference Result 11035 states and 49609 transitions. [2022-03-15 15:38:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:55,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:55,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:55,120 INFO L225 Difference]: With dead ends: 11035 [2022-03-15 15:38:55,120 INFO L226 Difference]: Without dead ends: 10484 [2022-03-15 15:38:55,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:55,121 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 174 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:55,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 192 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:55,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10484 states. [2022-03-15 15:38:55,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10484 to 5115. [2022-03-15 15:38:55,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.741885021509582) internal successors, (24250), 5114 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:55,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24250 transitions. [2022-03-15 15:38:55,250 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24250 transitions. Word has length 29 [2022-03-15 15:38:55,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:55,250 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24250 transitions. [2022-03-15 15:38:55,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:55,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24250 transitions. [2022-03-15 15:38:55,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:55,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:55,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:55,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1408 [2022-03-15 15:38:55,260 INFO L402 AbstractCegarLoop]: === Iteration 1410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:55,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:55,260 INFO L85 PathProgramCache]: Analyzing trace with hash 2101978971, now seen corresponding path program 1405 times [2022-03-15 15:38:55,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:55,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571854740] [2022-03-15 15:38:55,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:55,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:55,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:55,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:55,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571854740] [2022-03-15 15:38:55,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571854740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:55,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:55,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:55,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977700088] [2022-03-15 15:38:55,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:55,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:55,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:55,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:55,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:55,427 INFO L87 Difference]: Start difference. First operand 5115 states and 24250 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:55,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:55,601 INFO L93 Difference]: Finished difference Result 11827 states and 52919 transitions. [2022-03-15 15:38:55,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:55,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:55,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:55,634 INFO L225 Difference]: With dead ends: 11827 [2022-03-15 15:38:55,634 INFO L226 Difference]: Without dead ends: 11285 [2022-03-15 15:38:55,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:55,634 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 184 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:55,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 195 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:55,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11285 states. [2022-03-15 15:38:55,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11285 to 5277. [2022-03-15 15:38:55,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5277 states, 5276 states have (on average 4.724601971190296) internal successors, (24927), 5276 states have internal predecessors, (24927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:55,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5277 states to 5277 states and 24927 transitions. [2022-03-15 15:38:55,777 INFO L78 Accepts]: Start accepts. Automaton has 5277 states and 24927 transitions. Word has length 29 [2022-03-15 15:38:55,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:55,777 INFO L470 AbstractCegarLoop]: Abstraction has 5277 states and 24927 transitions. [2022-03-15 15:38:55,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:55,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5277 states and 24927 transitions. [2022-03-15 15:38:55,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:55,787 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:55,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:55,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1409 [2022-03-15 15:38:55,787 INFO L402 AbstractCegarLoop]: === Iteration 1411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:55,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:55,787 INFO L85 PathProgramCache]: Analyzing trace with hash -823367811, now seen corresponding path program 1406 times [2022-03-15 15:38:55,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:55,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790802523] [2022-03-15 15:38:55,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:55,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:55,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:55,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:55,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790802523] [2022-03-15 15:38:55,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790802523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:55,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:55,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:55,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680792540] [2022-03-15 15:38:55,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:55,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:55,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:55,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:55,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:55,942 INFO L87 Difference]: Start difference. First operand 5277 states and 24927 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:56,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:56,133 INFO L93 Difference]: Finished difference Result 11760 states and 52546 transitions. [2022-03-15 15:38:56,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:56,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:56,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:56,166 INFO L225 Difference]: With dead ends: 11760 [2022-03-15 15:38:56,166 INFO L226 Difference]: Without dead ends: 11175 [2022-03-15 15:38:56,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:56,166 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 157 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:56,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 238 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:56,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11175 states. [2022-03-15 15:38:56,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11175 to 5167. [2022-03-15 15:38:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.736740224545103) internal successors, (24470), 5166 states have internal predecessors, (24470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:56,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24470 transitions. [2022-03-15 15:38:56,302 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24470 transitions. Word has length 29 [2022-03-15 15:38:56,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:56,302 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24470 transitions. [2022-03-15 15:38:56,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:56,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24470 transitions. [2022-03-15 15:38:56,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:56,312 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:56,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:56,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1410 [2022-03-15 15:38:56,312 INFO L402 AbstractCegarLoop]: === Iteration 1412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:56,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:56,313 INFO L85 PathProgramCache]: Analyzing trace with hash -791870787, now seen corresponding path program 1407 times [2022-03-15 15:38:56,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:56,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682181212] [2022-03-15 15:38:56,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:56,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:56,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:56,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:56,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682181212] [2022-03-15 15:38:56,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682181212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:56,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:56,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:56,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138325447] [2022-03-15 15:38:56,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:56,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:56,465 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:56,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:56,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:56,466 INFO L87 Difference]: Start difference. First operand 5167 states and 24470 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:56,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:56,661 INFO L93 Difference]: Finished difference Result 11586 states and 51877 transitions. [2022-03-15 15:38:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:56,661 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:56,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:56,694 INFO L225 Difference]: With dead ends: 11586 [2022-03-15 15:38:56,694 INFO L226 Difference]: Without dead ends: 11044 [2022-03-15 15:38:56,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:56,695 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 145 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:56,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 244 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:56,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11044 states. [2022-03-15 15:38:56,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11044 to 5271. [2022-03-15 15:38:56,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5271 states, 5270 states have (on average 4.716888045540797) internal successors, (24858), 5270 states have internal predecessors, (24858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:56,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5271 states to 5271 states and 24858 transitions. [2022-03-15 15:38:56,833 INFO L78 Accepts]: Start accepts. Automaton has 5271 states and 24858 transitions. Word has length 29 [2022-03-15 15:38:56,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:56,833 INFO L470 AbstractCegarLoop]: Abstraction has 5271 states and 24858 transitions. [2022-03-15 15:38:56,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:56,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5271 states and 24858 transitions. [2022-03-15 15:38:56,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:56,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:56,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:56,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1411 [2022-03-15 15:38:56,844 INFO L402 AbstractCegarLoop]: === Iteration 1413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:56,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:56,844 INFO L85 PathProgramCache]: Analyzing trace with hash 629274237, now seen corresponding path program 1408 times [2022-03-15 15:38:56,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:56,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556209382] [2022-03-15 15:38:56,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:56,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:56,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:56,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:56,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556209382] [2022-03-15 15:38:56,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556209382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:56,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:56,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:56,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177193636] [2022-03-15 15:38:56,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:56,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:56,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:56,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:56,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:56,983 INFO L87 Difference]: Start difference. First operand 5271 states and 24858 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:57,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:57,200 INFO L93 Difference]: Finished difference Result 11187 states and 50285 transitions. [2022-03-15 15:38:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:57,200 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:57,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:57,232 INFO L225 Difference]: With dead ends: 11187 [2022-03-15 15:38:57,232 INFO L226 Difference]: Without dead ends: 10620 [2022-03-15 15:38:57,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:57,232 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 149 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:57,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 222 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:57,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10620 states. [2022-03-15 15:38:57,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10620 to 5167. [2022-03-15 15:38:57,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.726674409601239) internal successors, (24418), 5166 states have internal predecessors, (24418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:57,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24418 transitions. [2022-03-15 15:38:57,366 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24418 transitions. Word has length 29 [2022-03-15 15:38:57,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:57,366 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24418 transitions. [2022-03-15 15:38:57,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:57,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24418 transitions. [2022-03-15 15:38:57,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:57,375 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:57,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:57,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1412 [2022-03-15 15:38:57,375 INFO L402 AbstractCegarLoop]: === Iteration 1414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:57,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:57,376 INFO L85 PathProgramCache]: Analyzing trace with hash -901032417, now seen corresponding path program 1409 times [2022-03-15 15:38:57,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:57,376 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50567957] [2022-03-15 15:38:57,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:57,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:57,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:57,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:57,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50567957] [2022-03-15 15:38:57,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50567957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:57,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:57,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:57,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992516283] [2022-03-15 15:38:57,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:57,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:57,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:57,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:57,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:57,542 INFO L87 Difference]: Start difference. First operand 5167 states and 24418 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:57,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:57,755 INFO L93 Difference]: Finished difference Result 11487 states and 51418 transitions. [2022-03-15 15:38:57,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:57,756 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:57,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:57,788 INFO L225 Difference]: With dead ends: 11487 [2022-03-15 15:38:57,788 INFO L226 Difference]: Without dead ends: 11012 [2022-03-15 15:38:57,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:57,788 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:57,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 222 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:57,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11012 states. [2022-03-15 15:38:57,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11012 to 5239. [2022-03-15 15:38:57,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.714394807178312) internal successors, (24694), 5238 states have internal predecessors, (24694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:57,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24694 transitions. [2022-03-15 15:38:57,924 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24694 transitions. Word has length 29 [2022-03-15 15:38:57,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:57,924 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 24694 transitions. [2022-03-15 15:38:57,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:57,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24694 transitions. [2022-03-15 15:38:57,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:57,934 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:57,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:57,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1413 [2022-03-15 15:38:57,934 INFO L402 AbstractCegarLoop]: === Iteration 1415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:57,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:57,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1277855229, now seen corresponding path program 1410 times [2022-03-15 15:38:57,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:57,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759207418] [2022-03-15 15:38:57,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:57,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:58,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:58,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759207418] [2022-03-15 15:38:58,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759207418] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:58,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:58,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:58,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398282269] [2022-03-15 15:38:58,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:58,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:58,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:58,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:58,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:58,054 INFO L87 Difference]: Start difference. First operand 5239 states and 24694 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:58,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:58,216 INFO L93 Difference]: Finished difference Result 11155 states and 50121 transitions. [2022-03-15 15:38:58,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:58,216 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:58,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:58,248 INFO L225 Difference]: With dead ends: 11155 [2022-03-15 15:38:58,248 INFO L226 Difference]: Without dead ends: 10568 [2022-03-15 15:38:58,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:58,249 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 144 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:58,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 201 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:58,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10568 states. [2022-03-15 15:38:58,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10568 to 5115. [2022-03-15 15:38:58,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5115 states, 5114 states have (on average 4.737974188502151) internal successors, (24230), 5114 states have internal predecessors, (24230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:58,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5115 states to 5115 states and 24230 transitions. [2022-03-15 15:38:58,384 INFO L78 Accepts]: Start accepts. Automaton has 5115 states and 24230 transitions. Word has length 29 [2022-03-15 15:38:58,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:58,384 INFO L470 AbstractCegarLoop]: Abstraction has 5115 states and 24230 transitions. [2022-03-15 15:38:58,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:58,384 INFO L276 IsEmpty]: Start isEmpty. Operand 5115 states and 24230 transitions. [2022-03-15 15:38:58,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:58,393 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:58,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:58,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1414 [2022-03-15 15:38:58,393 INFO L402 AbstractCegarLoop]: === Iteration 1416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:58,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:58,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1842806303, now seen corresponding path program 1411 times [2022-03-15 15:38:58,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:58,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413474666] [2022-03-15 15:38:58,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:58,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:58,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:58,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:58,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413474666] [2022-03-15 15:38:58,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413474666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:58,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:58,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:58,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684755893] [2022-03-15 15:38:58,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:58,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:58,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:58,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:58,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:58,534 INFO L87 Difference]: Start difference. First operand 5115 states and 24230 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:58,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:58,754 INFO L93 Difference]: Finished difference Result 11300 states and 50611 transitions. [2022-03-15 15:38:58,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:58,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:58,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:58,786 INFO L225 Difference]: With dead ends: 11300 [2022-03-15 15:38:58,786 INFO L226 Difference]: Without dead ends: 10885 [2022-03-15 15:38:58,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:58,786 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 151 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:58,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 235 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:58,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10885 states. [2022-03-15 15:38:58,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10885 to 5187. [2022-03-15 15:38:58,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.73004242190513) internal successors, (24530), 5186 states have internal predecessors, (24530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:58,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24530 transitions. [2022-03-15 15:38:58,918 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24530 transitions. Word has length 29 [2022-03-15 15:38:58,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:58,918 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24530 transitions. [2022-03-15 15:38:58,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:58,918 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24530 transitions. [2022-03-15 15:38:58,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:58,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:58,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:58,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1415 [2022-03-15 15:38:58,928 INFO L402 AbstractCegarLoop]: === Iteration 1417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:58,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:58,928 INFO L85 PathProgramCache]: Analyzing trace with hash 996009341, now seen corresponding path program 1412 times [2022-03-15 15:38:58,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:58,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664780240] [2022-03-15 15:38:58,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:58,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:59,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:59,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664780240] [2022-03-15 15:38:59,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664780240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:59,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:59,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:59,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162581581] [2022-03-15 15:38:59,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:59,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:59,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:59,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:59,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:59,109 INFO L87 Difference]: Start difference. First operand 5187 states and 24530 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:59,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:59,300 INFO L93 Difference]: Finished difference Result 11360 states and 50827 transitions. [2022-03-15 15:38:59,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:59,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:59,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:59,333 INFO L225 Difference]: With dead ends: 11360 [2022-03-15 15:38:59,333 INFO L226 Difference]: Without dead ends: 10837 [2022-03-15 15:38:59,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:59,333 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 170 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:59,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 221 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:59,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10837 states. [2022-03-15 15:38:59,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10837 to 5139. [2022-03-15 15:38:59,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.735305566368237) internal successors, (24330), 5138 states have internal predecessors, (24330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24330 transitions. [2022-03-15 15:38:59,466 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24330 transitions. Word has length 29 [2022-03-15 15:38:59,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:38:59,467 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24330 transitions. [2022-03-15 15:38:59,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:59,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24330 transitions. [2022-03-15 15:38:59,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:38:59,476 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:38:59,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:38:59,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1416 [2022-03-15 15:38:59,476 INFO L402 AbstractCegarLoop]: === Iteration 1418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:38:59,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:38:59,476 INFO L85 PathProgramCache]: Analyzing trace with hash -190206339, now seen corresponding path program 1413 times [2022-03-15 15:38:59,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:38:59,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769250490] [2022-03-15 15:38:59,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:38:59,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:38:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:38:59,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:38:59,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:38:59,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769250490] [2022-03-15 15:38:59,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769250490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:38:59,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:38:59,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:38:59,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653183001] [2022-03-15 15:38:59,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:38:59,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:38:59,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:38:59,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:38:59,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:38:59,623 INFO L87 Difference]: Start difference. First operand 5139 states and 24330 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:38:59,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:38:59,799 INFO L93 Difference]: Finished difference Result 11192 states and 50147 transitions. [2022-03-15 15:38:59,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:38:59,799 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:38:59,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:38:59,835 INFO L225 Difference]: With dead ends: 11192 [2022-03-15 15:38:59,835 INFO L226 Difference]: Without dead ends: 10777 [2022-03-15 15:38:59,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:38:59,835 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 191 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:38:59,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 186 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:38:59,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10777 states. [2022-03-15 15:39:00,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10777 to 5187. [2022-03-15 15:39:00,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5187 states, 5186 states have (on average 4.725414577709217) internal successors, (24506), 5186 states have internal predecessors, (24506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 24506 transitions. [2022-03-15 15:39:00,032 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 24506 transitions. Word has length 29 [2022-03-15 15:39:00,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:00,032 INFO L470 AbstractCegarLoop]: Abstraction has 5187 states and 24506 transitions. [2022-03-15 15:39:00,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 24506 transitions. [2022-03-15 15:39:00,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:00,043 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:00,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:00,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1417 [2022-03-15 15:39:00,043 INFO L402 AbstractCegarLoop]: === Iteration 1419 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:00,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:00,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1346393725, now seen corresponding path program 1414 times [2022-03-15 15:39:00,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:00,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146204135] [2022-03-15 15:39:00,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:00,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:00,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:00,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:00,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146204135] [2022-03-15 15:39:00,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146204135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:00,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:00,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:00,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250114672] [2022-03-15 15:39:00,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:00,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:00,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:00,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:00,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:00,199 INFO L87 Difference]: Start difference. First operand 5187 states and 24506 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:00,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:00,399 INFO L93 Difference]: Finished difference Result 10920 states and 49138 transitions. [2022-03-15 15:39:00,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:00,399 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:00,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:00,433 INFO L225 Difference]: With dead ends: 10920 [2022-03-15 15:39:00,433 INFO L226 Difference]: Without dead ends: 10409 [2022-03-15 15:39:00,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:00,434 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 150 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:00,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 215 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:00,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10409 states. [2022-03-15 15:39:00,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10409 to 5139. [2022-03-15 15:39:00,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5139 states, 5138 states have (on average 4.730634488127676) internal successors, (24306), 5138 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:00,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5139 states to 5139 states and 24306 transitions. [2022-03-15 15:39:00,590 INFO L78 Accepts]: Start accepts. Automaton has 5139 states and 24306 transitions. Word has length 29 [2022-03-15 15:39:00,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:00,590 INFO L470 AbstractCegarLoop]: Abstraction has 5139 states and 24306 transitions. [2022-03-15 15:39:00,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:00,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5139 states and 24306 transitions. [2022-03-15 15:39:00,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:00,600 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:00,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:00,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1418 [2022-03-15 15:39:00,601 INFO L402 AbstractCegarLoop]: === Iteration 1420 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:00,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:00,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1046954405, now seen corresponding path program 1415 times [2022-03-15 15:39:00,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:00,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811764908] [2022-03-15 15:39:00,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:00,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:00,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:00,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:00,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811764908] [2022-03-15 15:39:00,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811764908] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:00,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:00,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:00,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94673398] [2022-03-15 15:39:00,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:00,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:00,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:00,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:00,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:00,745 INFO L87 Difference]: Start difference. First operand 5139 states and 24306 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:00,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:00,937 INFO L93 Difference]: Finished difference Result 11276 states and 50511 transitions. [2022-03-15 15:39:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:00,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:00,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:00,973 INFO L225 Difference]: With dead ends: 11276 [2022-03-15 15:39:00,973 INFO L226 Difference]: Without dead ends: 10801 [2022-03-15 15:39:00,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:00,973 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 156 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:00,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 202 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:00,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10801 states. [2022-03-15 15:39:01,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10801 to 5211. [2022-03-15 15:39:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 4.718234165067178) internal successors, (24582), 5210 states have internal predecessors, (24582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:01,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 24582 transitions. [2022-03-15 15:39:01,113 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 24582 transitions. Word has length 29 [2022-03-15 15:39:01,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:01,113 INFO L470 AbstractCegarLoop]: Abstraction has 5211 states and 24582 transitions. [2022-03-15 15:39:01,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:01,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 24582 transitions. [2022-03-15 15:39:01,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:01,123 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:01,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:01,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1419 [2022-03-15 15:39:01,123 INFO L402 AbstractCegarLoop]: === Iteration 1421 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:01,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:01,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2074053181, now seen corresponding path program 1416 times [2022-03-15 15:39:01,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:01,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220720421] [2022-03-15 15:39:01,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:01,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:01,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:01,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:01,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220720421] [2022-03-15 15:39:01,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220720421] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:01,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:01,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:01,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649285641] [2022-03-15 15:39:01,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:01,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:01,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:01,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:01,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:01,229 INFO L87 Difference]: Start difference. First operand 5211 states and 24582 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:01,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:01,384 INFO L93 Difference]: Finished difference Result 10944 states and 49214 transitions. [2022-03-15 15:39:01,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:01,384 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:01,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:01,415 INFO L225 Difference]: With dead ends: 10944 [2022-03-15 15:39:01,415 INFO L226 Difference]: Without dead ends: 10365 [2022-03-15 15:39:01,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:01,415 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 159 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:01,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 195 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:01,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10365 states. [2022-03-15 15:39:01,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10365 to 5095. [2022-03-15 15:39:01,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 4.744405182567727) internal successors, (24168), 5094 states have internal predecessors, (24168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:01,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 24168 transitions. [2022-03-15 15:39:01,547 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 24168 transitions. Word has length 29 [2022-03-15 15:39:01,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:01,547 INFO L470 AbstractCegarLoop]: Abstraction has 5095 states and 24168 transitions. [2022-03-15 15:39:01,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:01,547 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 24168 transitions. [2022-03-15 15:39:01,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:01,557 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:01,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:01,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1420 [2022-03-15 15:39:01,557 INFO L402 AbstractCegarLoop]: === Iteration 1422 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:01,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:01,557 INFO L85 PathProgramCache]: Analyzing trace with hash 297103745, now seen corresponding path program 1417 times [2022-03-15 15:39:01,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:01,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848989803] [2022-03-15 15:39:01,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:01,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:01,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:01,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848989803] [2022-03-15 15:39:01,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848989803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:01,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:01,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:01,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34649486] [2022-03-15 15:39:01,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:01,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:01,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:01,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:01,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:01,661 INFO L87 Difference]: Start difference. First operand 5095 states and 24168 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:01,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:01,814 INFO L93 Difference]: Finished difference Result 11231 states and 50333 transitions. [2022-03-15 15:39:01,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:01,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:01,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:01,847 INFO L225 Difference]: With dead ends: 11231 [2022-03-15 15:39:01,847 INFO L226 Difference]: Without dead ends: 10754 [2022-03-15 15:39:01,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:01,847 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 179 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:01,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 199 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:01,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10754 states. [2022-03-15 15:39:01,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10754 to 5179. [2022-03-15 15:39:01,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.738509076863654) internal successors, (24536), 5178 states have internal predecessors, (24536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:01,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24536 transitions. [2022-03-15 15:39:01,990 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24536 transitions. Word has length 29 [2022-03-15 15:39:01,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:01,991 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24536 transitions. [2022-03-15 15:39:01,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:01,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24536 transitions. [2022-03-15 15:39:02,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:02,000 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:02,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:02,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1421 [2022-03-15 15:39:02,001 INFO L402 AbstractCegarLoop]: === Iteration 1423 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:02,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:02,001 INFO L85 PathProgramCache]: Analyzing trace with hash -549693217, now seen corresponding path program 1418 times [2022-03-15 15:39:02,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:02,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745340463] [2022-03-15 15:39:02,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:02,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:02,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:02,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:02,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745340463] [2022-03-15 15:39:02,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745340463] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:02,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:02,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:02,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817334727] [2022-03-15 15:39:02,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:02,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:02,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:02,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:02,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:02,105 INFO L87 Difference]: Start difference. First operand 5179 states and 24536 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:02,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:02,267 INFO L93 Difference]: Finished difference Result 11169 states and 50016 transitions. [2022-03-15 15:39:02,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:02,268 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:02,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:02,299 INFO L225 Difference]: With dead ends: 11169 [2022-03-15 15:39:02,299 INFO L226 Difference]: Without dead ends: 10706 [2022-03-15 15:39:02,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:02,299 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 149 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:02,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 225 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:02,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10706 states. [2022-03-15 15:39:02,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10706 to 5131. [2022-03-15 15:39:02,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.743859649122807) internal successors, (24336), 5130 states have internal predecessors, (24336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:02,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24336 transitions. [2022-03-15 15:39:02,434 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24336 transitions. Word has length 29 [2022-03-15 15:39:02,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:02,434 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24336 transitions. [2022-03-15 15:39:02,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:02,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24336 transitions. [2022-03-15 15:39:02,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:02,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:02,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:02,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1422 [2022-03-15 15:39:02,444 INFO L402 AbstractCegarLoop]: === Iteration 1424 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:02,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:02,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1725957793, now seen corresponding path program 1419 times [2022-03-15 15:39:02,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:02,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573348312] [2022-03-15 15:39:02,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:02,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:02,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:02,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:02,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573348312] [2022-03-15 15:39:02,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573348312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:02,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:02,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:02,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903825734] [2022-03-15 15:39:02,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:02,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:02,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:02,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:02,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:02,549 INFO L87 Difference]: Start difference. First operand 5131 states and 24336 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:02,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:02,730 INFO L93 Difference]: Finished difference Result 11321 states and 50720 transitions. [2022-03-15 15:39:02,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:02,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:02,761 INFO L225 Difference]: With dead ends: 11321 [2022-03-15 15:39:02,762 INFO L226 Difference]: Without dead ends: 10844 [2022-03-15 15:39:02,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:02,762 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 156 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:02,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 232 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:02,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10844 states. [2022-03-15 15:39:02,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10844 to 5209. [2022-03-15 15:39:02,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.729070660522273) internal successors, (24629), 5208 states have internal predecessors, (24629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:02,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24629 transitions. [2022-03-15 15:39:02,898 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24629 transitions. Word has length 29 [2022-03-15 15:39:02,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:02,898 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24629 transitions. [2022-03-15 15:39:02,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:02,898 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24629 transitions. [2022-03-15 15:39:02,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:02,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:02,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:02,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1423 [2022-03-15 15:39:02,908 INFO L402 AbstractCegarLoop]: === Iteration 1425 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:02,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:02,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1772982623, now seen corresponding path program 1420 times [2022-03-15 15:39:02,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:02,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012969237] [2022-03-15 15:39:02,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:02,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:03,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:03,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012969237] [2022-03-15 15:39:03,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012969237] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:03,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:03,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:03,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457919841] [2022-03-15 15:39:03,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:03,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:03,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:03,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:03,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:03,046 INFO L87 Difference]: Start difference. First operand 5209 states and 24629 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:03,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:03,245 INFO L93 Difference]: Finished difference Result 11319 states and 50637 transitions. [2022-03-15 15:39:03,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:03,245 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:03,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:03,279 INFO L225 Difference]: With dead ends: 11319 [2022-03-15 15:39:03,279 INFO L226 Difference]: Without dead ends: 10766 [2022-03-15 15:39:03,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:03,279 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 146 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:03,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 228 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:03,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2022-03-15 15:39:03,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 5131. [2022-03-15 15:39:03,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.739181286549708) internal successors, (24312), 5130 states have internal predecessors, (24312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:03,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24312 transitions. [2022-03-15 15:39:03,423 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24312 transitions. Word has length 29 [2022-03-15 15:39:03,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:03,423 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24312 transitions. [2022-03-15 15:39:03,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:03,423 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24312 transitions. [2022-03-15 15:39:03,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:03,433 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:03,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:03,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1424 [2022-03-15 15:39:03,433 INFO L402 AbstractCegarLoop]: === Iteration 1426 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:03,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:03,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1712261437, now seen corresponding path program 1421 times [2022-03-15 15:39:03,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:03,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543497979] [2022-03-15 15:39:03,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:03,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:03,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:03,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:03,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543497979] [2022-03-15 15:39:03,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543497979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:03,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:03,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:03,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976829069] [2022-03-15 15:39:03,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:03,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:03,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:03,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:03,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:03,580 INFO L87 Difference]: Start difference. First operand 5131 states and 24312 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:03,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:03,801 INFO L93 Difference]: Finished difference Result 11167 states and 50011 transitions. [2022-03-15 15:39:03,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:03,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:03,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:03,838 INFO L225 Difference]: With dead ends: 11167 [2022-03-15 15:39:03,839 INFO L226 Difference]: Without dead ends: 10752 [2022-03-15 15:39:03,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:03,839 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 179 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:03,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 190 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:03,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10752 states. [2022-03-15 15:39:03,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10752 to 5179. [2022-03-15 15:39:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.7292390884511395) internal successors, (24488), 5178 states have internal predecessors, (24488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:04,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24488 transitions. [2022-03-15 15:39:04,002 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24488 transitions. Word has length 29 [2022-03-15 15:39:04,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:04,002 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24488 transitions. [2022-03-15 15:39:04,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24488 transitions. [2022-03-15 15:39:04,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:04,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:04,013 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:04,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1425 [2022-03-15 15:39:04,013 INFO L402 AbstractCegarLoop]: === Iteration 1427 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:04,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:04,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1231359391, now seen corresponding path program 1422 times [2022-03-15 15:39:04,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:04,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017108338] [2022-03-15 15:39:04,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:04,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:04,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:04,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:04,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017108338] [2022-03-15 15:39:04,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017108338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:04,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:04,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:04,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819970842] [2022-03-15 15:39:04,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:04,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:04,182 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:04,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:04,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:04,182 INFO L87 Difference]: Start difference. First operand 5179 states and 24488 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:04,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:04,352 INFO L93 Difference]: Finished difference Result 11227 states and 50227 transitions. [2022-03-15 15:39:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:04,353 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:04,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:04,387 INFO L225 Difference]: With dead ends: 11227 [2022-03-15 15:39:04,387 INFO L226 Difference]: Without dead ends: 10680 [2022-03-15 15:39:04,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:04,388 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 165 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:04,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 213 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:04,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10680 states. [2022-03-15 15:39:04,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10680 to 5107. [2022-03-15 15:39:04,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.744222483352918) internal successors, (24224), 5106 states have internal predecessors, (24224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:04,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24224 transitions. [2022-03-15 15:39:04,546 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24224 transitions. Word has length 29 [2022-03-15 15:39:04,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:04,546 INFO L470 AbstractCegarLoop]: Abstraction has 5107 states and 24224 transitions. [2022-03-15 15:39:04,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:04,546 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24224 transitions. [2022-03-15 15:39:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:04,557 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:04,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:04,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1426 [2022-03-15 15:39:04,557 INFO L402 AbstractCegarLoop]: === Iteration 1428 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:04,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:04,557 INFO L85 PathProgramCache]: Analyzing trace with hash 782074463, now seen corresponding path program 1423 times [2022-03-15 15:39:04,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:04,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598337033] [2022-03-15 15:39:04,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:04,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:04,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:04,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598337033] [2022-03-15 15:39:04,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598337033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:04,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:04,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:04,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034826752] [2022-03-15 15:39:04,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:04,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:04,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:04,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:04,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:04,691 INFO L87 Difference]: Start difference. First operand 5107 states and 24224 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:04,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:04,905 INFO L93 Difference]: Finished difference Result 11165 states and 50034 transitions. [2022-03-15 15:39:04,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:04,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:04,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:04,940 INFO L225 Difference]: With dead ends: 11165 [2022-03-15 15:39:04,940 INFO L226 Difference]: Without dead ends: 10688 [2022-03-15 15:39:04,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:04,940 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 156 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:04,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 222 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:04,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10688 states. [2022-03-15 15:39:05,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10688 to 5179. [2022-03-15 15:39:05,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.736191579760526) internal successors, (24524), 5178 states have internal predecessors, (24524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:05,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24524 transitions. [2022-03-15 15:39:05,104 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24524 transitions. Word has length 29 [2022-03-15 15:39:05,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:05,104 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24524 transitions. [2022-03-15 15:39:05,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:05,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24524 transitions. [2022-03-15 15:39:05,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:05,115 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:05,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:05,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1427 [2022-03-15 15:39:05,115 INFO L402 AbstractCegarLoop]: === Iteration 1429 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:05,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:05,116 INFO L85 PathProgramCache]: Analyzing trace with hash -64722499, now seen corresponding path program 1424 times [2022-03-15 15:39:05,116 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:05,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007182271] [2022-03-15 15:39:05,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:05,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:05,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:05,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:05,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007182271] [2022-03-15 15:39:05,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007182271] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:05,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:05,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:05,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853130634] [2022-03-15 15:39:05,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:05,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:05,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:05,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:05,289 INFO L87 Difference]: Start difference. First operand 5179 states and 24524 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:05,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:05,476 INFO L93 Difference]: Finished difference Result 11103 states and 49717 transitions. [2022-03-15 15:39:05,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:05,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:05,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:05,508 INFO L225 Difference]: With dead ends: 11103 [2022-03-15 15:39:05,508 INFO L226 Difference]: Without dead ends: 10640 [2022-03-15 15:39:05,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:05,509 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 157 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:05,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 216 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:05,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2022-03-15 15:39:05,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 5131. [2022-03-15 15:39:05,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.741520467836257) internal successors, (24324), 5130 states have internal predecessors, (24324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24324 transitions. [2022-03-15 15:39:05,640 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24324 transitions. Word has length 29 [2022-03-15 15:39:05,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:05,640 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24324 transitions. [2022-03-15 15:39:05,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:05,640 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24324 transitions. [2022-03-15 15:39:05,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:05,649 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:05,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:05,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1428 [2022-03-15 15:39:05,650 INFO L402 AbstractCegarLoop]: === Iteration 1430 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:05,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:05,650 INFO L85 PathProgramCache]: Analyzing trace with hash -14013857, now seen corresponding path program 1425 times [2022-03-15 15:39:05,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:05,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065499400] [2022-03-15 15:39:05,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:05,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:05,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:05,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:05,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065499400] [2022-03-15 15:39:05,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065499400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:05,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:05,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:05,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619490019] [2022-03-15 15:39:05,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:05,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:05,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:05,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:05,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:05,793 INFO L87 Difference]: Start difference. First operand 5131 states and 24324 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:05,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:05,988 INFO L93 Difference]: Finished difference Result 11079 states and 49689 transitions. [2022-03-15 15:39:05,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:05,988 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:05,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:06,019 INFO L225 Difference]: With dead ends: 11079 [2022-03-15 15:39:06,020 INFO L226 Difference]: Without dead ends: 10602 [2022-03-15 15:39:06,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:06,020 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:06,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 243 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:06,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10602 states. [2022-03-15 15:39:06,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10602 to 5203. [2022-03-15 15:39:06,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.728950403690888) internal successors, (24600), 5202 states have internal predecessors, (24600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:06,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24600 transitions. [2022-03-15 15:39:06,155 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24600 transitions. Word has length 29 [2022-03-15 15:39:06,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:06,155 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24600 transitions. [2022-03-15 15:39:06,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:06,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24600 transitions. [2022-03-15 15:39:06,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:06,164 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:06,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:06,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1429 [2022-03-15 15:39:06,165 INFO L402 AbstractCegarLoop]: === Iteration 1431 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:06,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:06,165 INFO L85 PathProgramCache]: Analyzing trace with hash -439754145, now seen corresponding path program 1426 times [2022-03-15 15:39:06,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:06,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014795946] [2022-03-15 15:39:06,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:06,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:06,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:06,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014795946] [2022-03-15 15:39:06,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014795946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:06,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:06,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:06,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778835198] [2022-03-15 15:39:06,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:06,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:06,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:06,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:06,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:06,308 INFO L87 Difference]: Start difference. First operand 5203 states and 24600 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:06,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:06,538 INFO L93 Difference]: Finished difference Result 10745 states and 48387 transitions. [2022-03-15 15:39:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:06,538 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:06,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:06,570 INFO L225 Difference]: With dead ends: 10745 [2022-03-15 15:39:06,570 INFO L226 Difference]: Without dead ends: 10210 [2022-03-15 15:39:06,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:06,570 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 154 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:06,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 220 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:06,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10210 states. [2022-03-15 15:39:06,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10210 to 5131. [2022-03-15 15:39:06,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.7368421052631575) internal successors, (24300), 5130 states have internal predecessors, (24300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:06,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24300 transitions. [2022-03-15 15:39:06,693 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24300 transitions. Word has length 29 [2022-03-15 15:39:06,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:06,693 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24300 transitions. [2022-03-15 15:39:06,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:06,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24300 transitions. [2022-03-15 15:39:06,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:06,703 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:06,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:06,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1430 [2022-03-15 15:39:06,703 INFO L402 AbstractCegarLoop]: === Iteration 1432 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:06,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:06,703 INFO L85 PathProgramCache]: Analyzing trace with hash -870761923, now seen corresponding path program 1427 times [2022-03-15 15:39:06,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:06,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104121696] [2022-03-15 15:39:06,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:06,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:06,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:06,839 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:06,839 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104121696] [2022-03-15 15:39:06,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104121696] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:06,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:06,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:06,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033567074] [2022-03-15 15:39:06,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:06,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:06,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:06,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:06,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:06,840 INFO L87 Difference]: Start difference. First operand 5131 states and 24300 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:07,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:07,032 INFO L93 Difference]: Finished difference Result 10993 states and 49272 transitions. [2022-03-15 15:39:07,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:07,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:07,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:07,065 INFO L225 Difference]: With dead ends: 10993 [2022-03-15 15:39:07,065 INFO L226 Difference]: Without dead ends: 10578 [2022-03-15 15:39:07,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:07,065 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 164 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:07,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 227 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:07,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10578 states. [2022-03-15 15:39:07,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10578 to 5179. [2022-03-15 15:39:07,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.7269215913480105) internal successors, (24476), 5178 states have internal predecessors, (24476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:07,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24476 transitions. [2022-03-15 15:39:07,196 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24476 transitions. Word has length 29 [2022-03-15 15:39:07,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:07,196 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24476 transitions. [2022-03-15 15:39:07,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:07,196 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24476 transitions. [2022-03-15 15:39:07,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:07,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:07,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:07,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1431 [2022-03-15 15:39:07,210 INFO L402 AbstractCegarLoop]: === Iteration 1433 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:07,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:07,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1557187999, now seen corresponding path program 1428 times [2022-03-15 15:39:07,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:07,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981009027] [2022-03-15 15:39:07,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:07,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:07,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:07,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981009027] [2022-03-15 15:39:07,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981009027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:07,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:07,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:07,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973952446] [2022-03-15 15:39:07,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:07,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:07,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:07,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:07,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:07,388 INFO L87 Difference]: Start difference. First operand 5179 states and 24476 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:07,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:07,599 INFO L93 Difference]: Finished difference Result 10721 states and 48263 transitions. [2022-03-15 15:39:07,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:07,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:07,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:07,634 INFO L225 Difference]: With dead ends: 10721 [2022-03-15 15:39:07,635 INFO L226 Difference]: Without dead ends: 10186 [2022-03-15 15:39:07,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:07,635 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 155 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:07,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 204 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:07,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10186 states. [2022-03-15 15:39:07,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10186 to 5107. [2022-03-15 15:39:07,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.741872307089698) internal successors, (24212), 5106 states have internal predecessors, (24212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:07,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24212 transitions. [2022-03-15 15:39:07,795 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24212 transitions. Word has length 29 [2022-03-15 15:39:07,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:07,795 INFO L470 AbstractCegarLoop]: Abstraction has 5107 states and 24212 transitions. [2022-03-15 15:39:07,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:07,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24212 transitions. [2022-03-15 15:39:07,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:07,805 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:07,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:07,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1432 [2022-03-15 15:39:07,806 INFO L402 AbstractCegarLoop]: === Iteration 1434 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:07,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:07,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2080903869, now seen corresponding path program 1429 times [2022-03-15 15:39:07,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:07,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199376763] [2022-03-15 15:39:07,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:07,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:07,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:07,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199376763] [2022-03-15 15:39:07,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199376763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:07,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:07,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:07,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515873562] [2022-03-15 15:39:07,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:07,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:07,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:07,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:07,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:07,973 INFO L87 Difference]: Start difference. First operand 5107 states and 24212 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:08,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:08,176 INFO L93 Difference]: Finished difference Result 11351 states and 50889 transitions. [2022-03-15 15:39:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:08,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:08,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:08,208 INFO L225 Difference]: With dead ends: 11351 [2022-03-15 15:39:08,208 INFO L226 Difference]: Without dead ends: 10874 [2022-03-15 15:39:08,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:08,208 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 155 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:08,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 228 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:08,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10874 states. [2022-03-15 15:39:08,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10874 to 5221. [2022-03-15 15:39:08,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5221 states, 5220 states have (on average 4.731226053639847) internal successors, (24697), 5220 states have internal predecessors, (24697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:08,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 24697 transitions. [2022-03-15 15:39:08,351 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 24697 transitions. Word has length 29 [2022-03-15 15:39:08,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:08,351 INFO L470 AbstractCegarLoop]: Abstraction has 5221 states and 24697 transitions. [2022-03-15 15:39:08,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:08,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 24697 transitions. [2022-03-15 15:39:08,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:08,362 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:08,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:08,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1433 [2022-03-15 15:39:08,362 INFO L402 AbstractCegarLoop]: === Iteration 1435 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:08,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:08,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1284876989, now seen corresponding path program 1430 times [2022-03-15 15:39:08,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:08,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381561398] [2022-03-15 15:39:08,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:08,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:08,467 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:08,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381561398] [2022-03-15 15:39:08,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381561398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:08,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:08,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:08,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235324374] [2022-03-15 15:39:08,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:08,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:08,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:08,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:08,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:08,468 INFO L87 Difference]: Start difference. First operand 5221 states and 24697 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:08,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:08,700 INFO L93 Difference]: Finished difference Result 11349 states and 50806 transitions. [2022-03-15 15:39:08,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:08,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:08,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:08,737 INFO L225 Difference]: With dead ends: 11349 [2022-03-15 15:39:08,737 INFO L226 Difference]: Without dead ends: 10796 [2022-03-15 15:39:08,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:08,737 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 163 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:08,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 201 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:08,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10796 states. [2022-03-15 15:39:08,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10796 to 5143. [2022-03-15 15:39:08,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.73901205756515) internal successors, (24368), 5142 states have internal predecessors, (24368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:08,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24368 transitions. [2022-03-15 15:39:08,901 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24368 transitions. Word has length 29 [2022-03-15 15:39:08,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:08,901 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24368 transitions. [2022-03-15 15:39:08,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:08,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24368 transitions. [2022-03-15 15:39:08,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:08,912 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:08,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:08,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1434 [2022-03-15 15:39:08,912 INFO L402 AbstractCegarLoop]: === Iteration 1436 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:08,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:08,912 INFO L85 PathProgramCache]: Analyzing trace with hash -812945889, now seen corresponding path program 1431 times [2022-03-15 15:39:08,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:08,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909509768] [2022-03-15 15:39:08,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:08,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:09,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:09,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:09,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909509768] [2022-03-15 15:39:09,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909509768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:09,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:09,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:09,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504130532] [2022-03-15 15:39:09,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:09,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:09,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:09,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:09,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:09,091 INFO L87 Difference]: Start difference. First operand 5143 states and 24368 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:09,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:09,305 INFO L93 Difference]: Finished difference Result 11175 states and 50121 transitions. [2022-03-15 15:39:09,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:09,305 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:09,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:09,341 INFO L225 Difference]: With dead ends: 11175 [2022-03-15 15:39:09,341 INFO L226 Difference]: Without dead ends: 10698 [2022-03-15 15:39:09,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:09,341 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 163 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:09,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 202 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:09,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10698 states. [2022-03-15 15:39:09,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10698 to 5215. [2022-03-15 15:39:09,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.7265055619486) internal successors, (24644), 5214 states have internal predecessors, (24644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24644 transitions. [2022-03-15 15:39:09,509 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24644 transitions. Word has length 29 [2022-03-15 15:39:09,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:09,509 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24644 transitions. [2022-03-15 15:39:09,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:09,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24644 transitions. [2022-03-15 15:39:09,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:09,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:09,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:09,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1435 [2022-03-15 15:39:09,522 INFO L402 AbstractCegarLoop]: === Iteration 1437 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:09,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:09,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1018292925, now seen corresponding path program 1432 times [2022-03-15 15:39:09,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:09,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403657913] [2022-03-15 15:39:09,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:09,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:09,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:09,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:09,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403657913] [2022-03-15 15:39:09,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403657913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:09,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:09,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:09,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819264407] [2022-03-15 15:39:09,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:09,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:09,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:09,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:09,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:09,641 INFO L87 Difference]: Start difference. First operand 5215 states and 24644 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:09,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:09,862 INFO L93 Difference]: Finished difference Result 10841 states and 48819 transitions. [2022-03-15 15:39:09,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:09,863 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:09,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:09,898 INFO L225 Difference]: With dead ends: 10841 [2022-03-15 15:39:09,898 INFO L226 Difference]: Without dead ends: 10306 [2022-03-15 15:39:09,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:09,898 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 165 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:09,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 195 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:09,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2022-03-15 15:39:10,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 5143. [2022-03-15 15:39:10,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.732010890704006) internal successors, (24332), 5142 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24332 transitions. [2022-03-15 15:39:10,063 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24332 transitions. Word has length 29 [2022-03-15 15:39:10,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:10,063 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24332 transitions. [2022-03-15 15:39:10,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:10,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24332 transitions. [2022-03-15 15:39:10,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:10,074 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:10,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:10,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1436 [2022-03-15 15:39:10,074 INFO L402 AbstractCegarLoop]: === Iteration 1438 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:10,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:10,074 INFO L85 PathProgramCache]: Analyzing trace with hash 170353341, now seen corresponding path program 1433 times [2022-03-15 15:39:10,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:10,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003684613] [2022-03-15 15:39:10,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:10,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:10,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:10,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003684613] [2022-03-15 15:39:10,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003684613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:10,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:10,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:10,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110070267] [2022-03-15 15:39:10,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:10,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:10,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:10,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:10,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:10,250 INFO L87 Difference]: Start difference. First operand 5143 states and 24332 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:10,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:10,444 INFO L93 Difference]: Finished difference Result 11173 states and 50080 transitions. [2022-03-15 15:39:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:10,444 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:10,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:10,481 INFO L225 Difference]: With dead ends: 11173 [2022-03-15 15:39:10,481 INFO L226 Difference]: Without dead ends: 10698 [2022-03-15 15:39:10,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:10,481 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 152 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:10,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 220 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:10,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10698 states. [2022-03-15 15:39:10,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10698 to 5215. [2022-03-15 15:39:10,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5215 states, 5214 states have (on average 4.719601074031454) internal successors, (24608), 5214 states have internal predecessors, (24608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 5215 states and 24608 transitions. [2022-03-15 15:39:10,653 INFO L78 Accepts]: Start accepts. Automaton has 5215 states and 24608 transitions. Word has length 29 [2022-03-15 15:39:10,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:10,653 INFO L470 AbstractCegarLoop]: Abstraction has 5215 states and 24608 transitions. [2022-03-15 15:39:10,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:10,653 INFO L276 IsEmpty]: Start isEmpty. Operand 5215 states and 24608 transitions. [2022-03-15 15:39:10,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:10,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:10,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:10,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1437 [2022-03-15 15:39:10,664 INFO L402 AbstractCegarLoop]: === Iteration 1439 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:10,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:10,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1003606369, now seen corresponding path program 1434 times [2022-03-15 15:39:10,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:10,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871786788] [2022-03-15 15:39:10,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:10,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:10,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:10,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:10,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871786788] [2022-03-15 15:39:10,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871786788] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:10,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:10,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:10,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282357305] [2022-03-15 15:39:10,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:10,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:10,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:10,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:10,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:10,841 INFO L87 Difference]: Start difference. First operand 5215 states and 24608 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:11,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:11,077 INFO L93 Difference]: Finished difference Result 10841 states and 48783 transitions. [2022-03-15 15:39:11,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:11,077 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:11,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:11,110 INFO L225 Difference]: With dead ends: 10841 [2022-03-15 15:39:11,110 INFO L226 Difference]: Without dead ends: 10270 [2022-03-15 15:39:11,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:11,110 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 148 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:11,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 236 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:11,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10270 states. [2022-03-15 15:39:11,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10270 to 5107. [2022-03-15 15:39:11,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5107 states, 5106 states have (on average 4.7395221308264786) internal successors, (24200), 5106 states have internal predecessors, (24200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 24200 transitions. [2022-03-15 15:39:11,269 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 24200 transitions. Word has length 29 [2022-03-15 15:39:11,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:11,270 INFO L470 AbstractCegarLoop]: Abstraction has 5107 states and 24200 transitions. [2022-03-15 15:39:11,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:11,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 24200 transitions. [2022-03-15 15:39:11,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:11,280 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:11,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:11,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1438 [2022-03-15 15:39:11,280 INFO L402 AbstractCegarLoop]: === Iteration 1440 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:11,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:11,281 INFO L85 PathProgramCache]: Analyzing trace with hash 251079451, now seen corresponding path program 1435 times [2022-03-15 15:39:11,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:11,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644393212] [2022-03-15 15:39:11,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:11,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:11,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:11,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644393212] [2022-03-15 15:39:11,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644393212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:11,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:11,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:11,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667556322] [2022-03-15 15:39:11,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:11,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:11,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:11,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:11,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:11,460 INFO L87 Difference]: Start difference. First operand 5107 states and 24200 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:11,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:11,660 INFO L93 Difference]: Finished difference Result 11099 states and 49731 transitions. [2022-03-15 15:39:11,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:11,660 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:11,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:11,696 INFO L225 Difference]: With dead ends: 11099 [2022-03-15 15:39:11,696 INFO L226 Difference]: Without dead ends: 10684 [2022-03-15 15:39:11,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:11,697 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 158 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:11,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 203 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:11,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2022-03-15 15:39:11,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 5179. [2022-03-15 15:39:11,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.731556585554268) internal successors, (24500), 5178 states have internal predecessors, (24500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:11,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24500 transitions. [2022-03-15 15:39:11,865 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24500 transitions. Word has length 29 [2022-03-15 15:39:11,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:11,865 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24500 transitions. [2022-03-15 15:39:11,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:11,866 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24500 transitions. [2022-03-15 15:39:11,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:11,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:11,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:11,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1439 [2022-03-15 15:39:11,876 INFO L402 AbstractCegarLoop]: === Iteration 1441 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:11,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:11,876 INFO L85 PathProgramCache]: Analyzing trace with hash -229822595, now seen corresponding path program 1436 times [2022-03-15 15:39:11,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:11,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465507277] [2022-03-15 15:39:11,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:11,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:12,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:12,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:12,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465507277] [2022-03-15 15:39:12,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465507277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:12,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:12,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:12,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780648958] [2022-03-15 15:39:12,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:12,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:12,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:12,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:12,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:12,040 INFO L87 Difference]: Start difference. First operand 5179 states and 24500 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:12,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:12,282 INFO L93 Difference]: Finished difference Result 11159 states and 49947 transitions. [2022-03-15 15:39:12,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:12,282 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:12,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:12,316 INFO L225 Difference]: With dead ends: 11159 [2022-03-15 15:39:12,317 INFO L226 Difference]: Without dead ends: 10636 [2022-03-15 15:39:12,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:12,317 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 148 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:12,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 243 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:12,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10636 states. [2022-03-15 15:39:12,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10636 to 5131. [2022-03-15 15:39:12,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.7368421052631575) internal successors, (24300), 5130 states have internal predecessors, (24300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:12,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24300 transitions. [2022-03-15 15:39:12,478 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24300 transitions. Word has length 29 [2022-03-15 15:39:12,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:12,478 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24300 transitions. [2022-03-15 15:39:12,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:12,478 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24300 transitions. [2022-03-15 15:39:12,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:12,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:12,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:12,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1440 [2022-03-15 15:39:12,489 INFO L402 AbstractCegarLoop]: === Iteration 1442 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:12,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:12,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1652196989, now seen corresponding path program 1437 times [2022-03-15 15:39:12,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:12,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201372858] [2022-03-15 15:39:12,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:12,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:12,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:12,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:12,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201372858] [2022-03-15 15:39:12,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201372858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:12,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:12,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:12,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609746668] [2022-03-15 15:39:12,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:12,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:12,648 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:12,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:12,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:12,648 INFO L87 Difference]: Start difference. First operand 5131 states and 24300 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:12,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:12,905 INFO L93 Difference]: Finished difference Result 10991 states and 49267 transitions. [2022-03-15 15:39:12,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:12,906 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:12,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:12,941 INFO L225 Difference]: With dead ends: 10991 [2022-03-15 15:39:12,941 INFO L226 Difference]: Without dead ends: 10576 [2022-03-15 15:39:12,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:12,941 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 161 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:12,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 231 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:39:12,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10576 states. [2022-03-15 15:39:13,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10576 to 5179. [2022-03-15 15:39:13,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 4.7269215913480105) internal successors, (24476), 5178 states have internal predecessors, (24476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:13,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 24476 transitions. [2022-03-15 15:39:13,107 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 24476 transitions. Word has length 29 [2022-03-15 15:39:13,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:13,108 INFO L470 AbstractCegarLoop]: Abstraction has 5179 states and 24476 transitions. [2022-03-15 15:39:13,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:13,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 24476 transitions. [2022-03-15 15:39:13,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:13,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:13,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:13,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1441 [2022-03-15 15:39:13,119 INFO L402 AbstractCegarLoop]: === Iteration 1443 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:13,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:13,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2042158717, now seen corresponding path program 1438 times [2022-03-15 15:39:13,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:13,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375722754] [2022-03-15 15:39:13,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:13,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:13,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:13,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375722754] [2022-03-15 15:39:13,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375722754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:13,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:13,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:13,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433501562] [2022-03-15 15:39:13,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:13,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:13,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:13,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:13,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:13,312 INFO L87 Difference]: Start difference. First operand 5179 states and 24476 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:13,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:13,506 INFO L93 Difference]: Finished difference Result 10719 states and 48258 transitions. [2022-03-15 15:39:13,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:13,507 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:13,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:13,543 INFO L225 Difference]: With dead ends: 10719 [2022-03-15 15:39:13,543 INFO L226 Difference]: Without dead ends: 10208 [2022-03-15 15:39:13,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:13,544 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 151 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:13,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 210 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:13,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10208 states. [2022-03-15 15:39:13,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10208 to 5131. [2022-03-15 15:39:13,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5131 states, 5130 states have (on average 4.732163742690059) internal successors, (24276), 5130 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:13,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5131 states to 5131 states and 24276 transitions. [2022-03-15 15:39:13,708 INFO L78 Accepts]: Start accepts. Automaton has 5131 states and 24276 transitions. Word has length 29 [2022-03-15 15:39:13,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:13,708 INFO L470 AbstractCegarLoop]: Abstraction has 5131 states and 24276 transitions. [2022-03-15 15:39:13,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:13,708 INFO L276 IsEmpty]: Start isEmpty. Operand 5131 states and 24276 transitions. [2022-03-15 15:39:13,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:13,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:13,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:13,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1442 [2022-03-15 15:39:13,719 INFO L402 AbstractCegarLoop]: === Iteration 1444 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:13,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:13,719 INFO L85 PathProgramCache]: Analyzing trace with hash 862810719, now seen corresponding path program 1439 times [2022-03-15 15:39:13,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:13,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662119751] [2022-03-15 15:39:13,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:13,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:13,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:13,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:13,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662119751] [2022-03-15 15:39:13,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662119751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:13,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:13,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:13,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107110966] [2022-03-15 15:39:13,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:13,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:13,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:13,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:13,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:13,852 INFO L87 Difference]: Start difference. First operand 5131 states and 24276 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:14,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:14,074 INFO L93 Difference]: Finished difference Result 11075 states and 49631 transitions. [2022-03-15 15:39:14,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:14,074 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:14,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:14,109 INFO L225 Difference]: With dead ends: 11075 [2022-03-15 15:39:14,109 INFO L226 Difference]: Without dead ends: 10600 [2022-03-15 15:39:14,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:14,109 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 160 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:14,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 204 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:14,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10600 states. [2022-03-15 15:39:14,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10600 to 5203. [2022-03-15 15:39:14,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 4.719723183391004) internal successors, (24552), 5202 states have internal predecessors, (24552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:14,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 24552 transitions. [2022-03-15 15:39:14,264 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 24552 transitions. Word has length 29 [2022-03-15 15:39:14,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:14,264 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 24552 transitions. [2022-03-15 15:39:14,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:14,264 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 24552 transitions. [2022-03-15 15:39:14,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:14,274 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:14,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:14,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1443 [2022-03-15 15:39:14,275 INFO L402 AbstractCegarLoop]: === Iteration 1445 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:14,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:14,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1170201923, now seen corresponding path program 1440 times [2022-03-15 15:39:14,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:14,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431287189] [2022-03-15 15:39:14,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:14,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:14,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:14,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:14,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431287189] [2022-03-15 15:39:14,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431287189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:14,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:14,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:14,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380848762] [2022-03-15 15:39:14,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:14,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:14,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:14,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:14,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:14,379 INFO L87 Difference]: Start difference. First operand 5203 states and 24552 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:14,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:14,573 INFO L93 Difference]: Finished difference Result 10743 states and 48334 transitions. [2022-03-15 15:39:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:14,573 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:14,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:14,605 INFO L225 Difference]: With dead ends: 10743 [2022-03-15 15:39:14,605 INFO L226 Difference]: Without dead ends: 10146 [2022-03-15 15:39:14,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:14,605 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 140 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:14,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 263 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:14,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10146 states. [2022-03-15 15:39:14,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10146 to 5069. [2022-03-15 15:39:14,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 5068 states have (on average 4.7571033938437255) internal successors, (24109), 5068 states have internal predecessors, (24109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:14,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 24109 transitions. [2022-03-15 15:39:14,746 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 24109 transitions. Word has length 29 [2022-03-15 15:39:14,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:14,747 INFO L470 AbstractCegarLoop]: Abstraction has 5069 states and 24109 transitions. [2022-03-15 15:39:14,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:14,747 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 24109 transitions. [2022-03-15 15:39:14,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:14,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:14,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:14,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1444 [2022-03-15 15:39:14,757 INFO L402 AbstractCegarLoop]: === Iteration 1446 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:14,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:14,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1479110397, now seen corresponding path program 1441 times [2022-03-15 15:39:14,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:14,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512882020] [2022-03-15 15:39:14,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:14,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:14,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:14,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:14,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512882020] [2022-03-15 15:39:14,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512882020] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:14,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:14,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:14,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983570930] [2022-03-15 15:39:14,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:14,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:14,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:14,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:14,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:14,865 INFO L87 Difference]: Start difference. First operand 5069 states and 24109 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:15,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:15,047 INFO L93 Difference]: Finished difference Result 11838 states and 52902 transitions. [2022-03-15 15:39:15,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:15,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:15,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:15,083 INFO L225 Difference]: With dead ends: 11838 [2022-03-15 15:39:15,083 INFO L226 Difference]: Without dead ends: 11423 [2022-03-15 15:39:15,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:15,083 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 162 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:15,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 225 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:15,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11423 states. [2022-03-15 15:39:15,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11423 to 5241. [2022-03-15 15:39:15,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5241 states, 5240 states have (on average 4.74675572519084) internal successors, (24873), 5240 states have internal predecessors, (24873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:15,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5241 states to 5241 states and 24873 transitions. [2022-03-15 15:39:15,243 INFO L78 Accepts]: Start accepts. Automaton has 5241 states and 24873 transitions. Word has length 29 [2022-03-15 15:39:15,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:15,243 INFO L470 AbstractCegarLoop]: Abstraction has 5241 states and 24873 transitions. [2022-03-15 15:39:15,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:15,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5241 states and 24873 transitions. [2022-03-15 15:39:15,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:15,253 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:15,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:15,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1445 [2022-03-15 15:39:15,254 INFO L402 AbstractCegarLoop]: === Iteration 1447 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:15,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:15,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1830652869, now seen corresponding path program 1442 times [2022-03-15 15:39:15,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:15,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652414023] [2022-03-15 15:39:15,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:15,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:15,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:15,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:15,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652414023] [2022-03-15 15:39:15,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652414023] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:15,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:15,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:15,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561602354] [2022-03-15 15:39:15,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:15,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:15,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:15,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:15,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:15,363 INFO L87 Difference]: Start difference. First operand 5241 states and 24873 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:15,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:15,515 INFO L93 Difference]: Finished difference Result 11965 states and 53381 transitions. [2022-03-15 15:39:15,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:15,515 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:15,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:15,548 INFO L225 Difference]: With dead ends: 11965 [2022-03-15 15:39:15,549 INFO L226 Difference]: Without dead ends: 11343 [2022-03-15 15:39:15,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:15,549 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 191 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:15,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 184 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:15,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11343 states. [2022-03-15 15:39:15,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11343 to 5161. [2022-03-15 15:39:15,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.750581395348838) internal successors, (24513), 5160 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:15,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24513 transitions. [2022-03-15 15:39:15,690 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24513 transitions. Word has length 29 [2022-03-15 15:39:15,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:15,690 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24513 transitions. [2022-03-15 15:39:15,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:15,691 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24513 transitions. [2022-03-15 15:39:15,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:15,700 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:15,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:15,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1446 [2022-03-15 15:39:15,700 INFO L402 AbstractCegarLoop]: === Iteration 1448 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:15,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:15,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1698912253, now seen corresponding path program 1443 times [2022-03-15 15:39:15,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:15,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062185170] [2022-03-15 15:39:15,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:15,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:15,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:15,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062185170] [2022-03-15 15:39:15,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062185170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:15,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:15,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:15,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334947012] [2022-03-15 15:39:15,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:15,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:15,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:15,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:15,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:15,877 INFO L87 Difference]: Start difference. First operand 5161 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:16,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:16,078 INFO L93 Difference]: Finished difference Result 11741 states and 52460 transitions. [2022-03-15 15:39:16,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:16,078 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:16,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:16,114 INFO L225 Difference]: With dead ends: 11741 [2022-03-15 15:39:16,114 INFO L226 Difference]: Without dead ends: 11326 [2022-03-15 15:39:16,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:16,114 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 170 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:16,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 203 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:16,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11326 states. [2022-03-15 15:39:16,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11326 to 5209. [2022-03-15 15:39:16,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.740591397849462) internal successors, (24689), 5208 states have internal predecessors, (24689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:16,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24689 transitions. [2022-03-15 15:39:16,270 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24689 transitions. Word has length 29 [2022-03-15 15:39:16,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:16,270 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24689 transitions. [2022-03-15 15:39:16,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:16,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24689 transitions. [2022-03-15 15:39:16,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:16,280 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:16,280 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:16,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1447 [2022-03-15 15:39:16,281 INFO L402 AbstractCegarLoop]: === Iteration 1449 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:16,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:16,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1469625243, now seen corresponding path program 1444 times [2022-03-15 15:39:16,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:16,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338510885] [2022-03-15 15:39:16,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:16,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:16,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:16,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338510885] [2022-03-15 15:39:16,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338510885] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:16,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:16,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:16,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771026041] [2022-03-15 15:39:16,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:16,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:16,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:16,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:16,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:16,402 INFO L87 Difference]: Start difference. First operand 5209 states and 24689 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:16,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:16,607 INFO L93 Difference]: Finished difference Result 11803 states and 52681 transitions. [2022-03-15 15:39:16,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:16,607 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:16,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:16,644 INFO L225 Difference]: With dead ends: 11803 [2022-03-15 15:39:16,644 INFO L226 Difference]: Without dead ends: 11278 [2022-03-15 15:39:16,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:16,644 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 153 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:16,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 225 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:16,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11278 states. [2022-03-15 15:39:16,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11278 to 5161. [2022-03-15 15:39:16,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.745930232558139) internal successors, (24489), 5160 states have internal predecessors, (24489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:16,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24489 transitions. [2022-03-15 15:39:16,806 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24489 transitions. Word has length 29 [2022-03-15 15:39:16,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:16,806 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24489 transitions. [2022-03-15 15:39:16,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24489 transitions. [2022-03-15 15:39:16,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:16,817 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:16,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:16,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1448 [2022-03-15 15:39:16,817 INFO L402 AbstractCegarLoop]: === Iteration 1450 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:16,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:16,817 INFO L85 PathProgramCache]: Analyzing trace with hash 264875687, now seen corresponding path program 1445 times [2022-03-15 15:39:16,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:16,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894638033] [2022-03-15 15:39:16,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:16,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:16,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:16,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894638033] [2022-03-15 15:39:16,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894638033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:16,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:16,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:16,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876104659] [2022-03-15 15:39:16,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:16,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:16,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:16,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:16,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:16,965 INFO L87 Difference]: Start difference. First operand 5161 states and 24489 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:17,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:17,160 INFO L93 Difference]: Finished difference Result 12090 states and 53896 transitions. [2022-03-15 15:39:17,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:17,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:17,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:17,202 INFO L225 Difference]: With dead ends: 12090 [2022-03-15 15:39:17,202 INFO L226 Difference]: Without dead ends: 11548 [2022-03-15 15:39:17,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:17,202 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 171 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:17,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 208 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:17,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11548 states. [2022-03-15 15:39:17,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11548 to 5304. [2022-03-15 15:39:17,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5304 states, 5303 states have (on average 4.71582123326419) internal successors, (25008), 5303 states have internal predecessors, (25008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:17,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5304 states to 5304 states and 25008 transitions. [2022-03-15 15:39:17,375 INFO L78 Accepts]: Start accepts. Automaton has 5304 states and 25008 transitions. Word has length 29 [2022-03-15 15:39:17,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:17,375 INFO L470 AbstractCegarLoop]: Abstraction has 5304 states and 25008 transitions. [2022-03-15 15:39:17,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:17,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5304 states and 25008 transitions. [2022-03-15 15:39:17,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:17,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:17,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:17,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1449 [2022-03-15 15:39:17,386 INFO L402 AbstractCegarLoop]: === Iteration 1451 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:17,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:17,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1778461307, now seen corresponding path program 1446 times [2022-03-15 15:39:17,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:17,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309582843] [2022-03-15 15:39:17,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:17,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:17,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:17,535 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:17,535 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309582843] [2022-03-15 15:39:17,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309582843] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:17,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:17,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:17,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810879499] [2022-03-15 15:39:17,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:17,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:17,535 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:17,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:17,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:17,536 INFO L87 Difference]: Start difference. First operand 5304 states and 25008 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:17,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:17,759 INFO L93 Difference]: Finished difference Result 12025 states and 53527 transitions. [2022-03-15 15:39:17,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:17,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:17,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:17,797 INFO L225 Difference]: With dead ends: 12025 [2022-03-15 15:39:17,797 INFO L226 Difference]: Without dead ends: 11349 [2022-03-15 15:39:17,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:17,797 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 157 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:17,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 209 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:17,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11349 states. [2022-03-15 15:39:17,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11349 to 5105. [2022-03-15 15:39:17,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.752547021943574) internal successors, (24257), 5104 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:17,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24257 transitions. [2022-03-15 15:39:17,977 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24257 transitions. Word has length 29 [2022-03-15 15:39:17,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:17,977 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24257 transitions. [2022-03-15 15:39:17,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:17,977 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24257 transitions. [2022-03-15 15:39:17,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:17,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:17,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:17,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1450 [2022-03-15 15:39:17,988 INFO L402 AbstractCegarLoop]: === Iteration 1452 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:17,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:17,988 INFO L85 PathProgramCache]: Analyzing trace with hash 777768101, now seen corresponding path program 1447 times [2022-03-15 15:39:17,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:17,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751186631] [2022-03-15 15:39:17,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:17,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:18,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:18,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751186631] [2022-03-15 15:39:18,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751186631] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:18,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:18,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:18,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926913853] [2022-03-15 15:39:18,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:18,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:18,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:18,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:18,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:18,137 INFO L87 Difference]: Start difference. First operand 5105 states and 24257 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:18,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:18,379 INFO L93 Difference]: Finished difference Result 11787 states and 52690 transitions. [2022-03-15 15:39:18,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:18,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:18,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:18,418 INFO L225 Difference]: With dead ends: 11787 [2022-03-15 15:39:18,418 INFO L226 Difference]: Without dead ends: 11372 [2022-03-15 15:39:18,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:18,418 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 173 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:18,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 208 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:18,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11372 states. [2022-03-15 15:39:18,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11372 to 5225. [2022-03-15 15:39:18,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 4.7436830015313936) internal successors, (24781), 5224 states have internal predecessors, (24781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:18,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 24781 transitions. [2022-03-15 15:39:18,591 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 24781 transitions. Word has length 29 [2022-03-15 15:39:18,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:18,591 INFO L470 AbstractCegarLoop]: Abstraction has 5225 states and 24781 transitions. [2022-03-15 15:39:18,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:18,591 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 24781 transitions. [2022-03-15 15:39:18,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:18,602 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:18,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:18,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1451 [2022-03-15 15:39:18,602 INFO L402 AbstractCegarLoop]: === Iteration 1453 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:18,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:18,602 INFO L85 PathProgramCache]: Analyzing trace with hash -207435929, now seen corresponding path program 1448 times [2022-03-15 15:39:18,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:18,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608778310] [2022-03-15 15:39:18,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:18,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:18,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:18,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:18,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608778310] [2022-03-15 15:39:18,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608778310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:18,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:18,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:18,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270204857] [2022-03-15 15:39:18,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:18,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:18,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:18,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:18,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:18,797 INFO L87 Difference]: Start difference. First operand 5225 states and 24781 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:19,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:19,017 INFO L93 Difference]: Finished difference Result 11914 states and 53169 transitions. [2022-03-15 15:39:19,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:19,018 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:19,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:19,057 INFO L225 Difference]: With dead ends: 11914 [2022-03-15 15:39:19,057 INFO L226 Difference]: Without dead ends: 11292 [2022-03-15 15:39:19,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:19,057 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 169 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:19,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 200 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:19,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11292 states. [2022-03-15 15:39:19,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11292 to 5145. [2022-03-15 15:39:19,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.747472783825817) internal successors, (24421), 5144 states have internal predecessors, (24421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:19,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24421 transitions. [2022-03-15 15:39:19,234 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24421 transitions. Word has length 29 [2022-03-15 15:39:19,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:19,234 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24421 transitions. [2022-03-15 15:39:19,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:19,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24421 transitions. [2022-03-15 15:39:19,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:19,245 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:19,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:19,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1452 [2022-03-15 15:39:19,245 INFO L402 AbstractCegarLoop]: === Iteration 1454 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:19,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:19,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1109735357, now seen corresponding path program 1449 times [2022-03-15 15:39:19,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:19,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470513520] [2022-03-15 15:39:19,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:19,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:19,376 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:19,376 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470513520] [2022-03-15 15:39:19,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470513520] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:19,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:19,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:19,377 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042127592] [2022-03-15 15:39:19,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:19,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:19,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:19,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:19,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:19,377 INFO L87 Difference]: Start difference. First operand 5145 states and 24421 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:19,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:19,566 INFO L93 Difference]: Finished difference Result 11688 states and 52243 transitions. [2022-03-15 15:39:19,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:19,566 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:19,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:19,599 INFO L225 Difference]: With dead ends: 11688 [2022-03-15 15:39:19,599 INFO L226 Difference]: Without dead ends: 11273 [2022-03-15 15:39:19,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:19,600 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 167 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:19,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 214 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:19,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11273 states. [2022-03-15 15:39:19,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11273 to 5193. [2022-03-15 15:39:19,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5193 states, 5192 states have (on average 4.737480739599384) internal successors, (24597), 5192 states have internal predecessors, (24597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:19,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 5193 states and 24597 transitions. [2022-03-15 15:39:19,752 INFO L78 Accepts]: Start accepts. Automaton has 5193 states and 24597 transitions. Word has length 29 [2022-03-15 15:39:19,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:19,752 INFO L470 AbstractCegarLoop]: Abstraction has 5193 states and 24597 transitions. [2022-03-15 15:39:19,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5193 states and 24597 transitions. [2022-03-15 15:39:19,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:19,762 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:19,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:19,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1453 [2022-03-15 15:39:19,762 INFO L402 AbstractCegarLoop]: === Iteration 1455 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:19,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:19,763 INFO L85 PathProgramCache]: Analyzing trace with hash -2111792219, now seen corresponding path program 1450 times [2022-03-15 15:39:19,763 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:19,763 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186140834] [2022-03-15 15:39:19,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:19,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:19,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:19,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:19,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186140834] [2022-03-15 15:39:19,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186140834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:19,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:19,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:19,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290954584] [2022-03-15 15:39:19,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:19,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:19,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:19,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:19,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:19,915 INFO L87 Difference]: Start difference. First operand 5193 states and 24597 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:20,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:20,102 INFO L93 Difference]: Finished difference Result 11748 states and 52459 transitions. [2022-03-15 15:39:20,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:20,102 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:20,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:20,137 INFO L225 Difference]: With dead ends: 11748 [2022-03-15 15:39:20,138 INFO L226 Difference]: Without dead ends: 11225 [2022-03-15 15:39:20,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:20,138 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 158 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:20,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 200 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:20,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11225 states. [2022-03-15 15:39:20,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11225 to 5145. [2022-03-15 15:39:20,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5145 states, 5144 states have (on average 4.742807153965785) internal successors, (24397), 5144 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:20,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5145 states to 5145 states and 24397 transitions. [2022-03-15 15:39:20,283 INFO L78 Accepts]: Start accepts. Automaton has 5145 states and 24397 transitions. Word has length 29 [2022-03-15 15:39:20,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:20,283 INFO L470 AbstractCegarLoop]: Abstraction has 5145 states and 24397 transitions. [2022-03-15 15:39:20,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:20,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5145 states and 24397 transitions. [2022-03-15 15:39:20,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:20,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:20,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:20,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1454 [2022-03-15 15:39:20,293 INFO L402 AbstractCegarLoop]: === Iteration 1456 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:20,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:20,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1721688601, now seen corresponding path program 1451 times [2022-03-15 15:39:20,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:20,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181384412] [2022-03-15 15:39:20,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:20,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:20,423 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:20,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181384412] [2022-03-15 15:39:20,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181384412] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:20,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:20,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:20,424 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304027275] [2022-03-15 15:39:20,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:20,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:20,424 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:20,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:20,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:20,424 INFO L87 Difference]: Start difference. First operand 5145 states and 24397 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:20,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:20,596 INFO L93 Difference]: Finished difference Result 12004 states and 53564 transitions. [2022-03-15 15:39:20,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:20,596 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:20,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:20,634 INFO L225 Difference]: With dead ends: 12004 [2022-03-15 15:39:20,634 INFO L226 Difference]: Without dead ends: 11462 [2022-03-15 15:39:20,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:20,634 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 168 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:20,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 212 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:20,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11462 states. [2022-03-15 15:39:20,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11462 to 5255. [2022-03-15 15:39:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 4.72059383326989) internal successors, (24802), 5254 states have internal predecessors, (24802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:20,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 24802 transitions. [2022-03-15 15:39:20,839 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 24802 transitions. Word has length 29 [2022-03-15 15:39:20,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:20,840 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 24802 transitions. [2022-03-15 15:39:20,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:20,840 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 24802 transitions. [2022-03-15 15:39:20,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:20,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:20,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:20,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1455 [2022-03-15 15:39:20,851 INFO L402 AbstractCegarLoop]: === Iteration 1457 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:20,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:20,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1832326597, now seen corresponding path program 1452 times [2022-03-15 15:39:20,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:20,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047226991] [2022-03-15 15:39:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:20,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:20,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:20,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047226991] [2022-03-15 15:39:20,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047226991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:20,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:20,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:20,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412568616] [2022-03-15 15:39:20,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:20,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:20,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:20,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:20,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:20,991 INFO L87 Difference]: Start difference. First operand 5255 states and 24802 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:21,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:21,230 INFO L93 Difference]: Finished difference Result 11937 states and 53191 transitions. [2022-03-15 15:39:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:21,230 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:21,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:21,267 INFO L225 Difference]: With dead ends: 11937 [2022-03-15 15:39:21,268 INFO L226 Difference]: Without dead ends: 11312 [2022-03-15 15:39:21,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:21,268 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 168 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:21,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 192 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:21,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11312 states. [2022-03-15 15:39:21,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11312 to 5105. [2022-03-15 15:39:21,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.748628526645768) internal successors, (24237), 5104 states have internal predecessors, (24237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:21,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24237 transitions. [2022-03-15 15:39:21,430 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24237 transitions. Word has length 29 [2022-03-15 15:39:21,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:21,430 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24237 transitions. [2022-03-15 15:39:21,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:21,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24237 transitions. [2022-03-15 15:39:21,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:21,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:21,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:21,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1456 [2022-03-15 15:39:21,441 INFO L402 AbstractCegarLoop]: === Iteration 1458 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:21,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:21,441 INFO L85 PathProgramCache]: Analyzing trace with hash 2038759235, now seen corresponding path program 1453 times [2022-03-15 15:39:21,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:21,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092188331] [2022-03-15 15:39:21,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:21,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:21,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:21,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092188331] [2022-03-15 15:39:21,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092188331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:21,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:21,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:21,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350134295] [2022-03-15 15:39:21,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:21,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:21,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:21,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:21,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:21,604 INFO L87 Difference]: Start difference. First operand 5105 states and 24237 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:21,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:21,785 INFO L93 Difference]: Finished difference Result 11545 states and 51642 transitions. [2022-03-15 15:39:21,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:21,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:21,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:21,818 INFO L225 Difference]: With dead ends: 11545 [2022-03-15 15:39:21,818 INFO L226 Difference]: Without dead ends: 11130 [2022-03-15 15:39:21,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:21,818 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 172 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:21,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 199 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11130 states. [2022-03-15 15:39:21,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11130 to 5177. [2022-03-15 15:39:21,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.740533230293663) internal successors, (24537), 5176 states have internal predecessors, (24537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:21,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24537 transitions. [2022-03-15 15:39:21,955 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24537 transitions. Word has length 29 [2022-03-15 15:39:21,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:21,955 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24537 transitions. [2022-03-15 15:39:21,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:21,955 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24537 transitions. [2022-03-15 15:39:21,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:21,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:21,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:21,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1457 [2022-03-15 15:39:21,965 INFO L402 AbstractCegarLoop]: === Iteration 1459 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:21,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:21,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2026921051, now seen corresponding path program 1454 times [2022-03-15 15:39:21,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:21,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167557028] [2022-03-15 15:39:21,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:21,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:22,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:22,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:22,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167557028] [2022-03-15 15:39:22,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167557028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:22,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:22,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:22,116 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965521180] [2022-03-15 15:39:22,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:22,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:22,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:22,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:22,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:22,116 INFO L87 Difference]: Start difference. First operand 5177 states and 24537 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:22,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:22,319 INFO L93 Difference]: Finished difference Result 11607 states and 51863 transitions. [2022-03-15 15:39:22,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:22,319 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:22,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:22,352 INFO L225 Difference]: With dead ends: 11607 [2022-03-15 15:39:22,352 INFO L226 Difference]: Without dead ends: 11082 [2022-03-15 15:39:22,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:22,352 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 163 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:22,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 200 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:22,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11082 states. [2022-03-15 15:39:22,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11082 to 5129. [2022-03-15 15:39:22,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.745904836193448) internal successors, (24337), 5128 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:22,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24337 transitions. [2022-03-15 15:39:22,487 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24337 transitions. Word has length 29 [2022-03-15 15:39:22,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:22,487 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24337 transitions. [2022-03-15 15:39:22,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:22,487 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24337 transitions. [2022-03-15 15:39:22,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:22,496 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:22,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:22,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1458 [2022-03-15 15:39:22,497 INFO L402 AbstractCegarLoop]: === Iteration 1460 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:22,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:22,497 INFO L85 PathProgramCache]: Analyzing trace with hash 864799525, now seen corresponding path program 1455 times [2022-03-15 15:39:22,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:22,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145085174] [2022-03-15 15:39:22,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:22,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:22,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:22,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:22,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145085174] [2022-03-15 15:39:22,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145085174] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:22,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:22,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:22,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509417248] [2022-03-15 15:39:22,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:22,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:22,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:22,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:22,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:22,639 INFO L87 Difference]: Start difference. First operand 5129 states and 24337 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:22,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:22,837 INFO L93 Difference]: Finished difference Result 11543 states and 51613 transitions. [2022-03-15 15:39:22,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:22,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:22,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:22,869 INFO L225 Difference]: With dead ends: 11543 [2022-03-15 15:39:22,869 INFO L226 Difference]: Without dead ends: 11128 [2022-03-15 15:39:22,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:22,869 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 169 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:22,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 209 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:22,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11128 states. [2022-03-15 15:39:22,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11128 to 5177. [2022-03-15 15:39:22,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.735896445131376) internal successors, (24513), 5176 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:23,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24513 transitions. [2022-03-15 15:39:23,004 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24513 transitions. Word has length 29 [2022-03-15 15:39:23,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:23,004 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24513 transitions. [2022-03-15 15:39:23,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:23,004 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24513 transitions. [2022-03-15 15:39:23,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:23,014 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:23,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:23,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1459 [2022-03-15 15:39:23,014 INFO L402 AbstractCegarLoop]: === Iteration 1461 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:23,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:23,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1406988965, now seen corresponding path program 1456 times [2022-03-15 15:39:23,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:23,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700803347] [2022-03-15 15:39:23,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:23,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:23,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:23,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:23,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700803347] [2022-03-15 15:39:23,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700803347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:23,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:23,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:23,166 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284181034] [2022-03-15 15:39:23,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:23,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:23,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:23,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:23,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:23,167 INFO L87 Difference]: Start difference. First operand 5177 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:23,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:23,378 INFO L93 Difference]: Finished difference Result 11603 states and 51829 transitions. [2022-03-15 15:39:23,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:23,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:23,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:23,415 INFO L225 Difference]: With dead ends: 11603 [2022-03-15 15:39:23,415 INFO L226 Difference]: Without dead ends: 11080 [2022-03-15 15:39:23,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:23,416 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 162 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:23,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 214 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:23,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11080 states. [2022-03-15 15:39:23,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11080 to 5129. [2022-03-15 15:39:23,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.741224648985959) internal successors, (24313), 5128 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:23,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24313 transitions. [2022-03-15 15:39:23,582 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24313 transitions. Word has length 29 [2022-03-15 15:39:23,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:23,582 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24313 transitions. [2022-03-15 15:39:23,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:23,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24313 transitions. [2022-03-15 15:39:23,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:23,593 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:23,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:23,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1460 [2022-03-15 15:39:23,593 INFO L402 AbstractCegarLoop]: === Iteration 1462 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:23,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:23,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1364076167, now seen corresponding path program 1457 times [2022-03-15 15:39:23,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:23,593 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846929541] [2022-03-15 15:39:23,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:23,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:23,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:23,739 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:23,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846929541] [2022-03-15 15:39:23,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846929541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:23,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:23,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:23,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133175000] [2022-03-15 15:39:23,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:23,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:23,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:23,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:23,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:23,739 INFO L87 Difference]: Start difference. First operand 5129 states and 24313 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:23,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:23,955 INFO L93 Difference]: Finished difference Result 11697 states and 52274 transitions. [2022-03-15 15:39:23,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:23,955 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:23,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:23,990 INFO L225 Difference]: With dead ends: 11697 [2022-03-15 15:39:23,990 INFO L226 Difference]: Without dead ends: 11220 [2022-03-15 15:39:23,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:23,990 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 160 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:23,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 212 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:24,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11220 states. [2022-03-15 15:39:24,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11220 to 5207. [2022-03-15 15:39:24,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.726469458317326) internal successors, (24606), 5206 states have internal predecessors, (24606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:24,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24606 transitions. [2022-03-15 15:39:24,132 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24606 transitions. Word has length 29 [2022-03-15 15:39:24,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:24,133 INFO L470 AbstractCegarLoop]: Abstraction has 5207 states and 24606 transitions. [2022-03-15 15:39:24,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:24,133 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24606 transitions. [2022-03-15 15:39:24,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:24,142 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:24,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:24,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1461 [2022-03-15 15:39:24,142 INFO L402 AbstractCegarLoop]: === Iteration 1463 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:24,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:24,143 INFO L85 PathProgramCache]: Analyzing trace with hash -28068379, now seen corresponding path program 1458 times [2022-03-15 15:39:24,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:24,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322241517] [2022-03-15 15:39:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:24,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:24,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:24,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:24,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322241517] [2022-03-15 15:39:24,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322241517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:24,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:24,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:24,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974194215] [2022-03-15 15:39:24,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:24,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:24,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:24,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:24,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:24,312 INFO L87 Difference]: Start difference. First operand 5207 states and 24606 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:24,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:24,528 INFO L93 Difference]: Finished difference Result 11695 states and 52191 transitions. [2022-03-15 15:39:24,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:24,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:24,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:24,560 INFO L225 Difference]: With dead ends: 11695 [2022-03-15 15:39:24,560 INFO L226 Difference]: Without dead ends: 11118 [2022-03-15 15:39:24,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:24,560 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 162 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:24,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 229 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:24,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11118 states. [2022-03-15 15:39:24,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11118 to 5105. [2022-03-15 15:39:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.746277429467084) internal successors, (24225), 5104 states have internal predecessors, (24225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:24,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24225 transitions. [2022-03-15 15:39:24,702 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24225 transitions. Word has length 29 [2022-03-15 15:39:24,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:24,702 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24225 transitions. [2022-03-15 15:39:24,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:24,703 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24225 transitions. [2022-03-15 15:39:24,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:24,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:24,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:24,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1462 [2022-03-15 15:39:24,712 INFO L402 AbstractCegarLoop]: === Iteration 1464 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:24,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:24,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1919299657, now seen corresponding path program 1459 times [2022-03-15 15:39:24,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:24,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61610679] [2022-03-15 15:39:24,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:24,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:24,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:24,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:24,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61610679] [2022-03-15 15:39:24,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61610679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:24,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:24,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:24,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153872057] [2022-03-15 15:39:24,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:24,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:24,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:24,892 INFO L87 Difference]: Start difference. First operand 5105 states and 24225 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:25,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:25,100 INFO L93 Difference]: Finished difference Result 12241 states and 54587 transitions. [2022-03-15 15:39:25,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:25,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:25,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:25,135 INFO L225 Difference]: With dead ends: 12241 [2022-03-15 15:39:25,136 INFO L226 Difference]: Without dead ends: 11699 [2022-03-15 15:39:25,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:25,136 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 164 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:25,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 207 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:25,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11699 states. [2022-03-15 15:39:25,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11699 to 5335. [2022-03-15 15:39:25,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 4.713348331458568) internal successors, (25141), 5334 states have internal predecessors, (25141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:25,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 25141 transitions. [2022-03-15 15:39:25,294 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 25141 transitions. Word has length 29 [2022-03-15 15:39:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:25,294 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 25141 transitions. [2022-03-15 15:39:25,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:25,294 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 25141 transitions. [2022-03-15 15:39:25,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:25,304 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:25,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:25,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1463 [2022-03-15 15:39:25,304 INFO L402 AbstractCegarLoop]: === Iteration 1465 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:25,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:25,304 INFO L85 PathProgramCache]: Analyzing trace with hash -124037337, now seen corresponding path program 1460 times [2022-03-15 15:39:25,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:25,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643097036] [2022-03-15 15:39:25,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:25,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:25,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:25,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643097036] [2022-03-15 15:39:25,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643097036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:25,419 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:25,419 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:25,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672116801] [2022-03-15 15:39:25,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:25,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:25,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:25,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:25,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:25,420 INFO L87 Difference]: Start difference. First operand 5335 states and 25141 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:25,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:25,608 INFO L93 Difference]: Finished difference Result 12176 states and 54218 transitions. [2022-03-15 15:39:25,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:25,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:25,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:25,643 INFO L225 Difference]: With dead ends: 12176 [2022-03-15 15:39:25,644 INFO L226 Difference]: Without dead ends: 11556 [2022-03-15 15:39:25,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:25,644 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 173 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:25,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 222 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:25,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11556 states. [2022-03-15 15:39:25,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11556 to 5192. [2022-03-15 15:39:25,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 4.7295318821036405) internal successors, (24551), 5191 states have internal predecessors, (24551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:25,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 24551 transitions. [2022-03-15 15:39:25,794 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 24551 transitions. Word has length 29 [2022-03-15 15:39:25,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:25,794 INFO L470 AbstractCegarLoop]: Abstraction has 5192 states and 24551 transitions. [2022-03-15 15:39:25,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:25,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 24551 transitions. [2022-03-15 15:39:25,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:25,804 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:25,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:25,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1464 [2022-03-15 15:39:25,804 INFO L402 AbstractCegarLoop]: === Iteration 1466 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:25,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:25,804 INFO L85 PathProgramCache]: Analyzing trace with hash -196779993, now seen corresponding path program 1461 times [2022-03-15 15:39:25,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:25,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54140070] [2022-03-15 15:39:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:25,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:25,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:25,918 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:25,918 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54140070] [2022-03-15 15:39:25,918 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54140070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:25,918 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:25,918 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:25,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117400028] [2022-03-15 15:39:25,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:25,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:25,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:25,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:25,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:25,918 INFO L87 Difference]: Start difference. First operand 5192 states and 24551 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:26,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:26,082 INFO L93 Difference]: Finished difference Result 12206 states and 54396 transitions. [2022-03-15 15:39:26,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:26,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:26,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:26,119 INFO L225 Difference]: With dead ends: 12206 [2022-03-15 15:39:26,119 INFO L226 Difference]: Without dead ends: 11664 [2022-03-15 15:39:26,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:26,119 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 163 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:26,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 207 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:26,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11664 states. [2022-03-15 15:39:26,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11664 to 5302. [2022-03-15 15:39:26,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 5301 states have (on average 4.707790982833427) internal successors, (24956), 5301 states have internal predecessors, (24956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:26,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 24956 transitions. [2022-03-15 15:39:26,263 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 24956 transitions. Word has length 29 [2022-03-15 15:39:26,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:26,263 INFO L470 AbstractCegarLoop]: Abstraction has 5302 states and 24956 transitions. [2022-03-15 15:39:26,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:26,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 24956 transitions. [2022-03-15 15:39:26,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:26,273 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:26,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:26,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1465 [2022-03-15 15:39:26,273 INFO L402 AbstractCegarLoop]: === Iteration 1467 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:26,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:26,273 INFO L85 PathProgramCache]: Analyzing trace with hash 359008295, now seen corresponding path program 1462 times [2022-03-15 15:39:26,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:26,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340475340] [2022-03-15 15:39:26,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:26,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:26,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:26,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340475340] [2022-03-15 15:39:26,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340475340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:26,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:26,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:26,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212801845] [2022-03-15 15:39:26,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:26,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:26,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:26,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:26,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:26,405 INFO L87 Difference]: Start difference. First operand 5302 states and 24956 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:26,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:26,611 INFO L93 Difference]: Finished difference Result 12139 states and 54023 transitions. [2022-03-15 15:39:26,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:26,611 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:26,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:26,645 INFO L225 Difference]: With dead ends: 12139 [2022-03-15 15:39:26,645 INFO L226 Difference]: Without dead ends: 11554 [2022-03-15 15:39:26,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:26,645 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 154 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:26,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 214 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:26,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11554 states. [2022-03-15 15:39:26,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11554 to 5192. [2022-03-15 15:39:26,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 4.7189366210749375) internal successors, (24496), 5191 states have internal predecessors, (24496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 24496 transitions. [2022-03-15 15:39:26,793 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 24496 transitions. Word has length 29 [2022-03-15 15:39:26,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:26,793 INFO L470 AbstractCegarLoop]: Abstraction has 5192 states and 24496 transitions. [2022-03-15 15:39:26,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:26,793 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 24496 transitions. [2022-03-15 15:39:26,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:26,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:26,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:26,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1466 [2022-03-15 15:39:26,803 INFO L402 AbstractCegarLoop]: === Iteration 1468 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:26,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:26,803 INFO L85 PathProgramCache]: Analyzing trace with hash 785567621, now seen corresponding path program 1463 times [2022-03-15 15:39:26,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:26,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551052295] [2022-03-15 15:39:26,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:26,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:26,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:26,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:26,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551052295] [2022-03-15 15:39:26,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551052295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:26,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:26,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:26,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428012251] [2022-03-15 15:39:26,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:26,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:26,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:26,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:26,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:26,981 INFO L87 Difference]: Start difference. First operand 5192 states and 24496 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:27,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:27,194 INFO L93 Difference]: Finished difference Result 12044 states and 53681 transitions. [2022-03-15 15:39:27,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:27,195 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:27,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:27,235 INFO L225 Difference]: With dead ends: 12044 [2022-03-15 15:39:27,235 INFO L226 Difference]: Without dead ends: 11567 [2022-03-15 15:39:27,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:27,235 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 170 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:27,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 200 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:27,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11567 states. [2022-03-15 15:39:27,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11567 to 5270. [2022-03-15 15:39:27,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5270 states, 5269 states have (on average 4.7046877965458345) internal successors, (24789), 5269 states have internal predecessors, (24789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:27,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5270 states to 5270 states and 24789 transitions. [2022-03-15 15:39:27,454 INFO L78 Accepts]: Start accepts. Automaton has 5270 states and 24789 transitions. Word has length 29 [2022-03-15 15:39:27,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:27,454 INFO L470 AbstractCegarLoop]: Abstraction has 5270 states and 24789 transitions. [2022-03-15 15:39:27,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:27,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5270 states and 24789 transitions. [2022-03-15 15:39:27,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:27,465 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:27,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:27,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1467 [2022-03-15 15:39:27,465 INFO L402 AbstractCegarLoop]: === Iteration 1469 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:27,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:27,466 INFO L85 PathProgramCache]: Analyzing trace with hash 578759655, now seen corresponding path program 1464 times [2022-03-15 15:39:27,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:27,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057407534] [2022-03-15 15:39:27,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:27,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:27,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:27,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:27,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057407534] [2022-03-15 15:39:27,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057407534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:27,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:27,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:27,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33397658] [2022-03-15 15:39:27,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:27,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:27,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:27,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:27,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:27,635 INFO L87 Difference]: Start difference. First operand 5270 states and 24789 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:27,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:27,827 INFO L93 Difference]: Finished difference Result 12042 states and 53598 transitions. [2022-03-15 15:39:27,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:27,827 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:27,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:27,861 INFO L225 Difference]: With dead ends: 12042 [2022-03-15 15:39:27,861 INFO L226 Difference]: Without dead ends: 11366 [2022-03-15 15:39:27,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:27,861 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 160 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:27,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 209 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:27,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2022-03-15 15:39:27,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 5069. [2022-03-15 15:39:27,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 5068 states have (on average 4.753551696921862) internal successors, (24091), 5068 states have internal predecessors, (24091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:28,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 24091 transitions. [2022-03-15 15:39:28,000 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 24091 transitions. Word has length 29 [2022-03-15 15:39:28,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:28,000 INFO L470 AbstractCegarLoop]: Abstraction has 5069 states and 24091 transitions. [2022-03-15 15:39:28,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:28,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 24091 transitions. [2022-03-15 15:39:28,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:28,009 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:28,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:28,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1468 [2022-03-15 15:39:28,010 INFO L402 AbstractCegarLoop]: === Iteration 1470 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:28,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:28,010 INFO L85 PathProgramCache]: Analyzing trace with hash -277422589, now seen corresponding path program 1465 times [2022-03-15 15:39:28,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:28,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590400824] [2022-03-15 15:39:28,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:28,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:28,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:28,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:28,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590400824] [2022-03-15 15:39:28,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590400824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:28,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:28,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:28,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384538750] [2022-03-15 15:39:28,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:28,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:28,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:28,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:28,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:28,124 INFO L87 Difference]: Start difference. First operand 5069 states and 24091 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:28,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:28,328 INFO L93 Difference]: Finished difference Result 11805 states and 52778 transitions. [2022-03-15 15:39:28,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:28,329 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:28,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:28,362 INFO L225 Difference]: With dead ends: 11805 [2022-03-15 15:39:28,363 INFO L226 Difference]: Without dead ends: 11390 [2022-03-15 15:39:28,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:28,363 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 170 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:28,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 202 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:28,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11390 states. [2022-03-15 15:39:28,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11390 to 5233. [2022-03-15 15:39:28,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 4.7452217125382266) internal successors, (24827), 5232 states have internal predecessors, (24827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:28,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 24827 transitions. [2022-03-15 15:39:28,504 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 24827 transitions. Word has length 29 [2022-03-15 15:39:28,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:28,504 INFO L470 AbstractCegarLoop]: Abstraction has 5233 states and 24827 transitions. [2022-03-15 15:39:28,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:28,504 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 24827 transitions. [2022-03-15 15:39:28,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:28,514 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:28,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:28,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1469 [2022-03-15 15:39:28,514 INFO L402 AbstractCegarLoop]: === Iteration 1471 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:28,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:28,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1262626619, now seen corresponding path program 1466 times [2022-03-15 15:39:28,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:28,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753845862] [2022-03-15 15:39:28,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:28,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:28,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:28,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753845862] [2022-03-15 15:39:28,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753845862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:28,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:28,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:28,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469786326] [2022-03-15 15:39:28,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:28,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:28,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:28,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:28,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:28,675 INFO L87 Difference]: Start difference. First operand 5233 states and 24827 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:28,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:28,874 INFO L93 Difference]: Finished difference Result 11932 states and 53257 transitions. [2022-03-15 15:39:28,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:28,874 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:28,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:28,907 INFO L225 Difference]: With dead ends: 11932 [2022-03-15 15:39:28,907 INFO L226 Difference]: Without dead ends: 11310 [2022-03-15 15:39:28,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:28,907 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 171 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:28,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 210 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:28,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11310 states. [2022-03-15 15:39:29,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11310 to 5153. [2022-03-15 15:39:29,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.74902950310559) internal successors, (24467), 5152 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:29,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24467 transitions. [2022-03-15 15:39:29,045 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24467 transitions. Word has length 29 [2022-03-15 15:39:29,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:29,045 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24467 transitions. [2022-03-15 15:39:29,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:29,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24467 transitions. [2022-03-15 15:39:29,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:29,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:29,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:29,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1470 [2022-03-15 15:39:29,055 INFO L402 AbstractCegarLoop]: === Iteration 1472 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:29,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:29,055 INFO L85 PathProgramCache]: Analyzing trace with hash -497224445, now seen corresponding path program 1467 times [2022-03-15 15:39:29,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:29,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809225102] [2022-03-15 15:39:29,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:29,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:29,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:29,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809225102] [2022-03-15 15:39:29,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809225102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:29,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:29,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:29,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550963353] [2022-03-15 15:39:29,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:29,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:29,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:29,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:29,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:29,169 INFO L87 Difference]: Start difference. First operand 5153 states and 24467 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:29,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:29,356 INFO L93 Difference]: Finished difference Result 11708 states and 52336 transitions. [2022-03-15 15:39:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:29,356 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:29,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:29,389 INFO L225 Difference]: With dead ends: 11708 [2022-03-15 15:39:29,389 INFO L226 Difference]: Without dead ends: 11293 [2022-03-15 15:39:29,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:29,389 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 180 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:29,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 225 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:29,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11293 states. [2022-03-15 15:39:29,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11293 to 5201. [2022-03-15 15:39:29,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5201 states, 5200 states have (on average 4.7390384615384615) internal successors, (24643), 5200 states have internal predecessors, (24643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:29,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 24643 transitions. [2022-03-15 15:39:29,527 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 24643 transitions. Word has length 29 [2022-03-15 15:39:29,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:29,528 INFO L470 AbstractCegarLoop]: Abstraction has 5201 states and 24643 transitions. [2022-03-15 15:39:29,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:29,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 24643 transitions. [2022-03-15 15:39:29,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:29,537 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:29,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:29,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1471 [2022-03-15 15:39:29,537 INFO L402 AbstractCegarLoop]: === Iteration 1473 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:29,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:29,538 INFO L85 PathProgramCache]: Analyzing trace with hash -267937435, now seen corresponding path program 1468 times [2022-03-15 15:39:29,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:29,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591276095] [2022-03-15 15:39:29,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:29,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:29,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:29,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:29,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591276095] [2022-03-15 15:39:29,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591276095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:29,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:29,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:29,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539617957] [2022-03-15 15:39:29,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:29,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:29,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:29,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:29,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:29,666 INFO L87 Difference]: Start difference. First operand 5201 states and 24643 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:29,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:29,876 INFO L93 Difference]: Finished difference Result 11770 states and 52557 transitions. [2022-03-15 15:39:29,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:29,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:29,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:29,909 INFO L225 Difference]: With dead ends: 11770 [2022-03-15 15:39:29,909 INFO L226 Difference]: Without dead ends: 11245 [2022-03-15 15:39:29,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:29,909 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 157 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:29,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 225 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:29,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11245 states. [2022-03-15 15:39:30,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11245 to 5153. [2022-03-15 15:39:30,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.744371118012422) internal successors, (24443), 5152 states have internal predecessors, (24443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:30,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24443 transitions. [2022-03-15 15:39:30,054 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24443 transitions. Word has length 29 [2022-03-15 15:39:30,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:30,054 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24443 transitions. [2022-03-15 15:39:30,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:30,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24443 transitions. [2022-03-15 15:39:30,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:30,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:30,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:30,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1472 [2022-03-15 15:39:30,064 INFO L402 AbstractCegarLoop]: === Iteration 1474 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:30,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:30,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1466563495, now seen corresponding path program 1469 times [2022-03-15 15:39:30,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:30,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100336718] [2022-03-15 15:39:30,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:30,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:30,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:30,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:30,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100336718] [2022-03-15 15:39:30,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100336718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:30,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:30,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:30,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816113381] [2022-03-15 15:39:30,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:30,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:30,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:30,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:30,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:30,201 INFO L87 Difference]: Start difference. First operand 5153 states and 24443 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:30,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:30,406 INFO L93 Difference]: Finished difference Result 12057 states and 53772 transitions. [2022-03-15 15:39:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:30,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:30,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:30,439 INFO L225 Difference]: With dead ends: 12057 [2022-03-15 15:39:30,439 INFO L226 Difference]: Without dead ends: 11515 [2022-03-15 15:39:30,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:30,439 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 157 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:30,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 240 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:30,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11515 states. [2022-03-15 15:39:30,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11515 to 5296. [2022-03-15 15:39:30,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5295 states have (on average 4.714258734655335) internal successors, (24962), 5295 states have internal predecessors, (24962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:30,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 24962 transitions. [2022-03-15 15:39:30,583 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 24962 transitions. Word has length 29 [2022-03-15 15:39:30,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:30,583 INFO L470 AbstractCegarLoop]: Abstraction has 5296 states and 24962 transitions. [2022-03-15 15:39:30,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:30,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 24962 transitions. [2022-03-15 15:39:30,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:30,593 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:30,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:30,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1473 [2022-03-15 15:39:30,593 INFO L402 AbstractCegarLoop]: === Iteration 1475 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:30,593 INFO L85 PathProgramCache]: Analyzing trace with hash -576773499, now seen corresponding path program 1470 times [2022-03-15 15:39:30,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:30,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496171152] [2022-03-15 15:39:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:30,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:30,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:30,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496171152] [2022-03-15 15:39:30,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496171152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:30,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:30,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:30,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647829010] [2022-03-15 15:39:30,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:30,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:30,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:30,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:30,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:30,753 INFO L87 Difference]: Start difference. First operand 5296 states and 24962 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:30,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:30,966 INFO L93 Difference]: Finished difference Result 11992 states and 53403 transitions. [2022-03-15 15:39:30,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:30,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:30,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:31,004 INFO L225 Difference]: With dead ends: 11992 [2022-03-15 15:39:31,004 INFO L226 Difference]: Without dead ends: 11316 [2022-03-15 15:39:31,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:31,004 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 175 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:31,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 191 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:31,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11316 states. [2022-03-15 15:39:31,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11316 to 5097. [2022-03-15 15:39:31,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 4.750981161695448) internal successors, (24211), 5096 states have internal predecessors, (24211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:31,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 24211 transitions. [2022-03-15 15:39:31,167 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 24211 transitions. Word has length 29 [2022-03-15 15:39:31,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:31,168 INFO L470 AbstractCegarLoop]: Abstraction has 5097 states and 24211 transitions. [2022-03-15 15:39:31,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:31,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 24211 transitions. [2022-03-15 15:39:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:31,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:31,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:31,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1474 [2022-03-15 15:39:31,178 INFO L402 AbstractCegarLoop]: === Iteration 1476 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:31,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:31,178 INFO L85 PathProgramCache]: Analyzing trace with hash -2085523901, now seen corresponding path program 1471 times [2022-03-15 15:39:31,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:31,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486791850] [2022-03-15 15:39:31,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:31,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:31,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:31,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:31,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486791850] [2022-03-15 15:39:31,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486791850] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:31,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:31,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:31,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61042163] [2022-03-15 15:39:31,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:31,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:31,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:31,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:31,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:31,287 INFO L87 Difference]: Start difference. First operand 5097 states and 24211 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:31,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:31,465 INFO L93 Difference]: Finished difference Result 11748 states and 52547 transitions. [2022-03-15 15:39:31,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:31,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:31,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:31,506 INFO L225 Difference]: With dead ends: 11748 [2022-03-15 15:39:31,506 INFO L226 Difference]: Without dead ends: 11333 [2022-03-15 15:39:31,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:31,507 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 163 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:31,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 215 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:31,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11333 states. [2022-03-15 15:39:31,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11333 to 5217. [2022-03-15 15:39:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 4.742139570552148) internal successors, (24735), 5216 states have internal predecessors, (24735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:31,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 24735 transitions. [2022-03-15 15:39:31,686 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 24735 transitions. Word has length 29 [2022-03-15 15:39:31,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:31,686 INFO L470 AbstractCegarLoop]: Abstraction has 5217 states and 24735 transitions. [2022-03-15 15:39:31,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:31,687 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 24735 transitions. [2022-03-15 15:39:31,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:31,698 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:31,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:31,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1475 [2022-03-15 15:39:31,698 INFO L402 AbstractCegarLoop]: === Iteration 1477 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:31,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:31,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1224239365, now seen corresponding path program 1472 times [2022-03-15 15:39:31,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:31,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376192010] [2022-03-15 15:39:31,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:31,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:31,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:31,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376192010] [2022-03-15 15:39:31,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376192010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:31,870 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:31,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:31,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333974811] [2022-03-15 15:39:31,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:31,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:31,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:31,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:31,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:31,871 INFO L87 Difference]: Start difference. First operand 5217 states and 24735 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:32,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:32,088 INFO L93 Difference]: Finished difference Result 11875 states and 53026 transitions. [2022-03-15 15:39:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:32,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:32,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:32,121 INFO L225 Difference]: With dead ends: 11875 [2022-03-15 15:39:32,121 INFO L226 Difference]: Without dead ends: 11253 [2022-03-15 15:39:32,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:32,122 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 178 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:32,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 209 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:32,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11253 states. [2022-03-15 15:39:32,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11253 to 5137. [2022-03-15 15:39:32,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.745911214953271) internal successors, (24375), 5136 states have internal predecessors, (24375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:32,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24375 transitions. [2022-03-15 15:39:32,261 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24375 transitions. Word has length 29 [2022-03-15 15:39:32,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:32,261 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24375 transitions. [2022-03-15 15:39:32,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:32,261 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24375 transitions. [2022-03-15 15:39:32,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:32,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:32,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:32,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1476 [2022-03-15 15:39:32,271 INFO L402 AbstractCegarLoop]: === Iteration 1478 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:32,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:32,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1650351519, now seen corresponding path program 1473 times [2022-03-15 15:39:32,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:32,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973412232] [2022-03-15 15:39:32,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:32,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:32,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:32,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:32,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973412232] [2022-03-15 15:39:32,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973412232] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:32,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:32,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:32,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529028546] [2022-03-15 15:39:32,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:32,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:32,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:32,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:32,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:32,423 INFO L87 Difference]: Start difference. First operand 5137 states and 24375 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:32,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:32,608 INFO L93 Difference]: Finished difference Result 11645 states and 52088 transitions. [2022-03-15 15:39:32,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:32,609 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:32,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:32,646 INFO L225 Difference]: With dead ends: 11645 [2022-03-15 15:39:32,646 INFO L226 Difference]: Without dead ends: 11230 [2022-03-15 15:39:32,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:32,646 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 173 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:32,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 215 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:32,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-03-15 15:39:32,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 5185. [2022-03-15 15:39:32,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5184 states have (on average 4.7359182098765435) internal successors, (24551), 5184 states have internal predecessors, (24551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:32,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 24551 transitions. [2022-03-15 15:39:32,812 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 24551 transitions. Word has length 29 [2022-03-15 15:39:32,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:32,812 INFO L470 AbstractCegarLoop]: Abstraction has 5185 states and 24551 transitions. [2022-03-15 15:39:32,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:32,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 24551 transitions. [2022-03-15 15:39:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:32,823 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:32,823 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:32,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1477 [2022-03-15 15:39:32,823 INFO L402 AbstractCegarLoop]: === Iteration 1479 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:32,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:32,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1026886979, now seen corresponding path program 1474 times [2022-03-15 15:39:32,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:32,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899238966] [2022-03-15 15:39:32,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:32,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:32,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:32,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:32,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899238966] [2022-03-15 15:39:32,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899238966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:32,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:32,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:32,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742695951] [2022-03-15 15:39:32,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:32,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:32,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:32,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:32,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:32,945 INFO L87 Difference]: Start difference. First operand 5185 states and 24551 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:33,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:33,118 INFO L93 Difference]: Finished difference Result 11701 states and 52292 transitions. [2022-03-15 15:39:33,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:33,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:33,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:33,155 INFO L225 Difference]: With dead ends: 11701 [2022-03-15 15:39:33,155 INFO L226 Difference]: Without dead ends: 11182 [2022-03-15 15:39:33,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:33,155 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 157 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:33,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 200 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:33,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11182 states. [2022-03-15 15:39:33,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11182 to 5137. [2022-03-15 15:39:33,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 4.741238317757009) internal successors, (24351), 5136 states have internal predecessors, (24351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 24351 transitions. [2022-03-15 15:39:33,319 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 24351 transitions. Word has length 29 [2022-03-15 15:39:33,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:33,319 INFO L470 AbstractCegarLoop]: Abstraction has 5137 states and 24351 transitions. [2022-03-15 15:39:33,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:33,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 24351 transitions. [2022-03-15 15:39:33,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:33,330 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:33,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:33,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1478 [2022-03-15 15:39:33,330 INFO L402 AbstractCegarLoop]: === Iteration 1480 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:33,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:33,330 INFO L85 PathProgramCache]: Analyzing trace with hash 744791941, now seen corresponding path program 1475 times [2022-03-15 15:39:33,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:33,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307129214] [2022-03-15 15:39:33,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:33,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:33,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:33,451 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:33,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307129214] [2022-03-15 15:39:33,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307129214] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:33,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:33,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:33,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457112906] [2022-03-15 15:39:33,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:33,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:33,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:33,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:33,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:33,452 INFO L87 Difference]: Start difference. First operand 5137 states and 24351 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:33,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:33,616 INFO L93 Difference]: Finished difference Result 11959 states and 53402 transitions. [2022-03-15 15:39:33,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:33,616 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:33,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:33,654 INFO L225 Difference]: With dead ends: 11959 [2022-03-15 15:39:33,654 INFO L226 Difference]: Without dead ends: 11417 [2022-03-15 15:39:33,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:33,654 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 178 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:33,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 198 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:33,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11417 states. [2022-03-15 15:39:33,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11417 to 5245. [2022-03-15 15:39:33,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5245 states, 5244 states have (on average 4.719870327993898) internal successors, (24751), 5244 states have internal predecessors, (24751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:33,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 24751 transitions. [2022-03-15 15:39:33,824 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 24751 transitions. Word has length 29 [2022-03-15 15:39:33,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:33,824 INFO L470 AbstractCegarLoop]: Abstraction has 5245 states and 24751 transitions. [2022-03-15 15:39:33,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:33,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 24751 transitions. [2022-03-15 15:39:33,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:33,834 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:33,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:33,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1479 [2022-03-15 15:39:33,834 INFO L402 AbstractCegarLoop]: === Iteration 1481 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:33,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:33,834 INFO L85 PathProgramCache]: Analyzing trace with hash 655032291, now seen corresponding path program 1476 times [2022-03-15 15:39:33,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:33,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824298519] [2022-03-15 15:39:33,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:33,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:34,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:34,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824298519] [2022-03-15 15:39:34,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824298519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:34,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:34,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:34,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298424006] [2022-03-15 15:39:34,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:34,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:34,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:34,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:34,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:34,026 INFO L87 Difference]: Start difference. First operand 5245 states and 24751 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:34,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:34,247 INFO L93 Difference]: Finished difference Result 11888 states and 53019 transitions. [2022-03-15 15:39:34,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:34,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:34,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:34,285 INFO L225 Difference]: With dead ends: 11888 [2022-03-15 15:39:34,285 INFO L226 Difference]: Without dead ends: 11269 [2022-03-15 15:39:34,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:34,285 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 156 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:34,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 239 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:34,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11269 states. [2022-03-15 15:39:34,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11269 to 5097. [2022-03-15 15:39:34,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 4.747056514913658) internal successors, (24191), 5096 states have internal predecessors, (24191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:34,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 24191 transitions. [2022-03-15 15:39:34,450 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 24191 transitions. Word has length 29 [2022-03-15 15:39:34,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:34,450 INFO L470 AbstractCegarLoop]: Abstraction has 5097 states and 24191 transitions. [2022-03-15 15:39:34,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:34,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 24191 transitions. [2022-03-15 15:39:34,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:34,461 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:34,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:34,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1480 [2022-03-15 15:39:34,461 INFO L402 AbstractCegarLoop]: === Iteration 1482 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:34,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:34,461 INFO L85 PathProgramCache]: Analyzing trace with hash -834483871, now seen corresponding path program 1477 times [2022-03-15 15:39:34,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:34,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237297397] [2022-03-15 15:39:34,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:34,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:34,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:34,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:34,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237297397] [2022-03-15 15:39:34,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237297397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:34,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:34,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:34,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382589001] [2022-03-15 15:39:34,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:34,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:34,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:34,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:34,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:34,561 INFO L87 Difference]: Start difference. First operand 5097 states and 24191 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:34,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:34,728 INFO L93 Difference]: Finished difference Result 11506 states and 51499 transitions. [2022-03-15 15:39:34,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:34,729 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:34,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:34,765 INFO L225 Difference]: With dead ends: 11506 [2022-03-15 15:39:34,765 INFO L226 Difference]: Without dead ends: 11091 [2022-03-15 15:39:34,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:34,765 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 183 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:34,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 192 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:34,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11091 states. [2022-03-15 15:39:34,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11091 to 5169. [2022-03-15 15:39:34,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.738970588235294) internal successors, (24491), 5168 states have internal predecessors, (24491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:34,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24491 transitions. [2022-03-15 15:39:34,944 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24491 transitions. Word has length 29 [2022-03-15 15:39:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:34,944 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24491 transitions. [2022-03-15 15:39:34,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24491 transitions. [2022-03-15 15:39:34,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:34,955 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:34,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:34,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1481 [2022-03-15 15:39:34,955 INFO L402 AbstractCegarLoop]: === Iteration 1483 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:34,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:34,956 INFO L85 PathProgramCache]: Analyzing trace with hash -605196861, now seen corresponding path program 1478 times [2022-03-15 15:39:34,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:34,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216185400] [2022-03-15 15:39:34,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:34,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:35,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:35,063 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:35,063 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216185400] [2022-03-15 15:39:35,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216185400] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:35,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:35,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:35,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625555028] [2022-03-15 15:39:35,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:35,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:35,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:35,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:35,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:35,064 INFO L87 Difference]: Start difference. First operand 5169 states and 24491 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:35,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:35,297 INFO L93 Difference]: Finished difference Result 11568 states and 51720 transitions. [2022-03-15 15:39:35,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:35,297 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:35,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:35,330 INFO L225 Difference]: With dead ends: 11568 [2022-03-15 15:39:35,330 INFO L226 Difference]: Without dead ends: 11043 [2022-03-15 15:39:35,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:35,330 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 151 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:35,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 249 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:35,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11043 states. [2022-03-15 15:39:35,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11043 to 5121. [2022-03-15 15:39:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7443359375) internal successors, (24291), 5120 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:35,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24291 transitions. [2022-03-15 15:39:35,467 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24291 transitions. Word has length 29 [2022-03-15 15:39:35,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:35,467 INFO L470 AbstractCegarLoop]: Abstraction has 5121 states and 24291 transitions. [2022-03-15 15:39:35,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:35,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24291 transitions. [2022-03-15 15:39:35,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:35,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:35,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:35,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1482 [2022-03-15 15:39:35,477 INFO L402 AbstractCegarLoop]: === Iteration 1484 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:35,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:35,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1593466051, now seen corresponding path program 1479 times [2022-03-15 15:39:35,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:35,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955271024] [2022-03-15 15:39:35,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:35,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:35,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:35,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:35,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955271024] [2022-03-15 15:39:35,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955271024] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:35,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:35,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:35,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096730133] [2022-03-15 15:39:35,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:35,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:35,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:35,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:35,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:35,591 INFO L87 Difference]: Start difference. First operand 5121 states and 24291 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:35,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:35,767 INFO L93 Difference]: Finished difference Result 11500 states and 51458 transitions. [2022-03-15 15:39:35,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:35,767 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:35,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:35,801 INFO L225 Difference]: With dead ends: 11500 [2022-03-15 15:39:35,801 INFO L226 Difference]: Without dead ends: 11085 [2022-03-15 15:39:35,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:35,801 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 171 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:35,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 216 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:35,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2022-03-15 15:39:35,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 5169. [2022-03-15 15:39:35,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5169 states, 5168 states have (on average 4.734326625386997) internal successors, (24467), 5168 states have internal predecessors, (24467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:35,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 5169 states and 24467 transitions. [2022-03-15 15:39:35,945 INFO L78 Accepts]: Start accepts. Automaton has 5169 states and 24467 transitions. Word has length 29 [2022-03-15 15:39:35,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:35,945 INFO L470 AbstractCegarLoop]: Abstraction has 5169 states and 24467 transitions. [2022-03-15 15:39:35,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:35,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5169 states and 24467 transitions. [2022-03-15 15:39:35,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:35,955 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:35,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:35,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1483 [2022-03-15 15:39:35,955 INFO L402 AbstractCegarLoop]: === Iteration 1485 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:35,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:35,956 INFO L85 PathProgramCache]: Analyzing trace with hash 250700867, now seen corresponding path program 1480 times [2022-03-15 15:39:35,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:35,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6939022] [2022-03-15 15:39:35,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:35,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:36,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:36,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:36,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6939022] [2022-03-15 15:39:36,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6939022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:36,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:36,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:36,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792285535] [2022-03-15 15:39:36,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:36,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:36,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:36,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:36,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:36,066 INFO L87 Difference]: Start difference. First operand 5169 states and 24467 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:36,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:36,243 INFO L93 Difference]: Finished difference Result 11556 states and 51662 transitions. [2022-03-15 15:39:36,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:36,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:36,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:36,276 INFO L225 Difference]: With dead ends: 11556 [2022-03-15 15:39:36,276 INFO L226 Difference]: Without dead ends: 11037 [2022-03-15 15:39:36,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:36,276 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 162 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:36,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 238 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:36,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11037 states. [2022-03-15 15:39:36,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11037 to 5121. [2022-03-15 15:39:36,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5120 states have (on average 4.7396484375) internal successors, (24267), 5120 states have internal predecessors, (24267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:36,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 24267 transitions. [2022-03-15 15:39:36,416 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 24267 transitions. Word has length 29 [2022-03-15 15:39:36,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:36,416 INFO L470 AbstractCegarLoop]: Abstraction has 5121 states and 24267 transitions. [2022-03-15 15:39:36,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:36,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 24267 transitions. [2022-03-15 15:39:36,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:36,425 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:36,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:36,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1484 [2022-03-15 15:39:36,426 INFO L402 AbstractCegarLoop]: === Iteration 1486 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:36,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:36,426 INFO L85 PathProgramCache]: Analyzing trace with hash -464410587, now seen corresponding path program 1481 times [2022-03-15 15:39:36,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:36,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392760566] [2022-03-15 15:39:36,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:36,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:36,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:36,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:36,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392760566] [2022-03-15 15:39:36,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392760566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:36,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:36,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:36,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975216909] [2022-03-15 15:39:36,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:36,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:36,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:36,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:36,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:36,528 INFO L87 Difference]: Start difference. First operand 5121 states and 24267 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:36,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:36,725 INFO L93 Difference]: Finished difference Result 11652 states and 52112 transitions. [2022-03-15 15:39:36,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:36,725 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:36,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:36,759 INFO L225 Difference]: With dead ends: 11652 [2022-03-15 15:39:36,759 INFO L226 Difference]: Without dead ends: 11175 [2022-03-15 15:39:36,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:36,760 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 166 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:36,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 215 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:36,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11175 states. [2022-03-15 15:39:36,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11175 to 5197. [2022-03-15 15:39:36,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 4.725750577367205) internal successors, (24555), 5196 states have internal predecessors, (24555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:36,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 24555 transitions. [2022-03-15 15:39:36,907 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 24555 transitions. Word has length 29 [2022-03-15 15:39:36,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:36,907 INFO L470 AbstractCegarLoop]: Abstraction has 5197 states and 24555 transitions. [2022-03-15 15:39:36,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:36,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 24555 transitions. [2022-03-15 15:39:36,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:36,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:36,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:36,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1485 [2022-03-15 15:39:36,917 INFO L402 AbstractCegarLoop]: === Iteration 1487 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:36,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:36,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1205362685, now seen corresponding path program 1482 times [2022-03-15 15:39:36,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:36,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204827060] [2022-03-15 15:39:36,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:36,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:37,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:37,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:37,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204827060] [2022-03-15 15:39:37,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204827060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:37,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:37,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:37,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937161981] [2022-03-15 15:39:37,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:37,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:37,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:37,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:37,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:37,025 INFO L87 Difference]: Start difference. First operand 5197 states and 24555 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:37,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:37,192 INFO L93 Difference]: Finished difference Result 11646 states and 52019 transitions. [2022-03-15 15:39:37,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:37,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:37,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:37,225 INFO L225 Difference]: With dead ends: 11646 [2022-03-15 15:39:37,225 INFO L226 Difference]: Without dead ends: 11075 [2022-03-15 15:39:37,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:37,226 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 160 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:37,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 215 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:37,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11075 states. [2022-03-15 15:39:37,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11075 to 5097. [2022-03-15 15:39:37,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 5096 states have (on average 4.744701726844584) internal successors, (24179), 5096 states have internal predecessors, (24179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:37,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 24179 transitions. [2022-03-15 15:39:37,368 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 24179 transitions. Word has length 29 [2022-03-15 15:39:37,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:37,368 INFO L470 AbstractCegarLoop]: Abstraction has 5097 states and 24179 transitions. [2022-03-15 15:39:37,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:37,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 24179 transitions. [2022-03-15 15:39:37,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:37,378 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:37,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:37,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1486 [2022-03-15 15:39:37,378 INFO L402 AbstractCegarLoop]: === Iteration 1488 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:37,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:37,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1647001113, now seen corresponding path program 1483 times [2022-03-15 15:39:37,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:37,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206382623] [2022-03-15 15:39:37,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:37,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:37,487 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:37,487 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206382623] [2022-03-15 15:39:37,487 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206382623] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:37,487 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:37,487 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:37,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524322627] [2022-03-15 15:39:37,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:37,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:37,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:37,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:37,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:37,487 INFO L87 Difference]: Start difference. First operand 5097 states and 24179 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:37,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:37,673 INFO L93 Difference]: Finished difference Result 12183 states and 54385 transitions. [2022-03-15 15:39:37,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:37,673 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:37,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:37,707 INFO L225 Difference]: With dead ends: 12183 [2022-03-15 15:39:37,707 INFO L226 Difference]: Without dead ends: 11641 [2022-03-15 15:39:37,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:37,707 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 190 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:37,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 189 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:37,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11641 states. [2022-03-15 15:39:37,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11641 to 5310. [2022-03-15 15:39:37,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5310 states, 5309 states have (on average 4.717084196647203) internal successors, (25043), 5309 states have internal predecessors, (25043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:37,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5310 states to 5310 states and 25043 transitions. [2022-03-15 15:39:37,856 INFO L78 Accepts]: Start accepts. Automaton has 5310 states and 25043 transitions. Word has length 29 [2022-03-15 15:39:37,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:37,856 INFO L470 AbstractCegarLoop]: Abstraction has 5310 states and 25043 transitions. [2022-03-15 15:39:37,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:37,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5310 states and 25043 transitions. [2022-03-15 15:39:37,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:37,867 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:37,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:37,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1487 [2022-03-15 15:39:37,867 INFO L402 AbstractCegarLoop]: === Iteration 1489 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:37,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:37,867 INFO L85 PathProgramCache]: Analyzing trace with hash 604629189, now seen corresponding path program 1484 times [2022-03-15 15:39:37,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:37,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645840149] [2022-03-15 15:39:37,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:37,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:38,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:38,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:38,043 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645840149] [2022-03-15 15:39:38,043 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645840149] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:38,043 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:38,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:38,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014808793] [2022-03-15 15:39:38,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:38,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:38,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:38,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:38,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:38,044 INFO L87 Difference]: Start difference. First operand 5310 states and 25043 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:38,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:38,237 INFO L93 Difference]: Finished difference Result 12118 states and 54016 transitions. [2022-03-15 15:39:38,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:38,237 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:38,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:38,272 INFO L225 Difference]: With dead ends: 12118 [2022-03-15 15:39:38,272 INFO L226 Difference]: Without dead ends: 11498 [2022-03-15 15:39:38,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:38,273 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 188 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:38,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 210 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:38,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11498 states. [2022-03-15 15:39:38,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11498 to 5167. [2022-03-15 15:39:38,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.733643050716221) internal successors, (24454), 5166 states have internal predecessors, (24454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:38,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24454 transitions. [2022-03-15 15:39:38,416 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24454 transitions. Word has length 29 [2022-03-15 15:39:38,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:38,416 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24454 transitions. [2022-03-15 15:39:38,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:38,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24454 transitions. [2022-03-15 15:39:38,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:38,426 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:38,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:38,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1488 [2022-03-15 15:39:38,426 INFO L402 AbstractCegarLoop]: === Iteration 1490 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:38,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:38,427 INFO L85 PathProgramCache]: Analyzing trace with hash -737396155, now seen corresponding path program 1485 times [2022-03-15 15:39:38,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:38,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388101962] [2022-03-15 15:39:38,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:38,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:38,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:38,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:38,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388101962] [2022-03-15 15:39:38,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388101962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:38,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:38,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:38,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541867831] [2022-03-15 15:39:38,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:38,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:38,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:38,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:38,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:38,578 INFO L87 Difference]: Start difference. First operand 5167 states and 24454 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:38,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:38,797 INFO L93 Difference]: Finished difference Result 12142 states and 54176 transitions. [2022-03-15 15:39:38,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:38,797 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:38,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:38,833 INFO L225 Difference]: With dead ends: 12142 [2022-03-15 15:39:38,833 INFO L226 Difference]: Without dead ends: 11600 [2022-03-15 15:39:38,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:38,833 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 165 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:38,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 218 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:38,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11600 states. [2022-03-15 15:39:38,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11600 to 5275. [2022-03-15 15:39:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 4.712552142586272) internal successors, (24854), 5274 states have internal predecessors, (24854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:38,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 24854 transitions. [2022-03-15 15:39:38,983 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 24854 transitions. Word has length 29 [2022-03-15 15:39:38,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:38,983 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 24854 transitions. [2022-03-15 15:39:38,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:38,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 24854 transitions. [2022-03-15 15:39:38,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:38,993 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:38,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:38,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1489 [2022-03-15 15:39:38,994 INFO L402 AbstractCegarLoop]: === Iteration 1491 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:38,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:38,994 INFO L85 PathProgramCache]: Analyzing trace with hash -818286011, now seen corresponding path program 1486 times [2022-03-15 15:39:38,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:38,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141824077] [2022-03-15 15:39:38,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:38,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:39,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:39,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:39,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141824077] [2022-03-15 15:39:39,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141824077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:39,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:39,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:39,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929317868] [2022-03-15 15:39:39,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:39,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:39,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:39,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:39,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:39,170 INFO L87 Difference]: Start difference. First operand 5275 states and 24854 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:39,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:39,370 INFO L93 Difference]: Finished difference Result 12071 states and 53793 transitions. [2022-03-15 15:39:39,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:39,370 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:39,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:39,405 INFO L225 Difference]: With dead ends: 12071 [2022-03-15 15:39:39,405 INFO L226 Difference]: Without dead ends: 11492 [2022-03-15 15:39:39,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:39,405 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 158 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:39,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 235 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:39,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11492 states. [2022-03-15 15:39:39,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11492 to 5167. [2022-03-15 15:39:39,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 4.723190089043747) internal successors, (24400), 5166 states have internal predecessors, (24400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:39,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 24400 transitions. [2022-03-15 15:39:39,550 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 24400 transitions. Word has length 29 [2022-03-15 15:39:39,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:39,550 INFO L470 AbstractCegarLoop]: Abstraction has 5167 states and 24400 transitions. [2022-03-15 15:39:39,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:39,550 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 24400 transitions. [2022-03-15 15:39:39,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:39,560 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:39,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:39,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1490 [2022-03-15 15:39:39,560 INFO L402 AbstractCegarLoop]: === Iteration 1492 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:39,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:39,560 INFO L85 PathProgramCache]: Analyzing trace with hash 244951459, now seen corresponding path program 1487 times [2022-03-15 15:39:39,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:39,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617524736] [2022-03-15 15:39:39,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:39,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:39,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:39,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:39,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617524736] [2022-03-15 15:39:39,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617524736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:39,676 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:39,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:39,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883992344] [2022-03-15 15:39:39,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:39,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:39,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:39,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:39,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:39,677 INFO L87 Difference]: Start difference. First operand 5167 states and 24400 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:39,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:39,918 INFO L93 Difference]: Finished difference Result 11980 states and 53462 transitions. [2022-03-15 15:39:39,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:39,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:39,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:39,954 INFO L225 Difference]: With dead ends: 11980 [2022-03-15 15:39:39,954 INFO L226 Difference]: Without dead ends: 11503 [2022-03-15 15:39:39,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:39,954 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 155 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:39,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 215 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:39:39,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11503 states. [2022-03-15 15:39:40,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11503 to 5243. [2022-03-15 15:39:40,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5243 states, 5242 states have (on average 4.709652804273178) internal successors, (24688), 5242 states have internal predecessors, (24688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:40,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5243 states to 5243 states and 24688 transitions. [2022-03-15 15:39:40,104 INFO L78 Accepts]: Start accepts. Automaton has 5243 states and 24688 transitions. Word has length 29 [2022-03-15 15:39:40,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:40,104 INFO L470 AbstractCegarLoop]: Abstraction has 5243 states and 24688 transitions. [2022-03-15 15:39:40,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:40,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5243 states and 24688 transitions. [2022-03-15 15:39:40,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:40,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:40,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:40,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1491 [2022-03-15 15:39:40,114 INFO L402 AbstractCegarLoop]: === Iteration 1493 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:40,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:40,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1249727099, now seen corresponding path program 1488 times [2022-03-15 15:39:40,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:40,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600347726] [2022-03-15 15:39:40,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:40,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:40,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:40,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:40,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600347726] [2022-03-15 15:39:40,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600347726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:40,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:40,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:40,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652280917] [2022-03-15 15:39:40,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:40,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:40,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:40,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:40,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:40,291 INFO L87 Difference]: Start difference. First operand 5243 states and 24688 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:40,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:40,499 INFO L93 Difference]: Finished difference Result 11974 states and 53369 transitions. [2022-03-15 15:39:40,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:40,500 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:40,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:40,582 INFO L225 Difference]: With dead ends: 11974 [2022-03-15 15:39:40,582 INFO L226 Difference]: Without dead ends: 11329 [2022-03-15 15:39:40,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:40,583 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 169 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:40,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 191 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:40,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11329 states. [2022-03-15 15:39:40,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11329 to 5069. [2022-03-15 15:39:40,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 5068 states have (on average 4.750789265982636) internal successors, (24077), 5068 states have internal predecessors, (24077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:40,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 24077 transitions. [2022-03-15 15:39:40,729 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 24077 transitions. Word has length 29 [2022-03-15 15:39:40,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:40,730 INFO L470 AbstractCegarLoop]: Abstraction has 5069 states and 24077 transitions. [2022-03-15 15:39:40,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 24077 transitions. [2022-03-15 15:39:40,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:40,740 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:40,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:40,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1492 [2022-03-15 15:39:40,740 INFO L402 AbstractCegarLoop]: === Iteration 1494 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:40,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:40,741 INFO L85 PathProgramCache]: Analyzing trace with hash -902211227, now seen corresponding path program 1489 times [2022-03-15 15:39:40,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:40,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603171480] [2022-03-15 15:39:40,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:40,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:40,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:40,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:40,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603171480] [2022-03-15 15:39:40,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603171480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:40,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:40,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:40,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959686552] [2022-03-15 15:39:40,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:40,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:40,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:40,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:40,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:40,890 INFO L87 Difference]: Start difference. First operand 5069 states and 24077 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:41,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:41,084 INFO L93 Difference]: Finished difference Result 11679 states and 52296 transitions. [2022-03-15 15:39:41,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:41,084 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:41,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:41,119 INFO L225 Difference]: With dead ends: 11679 [2022-03-15 15:39:41,119 INFO L226 Difference]: Without dead ends: 11264 [2022-03-15 15:39:41,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:41,120 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 168 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:41,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 201 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:41,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11264 states. [2022-03-15 15:39:41,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11264 to 5209. [2022-03-15 15:39:41,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.745199692780338) internal successors, (24713), 5208 states have internal predecessors, (24713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:41,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24713 transitions. [2022-03-15 15:39:41,263 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24713 transitions. Word has length 29 [2022-03-15 15:39:41,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:41,263 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24713 transitions. [2022-03-15 15:39:41,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:41,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24713 transitions. [2022-03-15 15:39:41,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:41,273 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:41,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:41,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1493 [2022-03-15 15:39:41,274 INFO L402 AbstractCegarLoop]: === Iteration 1495 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:41,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:41,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1887415257, now seen corresponding path program 1490 times [2022-03-15 15:39:41,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:41,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756157933] [2022-03-15 15:39:41,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:41,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:41,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:41,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:41,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756157933] [2022-03-15 15:39:41,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756157933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:41,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:41,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:41,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876022723] [2022-03-15 15:39:41,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:41,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:41,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:41,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:41,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:41,413 INFO L87 Difference]: Start difference. First operand 5209 states and 24713 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:41,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:41,611 INFO L93 Difference]: Finished difference Result 11806 states and 52775 transitions. [2022-03-15 15:39:41,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:41,611 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:41,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:41,646 INFO L225 Difference]: With dead ends: 11806 [2022-03-15 15:39:41,646 INFO L226 Difference]: Without dead ends: 11184 [2022-03-15 15:39:41,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:41,647 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 169 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:41,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 223 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:41,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11184 states. [2022-03-15 15:39:41,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11184 to 5129. [2022-03-15 15:39:41,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.74902496099844) internal successors, (24353), 5128 states have internal predecessors, (24353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:41,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24353 transitions. [2022-03-15 15:39:41,797 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24353 transitions. Word has length 29 [2022-03-15 15:39:41,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:41,797 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24353 transitions. [2022-03-15 15:39:41,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:41,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24353 transitions. [2022-03-15 15:39:41,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:41,807 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:41,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:41,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1494 [2022-03-15 15:39:41,807 INFO L402 AbstractCegarLoop]: === Iteration 1496 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:41,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:41,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1505252611, now seen corresponding path program 1491 times [2022-03-15 15:39:41,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:41,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434046656] [2022-03-15 15:39:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:41,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:41,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:41,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434046656] [2022-03-15 15:39:41,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434046656] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:41,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:41,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:41,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348632119] [2022-03-15 15:39:41,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:41,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:41,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:41,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:41,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:41,946 INFO L87 Difference]: Start difference. First operand 5129 states and 24353 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:42,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:42,152 INFO L93 Difference]: Finished difference Result 11580 states and 51849 transitions. [2022-03-15 15:39:42,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:42,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:42,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:42,188 INFO L225 Difference]: With dead ends: 11580 [2022-03-15 15:39:42,188 INFO L226 Difference]: Without dead ends: 11165 [2022-03-15 15:39:42,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:42,188 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 175 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:42,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 193 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11165 states. [2022-03-15 15:39:42,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11165 to 5177. [2022-03-15 15:39:42,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.7389876352395675) internal successors, (24529), 5176 states have internal predecessors, (24529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:42,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24529 transitions. [2022-03-15 15:39:42,339 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24529 transitions. Word has length 29 [2022-03-15 15:39:42,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:42,340 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24529 transitions. [2022-03-15 15:39:42,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:42,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24529 transitions. [2022-03-15 15:39:42,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:42,350 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:42,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:42,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1495 [2022-03-15 15:39:42,350 INFO L402 AbstractCegarLoop]: === Iteration 1497 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:42,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:42,350 INFO L85 PathProgramCache]: Analyzing trace with hash 503195749, now seen corresponding path program 1492 times [2022-03-15 15:39:42,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:42,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059639651] [2022-03-15 15:39:42,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:42,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:42,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:42,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:42,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059639651] [2022-03-15 15:39:42,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059639651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:42,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:42,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:42,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286118583] [2022-03-15 15:39:42,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:42,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:42,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:42,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:42,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:42,493 INFO L87 Difference]: Start difference. First operand 5177 states and 24529 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:42,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:42,748 INFO L93 Difference]: Finished difference Result 11640 states and 52065 transitions. [2022-03-15 15:39:42,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:42,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:42,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:42,787 INFO L225 Difference]: With dead ends: 11640 [2022-03-15 15:39:42,787 INFO L226 Difference]: Without dead ends: 11117 [2022-03-15 15:39:42,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:42,787 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 155 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:42,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 233 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:39:42,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11117 states. [2022-03-15 15:39:42,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11117 to 5129. [2022-03-15 15:39:42,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.744344773790951) internal successors, (24329), 5128 states have internal predecessors, (24329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:42,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24329 transitions. [2022-03-15 15:39:42,949 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24329 transitions. Word has length 29 [2022-03-15 15:39:42,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:42,949 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24329 transitions. [2022-03-15 15:39:42,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:42,949 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24329 transitions. [2022-03-15 15:39:42,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:42,959 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:42,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:42,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1496 [2022-03-15 15:39:42,959 INFO L402 AbstractCegarLoop]: === Iteration 1498 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:42,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:42,959 INFO L85 PathProgramCache]: Analyzing trace with hash 893299367, now seen corresponding path program 1493 times [2022-03-15 15:39:42,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:42,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651351780] [2022-03-15 15:39:42,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:42,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:43,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:43,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:43,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651351780] [2022-03-15 15:39:43,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651351780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:43,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:43,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:43,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619398875] [2022-03-15 15:39:43,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:43,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:43,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:43,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:43,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:43,111 INFO L87 Difference]: Start difference. First operand 5129 states and 24329 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:43,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:43,328 INFO L93 Difference]: Finished difference Result 11896 states and 53170 transitions. [2022-03-15 15:39:43,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:43,329 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:43,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:43,362 INFO L225 Difference]: With dead ends: 11896 [2022-03-15 15:39:43,362 INFO L226 Difference]: Without dead ends: 11354 [2022-03-15 15:39:43,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:43,363 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 162 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:43,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 212 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:43,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11354 states. [2022-03-15 15:39:43,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11354 to 5239. [2022-03-15 15:39:43,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 4.722031309660176) internal successors, (24734), 5238 states have internal predecessors, (24734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:43,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 24734 transitions. [2022-03-15 15:39:43,504 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 24734 transitions. Word has length 29 [2022-03-15 15:39:43,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:43,504 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 24734 transitions. [2022-03-15 15:39:43,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:43,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 24734 transitions. [2022-03-15 15:39:43,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:43,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:43,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:43,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1497 [2022-03-15 15:39:43,515 INFO L402 AbstractCegarLoop]: === Iteration 1499 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:43,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:43,515 INFO L85 PathProgramCache]: Analyzing trace with hash 152347269, now seen corresponding path program 1494 times [2022-03-15 15:39:43,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:43,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015305544] [2022-03-15 15:39:43,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:43,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:43,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:43,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:43,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015305544] [2022-03-15 15:39:43,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015305544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:43,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:43,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:43,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10177634] [2022-03-15 15:39:43,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:43,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:43,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:43,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:43,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:43,678 INFO L87 Difference]: Start difference. First operand 5239 states and 24734 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:43,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:43,899 INFO L93 Difference]: Finished difference Result 11829 states and 52797 transitions. [2022-03-15 15:39:43,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:43,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:43,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:43,936 INFO L225 Difference]: With dead ends: 11829 [2022-03-15 15:39:43,937 INFO L226 Difference]: Without dead ends: 11204 [2022-03-15 15:39:43,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:43,937 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 164 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:43,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 235 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:43,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11204 states. [2022-03-15 15:39:44,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11204 to 5089. [2022-03-15 15:39:44,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.750196540880503) internal successors, (24169), 5088 states have internal predecessors, (24169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:44,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24169 transitions. [2022-03-15 15:39:44,103 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24169 transitions. Word has length 29 [2022-03-15 15:39:44,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:44,103 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24169 transitions. [2022-03-15 15:39:44,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:44,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24169 transitions. [2022-03-15 15:39:44,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:44,113 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:44,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:44,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1498 [2022-03-15 15:39:44,113 INFO L402 AbstractCegarLoop]: === Iteration 1500 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:44,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:44,114 INFO L85 PathProgramCache]: Analyzing trace with hash 555835843, now seen corresponding path program 1495 times [2022-03-15 15:39:44,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:44,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364131497] [2022-03-15 15:39:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:44,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:44,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:44,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:44,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364131497] [2022-03-15 15:39:44,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364131497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:44,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:44,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:44,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788002925] [2022-03-15 15:39:44,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:44,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:44,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:44,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:44,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:44,292 INFO L87 Difference]: Start difference. First operand 5089 states and 24169 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:44,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:44,520 INFO L93 Difference]: Finished difference Result 11673 states and 52257 transitions. [2022-03-15 15:39:44,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:44,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:44,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:44,558 INFO L225 Difference]: With dead ends: 11673 [2022-03-15 15:39:44,558 INFO L226 Difference]: Without dead ends: 11258 [2022-03-15 15:39:44,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:44,558 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 170 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:44,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 231 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:44,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-03-15 15:39:44,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 5209. [2022-03-15 15:39:44,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5209 states, 5208 states have (on average 4.7413594470046085) internal successors, (24693), 5208 states have internal predecessors, (24693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:44,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 24693 transitions. [2022-03-15 15:39:44,726 INFO L78 Accepts]: Start accepts. Automaton has 5209 states and 24693 transitions. Word has length 29 [2022-03-15 15:39:44,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:44,726 INFO L470 AbstractCegarLoop]: Abstraction has 5209 states and 24693 transitions. [2022-03-15 15:39:44,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:44,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5209 states and 24693 transitions. [2022-03-15 15:39:44,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:44,736 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:44,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:44,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1499 [2022-03-15 15:39:44,737 INFO L402 AbstractCegarLoop]: === Iteration 1501 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:44,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:44,737 INFO L85 PathProgramCache]: Analyzing trace with hash -429368187, now seen corresponding path program 1496 times [2022-03-15 15:39:44,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:44,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671535472] [2022-03-15 15:39:44,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:44,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:44,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:44,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:44,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671535472] [2022-03-15 15:39:44,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671535472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:44,847 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:44,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:44,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052552233] [2022-03-15 15:39:44,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:44,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:44,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:44,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:44,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:44,848 INFO L87 Difference]: Start difference. First operand 5209 states and 24693 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:45,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:45,019 INFO L93 Difference]: Finished difference Result 11800 states and 52736 transitions. [2022-03-15 15:39:45,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:45,020 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:45,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:45,056 INFO L225 Difference]: With dead ends: 11800 [2022-03-15 15:39:45,057 INFO L226 Difference]: Without dead ends: 11178 [2022-03-15 15:39:45,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:45,057 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 158 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:45,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 230 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:45,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11178 states. [2022-03-15 15:39:45,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11178 to 5129. [2022-03-15 15:39:45,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.7451248049922) internal successors, (24333), 5128 states have internal predecessors, (24333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:45,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24333 transitions. [2022-03-15 15:39:45,222 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24333 transitions. Word has length 29 [2022-03-15 15:39:45,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:45,222 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24333 transitions. [2022-03-15 15:39:45,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:45,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24333 transitions. [2022-03-15 15:39:45,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:45,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:45,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:45,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1500 [2022-03-15 15:39:45,233 INFO L402 AbstractCegarLoop]: === Iteration 1502 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:45,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:45,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1748599421, now seen corresponding path program 1497 times [2022-03-15 15:39:45,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:45,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117579183] [2022-03-15 15:39:45,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:45,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:45,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:45,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117579183] [2022-03-15 15:39:45,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117579183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:45,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:45,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:45,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107503233] [2022-03-15 15:39:45,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:45,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:45,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:45,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:45,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:45,353 INFO L87 Difference]: Start difference. First operand 5129 states and 24333 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:45,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:45,549 INFO L93 Difference]: Finished difference Result 11570 states and 51798 transitions. [2022-03-15 15:39:45,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:45,549 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:45,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:45,584 INFO L225 Difference]: With dead ends: 11570 [2022-03-15 15:39:45,585 INFO L226 Difference]: Without dead ends: 11155 [2022-03-15 15:39:45,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:45,585 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 166 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:45,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 214 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:45,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11155 states. [2022-03-15 15:39:45,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11155 to 5177. [2022-03-15 15:39:45,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 4.735123647604327) internal successors, (24509), 5176 states have internal predecessors, (24509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:45,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 24509 transitions. [2022-03-15 15:39:45,725 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 24509 transitions. Word has length 29 [2022-03-15 15:39:45,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:45,735 INFO L470 AbstractCegarLoop]: Abstraction has 5177 states and 24509 transitions. [2022-03-15 15:39:45,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:45,735 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 24509 transitions. [2022-03-15 15:39:45,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:45,749 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:45,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:45,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1501 [2022-03-15 15:39:45,749 INFO L402 AbstractCegarLoop]: === Iteration 1503 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:45,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:45,749 INFO L85 PathProgramCache]: Analyzing trace with hash 928639077, now seen corresponding path program 1498 times [2022-03-15 15:39:45,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:45,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680223614] [2022-03-15 15:39:45,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:45,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:45,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:45,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680223614] [2022-03-15 15:39:45,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680223614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:45,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:45,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:45,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615825525] [2022-03-15 15:39:45,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:45,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:45,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:45,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:45,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:45,863 INFO L87 Difference]: Start difference. First operand 5177 states and 24509 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:46,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:46,045 INFO L93 Difference]: Finished difference Result 11626 states and 52002 transitions. [2022-03-15 15:39:46,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:46,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:46,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:46,079 INFO L225 Difference]: With dead ends: 11626 [2022-03-15 15:39:46,080 INFO L226 Difference]: Without dead ends: 11107 [2022-03-15 15:39:46,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:46,080 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 165 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:46,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 200 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:46,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11107 states. [2022-03-15 15:39:46,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11107 to 5129. [2022-03-15 15:39:46,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5129 states, 5128 states have (on average 4.7404446177847115) internal successors, (24309), 5128 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:46,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5129 states to 5129 states and 24309 transitions. [2022-03-15 15:39:46,217 INFO L78 Accepts]: Start accepts. Automaton has 5129 states and 24309 transitions. Word has length 29 [2022-03-15 15:39:46,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:46,217 INFO L470 AbstractCegarLoop]: Abstraction has 5129 states and 24309 transitions. [2022-03-15 15:39:46,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:46,217 INFO L276 IsEmpty]: Start isEmpty. Operand 5129 states and 24309 transitions. [2022-03-15 15:39:46,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:46,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:46,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:46,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1502 [2022-03-15 15:39:46,226 INFO L402 AbstractCegarLoop]: === Iteration 1504 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:46,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:46,227 INFO L85 PathProgramCache]: Analyzing trace with hash 646544039, now seen corresponding path program 1499 times [2022-03-15 15:39:46,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:46,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587251450] [2022-03-15 15:39:46,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:46,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:46,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:46,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:46,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:46,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587251450] [2022-03-15 15:39:46,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587251450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:46,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:46,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:46,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059782375] [2022-03-15 15:39:46,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:46,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:46,403 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:46,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:46,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:46,403 INFO L87 Difference]: Start difference. First operand 5129 states and 24309 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:46,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:46,587 INFO L93 Difference]: Finished difference Result 11884 states and 53112 transitions. [2022-03-15 15:39:46,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:46,587 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:46,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:46,623 INFO L225 Difference]: With dead ends: 11884 [2022-03-15 15:39:46,623 INFO L226 Difference]: Without dead ends: 11342 [2022-03-15 15:39:46,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:46,623 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 171 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:46,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 191 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:46,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11342 states. [2022-03-15 15:39:46,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11342 to 5237. [2022-03-15 15:39:46,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 5236 states have (on average 4.719060351413293) internal successors, (24709), 5236 states have internal predecessors, (24709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:46,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 24709 transitions. [2022-03-15 15:39:46,766 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 24709 transitions. Word has length 29 [2022-03-15 15:39:46,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:46,766 INFO L470 AbstractCegarLoop]: Abstraction has 5237 states and 24709 transitions. [2022-03-15 15:39:46,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:46,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 24709 transitions. [2022-03-15 15:39:46,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:46,776 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:46,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:46,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1503 [2022-03-15 15:39:46,776 INFO L402 AbstractCegarLoop]: === Iteration 1505 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:46,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:46,776 INFO L85 PathProgramCache]: Analyzing trace with hash 556784389, now seen corresponding path program 1500 times [2022-03-15 15:39:46,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:46,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72145336] [2022-03-15 15:39:46,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:46,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:46,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:46,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72145336] [2022-03-15 15:39:46,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72145336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:46,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:46,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:46,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034766752] [2022-03-15 15:39:46,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:46,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:46,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:46,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:46,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:46,901 INFO L87 Difference]: Start difference. First operand 5237 states and 24709 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:47,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:47,077 INFO L93 Difference]: Finished difference Result 11813 states and 52729 transitions. [2022-03-15 15:39:47,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:47,077 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:47,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:47,109 INFO L225 Difference]: With dead ends: 11813 [2022-03-15 15:39:47,110 INFO L226 Difference]: Without dead ends: 11194 [2022-03-15 15:39:47,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:47,110 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 159 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:47,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 199 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:47,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11194 states. [2022-03-15 15:39:47,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11194 to 5089. [2022-03-15 15:39:47,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.74626572327044) internal successors, (24149), 5088 states have internal predecessors, (24149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:47,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24149 transitions. [2022-03-15 15:39:47,305 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24149 transitions. Word has length 29 [2022-03-15 15:39:47,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:47,305 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24149 transitions. [2022-03-15 15:39:47,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:47,305 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24149 transitions. [2022-03-15 15:39:47,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:47,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:47,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:47,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1504 [2022-03-15 15:39:47,315 INFO L402 AbstractCegarLoop]: === Iteration 1506 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:47,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:47,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1200883295, now seen corresponding path program 1501 times [2022-03-15 15:39:47,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:47,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062324804] [2022-03-15 15:39:47,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:47,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:47,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:47,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062324804] [2022-03-15 15:39:47,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062324804] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:47,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:47,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:47,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828228293] [2022-03-15 15:39:47,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:47,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:47,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:47,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:47,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:47,422 INFO L87 Difference]: Start difference. First operand 5089 states and 24149 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:47,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:47,588 INFO L93 Difference]: Finished difference Result 11427 states and 51199 transitions. [2022-03-15 15:39:47,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:47,588 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:47,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:47,620 INFO L225 Difference]: With dead ends: 11427 [2022-03-15 15:39:47,620 INFO L226 Difference]: Without dead ends: 11012 [2022-03-15 15:39:47,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:47,620 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 166 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:47,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 206 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:47,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11012 states. [2022-03-15 15:39:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11012 to 5161. [2022-03-15 15:39:47,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.738178294573643) internal successors, (24449), 5160 states have internal predecessors, (24449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:47,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24449 transitions. [2022-03-15 15:39:47,757 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24449 transitions. Word has length 29 [2022-03-15 15:39:47,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:47,757 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24449 transitions. [2022-03-15 15:39:47,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:47,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24449 transitions. [2022-03-15 15:39:47,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:47,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:47,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:47,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1505 [2022-03-15 15:39:47,767 INFO L402 AbstractCegarLoop]: === Iteration 1507 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:47,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:47,767 INFO L85 PathProgramCache]: Analyzing trace with hash 2092027139, now seen corresponding path program 1502 times [2022-03-15 15:39:47,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:47,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48545544] [2022-03-15 15:39:47,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:47,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:47,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:47,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48545544] [2022-03-15 15:39:47,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48545544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:47,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:47,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:47,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436216238] [2022-03-15 15:39:47,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:47,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:47,894 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:47,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:47,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:47,895 INFO L87 Difference]: Start difference. First operand 5161 states and 24449 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:48,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:48,108 INFO L93 Difference]: Finished difference Result 11487 states and 51415 transitions. [2022-03-15 15:39:48,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:48,108 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:48,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:48,141 INFO L225 Difference]: With dead ends: 11487 [2022-03-15 15:39:48,141 INFO L226 Difference]: Without dead ends: 10964 [2022-03-15 15:39:48,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:48,141 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 167 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:48,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 225 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:48,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10964 states. [2022-03-15 15:39:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10964 to 5113. [2022-03-15 15:39:48,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.743544600938967) internal successors, (24249), 5112 states have internal predecessors, (24249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:48,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24249 transitions. [2022-03-15 15:39:48,276 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24249 transitions. Word has length 29 [2022-03-15 15:39:48,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:48,276 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24249 transitions. [2022-03-15 15:39:48,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24249 transitions. [2022-03-15 15:39:48,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:48,286 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:48,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:48,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1506 [2022-03-15 15:39:48,286 INFO L402 AbstractCegarLoop]: === Iteration 1508 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:48,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:48,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1681785341, now seen corresponding path program 1503 times [2022-03-15 15:39:48,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:48,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299828990] [2022-03-15 15:39:48,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:48,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:48,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:48,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:48,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299828990] [2022-03-15 15:39:48,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299828990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:48,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:48,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:48,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684348744] [2022-03-15 15:39:48,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:48,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:48,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:48,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:48,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:48,439 INFO L87 Difference]: Start difference. First operand 5113 states and 24249 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:48,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:48,635 INFO L93 Difference]: Finished difference Result 11423 states and 51163 transitions. [2022-03-15 15:39:48,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:48,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:48,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:48,668 INFO L225 Difference]: With dead ends: 11423 [2022-03-15 15:39:48,668 INFO L226 Difference]: Without dead ends: 11008 [2022-03-15 15:39:48,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:48,668 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 168 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:48,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 200 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:48,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11008 states. [2022-03-15 15:39:48,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11008 to 5161. [2022-03-15 15:39:48,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5161 states, 5160 states have (on average 4.733527131782946) internal successors, (24425), 5160 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:48,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 5161 states and 24425 transitions. [2022-03-15 15:39:48,809 INFO L78 Accepts]: Start accepts. Automaton has 5161 states and 24425 transitions. Word has length 29 [2022-03-15 15:39:48,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:48,809 INFO L470 AbstractCegarLoop]: Abstraction has 5161 states and 24425 transitions. [2022-03-15 15:39:48,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:48,810 INFO L276 IsEmpty]: Start isEmpty. Operand 5161 states and 24425 transitions. [2022-03-15 15:39:48,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:48,819 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:48,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:48,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1507 [2022-03-15 15:39:48,819 INFO L402 AbstractCegarLoop]: === Iteration 1509 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:48,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:48,820 INFO L85 PathProgramCache]: Analyzing trace with hash -485985149, now seen corresponding path program 1504 times [2022-03-15 15:39:48,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:48,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860779087] [2022-03-15 15:39:48,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:48,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:48,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:48,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:48,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860779087] [2022-03-15 15:39:48,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860779087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:48,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:48,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:48,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61130585] [2022-03-15 15:39:48,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:48,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:48,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:48,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:48,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:48,993 INFO L87 Difference]: Start difference. First operand 5161 states and 24425 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:49,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:49,202 INFO L93 Difference]: Finished difference Result 11479 states and 51367 transitions. [2022-03-15 15:39:49,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:49,202 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:49,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:49,237 INFO L225 Difference]: With dead ends: 11479 [2022-03-15 15:39:49,237 INFO L226 Difference]: Without dead ends: 10960 [2022-03-15 15:39:49,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:49,237 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 149 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:49,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 230 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:49,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10960 states. [2022-03-15 15:39:49,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10960 to 5113. [2022-03-15 15:39:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 4.738849765258216) internal successors, (24225), 5112 states have internal predecessors, (24225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:49,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 24225 transitions. [2022-03-15 15:39:49,386 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 24225 transitions. Word has length 29 [2022-03-15 15:39:49,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:49,386 INFO L470 AbstractCegarLoop]: Abstraction has 5113 states and 24225 transitions. [2022-03-15 15:39:49,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:49,386 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 24225 transitions. [2022-03-15 15:39:49,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:49,396 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:49,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:49,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1508 [2022-03-15 15:39:49,396 INFO L402 AbstractCegarLoop]: === Iteration 1510 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:49,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:49,396 INFO L85 PathProgramCache]: Analyzing trace with hash -2062153883, now seen corresponding path program 1505 times [2022-03-15 15:39:49,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:49,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729837746] [2022-03-15 15:39:49,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:49,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:49,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:49,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:49,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729837746] [2022-03-15 15:39:49,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729837746] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:49,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:49,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:49,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024540079] [2022-03-15 15:39:49,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:49,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:49,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:49,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:49,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:49,511 INFO L87 Difference]: Start difference. First operand 5113 states and 24225 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:49,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:49,708 INFO L93 Difference]: Finished difference Result 11571 states and 51807 transitions. [2022-03-15 15:39:49,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:49,708 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:49,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:49,742 INFO L225 Difference]: With dead ends: 11571 [2022-03-15 15:39:49,743 INFO L226 Difference]: Without dead ends: 11096 [2022-03-15 15:39:49,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:49,743 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 159 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:49,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 234 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:49,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11096 states. [2022-03-15 15:39:49,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11096 to 5189. [2022-03-15 15:39:49,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5189 states, 5188 states have (on average 4.724942174248265) internal successors, (24513), 5188 states have internal predecessors, (24513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:49,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 5189 states and 24513 transitions. [2022-03-15 15:39:49,892 INFO L78 Accepts]: Start accepts. Automaton has 5189 states and 24513 transitions. Word has length 29 [2022-03-15 15:39:49,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:49,892 INFO L470 AbstractCegarLoop]: Abstraction has 5189 states and 24513 transitions. [2022-03-15 15:39:49,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:49,892 INFO L276 IsEmpty]: Start isEmpty. Operand 5189 states and 24513 transitions. [2022-03-15 15:39:49,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:49,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:49,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:49,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1509 [2022-03-15 15:39:49,903 INFO L402 AbstractCegarLoop]: === Iteration 1511 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:49,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:49,903 INFO L85 PathProgramCache]: Analyzing trace with hash 189476419, now seen corresponding path program 1506 times [2022-03-15 15:39:49,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:49,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882722301] [2022-03-15 15:39:49,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:49,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:50,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:50,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:50,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882722301] [2022-03-15 15:39:50,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882722301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:50,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:50,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:50,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69992170] [2022-03-15 15:39:50,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:50,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:50,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:50,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:50,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:50,054 INFO L87 Difference]: Start difference. First operand 5189 states and 24513 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:50,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:50,316 INFO L93 Difference]: Finished difference Result 11567 states and 51719 transitions. [2022-03-15 15:39:50,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:50,316 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:50,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:50,353 INFO L225 Difference]: With dead ends: 11567 [2022-03-15 15:39:50,353 INFO L226 Difference]: Without dead ends: 10996 [2022-03-15 15:39:50,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:50,353 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 155 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:50,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 224 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:39:50,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10996 states. [2022-03-15 15:39:50,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10996 to 5089. [2022-03-15 15:39:50,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 5088 states have (on average 4.7439072327044025) internal successors, (24137), 5088 states have internal predecessors, (24137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:50,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 24137 transitions. [2022-03-15 15:39:50,514 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 24137 transitions. Word has length 29 [2022-03-15 15:39:50,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:50,514 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 24137 transitions. [2022-03-15 15:39:50,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:50,515 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 24137 transitions. [2022-03-15 15:39:50,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:50,525 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:50,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:50,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1510 [2022-03-15 15:39:50,525 INFO L402 AbstractCegarLoop]: === Iteration 1512 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:50,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:50,525 INFO L85 PathProgramCache]: Analyzing trace with hash -294174425, now seen corresponding path program 1507 times [2022-03-15 15:39:50,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:50,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170106576] [2022-03-15 15:39:50,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:50,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:50,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:50,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:50,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170106576] [2022-03-15 15:39:50,694 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170106576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:50,694 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:50,694 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:50,694 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548195492] [2022-03-15 15:39:50,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:50,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:50,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:50,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:50,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:50,695 INFO L87 Difference]: Start difference. First operand 5089 states and 24137 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:50,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:50,899 INFO L93 Difference]: Finished difference Result 12022 states and 53791 transitions. [2022-03-15 15:39:50,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:50,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:50,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:50,939 INFO L225 Difference]: With dead ends: 12022 [2022-03-15 15:39:50,939 INFO L226 Difference]: Without dead ends: 11480 [2022-03-15 15:39:50,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:50,939 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 165 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:50,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 220 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:50,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11480 states. [2022-03-15 15:39:51,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11480 to 5253. [2022-03-15 15:39:51,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 4.726389946686976) internal successors, (24823), 5252 states have internal predecessors, (24823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:51,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 24823 transitions. [2022-03-15 15:39:51,107 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 24823 transitions. Word has length 29 [2022-03-15 15:39:51,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:51,107 INFO L470 AbstractCegarLoop]: Abstraction has 5253 states and 24823 transitions. [2022-03-15 15:39:51,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:51,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 24823 transitions. [2022-03-15 15:39:51,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:51,118 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:51,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:51,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1511 [2022-03-15 15:39:51,118 INFO L402 AbstractCegarLoop]: === Iteration 1513 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:51,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:51,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1035126523, now seen corresponding path program 1508 times [2022-03-15 15:39:51,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:51,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991579584] [2022-03-15 15:39:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:51,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:51,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:51,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:51,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991579584] [2022-03-15 15:39:51,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991579584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:51,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:51,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:51,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374817666] [2022-03-15 15:39:51,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:51,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:51,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:51,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:51,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:51,229 INFO L87 Difference]: Start difference. First operand 5253 states and 24823 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:51,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:51,419 INFO L93 Difference]: Finished difference Result 11955 states and 53418 transitions. [2022-03-15 15:39:51,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:51,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:51,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:51,456 INFO L225 Difference]: With dead ends: 11955 [2022-03-15 15:39:51,456 INFO L226 Difference]: Without dead ends: 11370 [2022-03-15 15:39:51,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:51,456 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 150 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:51,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 233 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:51,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11370 states. [2022-03-15 15:39:51,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11370 to 5143. [2022-03-15 15:39:51,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.738234150136134) internal successors, (24364), 5142 states have internal predecessors, (24364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:51,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24364 transitions. [2022-03-15 15:39:51,628 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24364 transitions. Word has length 29 [2022-03-15 15:39:51,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:51,629 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24364 transitions. [2022-03-15 15:39:51,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:51,629 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24364 transitions. [2022-03-15 15:39:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:51,642 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:51,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:51,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1512 [2022-03-15 15:39:51,642 INFO L402 AbstractCegarLoop]: === Iteration 1514 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:51,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:51,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1140971387, now seen corresponding path program 1509 times [2022-03-15 15:39:51,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:51,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780649909] [2022-03-15 15:39:51,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:51,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:51,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:51,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780649909] [2022-03-15 15:39:51,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780649909] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:51,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:51,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:51,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208155815] [2022-03-15 15:39:51,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:51,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:51,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:51,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:51,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:51,785 INFO L87 Difference]: Start difference. First operand 5143 states and 24364 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:51,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:51,967 INFO L93 Difference]: Finished difference Result 12016 states and 53718 transitions. [2022-03-15 15:39:51,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:51,967 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:51,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:52,014 INFO L225 Difference]: With dead ends: 12016 [2022-03-15 15:39:52,014 INFO L226 Difference]: Without dead ends: 11474 [2022-03-15 15:39:52,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:52,014 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 159 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:52,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 214 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:52,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11474 states. [2022-03-15 15:39:52,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11474 to 5251. [2022-03-15 15:39:52,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 4.716952380952381) internal successors, (24764), 5250 states have internal predecessors, (24764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:52,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 24764 transitions. [2022-03-15 15:39:52,184 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 24764 transitions. Word has length 29 [2022-03-15 15:39:52,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:52,184 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 24764 transitions. [2022-03-15 15:39:52,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:52,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 24764 transitions. [2022-03-15 15:39:52,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:52,195 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:52,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:52,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1513 [2022-03-15 15:39:52,195 INFO L402 AbstractCegarLoop]: === Iteration 1515 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:52,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:52,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1353879941, now seen corresponding path program 1510 times [2022-03-15 15:39:52,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:52,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515229905] [2022-03-15 15:39:52,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:52,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:52,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:52,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515229905] [2022-03-15 15:39:52,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515229905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:52,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:52,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:52,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399951050] [2022-03-15 15:39:52,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:52,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:52,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:52,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:52,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:52,313 INFO L87 Difference]: Start difference. First operand 5251 states and 24764 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:52,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:52,505 INFO L93 Difference]: Finished difference Result 11945 states and 53335 transitions. [2022-03-15 15:39:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:52,505 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:52,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:52,542 INFO L225 Difference]: With dead ends: 11945 [2022-03-15 15:39:52,542 INFO L226 Difference]: Without dead ends: 11366 [2022-03-15 15:39:52,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:52,542 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 172 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:52,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 190 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:52,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2022-03-15 15:39:52,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 5143. [2022-03-15 15:39:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5143 states, 5142 states have (on average 4.7277323998444185) internal successors, (24310), 5142 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:52,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5143 states to 5143 states and 24310 transitions. [2022-03-15 15:39:52,702 INFO L78 Accepts]: Start accepts. Automaton has 5143 states and 24310 transitions. Word has length 29 [2022-03-15 15:39:52,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:52,702 INFO L470 AbstractCegarLoop]: Abstraction has 5143 states and 24310 transitions. [2022-03-15 15:39:52,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:52,702 INFO L276 IsEmpty]: Start isEmpty. Operand 5143 states and 24310 transitions. [2022-03-15 15:39:52,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:52,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:52,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:52,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1514 [2022-03-15 15:39:52,713 INFO L402 AbstractCegarLoop]: === Iteration 1516 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:52,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:52,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1394804253, now seen corresponding path program 1511 times [2022-03-15 15:39:52,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:52,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485391036] [2022-03-15 15:39:52,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:52,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:52,825 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:52,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485391036] [2022-03-15 15:39:52,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485391036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:52,825 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:52,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:52,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112916153] [2022-03-15 15:39:52,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:52,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:52,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:52,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:52,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:52,825 INFO L87 Difference]: Start difference. First operand 5143 states and 24310 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:53,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:53,012 INFO L93 Difference]: Finished difference Result 11850 states and 52994 transitions. [2022-03-15 15:39:53,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:53,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:53,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:53,049 INFO L225 Difference]: With dead ends: 11850 [2022-03-15 15:39:53,049 INFO L226 Difference]: Without dead ends: 11375 [2022-03-15 15:39:53,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:53,050 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 165 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:53,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 213 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:53,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11375 states. [2022-03-15 15:39:53,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11375 to 5219. [2022-03-15 15:39:53,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 4.714066692219241) internal successors, (24598), 5218 states have internal predecessors, (24598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:53,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 24598 transitions. [2022-03-15 15:39:53,212 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 24598 transitions. Word has length 29 [2022-03-15 15:39:53,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:53,212 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 24598 transitions. [2022-03-15 15:39:53,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:53,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 24598 transitions. [2022-03-15 15:39:53,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:53,223 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:53,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:53,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1515 [2022-03-15 15:39:53,223 INFO L402 AbstractCegarLoop]: === Iteration 1517 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:53,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:53,223 INFO L85 PathProgramCache]: Analyzing trace with hash -313741627, now seen corresponding path program 1512 times [2022-03-15 15:39:53,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:53,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940491761] [2022-03-15 15:39:53,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:53,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:53,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:53,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:53,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940491761] [2022-03-15 15:39:53,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940491761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:53,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:53,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:53,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011836862] [2022-03-15 15:39:53,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:53,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:53,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:53,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:53,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:53,342 INFO L87 Difference]: Start difference. First operand 5219 states and 24598 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:53,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:53,529 INFO L93 Difference]: Finished difference Result 11846 states and 52906 transitions. [2022-03-15 15:39:53,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:53,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:53,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:53,575 INFO L225 Difference]: With dead ends: 11846 [2022-03-15 15:39:53,576 INFO L226 Difference]: Without dead ends: 11225 [2022-03-15 15:39:53,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:53,576 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 167 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:53,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 192 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:53,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11225 states. [2022-03-15 15:39:53,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11225 to 5069. [2022-03-15 15:39:53,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 5068 states have (on average 4.748816101026046) internal successors, (24067), 5068 states have internal predecessors, (24067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:53,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 24067 transitions. [2022-03-15 15:39:53,748 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 24067 transitions. Word has length 29 [2022-03-15 15:39:53,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:53,748 INFO L470 AbstractCegarLoop]: Abstraction has 5069 states and 24067 transitions. [2022-03-15 15:39:53,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:53,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 24067 transitions. [2022-03-15 15:39:53,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:53,759 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:53,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:53,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1516 [2022-03-15 15:39:53,759 INFO L402 AbstractCegarLoop]: === Iteration 1518 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:53,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:53,759 INFO L85 PathProgramCache]: Analyzing trace with hash 793591969, now seen corresponding path program 1513 times [2022-03-15 15:39:53,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:53,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776355405] [2022-03-15 15:39:53,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:53,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:53,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:53,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776355405] [2022-03-15 15:39:53,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776355405] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:53,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:53,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:53,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156789286] [2022-03-15 15:39:53,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:53,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:53,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:53,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:53,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:53,955 INFO L87 Difference]: Start difference. First operand 5069 states and 24067 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:54,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:54,221 INFO L93 Difference]: Finished difference Result 11220 states and 50284 transitions. [2022-03-15 15:39:54,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:54,222 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:54,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:54,259 INFO L225 Difference]: With dead ends: 11220 [2022-03-15 15:39:54,259 INFO L226 Difference]: Without dead ends: 10805 [2022-03-15 15:39:54,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:54,260 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 179 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:54,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 193 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:54,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10805 states. [2022-03-15 15:39:54,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10805 to 5153. [2022-03-15 15:39:54,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.742818322981367) internal successors, (24435), 5152 states have internal predecessors, (24435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:54,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24435 transitions. [2022-03-15 15:39:54,414 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24435 transitions. Word has length 29 [2022-03-15 15:39:54,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:54,414 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24435 transitions. [2022-03-15 15:39:54,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:54,414 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24435 transitions. [2022-03-15 15:39:54,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:54,424 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:54,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:54,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1517 [2022-03-15 15:39:54,424 INFO L402 AbstractCegarLoop]: === Iteration 1519 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:54,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:54,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1022878979, now seen corresponding path program 1514 times [2022-03-15 15:39:54,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:54,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191913754] [2022-03-15 15:39:54,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:54,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:54,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:54,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:54,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191913754] [2022-03-15 15:39:54,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191913754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:54,540 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:54,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:54,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803103903] [2022-03-15 15:39:54,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:54,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:54,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:54,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:54,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:54,540 INFO L87 Difference]: Start difference. First operand 5153 states and 24435 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:54,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:54,722 INFO L93 Difference]: Finished difference Result 11282 states and 50505 transitions. [2022-03-15 15:39:54,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:54,722 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:54,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:54,755 INFO L225 Difference]: With dead ends: 11282 [2022-03-15 15:39:54,755 INFO L226 Difference]: Without dead ends: 10757 [2022-03-15 15:39:54,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:54,755 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 163 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:54,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 210 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:54,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10757 states. [2022-03-15 15:39:54,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10757 to 5105. [2022-03-15 15:39:54,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.748236677115988) internal successors, (24235), 5104 states have internal predecessors, (24235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:54,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24235 transitions. [2022-03-15 15:39:54,898 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24235 transitions. Word has length 29 [2022-03-15 15:39:54,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:54,898 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24235 transitions. [2022-03-15 15:39:54,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:54,898 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24235 transitions. [2022-03-15 15:39:54,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:54,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:54,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:54,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1518 [2022-03-15 15:39:54,909 INFO L402 AbstractCegarLoop]: === Iteration 1520 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:54,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:54,909 INFO L85 PathProgramCache]: Analyzing trace with hash -380367741, now seen corresponding path program 1515 times [2022-03-15 15:39:54,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:54,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926646961] [2022-03-15 15:39:54,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:54,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:55,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:55,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926646961] [2022-03-15 15:39:55,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926646961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:55,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:55,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:55,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367083138] [2022-03-15 15:39:55,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:55,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:55,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:55,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:55,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:55,040 INFO L87 Difference]: Start difference. First operand 5105 states and 24235 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:55,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:55,205 INFO L93 Difference]: Finished difference Result 11218 states and 50255 transitions. [2022-03-15 15:39:55,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:55,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:55,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:55,239 INFO L225 Difference]: With dead ends: 11218 [2022-03-15 15:39:55,239 INFO L226 Difference]: Without dead ends: 10803 [2022-03-15 15:39:55,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:55,240 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 179 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:55,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 193 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:55,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10803 states. [2022-03-15 15:39:55,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10803 to 5153. [2022-03-15 15:39:55,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.738159937888199) internal successors, (24411), 5152 states have internal predecessors, (24411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:55,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24411 transitions. [2022-03-15 15:39:55,388 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24411 transitions. Word has length 29 [2022-03-15 15:39:55,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:55,388 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24411 transitions. [2022-03-15 15:39:55,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24411 transitions. [2022-03-15 15:39:55,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:55,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:55,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:55,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1519 [2022-03-15 15:39:55,399 INFO L402 AbstractCegarLoop]: === Iteration 1521 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:55,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:55,399 INFO L85 PathProgramCache]: Analyzing trace with hash 161821699, now seen corresponding path program 1516 times [2022-03-15 15:39:55,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:55,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864711412] [2022-03-15 15:39:55,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:55,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:55,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:55,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:55,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864711412] [2022-03-15 15:39:55,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864711412] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:55,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:55,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:55,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173038147] [2022-03-15 15:39:55,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:55,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:55,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:55,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:55,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:55,503 INFO L87 Difference]: Start difference. First operand 5153 states and 24411 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:55,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:55,692 INFO L93 Difference]: Finished difference Result 11278 states and 50471 transitions. [2022-03-15 15:39:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:55,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:55,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:55,724 INFO L225 Difference]: With dead ends: 11278 [2022-03-15 15:39:55,724 INFO L226 Difference]: Without dead ends: 10755 [2022-03-15 15:39:55,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:55,725 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 145 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:55,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 242 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:55,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10755 states. [2022-03-15 15:39:55,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10755 to 5105. [2022-03-15 15:39:55,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.743534482758621) internal successors, (24211), 5104 states have internal predecessors, (24211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:55,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24211 transitions. [2022-03-15 15:39:55,862 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24211 transitions. Word has length 29 [2022-03-15 15:39:55,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:55,862 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24211 transitions. [2022-03-15 15:39:55,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:55,862 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24211 transitions. [2022-03-15 15:39:55,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:55,872 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:55,872 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:55,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1520 [2022-03-15 15:39:55,873 INFO L402 AbstractCegarLoop]: === Iteration 1522 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:55,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:55,873 INFO L85 PathProgramCache]: Analyzing trace with hash 118908901, now seen corresponding path program 1517 times [2022-03-15 15:39:55,873 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:55,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208393252] [2022-03-15 15:39:55,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:55,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:55,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:55,978 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208393252] [2022-03-15 15:39:55,978 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208393252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:55,978 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:55,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:55,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291324169] [2022-03-15 15:39:55,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:55,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:55,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:55,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:55,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:55,979 INFO L87 Difference]: Start difference. First operand 5105 states and 24211 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:56,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:56,138 INFO L93 Difference]: Finished difference Result 11372 states and 50916 transitions. [2022-03-15 15:39:56,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:56,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:56,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:56,171 INFO L225 Difference]: With dead ends: 11372 [2022-03-15 15:39:56,172 INFO L226 Difference]: Without dead ends: 10895 [2022-03-15 15:39:56,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:56,172 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 165 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:56,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 208 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:56,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10895 states. [2022-03-15 15:39:56,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10895 to 5183. [2022-03-15 15:39:56,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5183 states, 5182 states have (on average 4.728676186800463) internal successors, (24504), 5182 states have internal predecessors, (24504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:56,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5183 states to 5183 states and 24504 transitions. [2022-03-15 15:39:56,312 INFO L78 Accepts]: Start accepts. Automaton has 5183 states and 24504 transitions. Word has length 29 [2022-03-15 15:39:56,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:56,312 INFO L470 AbstractCegarLoop]: Abstraction has 5183 states and 24504 transitions. [2022-03-15 15:39:56,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:56,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5183 states and 24504 transitions. [2022-03-15 15:39:56,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:56,322 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:56,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:56,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1521 [2022-03-15 15:39:56,322 INFO L402 AbstractCegarLoop]: === Iteration 1523 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:56,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:56,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1273235645, now seen corresponding path program 1518 times [2022-03-15 15:39:56,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:56,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292518295] [2022-03-15 15:39:56,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:56,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:56,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:56,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:56,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292518295] [2022-03-15 15:39:56,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292518295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:56,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:56,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:56,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914161834] [2022-03-15 15:39:56,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:56,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:56,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:56,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:56,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:56,429 INFO L87 Difference]: Start difference. First operand 5183 states and 24504 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:56,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:56,613 INFO L93 Difference]: Finished difference Result 11370 states and 50833 transitions. [2022-03-15 15:39:56,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:56,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:56,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:56,645 INFO L225 Difference]: With dead ends: 11370 [2022-03-15 15:39:56,645 INFO L226 Difference]: Without dead ends: 10793 [2022-03-15 15:39:56,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:56,645 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 168 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:56,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 190 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:56,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10793 states. [2022-03-15 15:39:56,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10793 to 5081. [2022-03-15 15:39:56,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.748622047244094) internal successors, (24123), 5080 states have internal predecessors, (24123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:56,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24123 transitions. [2022-03-15 15:39:56,781 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24123 transitions. Word has length 29 [2022-03-15 15:39:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:56,781 INFO L470 AbstractCegarLoop]: Abstraction has 5081 states and 24123 transitions. [2022-03-15 15:39:56,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:56,781 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24123 transitions. [2022-03-15 15:39:56,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:56,790 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:56,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:56,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1522 [2022-03-15 15:39:56,790 INFO L402 AbstractCegarLoop]: === Iteration 1524 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:56,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:56,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1791773565, now seen corresponding path program 1519 times [2022-03-15 15:39:56,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:56,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134830700] [2022-03-15 15:39:56,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:56,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:56,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:56,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:56,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134830700] [2022-03-15 15:39:56,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134830700] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:56,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:56,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:56,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692795418] [2022-03-15 15:39:56,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:56,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:56,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:56,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:56,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:56,926 INFO L87 Difference]: Start difference. First operand 5081 states and 24123 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:57,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:57,122 INFO L93 Difference]: Finished difference Result 11214 states and 50253 transitions. [2022-03-15 15:39:57,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:57,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:57,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:57,157 INFO L225 Difference]: With dead ends: 11214 [2022-03-15 15:39:57,157 INFO L226 Difference]: Without dead ends: 10799 [2022-03-15 15:39:57,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:57,157 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 162 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:57,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 208 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:57,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10799 states. [2022-03-15 15:39:57,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10799 to 5153. [2022-03-15 15:39:57,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.740489130434782) internal successors, (24423), 5152 states have internal predecessors, (24423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:57,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24423 transitions. [2022-03-15 15:39:57,297 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24423 transitions. Word has length 29 [2022-03-15 15:39:57,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:57,297 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24423 transitions. [2022-03-15 15:39:57,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:57,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24423 transitions. [2022-03-15 15:39:57,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:57,307 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:57,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:57,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1523 [2022-03-15 15:39:57,307 INFO L402 AbstractCegarLoop]: === Iteration 1525 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:57,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:57,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1562486555, now seen corresponding path program 1520 times [2022-03-15 15:39:57,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:57,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239577065] [2022-03-15 15:39:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:57,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:57,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:57,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239577065] [2022-03-15 15:39:57,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239577065] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:57,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:57,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:57,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973177621] [2022-03-15 15:39:57,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:57,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:57,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:57,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:57,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:57,460 INFO L87 Difference]: Start difference. First operand 5153 states and 24423 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:57,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:57,686 INFO L93 Difference]: Finished difference Result 11276 states and 50474 transitions. [2022-03-15 15:39:57,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:57,686 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:57,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:57,719 INFO L225 Difference]: With dead ends: 11276 [2022-03-15 15:39:57,719 INFO L226 Difference]: Without dead ends: 10751 [2022-03-15 15:39:57,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:57,720 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 178 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:57,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 200 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:57,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10751 states. [2022-03-15 15:39:57,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10751 to 5105. [2022-03-15 15:39:57,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.745885579937304) internal successors, (24223), 5104 states have internal predecessors, (24223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:57,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24223 transitions. [2022-03-15 15:39:57,852 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24223 transitions. Word has length 29 [2022-03-15 15:39:57,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:57,853 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24223 transitions. [2022-03-15 15:39:57,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:57,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24223 transitions. [2022-03-15 15:39:57,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:57,862 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:57,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:57,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1524 [2022-03-15 15:39:57,862 INFO L402 AbstractCegarLoop]: === Iteration 1526 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:57,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:57,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1391860733, now seen corresponding path program 1521 times [2022-03-15 15:39:57,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:57,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243906528] [2022-03-15 15:39:57,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:57,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:58,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:58,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:58,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243906528] [2022-03-15 15:39:58,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243906528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:58,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:58,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:58,025 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064492363] [2022-03-15 15:39:58,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:58,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:58,025 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:58,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:58,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:58,025 INFO L87 Difference]: Start difference. First operand 5105 states and 24223 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:58,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:58,214 INFO L93 Difference]: Finished difference Result 11208 states and 50212 transitions. [2022-03-15 15:39:58,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:58,214 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:58,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:58,246 INFO L225 Difference]: With dead ends: 11208 [2022-03-15 15:39:58,247 INFO L226 Difference]: Without dead ends: 10793 [2022-03-15 15:39:58,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:58,247 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 161 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:58,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 215 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:58,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10793 states. [2022-03-15 15:39:58,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10793 to 5153. [2022-03-15 15:39:58,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.735830745341615) internal successors, (24399), 5152 states have internal predecessors, (24399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:58,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24399 transitions. [2022-03-15 15:39:58,383 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24399 transitions. Word has length 29 [2022-03-15 15:39:58,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:58,383 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24399 transitions. [2022-03-15 15:39:58,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:58,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24399 transitions. [2022-03-15 15:39:58,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:58,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:58,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:58,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1525 [2022-03-15 15:39:58,393 INFO L402 AbstractCegarLoop]: === Iteration 1527 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:58,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:58,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1560341379, now seen corresponding path program 1522 times [2022-03-15 15:39:58,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:58,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623455469] [2022-03-15 15:39:58,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:58,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:58,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:58,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:58,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623455469] [2022-03-15 15:39:58,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623455469] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:58,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:58,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:58,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46833552] [2022-03-15 15:39:58,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:58,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:58,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:58,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:58,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:58,511 INFO L87 Difference]: Start difference. First operand 5153 states and 24399 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:58,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:58,673 INFO L93 Difference]: Finished difference Result 11264 states and 50416 transitions. [2022-03-15 15:39:58,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:58,674 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:58,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:58,705 INFO L225 Difference]: With dead ends: 11264 [2022-03-15 15:39:58,705 INFO L226 Difference]: Without dead ends: 10745 [2022-03-15 15:39:58,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:58,705 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 177 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:58,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 185 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2022-03-15 15:39:58,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 5105. [2022-03-15 15:39:58,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.741183385579937) internal successors, (24199), 5104 states have internal predecessors, (24199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24199 transitions. [2022-03-15 15:39:58,839 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24199 transitions. Word has length 29 [2022-03-15 15:39:58,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:58,840 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24199 transitions. [2022-03-15 15:39:58,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24199 transitions. [2022-03-15 15:39:58,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:58,849 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:58,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:58,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1526 [2022-03-15 15:39:58,849 INFO L402 AbstractCegarLoop]: === Iteration 1528 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:58,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:58,850 INFO L85 PathProgramCache]: Analyzing trace with hash 845229925, now seen corresponding path program 1523 times [2022-03-15 15:39:58,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:58,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584977612] [2022-03-15 15:39:58,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:58,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:58,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:58,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:58,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584977612] [2022-03-15 15:39:58,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584977612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:58,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:58,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:58,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236625911] [2022-03-15 15:39:58,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:58,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:58,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:58,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:58,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:58,982 INFO L87 Difference]: Start difference. First operand 5105 states and 24199 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:59,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:59,167 INFO L93 Difference]: Finished difference Result 11360 states and 50866 transitions. [2022-03-15 15:39:59,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:59,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:59,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:59,200 INFO L225 Difference]: With dead ends: 11360 [2022-03-15 15:39:59,201 INFO L226 Difference]: Without dead ends: 10883 [2022-03-15 15:39:59,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:59,201 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 155 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:59,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 220 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:59,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2022-03-15 15:39:59,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 5181. [2022-03-15 15:39:59,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 5180 states have (on average 4.727220077220077) internal successors, (24487), 5180 states have internal predecessors, (24487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:59,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 24487 transitions. [2022-03-15 15:39:59,337 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 24487 transitions. Word has length 29 [2022-03-15 15:39:59,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:59,337 INFO L470 AbstractCegarLoop]: Abstraction has 5181 states and 24487 transitions. [2022-03-15 15:39:59,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:59,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 24487 transitions. [2022-03-15 15:39:59,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:59,347 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:59,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:59,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1527 [2022-03-15 15:39:59,347 INFO L402 AbstractCegarLoop]: === Iteration 1529 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:59,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash 104277827, now seen corresponding path program 1524 times [2022-03-15 15:39:59,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:59,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618897863] [2022-03-15 15:39:59,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:59,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:59,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:59,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:59,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618897863] [2022-03-15 15:39:59,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618897863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:59,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:59,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:59,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34516635] [2022-03-15 15:39:59,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:59,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:59,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:59,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:59,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:59,456 INFO L87 Difference]: Start difference. First operand 5181 states and 24487 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:59,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:39:59,619 INFO L93 Difference]: Finished difference Result 11354 states and 50773 transitions. [2022-03-15 15:39:59,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:39:59,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:39:59,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:39:59,651 INFO L225 Difference]: With dead ends: 11354 [2022-03-15 15:39:59,651 INFO L226 Difference]: Without dead ends: 10783 [2022-03-15 15:39:59,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:39:59,651 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 157 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:39:59,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 207 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:39:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10783 states. [2022-03-15 15:39:59,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10783 to 5081. [2022-03-15 15:39:59,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.746259842519685) internal successors, (24111), 5080 states have internal predecessors, (24111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:59,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24111 transitions. [2022-03-15 15:39:59,783 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24111 transitions. Word has length 29 [2022-03-15 15:39:59,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:39:59,783 INFO L470 AbstractCegarLoop]: Abstraction has 5081 states and 24111 transitions. [2022-03-15 15:39:59,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:39:59,783 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24111 transitions. [2022-03-15 15:39:59,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:39:59,792 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:39:59,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:39:59,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1528 [2022-03-15 15:39:59,793 INFO L402 AbstractCegarLoop]: === Iteration 1530 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:39:59,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:39:59,793 INFO L85 PathProgramCache]: Analyzing trace with hash 712265573, now seen corresponding path program 1525 times [2022-03-15 15:39:59,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:39:59,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520433666] [2022-03-15 15:39:59,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:39:59,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:39:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:39:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:39:59,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:39:59,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520433666] [2022-03-15 15:39:59,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520433666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:39:59,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:39:59,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:39:59,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048771281] [2022-03-15 15:39:59,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:39:59,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:39:59,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:39:59,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:39:59,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:39:59,904 INFO L87 Difference]: Start difference. First operand 5081 states and 24111 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:00,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:00,075 INFO L93 Difference]: Finished difference Result 11210 states and 50231 transitions. [2022-03-15 15:40:00,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:00,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:00,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:00,110 INFO L225 Difference]: With dead ends: 11210 [2022-03-15 15:40:00,110 INFO L226 Difference]: Without dead ends: 10795 [2022-03-15 15:40:00,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:00,110 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 156 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:00,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 231 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:00,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10795 states. [2022-03-15 15:40:00,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10795 to 5153. [2022-03-15 15:40:00,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.738159937888199) internal successors, (24411), 5152 states have internal predecessors, (24411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:00,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24411 transitions. [2022-03-15 15:40:00,326 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24411 transitions. Word has length 29 [2022-03-15 15:40:00,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:00,326 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24411 transitions. [2022-03-15 15:40:00,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:00,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24411 transitions. [2022-03-15 15:40:00,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:00,340 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:00,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:00,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1529 [2022-03-15 15:40:00,340 INFO L402 AbstractCegarLoop]: === Iteration 1531 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:00,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:00,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1254455013, now seen corresponding path program 1526 times [2022-03-15 15:40:00,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:00,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572637915] [2022-03-15 15:40:00,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:00,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:00,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:00,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:00,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572637915] [2022-03-15 15:40:00,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572637915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:00,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:00,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:00,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389599940] [2022-03-15 15:40:00,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:00,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:00,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:00,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:00,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:00,514 INFO L87 Difference]: Start difference. First operand 5153 states and 24411 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:00,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:00,718 INFO L93 Difference]: Finished difference Result 11270 states and 50447 transitions. [2022-03-15 15:40:00,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:00,718 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:00,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:00,750 INFO L225 Difference]: With dead ends: 11270 [2022-03-15 15:40:00,751 INFO L226 Difference]: Without dead ends: 10747 [2022-03-15 15:40:00,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:00,751 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 179 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:00,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 199 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:00,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10747 states. [2022-03-15 15:40:00,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10747 to 5105. [2022-03-15 15:40:00,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.743534482758621) internal successors, (24211), 5104 states have internal predecessors, (24211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24211 transitions. [2022-03-15 15:40:00,894 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24211 transitions. Word has length 29 [2022-03-15 15:40:00,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:00,894 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24211 transitions. [2022-03-15 15:40:00,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:00,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24211 transitions. [2022-03-15 15:40:00,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:00,904 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:00,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:00,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1530 [2022-03-15 15:40:00,904 INFO L402 AbstractCegarLoop]: === Iteration 1532 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:00,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:00,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1310795965, now seen corresponding path program 1527 times [2022-03-15 15:40:00,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:00,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433808131] [2022-03-15 15:40:00,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:00,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:01,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:01,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:01,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433808131] [2022-03-15 15:40:01,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433808131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:01,062 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:01,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:01,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798417699] [2022-03-15 15:40:01,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:01,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:01,063 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:01,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:01,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:01,063 INFO L87 Difference]: Start difference. First operand 5105 states and 24211 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:01,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:01,297 INFO L93 Difference]: Finished difference Result 11206 states and 50195 transitions. [2022-03-15 15:40:01,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:01,297 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:01,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:01,332 INFO L225 Difference]: With dead ends: 11206 [2022-03-15 15:40:01,332 INFO L226 Difference]: Without dead ends: 10791 [2022-03-15 15:40:01,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:01,332 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 157 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:01,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 229 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:01,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10791 states. [2022-03-15 15:40:01,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10791 to 5153. [2022-03-15 15:40:01,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 5152 states have (on average 4.7335015527950315) internal successors, (24387), 5152 states have internal predecessors, (24387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:01,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 24387 transitions. [2022-03-15 15:40:01,469 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 24387 transitions. Word has length 29 [2022-03-15 15:40:01,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:01,470 INFO L470 AbstractCegarLoop]: Abstraction has 5153 states and 24387 transitions. [2022-03-15 15:40:01,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:01,470 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 24387 transitions. [2022-03-15 15:40:01,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:01,479 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:01,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:01,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1531 [2022-03-15 15:40:01,480 INFO L402 AbstractCegarLoop]: === Iteration 1533 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:01,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:01,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1333508379, now seen corresponding path program 1528 times [2022-03-15 15:40:01,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:01,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776655568] [2022-03-15 15:40:01,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:01,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:01,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:01,637 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:01,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776655568] [2022-03-15 15:40:01,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776655568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:01,637 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:01,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:01,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040098619] [2022-03-15 15:40:01,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:01,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:01,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:01,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:01,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:01,638 INFO L87 Difference]: Start difference. First operand 5153 states and 24387 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:01,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:01,850 INFO L93 Difference]: Finished difference Result 11262 states and 50399 transitions. [2022-03-15 15:40:01,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:01,851 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:01,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:01,885 INFO L225 Difference]: With dead ends: 11262 [2022-03-15 15:40:01,886 INFO L226 Difference]: Without dead ends: 10743 [2022-03-15 15:40:01,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:01,886 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 162 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:01,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 199 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:01,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10743 states. [2022-03-15 15:40:02,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10743 to 5105. [2022-03-15 15:40:02,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5105 states, 5104 states have (on average 4.7388322884012535) internal successors, (24187), 5104 states have internal predecessors, (24187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:02,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 24187 transitions. [2022-03-15 15:40:02,043 INFO L78 Accepts]: Start accepts. Automaton has 5105 states and 24187 transitions. Word has length 29 [2022-03-15 15:40:02,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:02,043 INFO L470 AbstractCegarLoop]: Abstraction has 5105 states and 24187 transitions. [2022-03-15 15:40:02,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:02,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5105 states and 24187 transitions. [2022-03-15 15:40:02,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:02,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:02,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:02,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1532 [2022-03-15 15:40:02,053 INFO L402 AbstractCegarLoop]: === Iteration 1534 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:02,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:02,053 INFO L85 PathProgramCache]: Analyzing trace with hash -652698011, now seen corresponding path program 1529 times [2022-03-15 15:40:02,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:02,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200605349] [2022-03-15 15:40:02,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:02,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:02,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:02,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200605349] [2022-03-15 15:40:02,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200605349] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:02,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:02,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:02,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631782520] [2022-03-15 15:40:02,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:02,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:02,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:02,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:02,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:02,217 INFO L87 Difference]: Start difference. First operand 5105 states and 24187 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:02,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:02,423 INFO L93 Difference]: Finished difference Result 11354 states and 50839 transitions. [2022-03-15 15:40:02,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:02,423 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:02,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:02,457 INFO L225 Difference]: With dead ends: 11354 [2022-03-15 15:40:02,457 INFO L226 Difference]: Without dead ends: 10879 [2022-03-15 15:40:02,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:02,457 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 170 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:02,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 192 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:02,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10879 states. [2022-03-15 15:40:02,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10879 to 5181. [2022-03-15 15:40:02,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 5180 states have (on average 4.724903474903475) internal successors, (24475), 5180 states have internal predecessors, (24475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:02,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 24475 transitions. [2022-03-15 15:40:02,596 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 24475 transitions. Word has length 29 [2022-03-15 15:40:02,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:02,596 INFO L470 AbstractCegarLoop]: Abstraction has 5181 states and 24475 transitions. [2022-03-15 15:40:02,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:02,596 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 24475 transitions. [2022-03-15 15:40:02,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:02,606 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:02,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:02,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1533 [2022-03-15 15:40:02,606 INFO L402 AbstractCegarLoop]: === Iteration 1535 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:02,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:02,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1598932291, now seen corresponding path program 1530 times [2022-03-15 15:40:02,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:02,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416944730] [2022-03-15 15:40:02,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:02,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:02,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:02,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:02,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416944730] [2022-03-15 15:40:02,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416944730] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:02,770 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:02,770 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:02,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401833407] [2022-03-15 15:40:02,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:02,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:02,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:02,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:02,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:02,770 INFO L87 Difference]: Start difference. First operand 5181 states and 24475 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:03,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:03,019 INFO L93 Difference]: Finished difference Result 11350 states and 50751 transitions. [2022-03-15 15:40:03,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:03,020 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:03,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:03,053 INFO L225 Difference]: With dead ends: 11350 [2022-03-15 15:40:03,054 INFO L226 Difference]: Without dead ends: 10779 [2022-03-15 15:40:03,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:03,054 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 148 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:03,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 239 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 15:40:03,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10779 states. [2022-03-15 15:40:03,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10779 to 5081. [2022-03-15 15:40:03,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5081 states, 5080 states have (on average 4.743897637795276) internal successors, (24099), 5080 states have internal predecessors, (24099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:03,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5081 states to 5081 states and 24099 transitions. [2022-03-15 15:40:03,206 INFO L78 Accepts]: Start accepts. Automaton has 5081 states and 24099 transitions. Word has length 29 [2022-03-15 15:40:03,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:03,207 INFO L470 AbstractCegarLoop]: Abstraction has 5081 states and 24099 transitions. [2022-03-15 15:40:03,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:03,207 INFO L276 IsEmpty]: Start isEmpty. Operand 5081 states and 24099 transitions. [2022-03-15 15:40:03,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:03,217 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:03,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:03,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1534 [2022-03-15 15:40:03,217 INFO L402 AbstractCegarLoop]: === Iteration 1536 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:03,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:03,218 INFO L85 PathProgramCache]: Analyzing trace with hash -2024435257, now seen corresponding path program 1531 times [2022-03-15 15:40:03,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:03,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740793473] [2022-03-15 15:40:03,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:03,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:03,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:03,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:03,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740793473] [2022-03-15 15:40:03,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740793473] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:03,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:03,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:03,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992075266] [2022-03-15 15:40:03,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:03,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:03,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:03,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:03,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:03,385 INFO L87 Difference]: Start difference. First operand 5081 states and 24099 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:03,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:03,603 INFO L93 Difference]: Finished difference Result 11498 states and 51537 transitions. [2022-03-15 15:40:03,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:03,607 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:03,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:03,645 INFO L225 Difference]: With dead ends: 11498 [2022-03-15 15:40:03,645 INFO L226 Difference]: Without dead ends: 11021 [2022-03-15 15:40:03,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:03,645 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 152 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:03,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 213 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:03,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11021 states. [2022-03-15 15:40:03,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11021 to 5197. [2022-03-15 15:40:03,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5197 states, 5196 states have (on average 4.73306389530408) internal successors, (24593), 5196 states have internal predecessors, (24593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:03,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 5197 states and 24593 transitions. [2022-03-15 15:40:03,791 INFO L78 Accepts]: Start accepts. Automaton has 5197 states and 24593 transitions. Word has length 29 [2022-03-15 15:40:03,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:03,792 INFO L470 AbstractCegarLoop]: Abstraction has 5197 states and 24593 transitions. [2022-03-15 15:40:03,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:03,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5197 states and 24593 transitions. [2022-03-15 15:40:03,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:03,802 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:03,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:03,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1535 [2022-03-15 15:40:03,802 INFO L402 AbstractCegarLoop]: === Iteration 1537 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:03,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:03,803 INFO L85 PathProgramCache]: Analyzing trace with hash 878387493, now seen corresponding path program 1532 times [2022-03-15 15:40:03,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:03,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047559943] [2022-03-15 15:40:03,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:03,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:03,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:03,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:03,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047559943] [2022-03-15 15:40:03,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047559943] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:03,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:03,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:03,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194454305] [2022-03-15 15:40:03,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:03,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:03,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:03,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:03,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:03,970 INFO L87 Difference]: Start difference. First operand 5197 states and 24593 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:04,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:04,206 INFO L93 Difference]: Finished difference Result 11496 states and 51454 transitions. [2022-03-15 15:40:04,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:04,207 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:04,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:04,240 INFO L225 Difference]: With dead ends: 11496 [2022-03-15 15:40:04,240 INFO L226 Difference]: Without dead ends: 10943 [2022-03-15 15:40:04,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:04,240 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 152 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:04,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 236 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:04,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10943 states. [2022-03-15 15:40:04,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10943 to 5119. [2022-03-15 15:40:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.740523642047675) internal successors, (24262), 5118 states have internal predecessors, (24262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:04,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24262 transitions. [2022-03-15 15:40:04,379 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24262 transitions. Word has length 29 [2022-03-15 15:40:04,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:04,379 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24262 transitions. [2022-03-15 15:40:04,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:04,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24262 transitions. [2022-03-15 15:40:04,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:04,388 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:04,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:04,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1536 [2022-03-15 15:40:04,389 INFO L402 AbstractCegarLoop]: === Iteration 1538 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:04,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:04,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1423735077, now seen corresponding path program 1533 times [2022-03-15 15:40:04,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:04,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141234482] [2022-03-15 15:40:04,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:04,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:04,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:04,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:04,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141234482] [2022-03-15 15:40:04,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141234482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:04,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:04,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:04,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088384954] [2022-03-15 15:40:04,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:04,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:04,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:04,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:04,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:04,552 INFO L87 Difference]: Start difference. First operand 5119 states and 24262 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:04,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:04,764 INFO L93 Difference]: Finished difference Result 11492 states and 51480 transitions. [2022-03-15 15:40:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:04,765 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:04,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:04,797 INFO L225 Difference]: With dead ends: 11492 [2022-03-15 15:40:04,797 INFO L226 Difference]: Without dead ends: 11015 [2022-03-15 15:40:04,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:04,798 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 154 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:04,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 219 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:04,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11015 states. [2022-03-15 15:40:04,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11015 to 5195. [2022-03-15 15:40:04,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.7266076241817485) internal successors, (24550), 5194 states have internal predecessors, (24550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24550 transitions. [2022-03-15 15:40:04,936 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24550 transitions. Word has length 29 [2022-03-15 15:40:04,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:04,936 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24550 transitions. [2022-03-15 15:40:04,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:04,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24550 transitions. [2022-03-15 15:40:04,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:04,946 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:04,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:04,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1537 [2022-03-15 15:40:04,946 INFO L402 AbstractCegarLoop]: === Iteration 1539 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:04,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:04,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1027573339, now seen corresponding path program 1534 times [2022-03-15 15:40:04,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:04,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638501769] [2022-03-15 15:40:04,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:04,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:05,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:05,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638501769] [2022-03-15 15:40:05,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638501769] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:05,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:05,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:05,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478679850] [2022-03-15 15:40:05,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:05,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:05,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:05,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:05,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:05,111 INFO L87 Difference]: Start difference. First operand 5195 states and 24550 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:05,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:05,316 INFO L93 Difference]: Finished difference Result 11486 states and 51387 transitions. [2022-03-15 15:40:05,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:05,316 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:05,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:05,352 INFO L225 Difference]: With dead ends: 11486 [2022-03-15 15:40:05,352 INFO L226 Difference]: Without dead ends: 10939 [2022-03-15 15:40:05,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:05,352 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 164 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:05,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 212 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:05,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2022-03-15 15:40:05,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 5119. [2022-03-15 15:40:05,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 5118 states have (on average 4.733098866744823) internal successors, (24224), 5118 states have internal predecessors, (24224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:05,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 24224 transitions. [2022-03-15 15:40:05,491 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 24224 transitions. Word has length 29 [2022-03-15 15:40:05,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:05,491 INFO L470 AbstractCegarLoop]: Abstraction has 5119 states and 24224 transitions. [2022-03-15 15:40:05,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:05,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 24224 transitions. [2022-03-15 15:40:05,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:05,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:05,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:05,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1538 [2022-03-15 15:40:05,501 INFO L402 AbstractCegarLoop]: === Iteration 1540 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:05,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:05,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1787992451, now seen corresponding path program 1535 times [2022-03-15 15:40:05,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:05,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272026048] [2022-03-15 15:40:05,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:05,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:05,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:05,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272026048] [2022-03-15 15:40:05,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272026048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:05,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:05,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:05,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869881212] [2022-03-15 15:40:05,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:05,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:05,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:05,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:05,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:05,623 INFO L87 Difference]: Start difference. First operand 5119 states and 24224 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:05,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:05,797 INFO L93 Difference]: Finished difference Result 11488 states and 51432 transitions. [2022-03-15 15:40:05,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:05,797 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:05,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:05,831 INFO L225 Difference]: With dead ends: 11488 [2022-03-15 15:40:05,831 INFO L226 Difference]: Without dead ends: 11013 [2022-03-15 15:40:05,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:05,832 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 166 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:05,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 199 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:05,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11013 states. [2022-03-15 15:40:05,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11013 to 5195. [2022-03-15 15:40:05,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5195 states, 5194 states have (on average 4.719291490180978) internal successors, (24512), 5194 states have internal predecessors, (24512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:05,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 5195 states and 24512 transitions. [2022-03-15 15:40:05,976 INFO L78 Accepts]: Start accepts. Automaton has 5195 states and 24512 transitions. Word has length 29 [2022-03-15 15:40:05,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:05,976 INFO L470 AbstractCegarLoop]: Abstraction has 5195 states and 24512 transitions. [2022-03-15 15:40:05,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:05,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5195 states and 24512 transitions. [2022-03-15 15:40:05,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:05,986 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:05,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:05,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1539 [2022-03-15 15:40:05,986 INFO L402 AbstractCegarLoop]: === Iteration 1541 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:05,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:05,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1425912219, now seen corresponding path program 1536 times [2022-03-15 15:40:05,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:05,986 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773529033] [2022-03-15 15:40:05,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:05,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:06,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:06,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:06,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773529033] [2022-03-15 15:40:06,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773529033] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:06,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:06,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:06,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187633130] [2022-03-15 15:40:06,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:06,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:06,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:06,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:06,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:06,128 INFO L87 Difference]: Start difference. First operand 5195 states and 24512 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:06,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:06,328 INFO L93 Difference]: Finished difference Result 11484 states and 51344 transitions. [2022-03-15 15:40:06,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:06,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:06,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:06,361 INFO L225 Difference]: With dead ends: 11484 [2022-03-15 15:40:06,362 INFO L226 Difference]: Without dead ends: 10887 [2022-03-15 15:40:06,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:06,362 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 152 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:06,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 211 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:06,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10887 states. [2022-03-15 15:40:06,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10887 to 5069. [2022-03-15 15:40:06,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5069 states, 5068 states have (on average 4.747632202052092) internal successors, (24061), 5068 states have internal predecessors, (24061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:06,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5069 states to 5069 states and 24061 transitions. [2022-03-15 15:40:06,496 INFO L78 Accepts]: Start accepts. Automaton has 5069 states and 24061 transitions. Word has length 29 [2022-03-15 15:40:06,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:06,497 INFO L470 AbstractCegarLoop]: Abstraction has 5069 states and 24061 transitions. [2022-03-15 15:40:06,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:06,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5069 states and 24061 transitions. [2022-03-15 15:40:06,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:06,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:06,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:06,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1540 [2022-03-15 15:40:06,506 INFO L402 AbstractCegarLoop]: === Iteration 1542 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:06,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:06,506 INFO L85 PathProgramCache]: Analyzing trace with hash -180456695, now seen corresponding path program 1537 times [2022-03-15 15:40:06,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:06,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75999657] [2022-03-15 15:40:06,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:06,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:06,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:06,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:06,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75999657] [2022-03-15 15:40:06,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75999657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:06,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:06,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:06,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088187776] [2022-03-15 15:40:06,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:06,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:06,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:06,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:06,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:06,654 INFO L87 Difference]: Start difference. First operand 5069 states and 24061 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:06,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:06,860 INFO L93 Difference]: Finished difference Result 12438 states and 55564 transitions. [2022-03-15 15:40:06,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:06,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:06,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:06,895 INFO L225 Difference]: With dead ends: 12438 [2022-03-15 15:40:06,895 INFO L226 Difference]: Without dead ends: 11896 [2022-03-15 15:40:06,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:06,896 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 179 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:06,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 189 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:06,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11896 states. [2022-03-15 15:40:07,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11896 to 5350. [2022-03-15 15:40:07,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5350 states, 5349 states have (on average 4.713965227145261) internal successors, (25215), 5349 states have internal predecessors, (25215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:07,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5350 states to 5350 states and 25215 transitions. [2022-03-15 15:40:07,044 INFO L78 Accepts]: Start accepts. Automaton has 5350 states and 25215 transitions. Word has length 29 [2022-03-15 15:40:07,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:07,044 INFO L470 AbstractCegarLoop]: Abstraction has 5350 states and 25215 transitions. [2022-03-15 15:40:07,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:07,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5350 states and 25215 transitions. [2022-03-15 15:40:07,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:07,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:07,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:07,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1541 [2022-03-15 15:40:07,054 INFO L402 AbstractCegarLoop]: === Iteration 1543 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:07,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:07,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2071173607, now seen corresponding path program 1538 times [2022-03-15 15:40:07,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:07,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71853046] [2022-03-15 15:40:07,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:07,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:07,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:07,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:07,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71853046] [2022-03-15 15:40:07,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71853046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:07,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:07,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:07,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671322715] [2022-03-15 15:40:07,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:07,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:07,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:07,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:07,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:07,200 INFO L87 Difference]: Start difference. First operand 5350 states and 25215 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:07,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:07,491 INFO L93 Difference]: Finished difference Result 12373 states and 55195 transitions. [2022-03-15 15:40:07,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:07,491 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:07,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:07,529 INFO L225 Difference]: With dead ends: 12373 [2022-03-15 15:40:07,529 INFO L226 Difference]: Without dead ends: 11753 [2022-03-15 15:40:07,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:07,529 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 162 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:07,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 228 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:07,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11753 states. [2022-03-15 15:40:07,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11753 to 5207. [2022-03-15 15:40:07,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.730119093353823) internal successors, (24625), 5206 states have internal predecessors, (24625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:07,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24625 transitions. [2022-03-15 15:40:07,670 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24625 transitions. Word has length 29 [2022-03-15 15:40:07,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:07,670 INFO L470 AbstractCegarLoop]: Abstraction has 5207 states and 24625 transitions. [2022-03-15 15:40:07,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:07,670 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24625 transitions. [2022-03-15 15:40:07,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:07,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:07,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:07,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1542 [2022-03-15 15:40:07,680 INFO L402 AbstractCegarLoop]: === Iteration 1544 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:07,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:07,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1998430951, now seen corresponding path program 1539 times [2022-03-15 15:40:07,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:07,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478534861] [2022-03-15 15:40:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:07,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:07,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:07,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478534861] [2022-03-15 15:40:07,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478534861] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:07,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:07,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:07,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137230961] [2022-03-15 15:40:07,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:07,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:07,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:07,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:07,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:07,840 INFO L87 Difference]: Start difference. First operand 5207 states and 24625 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:08,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:08,062 INFO L93 Difference]: Finished difference Result 12403 states and 55373 transitions. [2022-03-15 15:40:08,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:08,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:08,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:08,098 INFO L225 Difference]: With dead ends: 12403 [2022-03-15 15:40:08,098 INFO L226 Difference]: Without dead ends: 11861 [2022-03-15 15:40:08,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:08,099 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 177 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:08,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 225 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:08,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11861 states. [2022-03-15 15:40:08,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11861 to 5317. [2022-03-15 15:40:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5317 states, 5316 states have (on average 4.708427389014297) internal successors, (25030), 5316 states have internal predecessors, (25030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:08,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5317 states to 5317 states and 25030 transitions. [2022-03-15 15:40:08,248 INFO L78 Accepts]: Start accepts. Automaton has 5317 states and 25030 transitions. Word has length 29 [2022-03-15 15:40:08,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:08,248 INFO L470 AbstractCegarLoop]: Abstraction has 5317 states and 25030 transitions. [2022-03-15 15:40:08,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:08,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5317 states and 25030 transitions. [2022-03-15 15:40:08,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:08,258 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:08,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:08,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1543 [2022-03-15 15:40:08,258 INFO L402 AbstractCegarLoop]: === Iteration 1545 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:08,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:08,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1740748057, now seen corresponding path program 1540 times [2022-03-15 15:40:08,258 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:08,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405574434] [2022-03-15 15:40:08,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:08,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:08,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:08,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:08,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405574434] [2022-03-15 15:40:08,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405574434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:08,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:08,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:08,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633137702] [2022-03-15 15:40:08,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:08,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:08,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:08,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:08,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:08,372 INFO L87 Difference]: Start difference. First operand 5317 states and 25030 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:08,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:40:08,567 INFO L93 Difference]: Finished difference Result 12336 states and 55000 transitions. [2022-03-15 15:40:08,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 15:40:08,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-03-15 15:40:08,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:40:08,602 INFO L225 Difference]: With dead ends: 12336 [2022-03-15 15:40:08,602 INFO L226 Difference]: Without dead ends: 11751 [2022-03-15 15:40:08,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:40:08,603 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 177 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:08,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 186 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:40:08,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11751 states. [2022-03-15 15:40:08,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11751 to 5207. [2022-03-15 15:40:08,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 4.719554360353438) internal successors, (24570), 5206 states have internal predecessors, (24570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:08,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 24570 transitions. [2022-03-15 15:40:08,747 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 24570 transitions. Word has length 29 [2022-03-15 15:40:08,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:40:08,747 INFO L470 AbstractCegarLoop]: Abstraction has 5207 states and 24570 transitions. [2022-03-15 15:40:08,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:40:08,747 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 24570 transitions. [2022-03-15 15:40:08,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-03-15 15:40:08,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:40:08,757 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:40:08,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1544 [2022-03-15 15:40:08,757 INFO L402 AbstractCegarLoop]: === Iteration 1546 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-03-15 15:40:08,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:40:08,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1314188731, now seen corresponding path program 1541 times [2022-03-15 15:40:08,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:40:08,758 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095268687] [2022-03-15 15:40:08,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:40:08,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:40:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:40:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:40:08,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:40:08,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095268687] [2022-03-15 15:40:08,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095268687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:40:08,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:40:08,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-15 15:40:08,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021662122] [2022-03-15 15:40:08,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:40:08,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:40:08,924 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:40:08,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:40:08,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:08,924 INFO L87 Difference]: Start difference. First operand 5207 states and 24570 transitions. Second operand has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-03-15 15:40:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 15:40:08,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:40:08,959 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:40:08,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 37 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:40:08,960 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (7 of 8 remaining) [2022-03-15 15:40:08,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1545 [2022-03-15 15:40:08,961 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (5207states) and FLOYD_HOARE automaton (currently 5 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (45 states constructed, input type IntersectNwa). [2022-03-15 15:40:08,962 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (6 of 8 remaining) [2022-03-15 15:40:08,962 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (5 of 8 remaining) [2022-03-15 15:40:08,962 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (4 of 8 remaining) [2022-03-15 15:40:08,962 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (3 of 8 remaining) [2022-03-15 15:40:08,962 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4INUSE_VIOLATION (2 of 8 remaining) [2022-03-15 15:40:08,962 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5INUSE_VIOLATION (1 of 8 remaining) [2022-03-15 15:40:08,962 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6INUSE_VIOLATION (0 of 8 remaining) [2022-03-15 15:40:08,964 INFO L732 BasicCegarLoop]: Path program histogram: [1541, 1, 1, 1, 1, 1] [2022-03-15 15:40:08,965 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 15:40:08,965 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 15:40:08,967 INFO L202 PluginConnector]: Adding new model example_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 03:40:08 BasicIcfg [2022-03-15 15:40:08,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 15:40:08,976 INFO L158 Benchmark]: Toolchain (without parser) took 862070.57ms. Allocated memory was 218.1MB in the beginning and 5.0GB in the end (delta: 4.8GB). Free memory was 178.8MB in the beginning and 3.7GB in the end (delta: -3.5GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-15 15:40:08,977 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 218.1MB. Free memory is still 179.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 15:40:08,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.02ms. Allocated memory is still 218.1MB. Free memory was 178.7MB in the beginning and 177.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 15:40:08,977 INFO L158 Benchmark]: Boogie Preprocessor took 13.93ms. Allocated memory is still 218.1MB. Free memory was 177.1MB in the beginning and 176.3MB in the end (delta: 861.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 15:40:08,978 INFO L158 Benchmark]: RCFGBuilder took 202.45ms. Allocated memory is still 218.1MB. Free memory was 176.2MB in the beginning and 167.4MB in the end (delta: 8.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-15 15:40:08,978 INFO L158 Benchmark]: TraceAbstraction took 861794.80ms. Allocated memory was 218.1MB in the beginning and 5.0GB in the end (delta: 4.8GB). Free memory was 166.8MB in the beginning and 3.7GB in the end (delta: -3.5GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-03-15 15:40:08,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09ms. Allocated memory is still 218.1MB. Free memory is still 179.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.02ms. Allocated memory is still 218.1MB. Free memory was 178.7MB in the beginning and 177.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.93ms. Allocated memory is still 218.1MB. Free memory was 177.1MB in the beginning and 176.3MB in the end (delta: 861.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 202.45ms. Allocated memory is still 218.1MB. Free memory was 176.2MB in the beginning and 167.4MB in the end (delta: 8.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 861794.80ms. Allocated memory was 218.1MB in the beginning and 5.0GB in the end (delta: 4.8GB). Free memory was 166.8MB in the beginning and 3.7GB in the end (delta: -3.5GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (5207states) and FLOYD_HOARE automaton (currently 5 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (45 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 10]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5207states) and FLOYD_HOARE automaton (currently 5 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (45 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 15]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5207states) and FLOYD_HOARE automaton (currently 5 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (45 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 14]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5207states) and FLOYD_HOARE automaton (currently 5 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (45 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5207states) and FLOYD_HOARE automaton (currently 5 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (45 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 17]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5207states) and FLOYD_HOARE automaton (currently 5 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (45 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5207states) and FLOYD_HOARE automaton (currently 5 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (45 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5207states) and FLOYD_HOARE automaton (currently 5 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (45 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 15 procedures, 67 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 861.7s, OverallIterations: 1546, TraceHistogramMax: 1, PathProgramHistogramMax: 1541, EmptinessCheckTime: 16.6s, AutomataDifference: 366.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 251555 SdHoareTripleChecker+Valid, 178.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 251555 mSDsluCounter, 334786 SdHoareTripleChecker+Invalid, 149.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 463168 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 406171 IncrementalHoareTripleChecker+Invalid, 406186 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 113899 mSDtfsCounter, 406171 mSolverCounterSat, 1.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13883 GetRequests, 1551 SyntacticMatches, 0 SemanticMatches, 12332 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7705 ImplicationChecksByTransitivity, 139.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17478occurred in iteration=0, InterpolantAutomatonStates: 13875, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 242.8s AutomataMinimizationTime, 1545 MinimizatonAttempts, 8564762 StatesRemovedByMinimization, 1540 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 228.5s InterpolantComputationTime, 44834 NumberOfCodeBlocks, 44834 NumberOfCodeBlocksAsserted, 1546 NumberOfCheckSat, 43288 ConstructedInterpolants, 0 QuantifiedInterpolants, 1225047 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1546 InterpolantComputations, 1546 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown